1 00:00:06,480 --> 00:00:39,079 Paul Ask What Up? What Up? Everybody? Welcome to another episode Let's 2 00:00:39,159 --> 00:00:44,000 Ask Paul, the podcast where you get to ask me anything you want about 3 00:00:44,000 --> 00:00:49,759 the electrical industry, whether it's code, being in business, contracting theory. 4 00:00:49,840 --> 00:00:53,240 If you want go for it. All you gotta do is go to Paul 5 00:00:53,240 --> 00:00:57,479 Abernathy dot com. It's a free service sponsored by Wicks where you can submit 6 00:00:57,560 --> 00:01:02,320 any question you want to me and it will be selected for an upcoming podcast 7 00:01:02,439 --> 00:01:07,000 or maybe even an email if it's something that I feel wouldn't be very conducive 8 00:01:07,040 --> 00:01:11,640 to a podcast, I'm still going to answer your questions. So it's a 9 00:01:11,680 --> 00:01:15,120 free service again Paul Abernathy dot com. It doesn't cost you a time. 10 00:01:15,719 --> 00:01:19,959 You also can listen to all of the Let's Ask Paul podcast directly from that 11 00:01:19,000 --> 00:01:25,239 website as well. It's very mobile friendly so that it adapts to mobile use. 12 00:01:25,319 --> 00:01:27,519 Just go to Paul Abernacty dot com if you want to submit that. 13 00:01:27,799 --> 00:01:30,319 If you have our mobile app, there's a quick feature on there that you 14 00:01:30,319 --> 00:01:34,239 can get to that right away in the resources and that way you can do 15 00:01:34,280 --> 00:01:38,640 it in the field and we will get you an answer. Okay, anyway, 16 00:01:38,959 --> 00:01:46,599 Welcome to today's episode. Again sponsored by Electrical Code Academy Incorporated, is 17 00:01:46,680 --> 00:01:51,519 the leading provider of electrical code related education. We don't do the hands on 18 00:01:51,599 --> 00:01:55,040 folks, We just do code, whether it's residential, commercial, industrial, 19 00:01:55,079 --> 00:02:00,840 grounding and bonding, HVAC, electrical, industrial wiring, electrical got a real 20 00:02:00,920 --> 00:02:05,519 extensive course in that called Magenta. It's not for the faint at heart, 21 00:02:05,560 --> 00:02:08,479 to tell you that. And obviously we have our exam preps black and the 22 00:02:08,520 --> 00:02:14,520 plus and even budget courses today, so we have a little bit for everybody, 23 00:02:14,599 --> 00:02:16,479 even if you're not preparing for an electrical exam, but you just want 24 00:02:16,520 --> 00:02:21,360 to maybe you're a company. We have companies who have all of their electricians 25 00:02:21,400 --> 00:02:25,599 on the program, so one they can use it for raises and bonuses and 26 00:02:25,960 --> 00:02:30,000 if anything, is to make sure that everybody in the company is on the 27 00:02:30,039 --> 00:02:35,719 same track now so that there's no excitement and no surprises. Everybody's kind of 28 00:02:35,719 --> 00:02:39,520 doing the same thing. Everybody's staying code compliant, less issues on inspections and 29 00:02:40,360 --> 00:02:45,120 yeah, you know, whatever your choice, Electrical Code Academy has something for 30 00:02:45,159 --> 00:02:50,000 you. Just go to our website. Fast tracks system that's fast t R 31 00:02:50,080 --> 00:02:54,479 A X S, Y S T E M dot com Okay, you could 32 00:02:54,520 --> 00:03:00,159 google fast track system online too on any of your Google whatever being and I'm 33 00:03:00,159 --> 00:03:04,400 sure we'll come up with that too as well. All Right, well, 34 00:03:04,599 --> 00:03:07,800 hey, thanks for joining me today on this podcast. I've got a very 35 00:03:07,840 --> 00:03:12,560 interesting question. It was submitted and we want to make sure that we cover 36 00:03:12,639 --> 00:03:16,520 that topic in this episode, and also want to give a shout out to 37 00:03:16,599 --> 00:03:22,680 our fast Tracks Tube. If you have not visited fast tracks Tube. Now, 38 00:03:22,719 --> 00:03:23,879 if you're not a subscriber, you're not going to see a whole bunch. 39 00:03:24,080 --> 00:03:27,240 You're gonna see a bunch of stuff that's going to require you to get 40 00:03:27,240 --> 00:03:31,639 a subscription. But what you can see is that we have an extensive database. 41 00:03:31,719 --> 00:03:35,759 The search feature works, go to the top type in box fille, 42 00:03:35,840 --> 00:03:38,879 for example, You're going to see an extensive collection of videos, not by 43 00:03:38,879 --> 00:03:43,280 just me, by other educators in the industry. And the beautiful thing about 44 00:03:43,280 --> 00:03:46,120 fast tracks Tube is that we rip out all the commercials, none of that 45 00:03:46,199 --> 00:03:52,280 bullcrap. It's just education and all of the videos have been vetted by me 46 00:03:52,479 --> 00:03:55,360 personally, so that you're not going to get any fluff or poor content. 47 00:03:55,599 --> 00:04:00,800 They're all very good content, and that's part of the reason it's a subscription 48 00:04:00,840 --> 00:04:04,080 based platform is because we spend the time to filter out and only add stuff 49 00:04:04,080 --> 00:04:09,280 that's relevant, not the garbage that you might get on a YouTube, and 50 00:04:09,319 --> 00:04:12,840 you usually don't know whether you can trust the source or not. If we 51 00:04:12,879 --> 00:04:16,000 put it up on fast tracks Tube, you can trust the source. So 52 00:04:16,120 --> 00:04:19,519 basically, it's your own little video resource in your pocket no matter where you 53 00:04:19,560 --> 00:04:24,759 go. It works great on websites. Check it out fast tracks tube dot 54 00:04:24,800 --> 00:04:28,560 com. All right, today's episode, we have something submitted to me, 55 00:04:29,240 --> 00:04:34,600 and it looks like it's focusing on the most common wiring method out there in 56 00:04:34,639 --> 00:04:41,439 the industry for residential You guessed it, non metallic sheet cable. So I'm 57 00:04:41,480 --> 00:04:45,720 gonna read the question and then I'll go into a little a little more detail. 58 00:04:46,319 --> 00:04:49,279 Greetings, Paul. I love your podcasts, love your videos. I 59 00:04:49,399 --> 00:04:54,040 love what you do for the industry. Keep up the good work. I've 60 00:04:54,040 --> 00:04:58,000 heard you talk from time to time about how important it is to understand non 61 00:04:58,000 --> 00:05:01,319 metallic sheet cable, and many of us in the field take it for granted. 62 00:05:01,920 --> 00:05:09,079 Can you please do a podcast explaining all the important nuances of non metallic 63 00:05:09,160 --> 00:05:14,439 sheet cable and maybe even give us some tidbits. I like that tidbits, 64 00:05:14,680 --> 00:05:18,360 tidbits of information that can help us grow in the field, to become more 65 00:05:18,399 --> 00:05:23,959 knowledgeable. All my guys listen to your podcasts every morning before we go to 66 00:05:24,000 --> 00:05:30,480 work. Keep them coming. Thanks in advance. Okay, great, wonderful. 67 00:05:30,879 --> 00:05:35,199 I loved how that flowed. Very good question, and it's very broad, 68 00:05:35,360 --> 00:05:39,279 all right, enough of that, very broad, very broad because you're 69 00:05:39,279 --> 00:05:43,680 asking about nomata non metallic sheath cable. And you know what, if you're 70 00:05:43,759 --> 00:05:46,439 new to non metallic sheet cable or you're like, what the hell is it, 71 00:05:46,279 --> 00:05:50,839 it is probably what's in your home. Okay, So go to somewhere 72 00:05:50,839 --> 00:05:55,279 in your home that is not covered by sheet rock and you have some wearing 73 00:05:55,279 --> 00:05:59,040 in it. Unless you're dealing in the nineteen forties and fifties or whatnot, 74 00:05:59,160 --> 00:06:03,240 chances are you're going to be having nonmetallics sheet cable. It is a sheathing 75 00:06:03,879 --> 00:06:12,800 like an extrusion of PVC material over top of individual conductors inside that can be 76 00:06:12,920 --> 00:06:17,639 flat or plexed means pre twisted, and it is the most common wiring method 77 00:06:17,759 --> 00:06:25,639 used in the electrical industry for residential applications and even light commercial applications. Remember, 78 00:06:26,120 --> 00:06:30,160 if you can build it out of wood, then chances are you could 79 00:06:30,240 --> 00:06:34,800 use nonmetallic sheet cable at it. Obviously, the caveat is check your local 80 00:06:34,920 --> 00:06:40,040 building rules and YadA, YadA, YadA. But again, chances are if 81 00:06:40,079 --> 00:06:45,199 it's type three, four or five construction, then you're okay to use nonmetallic 82 00:06:45,279 --> 00:06:47,879 sheet cable. So first of all, I guess let's kind of give a 83 00:06:47,920 --> 00:06:53,800 scope of non metallic sheet cable it. You know, many people refer to 84 00:06:53,839 --> 00:06:58,279 this as romax. Okay, So that's something that makes it a little easier 85 00:06:58,279 --> 00:07:01,240 for you to remember or understand. Now, Romax is a trademark of south 86 00:07:01,319 --> 00:07:06,920 Wire. Now Southwire is a leading manufacturer of non metallic sheet cable. So 87 00:07:08,160 --> 00:07:15,240 is on Coal Wire Corporation. So is zero right? So is? I 88 00:07:15,360 --> 00:07:21,199 think it's CME. So there's plenty of manufacturers that make non metallic sheet cable. 89 00:07:21,240 --> 00:07:25,160 Now, all of these manufacturers, okay, there's something that I always 90 00:07:25,199 --> 00:07:29,720 have to tell people. All of these manufacturers make it to the same UL 91 00:07:29,800 --> 00:07:34,800 standard. So the UL standard that's Underwriter's laboratory, there's an ant CUL standard 92 00:07:35,000 --> 00:07:41,519 that gives the manufacturers kind of the guidelines on production. That way, there's 93 00:07:41,560 --> 00:07:47,279 a standardization we know it's safe, and that's UL seven nineteen if you've never 94 00:07:47,399 --> 00:07:53,720 heard that before. Seven nineteen is the kind of the the creation guide that 95 00:07:53,879 --> 00:07:59,199 all of the manufacturers use. So essentially, all of the non metallic sheet 96 00:07:59,240 --> 00:08:03,560 cable that's produced, no matter who it is, is the same. It 97 00:08:03,680 --> 00:08:09,639 works exactly the same. Now, what differentiates is different? Does that work 98 00:08:09,800 --> 00:08:16,920 differentiass What differentiates companies is their level of service that they provide additional assistance, 99 00:08:18,560 --> 00:08:24,399 how easily it is to obtain the material cost factors, which usually should be 100 00:08:24,439 --> 00:08:28,319 about the same cost wise, because copper is a commodity, right, so 101 00:08:28,519 --> 00:08:35,720 it kind of about the same. But really they're all produced basically exactly the 102 00:08:35,840 --> 00:08:39,360 same. You know, some people have their little nuances. No, this 103 00:08:39,480 --> 00:08:43,960 slides through the studs better than this and that and again. In most of 104 00:08:43,000 --> 00:08:48,360 the time me is an electrician, I end up saying that's bullshit. You 105 00:08:48,480 --> 00:08:52,519 know, it all pulls the same. Now, standards have changed a little 106 00:08:52,559 --> 00:08:56,759 bit, or the expectation has changed a little bit, so you might see 107 00:08:56,799 --> 00:09:01,159 that no metallity cables a little stiffer than it used to be. It's not 108 00:09:01,279 --> 00:09:05,159 as soft. That is due to crushing impact and things that are changing in 109 00:09:05,200 --> 00:09:09,360 the industry. But they're still compliant with seven nineteen, and all the manufacturers 110 00:09:09,360 --> 00:09:13,159 are are still on board. Okay, there's nobody being rogue out there, 111 00:09:13,240 --> 00:09:20,360 if you will. And so the one thing that I always tell people that 112 00:09:20,600 --> 00:09:24,759 you know, Nomatology Cable is a listed product. Okay, it's required to 113 00:09:24,799 --> 00:09:30,200 be listed by Dot six of the NEC. Now, remember the ANEC is 114 00:09:30,200 --> 00:09:35,519 not an installation guide. Okay, it's not for the untrained. But we 115 00:09:35,679 --> 00:09:39,960 know that if we install something in compliance with the ANEC, that it is 116 00:09:39,039 --> 00:09:46,679 a minimum, a minimum safety standard. Right. I know, I know. 117 00:09:46,840 --> 00:09:50,720 I've got my haters out there who say, Paul, it's not a 118 00:09:50,759 --> 00:09:54,440 minimum safety standards. Damn If it isn't, it's a minimum. If you 119 00:09:54,559 --> 00:09:58,080 do it less than the n EC, you're gonna get failed rejected. And 120 00:09:58,399 --> 00:10:01,600 if I can you in a courtroom, I'm going to rip you apart because 121 00:10:01,639 --> 00:10:05,279 it's less than the threshold. So it is a minimum standard. Those that 122 00:10:05,399 --> 00:10:11,240 say that it's not are just blowing wind, blowing wind. It is a 123 00:10:11,279 --> 00:10:13,960 minimum standard. You have to achieve it. Now, many people go beyond 124 00:10:15,120 --> 00:10:18,720 the minimum, and that's great, you have that prerogative. But there's nothing 125 00:10:18,799 --> 00:10:22,320 wrong with those that meet the minimum. It's still compliant. It's still fine. 126 00:10:22,279 --> 00:10:26,440 But it is required to be a listed product. And the article that 127 00:10:26,480 --> 00:10:31,840 we're talking about if you're in your National Electrical Code is three thirty four, 128 00:10:31,799 --> 00:10:37,480 right, So article three thirty four is what gives us the guidance are the 129 00:10:37,639 --> 00:10:41,559 minimum standards that we have to follow. And you know, if you're not 130 00:10:41,639 --> 00:10:46,279 familiar with working with the National Electrical Code, it's it's an intimidating document for 131 00:10:46,360 --> 00:10:50,039 many people. It definitely is. But once you learn the flow, the 132 00:10:50,159 --> 00:10:56,440 techniques and how things work, and it becomes much easier to be able to 133 00:10:56,519 --> 00:11:00,039 maneuver that document, especially under a stressful situation, maybe in the field the 134 00:11:00,120 --> 00:11:03,080 inspector's breathing down your neck, or if you're preparing for an electrical exam. 135 00:11:03,240 --> 00:11:07,519 It does become easier the more you work with it and use it. But 136 00:11:07,720 --> 00:11:11,960 Dots six, which is a section within the article three thirty four, says 137 00:11:13,080 --> 00:11:16,799 that in M and NMC, now the C deals with a corrosive environment. 138 00:11:18,159 --> 00:11:22,639 Most manufacturers don't make that product today, the NMC. They just use uf 139 00:11:22,960 --> 00:11:28,519 DA B as a alternative, right, and that's under three forty of the 140 00:11:28,639 --> 00:11:31,960 NBC, so it can be used as an alternative to no metallic sheet cable. 141 00:11:33,039 --> 00:11:35,840 Got some rules you gotta follow, but again it can it can be 142 00:11:35,879 --> 00:11:39,799 as an alternative, and that is okay for corrosive environment, that type of 143 00:11:39,879 --> 00:11:46,919 thing. So nobody makes the NMC really that I'm aware of, and I'm 144 00:11:46,960 --> 00:11:50,799 pretty intimate in the in that industry, so I can tell you I don't 145 00:11:50,799 --> 00:11:56,080 know of anybody that does that. Okay. Now, the interesting thing that 146 00:11:56,159 --> 00:11:58,320 people ask me all the time, so this is kind of answering these these 147 00:11:58,440 --> 00:12:05,120 questions, is where can I use non metallic sheet cable? Well, if 148 00:12:05,159 --> 00:12:09,360 you go to dot ten, which is the section within three thirty four, 149 00:12:09,240 --> 00:12:13,159 it will tell you where it's permitted. Now, this is not an all 150 00:12:13,200 --> 00:12:18,279 inclusive list, but this is you're gonna have to work with you, HJ. 151 00:12:18,480 --> 00:12:22,120 But this is the most These are the main lion share if you will, 152 00:12:22,440 --> 00:12:28,120 of locations or applications where non metallic sheet cable is perfectly fine. And 153 00:12:28,200 --> 00:12:31,960 you'll see that there's five listed in here, and it will cover some of 154 00:12:33,000 --> 00:12:35,440 these myths that people have. Okay. Number one it says one and two 155 00:12:35,480 --> 00:12:41,399 family dwellings and they're attached or detached garages and they're storage building. So this 156 00:12:41,600 --> 00:12:45,279 allows you to use non metallic sheet cable in a one family dwelling, each 157 00:12:45,399 --> 00:12:50,679 individual dwelling of a two family dwelling, okay, and to their detached garages 158 00:12:52,720 --> 00:12:56,480 right or attached garages. So again people ask all the time, I've got 159 00:12:56,559 --> 00:13:00,720 my house, I'm doing it a nonmetallic sheet cable, I'm build a garage 160 00:13:00,759 --> 00:13:05,720 out back. Can I wire it in non metallogy cable? Absolutely you can. 161 00:13:05,600 --> 00:13:11,720 It's associated with the dwelling and three thirty four dot ten, Item number 162 00:13:11,799 --> 00:13:16,200 one gives me that permission, so it's no, it's not really a question, 163 00:13:16,759 --> 00:13:20,480 go for it. The next thing is item number two, and it 164 00:13:20,559 --> 00:13:26,519 says multi family dwellings and their detached garages are permitted. Garage is permitted to 165 00:13:26,559 --> 00:13:31,639 be type three, four or five construction. So type three, four or 166 00:13:31,679 --> 00:13:37,600 five construction is associated with wood, okay, whether it's heavy timber and type 167 00:13:37,679 --> 00:13:45,879 four either way, it is is associated with a wood construction. So if 168 00:13:45,919 --> 00:13:50,600 the building is being built and it is wood construction, like let's say a 169 00:13:50,679 --> 00:13:54,159 multifamily dwelling, maybe it's four stories or five is sprinkled at, gotta be 170 00:13:54,240 --> 00:13:58,919 familiar with the building codes and that or but if it's but if it can 171 00:13:58,039 --> 00:14:03,799 be built out of wood, then most certainly the type of construction is going 172 00:14:03,840 --> 00:14:07,360 to be type three, four or five. And if that's the case, 173 00:14:07,120 --> 00:14:11,759 non metallic products are fine even up through the fourth and fifth floor. If 174 00:14:11,799 --> 00:14:15,600 it's sprinkled on the fifth floor, if they're using wood, then you can 175 00:14:15,720 --> 00:14:18,879 use non metallic sheet cable. It's perfectly fine. It's a listed product. 176 00:14:20,039 --> 00:14:22,639 Now, I know there's haters out there who said, no, I gotta 177 00:14:22,679 --> 00:14:24,440 use MC or no, I'm gonna pipe it all in, and I'm like, 178 00:14:24,559 --> 00:14:28,480 okay, whatever you can pound your chest. Reality is, I am 179 00:14:28,519 --> 00:14:31,639 an electrician. If it permits me to use non metallic sheet cable, and 180 00:14:31,679 --> 00:14:37,159 I can finish that job in a three quarters of the time I'm using non 181 00:14:37,200 --> 00:14:39,799 metallic sheet cable. I'm making sure that I bid at it. That okay. 182 00:14:41,799 --> 00:14:45,279 But at the end of the day, if it's a listed product, 183 00:14:45,399 --> 00:14:48,360 it works fine. It's been evaluated, it's been tested. You need to 184 00:14:48,440 --> 00:14:52,080 put it in undamaged, do everything right, follow all the rules. In 185 00:14:52,120 --> 00:14:54,799 three thirty four, I'm good to go, and so I can do any 186 00:14:54,840 --> 00:15:01,519 of those individual dwelling units. And if I'm doing a multi family apartment complex 187 00:15:01,000 --> 00:15:07,039 and they have separate detached garage units for each one of these apartments, then 188 00:15:07,159 --> 00:15:11,519 I can most certainly do them as well in nonmeatoic sheath cable. That's what 189 00:15:11,559 --> 00:15:16,559 it tells me three three four ten Item two. The third one says other 190 00:15:16,720 --> 00:15:20,320 structures permitted to be type three, four or five constructions. So you can 191 00:15:20,519 --> 00:15:26,200 have an office building, you could have a mini storage, you could have 192 00:15:28,240 --> 00:15:33,279 other types of things on office building. Okay, a local business that's being 193 00:15:33,399 --> 00:15:39,440 framed out of wood members, if it's type three or four or Type three, 194 00:15:39,559 --> 00:15:45,480 four or five construction, then I am most certainly can use a nonmetomic 195 00:15:45,559 --> 00:15:50,159 sheaf cable. Now, the only caveat here is it when it's another structure 196 00:15:50,240 --> 00:15:52,000 other than what we just talked about one and two family or multi family. 197 00:15:54,039 --> 00:15:56,799 Then it requires that those cables be concealed within the floors, walls, or 198 00:15:56,879 --> 00:16:03,519 ceilings that provide a thermal barrier of material that has at least a fifteen minute 199 00:16:03,559 --> 00:16:07,840 finish rating as identified in listing other fire rated assemblies. And it gives you 200 00:16:07,840 --> 00:16:14,080 an informational note that'll kind of give you that information NFPA two twenty. If 201 00:16:14,120 --> 00:16:17,159 you have link, you get it free, right, I mean, well 202 00:16:17,440 --> 00:16:19,720 not free, but it's on the app. So that's why I tell people 203 00:16:21,279 --> 00:16:26,000 as contractor I'm paying the one annually just so I can have link. Because 204 00:16:26,159 --> 00:16:29,600 again I have I have the ability to go to that NFPA two twenty and 205 00:16:29,759 --> 00:16:33,320 look, but that's typical sheet rock, drywall, gypsum would meet that, 206 00:16:34,039 --> 00:16:40,679 right, not a problem. So and also just so you know, you 207 00:16:40,799 --> 00:16:45,279 have informed an annexe, right, it's in your codebook, it's already there. 208 00:16:45,759 --> 00:16:48,399 And that annexe is also going to give you a description of the different 209 00:16:48,440 --> 00:16:52,480 building types with type one, type two, Type three, type four, 210 00:16:52,600 --> 00:16:56,799 type five or maybe type one AB or two. Maybe it's it's kind of 211 00:16:56,919 --> 00:17:02,279 all there. But if you're not a building person and you're not overly familiar 212 00:17:02,480 --> 00:17:07,599 with the building construction, you're just electrician, you know, having to NFPA 213 00:17:07,680 --> 00:17:11,079 two twenty there to give you the insight on the different types of building instructions 214 00:17:11,119 --> 00:17:14,599 can be beneficial. And again if you have link, it's already there, 215 00:17:14,720 --> 00:17:18,480 so use it. But informative NXE is a good start to get you there. 216 00:17:19,319 --> 00:17:22,920 For me, all I had to do is find out what the building 217 00:17:22,319 --> 00:17:27,960 was being listed as in the permitting and if it's type three, four or 218 00:17:29,039 --> 00:17:30,519 five and it was wood, then I knew that I could use nonmetallic in 219 00:17:30,599 --> 00:17:34,920 my bid reflected that that type of thing. So you know, all you 220 00:17:34,960 --> 00:17:38,240 gotta do is ask, do your due diligence, and you'll find out whether 221 00:17:38,359 --> 00:17:42,200 or not you can or you can. But again, obviously it's going to 222 00:17:42,279 --> 00:17:47,640 be behind that fireberry or at least fifteen minutes. So she rocked jips and 223 00:17:47,720 --> 00:17:52,400 things like that. I'd number four. And here's one that people question a 224 00:17:52,559 --> 00:18:00,039 lot is can I put non metallic sheet cable in the cable trays? Well, 225 00:18:00,200 --> 00:18:07,079 I am number four says cable trays in structures permitted to be type three, 226 00:18:07,200 --> 00:18:11,440 four or five again wood construction, where the cables are identified for the 227 00:18:11,599 --> 00:18:15,200 use. Now, when we say identified for the use, you gotta remember 228 00:18:15,240 --> 00:18:18,880 that not all non metallic sheath cables printing on the outside of it. Remember 229 00:18:18,920 --> 00:18:22,400 the conductors don't need to be printed on inside of non metallic sheath cable, 230 00:18:22,720 --> 00:18:26,920 but it has to be printed on the sheathing. Okay, whether it's printed 231 00:18:26,000 --> 00:18:32,720 on it, dot matrix, embossed, whatever kind of melted into it, 232 00:18:33,240 --> 00:18:37,319 it has to be the information on it. And if it doesn't say CT 233 00:18:37,599 --> 00:18:42,720 use on it, then you cannot put it in a cable tray. Okay, 234 00:18:42,960 --> 00:18:47,279 you just you can't do it. And not all non metallic sheet cables 235 00:18:48,720 --> 00:18:56,279 are marked for use in a cable tray, right, So just keep that 236 00:18:56,359 --> 00:18:57,680 in mind. Now, if you do go that route and you do have 237 00:18:57,880 --> 00:19:00,559 cable tray, you know they have some of them that are used in these 238 00:19:00,640 --> 00:19:06,759 really large houses, they have a cable tray system. It's also important to 239 00:19:06,799 --> 00:19:11,400 distinguish between what's called a cable tray and a cable management system. Not all 240 00:19:11,480 --> 00:19:15,319 cable management systems are cable trays. So you might be able to put your 241 00:19:15,400 --> 00:19:19,119 cables in a cable management system and the only thing you have to worry about 242 00:19:19,160 --> 00:19:25,359 is bundling and making sure you're not having a bundling issue, and they might 243 00:19:25,480 --> 00:19:30,240 not be cable trays, whereas you have certain restrictions with cable trays you have 244 00:19:30,319 --> 00:19:33,079 to be aware of. Right. So again, it's really important to identify 245 00:19:33,240 --> 00:19:37,279 the system that you're using. Don't be afraid to reach out to the manufacturers 246 00:19:37,319 --> 00:19:41,839 of the system you're using, get clarity, don't try to wing it on 247 00:19:41,920 --> 00:19:45,440 your own, be as don't be afraid to reach out and ask people. 248 00:19:45,599 --> 00:19:48,519 That's all I'm saying. Okay, don't have to be you know, kind 249 00:19:48,519 --> 00:19:51,440 of be humble in that we're just trying to get the job done. That's 250 00:19:51,440 --> 00:19:56,400 all. The last one here is one that people tend to question about is 251 00:19:56,480 --> 00:20:00,880 item number five. It says type one and two con juction where installed within 252 00:20:02,039 --> 00:20:03,839 raceways for me to be installed in type one type of good construction. So 253 00:20:03,920 --> 00:20:08,400 what does that mean? So you might have type one and type two if 254 00:20:08,440 --> 00:20:11,920 you were to go back and look at the construction that's typically stealing concrete, 255 00:20:14,119 --> 00:20:19,599 that type of thing as the predominant type of construction, and it required the 256 00:20:19,680 --> 00:20:26,079 wiring methods to be like emt rigid, intermediate, whatnot. So people think 257 00:20:26,279 --> 00:20:33,920 that I couldn't put no metaged cable and sleeve it in a raceway for some 258 00:20:33,119 --> 00:20:40,160 type of application where the wiring method was required to be a raceway, but 259 00:20:40,400 --> 00:20:42,599 for some reason I wanted to sleeve in a piece of nomatag sheed cable. 260 00:20:42,720 --> 00:20:47,680 That's perfectly okay under this rule. And there's a lot of people that think, 261 00:20:47,759 --> 00:20:49,680 WHOA, you can't put no metallogy cable in a raceway. That is 262 00:20:51,240 --> 00:20:57,200 not true. Not true. There's many aspects of the NC where it talks 263 00:20:57,200 --> 00:21:04,000 about cables inside. We get we get rules for raceway feel for cables treated 264 00:21:04,039 --> 00:21:08,400 as a single conductor, Chapter nine, Table one, and the various notes 265 00:21:08,480 --> 00:21:14,640 that are socia. There's mountains of evidence that allows us to put a cable 266 00:21:14,839 --> 00:21:18,400 inside of a raceway. Even in three thirty four, when we think that 267 00:21:18,480 --> 00:21:22,720 there's a possibility of physical damage, then it directly allows us to put a 268 00:21:22,799 --> 00:21:26,440 cable inside of a raceway. So, and this is just another example where 269 00:21:26,440 --> 00:21:30,319 it's flat out telling you if it's type one type two construction that happens to 270 00:21:30,359 --> 00:21:33,480 be what you're in, and you happen to have a piece of non metallic 271 00:21:33,559 --> 00:21:37,160 sheet cable handy and you want to use it, that's fine, perfectly, 272 00:21:37,319 --> 00:21:41,680 Okay, still has to be the raceway that's designed for that type of building, 273 00:21:42,599 --> 00:21:45,599 But this directly allows you to be able to put some non metallic in 274 00:21:45,720 --> 00:21:48,880 there if you need it to, as long as again you follow raceway feel 275 00:21:49,039 --> 00:21:52,279 and all that stuff, unless it's only for physical damage, and then the 276 00:21:52,400 --> 00:21:56,920 raceway feel kind of gets ignored for that type of thing. But anyway, 277 00:21:56,960 --> 00:22:03,319 you get the point. Now, those are the uses permitted, and then 278 00:22:03,400 --> 00:22:07,759 you get into what's called a breakdown of additional items. There's a there's an 279 00:22:07,799 --> 00:22:11,480 A and a B. Now we won't talk about B because that's NMC and 280 00:22:11,559 --> 00:22:15,039 nobody really makes NMC. Like I said, that's where you're going to use 281 00:22:15,559 --> 00:22:18,880 UF for that UNDERGRAMD feeder and branch an article three forty, you're gonna use 282 00:22:18,960 --> 00:22:22,640 that, and that's probably what most people do because you're not gonna find NMC 283 00:22:22,880 --> 00:22:29,519 from anybody again, C being corrosive. Now A is type n M. 284 00:22:29,799 --> 00:22:33,880 You know, remember Type n M also covers this new stuff called nmpcs. 285 00:22:34,640 --> 00:22:40,079 Okay, power control and signal all in one cable assembly. That's still just 286 00:22:40,319 --> 00:22:45,160 NM cable. It's just it used to be NMS right with an S on 287 00:22:45,240 --> 00:22:49,559 it, but a couple of cycles ago we got rid of that. Then 288 00:22:49,640 --> 00:22:56,279 it's kind of funny because then that was before we came out with the nmpcs, 289 00:22:56,559 --> 00:23:02,960 which is kind of part of my patents for the mc PCs, and 290 00:23:03,039 --> 00:23:06,680 I have a bunch of patents for that, but it came out with it 291 00:23:06,880 --> 00:23:10,200 also for the NM but is you know, it's kind of pointless to try 292 00:23:10,240 --> 00:23:14,039 to patent that. I'm not worth it. But the same kind of concept, 293 00:23:14,160 --> 00:23:18,920 whereas you have zero to ten volt signal and control cable inside of the 294 00:23:18,960 --> 00:23:22,480 same cable assembly with the power and in order to get that separation under seven 295 00:23:22,599 --> 00:23:26,759 twenty five of the NC, which is signaling control, you have to have 296 00:23:26,799 --> 00:23:30,200 at least at thirty mills of sheathing around your power conductors. Then that as 297 00:23:30,319 --> 00:23:36,680 acts as an adequate separation between the six hundre volt rated insulation and then the 298 00:23:37,319 --> 00:23:41,400 conductors and all that are inside of this lower voltage zero to ten volt control 299 00:23:41,480 --> 00:23:47,319 and signaling cable, So it allows it to do this, but that also 300 00:23:47,440 --> 00:23:51,319 falls under NM okay, so you're not going to see nmpcs here. If 301 00:23:51,359 --> 00:23:56,359 that's what you're using. It's just all m right, you know. Nomatology 302 00:23:56,519 --> 00:24:00,920 cable again referred to by many people as romex trade name for Southwire gum, 303 00:24:02,119 --> 00:24:07,440 but it's still just non metallic sheet cable. It states the permitted use. 304 00:24:07,559 --> 00:24:12,559 It says it for both exposed and concealed work in normally dry locations steps as 305 00:24:12,640 --> 00:24:18,759 prohibited in three through thirty four Dot ten three and of course three was the 306 00:24:18,880 --> 00:24:25,359 applications for other structures, and those applications okay, whereas obviously it can't be 307 00:24:25,440 --> 00:24:29,079 exposed because it said it had to be behind what a fifteen minute fire rating, 308 00:24:29,119 --> 00:24:33,160 so that's why it makes that statement. But if you're not in other 309 00:24:33,279 --> 00:24:36,680 structures, you're in one family, two family. People say, can I 310 00:24:36,839 --> 00:24:41,319 run non metallic sheet cable exposed? Absolutely you can. I mean it specifically 311 00:24:41,480 --> 00:24:47,559 allows you to do it. Right there in three thirty four dot ten A 312 00:24:48,319 --> 00:24:52,559 right says it in black and white. Now it is a dry location only 313 00:24:52,640 --> 00:24:57,119 product. So that brings me to the next question that people ask me about 314 00:24:57,200 --> 00:25:02,559 installing it in crosspaces is in Look, I'm here to tell you that ninety 315 00:25:02,640 --> 00:25:04,440 nine percent of the crawl spaces that I've ever been in, and I was 316 00:25:04,480 --> 00:25:08,240 from Virginia, I've been in my share of crass spaces, they were dry 317 00:25:08,319 --> 00:25:14,079 locations. They were inside the building envelope. There was no Brooker stream running 318 00:25:14,160 --> 00:25:18,680 through the crawl space. You know what you have to look at is if 319 00:25:18,720 --> 00:25:22,079 you're in that crawl space and you have regular floor joists that you see above 320 00:25:22,119 --> 00:25:26,720 you, you have regular insulation, all this type of then you've got a 321 00:25:26,799 --> 00:25:30,640 dry location. Now I get it. HJ can make whatever ruling they want. 322 00:25:30,799 --> 00:25:36,640 People can sit there and say, well, humidity and moisture whatever. 323 00:25:37,319 --> 00:25:38,599 I mean. I could say the same thing about a bathroom, but I 324 00:25:38,680 --> 00:25:42,440 can promise you that the light over the vanity does not have to be wet 325 00:25:42,519 --> 00:25:48,880 location rated or damp location rated just because it's in the bathroom. You get 326 00:25:48,920 --> 00:25:52,839 me get you feel when I'm laying down. So anybody can let their mind 327 00:25:52,920 --> 00:25:57,079 wander if they want to. But the majority of the crawl spaces that I 328 00:25:57,240 --> 00:26:03,319 have been involved in, I can honestly say that I would not call them 329 00:26:03,160 --> 00:26:07,480 a wet location. Whether it's a damp puddle in there or not, that 330 00:26:07,559 --> 00:26:11,880 doesn't mean that it's all of a sudden going to jump up and the cable 331 00:26:11,000 --> 00:26:14,400 is going to be submerged in it or whatever. You know what I'm saying. 332 00:26:15,119 --> 00:26:18,480 And if I look around and I've already see that it's not treated flooring, 333 00:26:18,720 --> 00:26:25,880 it's not it's within the building envelope, if you will, then I 334 00:26:26,160 --> 00:26:30,680 at the end of the day, I have a hard time believing that that 335 00:26:30,720 --> 00:26:37,079 would be anything other than a dry location. I'm just saying again, you 336 00:26:37,200 --> 00:26:40,960 have to deal with your HJ and sometimes the minds can wander and they can 337 00:26:41,039 --> 00:26:45,559 think what they want, but that's the reality of it. The next item 338 00:26:45,200 --> 00:26:52,160 that's permitted is that in him can be installed or fished in air voids in 339 00:26:52,240 --> 00:26:57,519 masonry, block or tile walls. So there is occasion where the blocking in 340 00:26:57,599 --> 00:27:03,319 your wall might be a great path, not in new construction because you would 341 00:27:03,359 --> 00:27:07,880 not fish it in new construction. You would not install it in these voids 342 00:27:07,920 --> 00:27:14,559 because you couldn't meet the securing and supporting requirements of DOT thirty. But is 343 00:27:14,640 --> 00:27:18,680 it allowed to be done? Sure? So I'm coming back to do some 344 00:27:18,799 --> 00:27:23,440 remodeling, some retro work or something like that, and I need to get 345 00:27:23,559 --> 00:27:30,200 into these air voids for masonry block or maybe it's a tile wall, and 346 00:27:30,240 --> 00:27:33,519 I need to fish it from A to B. Hopefully you're electrician, you 347 00:27:33,599 --> 00:27:36,440 know what we're talking about. Fishing, not with a fly rod, not 348 00:27:36,559 --> 00:27:38,920 out on the lake, but you know what I mean. Then it's perfectly 349 00:27:40,039 --> 00:27:44,960 okay. Now, the code doesn't give a distance that people ask me, 350 00:27:45,480 --> 00:27:48,319 not so much about NM cable, but asking me about the phishing allowance for 351 00:27:48,480 --> 00:27:51,960 MC for example, and they say, well, what's the maximum distance? 352 00:27:52,759 --> 00:27:56,799 Well, the code doesn't give you a maximum distance. It's kind of a 353 00:27:56,880 --> 00:28:00,720 common sense thing. This is not an installation guide, you know. But 354 00:28:03,759 --> 00:28:07,279 you are allowed to fish it in those voids. Now, you gotta remember 355 00:28:07,000 --> 00:28:11,200 that even when you do this, you're not going to fish it in these 356 00:28:11,319 --> 00:28:17,359 voids that are on a wall that's subject to moisture and dampness. And all 357 00:28:17,400 --> 00:28:19,200 that type of stuff. So again you still have to maintain that this is 358 00:28:19,319 --> 00:28:22,920 a dry location. And people say, well, Paul, I don't see 359 00:28:23,079 --> 00:28:26,960 that in that rule, but that's going to be picked up in the US 360 00:28:27,079 --> 00:28:30,559 is not permitted, so don't worry. So I'm just saving you a little 361 00:28:30,599 --> 00:28:36,200 grief from being inspection issues. Right. So those are uses pretty now. 362 00:28:37,440 --> 00:28:41,880 Dot twelve of three thirty four is uses not permitted, uses not permitted. 363 00:28:41,880 --> 00:28:45,359 It is not an all inclusive list. It's going to be again subject to 364 00:28:45,559 --> 00:28:51,880 the h J, but it is the most common applications and we'll just go 365 00:28:51,960 --> 00:28:55,960 over them really quickly. Item number one says in any dwelling or structure that's 366 00:28:56,000 --> 00:29:00,119 not specifically permitted and three thirty four dot ten one, two, three and 367 00:29:00,240 --> 00:29:03,680 five that's what we talked about. If it's a dwelling or structure that's it's 368 00:29:03,759 --> 00:29:07,920 one of those that we permitted one family, two family, multi family, 369 00:29:08,839 --> 00:29:17,079 and other structures as long as it's behind fifteen minutes. If there's any other 370 00:29:17,240 --> 00:29:22,200 dwelling or structure that would fall under this that is not covered by what we 371 00:29:22,319 --> 00:29:26,599 just talked about in three thirty four dot ten, then you could not use 372 00:29:26,640 --> 00:29:30,119 nonmetallog sheet cable. You just can't use it, use something else right straightforward. 373 00:29:32,079 --> 00:29:33,880 People get confused in this and I'm just going look, is all you 374 00:29:33,960 --> 00:29:38,720 gotta do is is your dwelling or structure is it meeting three thirty four dot 375 00:29:38,759 --> 00:29:41,799 ten, one two, three and five. If the answer is yes, 376 00:29:44,160 --> 00:29:48,240 then you can use nonmetallicg sheet cable. If the answer is no, then 377 00:29:48,359 --> 00:29:53,839 you can't use nomatology cable. Should be pretty straightforward. Also non metallic shet 378 00:29:53,839 --> 00:29:57,240 cable. I do't Number two is it can't be exposed within a dropped or 379 00:29:57,279 --> 00:30:03,000 suspended ceiling cavity in other than one and two family and multi families. Okay, 380 00:30:03,519 --> 00:30:10,359 so basically commercial. Fine, And this is where it brings me. 381 00:30:10,680 --> 00:30:14,839 Commercial. No, you can't use it or get it. Fine, you 382 00:30:14,880 --> 00:30:18,440 can't use it in commercials above dropped or suspended ceilings, but one and two 383 00:30:18,519 --> 00:30:26,000 family and multi family dwellings. The actual dwelling unit we can if it has 384 00:30:26,039 --> 00:30:27,839 a drop ceiling. Now here's where I get a lot of questions about what 385 00:30:27,920 --> 00:30:34,519 if it's an apartment complex in the common halls are drop ceiling, then no, 386 00:30:34,839 --> 00:30:38,319 that's not the dwelling unit. That's the common hall that falls on the 387 00:30:38,400 --> 00:30:41,640 commercial side. Of the building. So no, you couldn't use it in 388 00:30:41,720 --> 00:30:45,799 above those drop ceilings, but you could inside the individual dwelling units perfectly fine 389 00:30:47,039 --> 00:30:51,680 for that. At a number three service entrance cable, obviously you can't use 390 00:30:51,720 --> 00:30:52,920 it in for service entrance cable. I mean, why would you. It 391 00:30:53,039 --> 00:30:56,960 only goes up to a certain size anyway, it's not really applicable to the 392 00:30:56,039 --> 00:30:59,839 installations. So that's common sense, So you wouldn't use it as service. 393 00:31:00,160 --> 00:31:03,559 And we've got so many other options we you know. The next is in 394 00:31:03,640 --> 00:31:08,880 commercial garages having a hazardous classified locations as divined in five eleven dot thirteen. 395 00:31:08,960 --> 00:31:12,960 So obviously you're not going to use it in a commercial garage. Makes sense 396 00:31:14,839 --> 00:31:18,279 obviously if it's hazardous classified locations, a no brainer. The next one, 397 00:31:18,400 --> 00:31:23,480 number five in theaters or similar locations except where permitted in five eighteen dot four 398 00:31:23,559 --> 00:31:27,240 c. So you're not going to use it in the portions of the theater 399 00:31:29,039 --> 00:31:33,400 or similar that are places of assembly. Okay, we'll have over a hundred 400 00:31:33,440 --> 00:31:36,599 people and that type of thing. You're not going to do that. But 401 00:31:36,640 --> 00:31:40,559 when it makes reference except as permitted in five eighteen dot fourteen. See, 402 00:31:40,599 --> 00:31:45,720 now you do have some areas that are maybe administrative some other areas of this 403 00:31:45,880 --> 00:31:51,599 place of assembly that that are not going to meet that hundred over one hundred 404 00:31:51,599 --> 00:31:56,000 person threshold. That are maybe just the offices for maybe the clergy or maybe 405 00:31:56,079 --> 00:32:01,920 an office manager or whatnot. That's different. So you could have a building 406 00:32:02,000 --> 00:32:07,720 that has, you know, different classifications all within the same building, and 407 00:32:07,799 --> 00:32:10,960 the places of assembly under five eighteen is going to have certain wiring methods that 408 00:32:10,960 --> 00:32:17,960 are permitted there, but you could have outside of that area again just offices 409 00:32:19,039 --> 00:32:22,359 that are framed up in wood. No problem with using no metallic sheet cable 410 00:32:22,400 --> 00:32:27,119 in those areas, Okay, so you might have to use two different wire 411 00:32:27,200 --> 00:32:32,839 methods for them. The next one is motion picture studios. Obviously can't use 412 00:32:32,920 --> 00:32:39,240 it there. Storage battery rooms again, possible vapors and corrosive caustic things can't 413 00:32:39,279 --> 00:32:45,640 be in there. Eight in hoist ways or on elevators or escalators, no 414 00:32:45,799 --> 00:32:52,599 brainer. Nine embedded and poured concrete, cement or aggregate. I do get 415 00:32:52,640 --> 00:32:57,640 this question a lot. Can you embedded Obviously you can't put nomatadic sheet cable 416 00:32:57,680 --> 00:33:04,440 in the ground, but also obviously can't embedded in cement, concrete aggregate. 417 00:33:04,559 --> 00:33:07,960 That just yeah, you should know that by now you just can't do that. 418 00:33:07,640 --> 00:33:15,200 And at number ten obviously hazardous classified locations except where specifically permitted by other 419 00:33:15,319 --> 00:33:17,599 articles in this code. Again, it might be you have an area, 420 00:33:19,480 --> 00:33:22,720 let's say you have an aircraft hangar, and then you have an adjacent room 421 00:33:22,839 --> 00:33:29,759 or adjacent area that is, you know, not part of the classified it's 422 00:33:29,759 --> 00:33:35,680 a non classified area. And you have whatever in place to create that non 423 00:33:35,759 --> 00:33:40,200 classified area, whether it's exchanges of air ventilation, positive ventilation or positive pressure 424 00:33:40,319 --> 00:33:45,400 or whatever, whatever, it's an unclassified area. And if it's framed up 425 00:33:45,480 --> 00:33:50,759 wood and all that, then it's probably going to meet the allowances in three 426 00:33:50,839 --> 00:33:55,160 thirty four dot ten probably three other structures, and it's probably going to be 427 00:33:55,240 --> 00:34:00,519 in the walls behind the sheet rock fifteen fifteen minute fire rating. Then you're 428 00:34:00,559 --> 00:34:04,079 good to go. So it's so important to understand these things. And I 429 00:34:04,200 --> 00:34:10,280 think non metallic she cable is so misunderstood, so misunderstood one of the things 430 00:34:10,320 --> 00:34:15,599 that I think about about non metallic cable in general. And I kind of 431 00:34:15,639 --> 00:34:19,199 throw this out to a little tip because this is libable to be a long 432 00:34:19,320 --> 00:34:22,960 podcast, and I get it people don't like my long podcasts. I'm sorry, 433 00:34:23,519 --> 00:34:27,239 but I don't do multiple takes. Y'all know me. I've been doing 434 00:34:27,280 --> 00:34:30,800 this thirty two years. I'm probably the one of the only educators in the 435 00:34:30,880 --> 00:34:35,559 country who would just turn the mic on and just start talking code. I 436 00:34:35,639 --> 00:34:37,079 don't need to rehearse, I don't need to study. I don't need to 437 00:34:37,119 --> 00:34:40,559 do multiple takes. If it comes out of my mouth, I believe it. 438 00:34:42,480 --> 00:34:45,400 You can agree to disagree. I don't. I don't waste time on 439 00:34:45,440 --> 00:34:52,079 the bullshit. I give you the facts, and I've got so much up 440 00:34:52,159 --> 00:34:55,159 in this wicked head that I just try to give as much as I can, 441 00:34:55,960 --> 00:34:59,960 and sometimes I never know where to start. It doesn't make me great 442 00:35:00,119 --> 00:35:01,920 than anybody else. Look, don't it's not a holier than that thing. 443 00:35:02,000 --> 00:35:06,320 Folks. Don't. Please don't be hitting the thumbs down because of that, 444 00:35:06,360 --> 00:35:07,920 Because I got that one guy who thumbs down, and I know who he 445 00:35:08,000 --> 00:35:12,159 is because I can see him every time he does it. I guess he 446 00:35:12,199 --> 00:35:14,960 doesn't have a YouTube channel because he doesn't know I can see those things. 447 00:35:15,039 --> 00:35:20,760 But anyway, I see it, and that's fine. But I tell you 448 00:35:20,880 --> 00:35:24,400 these things because it's just the facts, the facts. I don't have to 449 00:35:24,639 --> 00:35:30,360 edit stuff that doesn't make me smarter than anybody, Absolutely not. You know, 450 00:35:30,480 --> 00:35:35,400 Mike Coult's probably forgotten more stuff than I know. Okay, Ryan Jackson's 451 00:35:35,440 --> 00:35:38,280 probably forgotten more stuff than I know. I don't know. But I do 452 00:35:38,440 --> 00:35:40,320 my best to give you what I can give you. And I'm a one 453 00:35:40,400 --> 00:35:43,920 take guy. I don't like to do multiple takes of any damn thing. 454 00:35:43,960 --> 00:35:46,519 I don't have the time for that. Because some people can appreciate that. 455 00:35:46,639 --> 00:35:52,320 Some people can. But one of the little tidbits the things that I tell 456 00:35:52,400 --> 00:35:54,960 people is when you think about non metallicy cable and you think about how important 457 00:35:54,960 --> 00:35:59,000 it is to the industry, how many of you know what the dash B 458 00:35:59,199 --> 00:36:02,360 means when you go by non metallic sheet cable and you know the NM, 459 00:36:04,280 --> 00:36:06,880 but do you know what the dash B? And if you're the select few 460 00:36:06,920 --> 00:36:12,880 out there who know what the dash B is, kudos to you because you 461 00:36:12,960 --> 00:36:16,960 know, at the end of the day, it's amazingly important, amazingly important. 462 00:36:17,679 --> 00:36:21,679 So let me let me kind of tell you the history here. The 463 00:36:21,800 --> 00:36:27,760 dash B came about in nineteen eighty four. It was an effort to that 464 00:36:27,920 --> 00:36:31,960 you will put together. It was an effort because we had issues of insulation 465 00:36:32,400 --> 00:36:38,960 on the conductors that were inside of the older type of NM being only rated 466 00:36:39,039 --> 00:36:43,480 sixty degrees C. Now you all know that today you still can't exceed the 467 00:36:43,559 --> 00:36:46,599 ampacity values of sixty degree even though you can use a ninety to adjusting correct 468 00:36:46,639 --> 00:36:53,960 and I'll explain why. Back then, what was happening is luminaires were expanding 469 00:36:54,599 --> 00:36:59,639 more wattage. People wanted more lighting, more intricate. People were putting up 470 00:36:59,679 --> 00:37:02,159 luminates. It had that insulation in their People were ripping out the insulation. 471 00:37:02,599 --> 00:37:07,840 Anyway, heat rises, and you were having problems with the transition between the 472 00:37:07,000 --> 00:37:12,920 leads from luminaires to the existing building wire which was rated sixty and the new 473 00:37:13,000 --> 00:37:19,280 wires and leads were rated ninety. And anyway, the breakdown was coming from 474 00:37:19,320 --> 00:37:23,840 the wiring that was part of the dwelling at the time created problems. So 475 00:37:24,159 --> 00:37:31,920 the industry changed. In the dash be simply signifies that the insulation on those 476 00:37:32,000 --> 00:37:37,400 conductors that are inside of that sheathing, no matter who the manufacturer is. 477 00:37:37,440 --> 00:37:42,800 By the way, the insulation on those conductors are rated ninety degrees C. 478 00:37:44,599 --> 00:37:51,800 Now you can only use that ampacity on table three ten sixteen for that ninety 479 00:37:51,840 --> 00:37:58,800 degrees C for the adjustment or corrective purposes. Okay, so if you have 480 00:37:59,039 --> 00:38:05,000 four more current conductors, you're using three ten fifteen C one, then you're 481 00:38:05,039 --> 00:38:10,719 gonna do You're gonna do an adjustment. If you have an ambient temperature that 482 00:38:10,960 --> 00:38:15,239 is other than thirty degrees celsius eighty six degrees fahrenheit, you're gonna use three 483 00:38:15,320 --> 00:38:24,760 ten fifteen B one one table. So what's significant for people is they talk 484 00:38:24,800 --> 00:38:32,360 about bundling and the importance of having that dash B is so important because it 485 00:38:32,440 --> 00:38:37,760 allows me to do an adjustment or a correction from a higher level of ampacity. 486 00:38:38,920 --> 00:38:45,639 So if I've got there's a picture I posted on I think it's LinkedIn. 487 00:38:45,119 --> 00:38:50,079 No sorry, sorry sorry. I posted on TikTok, and I don't 488 00:38:50,079 --> 00:38:55,119 do a lot on TikTok weird little platform. But I posted on TikTok and 489 00:38:55,159 --> 00:39:00,000 I posted on Instagram the two vertical platforms, and I do less of anything 490 00:39:00,039 --> 00:39:02,039 thing on but I you know, they know people seem to be very active 491 00:39:02,079 --> 00:39:06,920 on those, so I posted two questions. The feedback I got from people 492 00:39:07,039 --> 00:39:12,519 is really all over the place. Only very few called out the actual issue 493 00:39:12,599 --> 00:39:19,280 that was in the picture, which is a supporting issue but I got a 494 00:39:19,320 --> 00:39:22,840 lot of people call out the bundling, and I wanted to explain to people. 495 00:39:23,239 --> 00:39:29,039 One of the things to remember is that when you have the non metallic 496 00:39:29,119 --> 00:39:35,079 sheet cable, you could have up to nine current carrying conductors and still be 497 00:39:35,400 --> 00:39:43,679 okay. So you could have four twelve twos bundled together, even if it's 498 00:39:43,800 --> 00:39:47,320 more than twenty four inches bundled together, and it's still gonna be okay for 499 00:39:47,360 --> 00:39:52,960 a twenty amp over current device. If you didn't have that dash b then 500 00:39:53,000 --> 00:39:58,760 you would have to do that adjustment from the sixty degree column, and if 501 00:39:58,800 --> 00:40:02,519 you did that, you're gonna end up with conductor it's not worth anything, 502 00:40:04,679 --> 00:40:07,480 and you're gonna have to jump up in size. But the importance of that 503 00:40:07,559 --> 00:40:10,679 dash fee means I can start from the ninety So let me give you an 504 00:40:10,719 --> 00:40:15,880 example. Let me give you an example. Twelve two under three ten sixteen 505 00:40:16,119 --> 00:40:21,039 under the ninety degree column is thirty am peers. Now, we all know 506 00:40:21,199 --> 00:40:24,960 it's twelve gauge. It's good for twenty small conductor rules to forty four D 507 00:40:25,199 --> 00:40:30,400 protects it at twenty. We all get it. We know that. But 508 00:40:30,519 --> 00:40:35,679 if you look at three thirty four eighty, it tells you that you're permitted 509 00:40:35,679 --> 00:40:38,440 to use the ninety for adjustment of corrective purposes as long as the end value 510 00:40:38,480 --> 00:40:42,639 doesn't exceed that of the sixty degree. So all we're trying to do is 511 00:40:42,679 --> 00:40:45,840 to make sure that after that adjustment of correction, which is basically a condition 512 00:40:45,880 --> 00:40:51,880 of use, whatever you're placing the cable in a certain condition, whether it's 513 00:40:51,880 --> 00:40:57,000 ambient temperatures or a certain number of current current conductors, will it still have 514 00:40:57,159 --> 00:41:02,000 the ability to handle the load in question, or is it going to be 515 00:41:02,159 --> 00:41:05,679 equal to or greater than what's in the six augree column. So that we 516 00:41:05,719 --> 00:41:07,679 don't have to do anything different, we can just follow our normal plan and 517 00:41:07,719 --> 00:41:13,920 our normal sizing. Everything we normally do. Well, if you think about 518 00:41:14,000 --> 00:41:22,199 this, if I have four NMB's stacked bundled, if they're bundled, okay, 519 00:41:22,920 --> 00:41:28,559 more than twenty four inches bundled. Let's say and I go to three 520 00:41:28,679 --> 00:41:32,599 ten fifteen C one, and you'll notice that when you have this case, 521 00:41:32,639 --> 00:41:36,280 will be four cables, two conductors in it, a black and a white, 522 00:41:36,320 --> 00:41:39,199 both are current current conductors. In this scenario, that's eight current current 523 00:41:39,239 --> 00:41:43,679 conductors. Then I'm going to be reducing it by seventy percent, okay. 524 00:41:45,039 --> 00:41:49,239 So you look at it that way and you go, okay, if I'm 525 00:41:49,280 --> 00:41:53,280 producing it up to seventy percent, because the eighty percent four to six and 526 00:41:53,599 --> 00:41:59,719 things like that, I believe I'm going off memory up. So if it's 527 00:42:00,280 --> 00:42:02,639 by seventy percent, basically you're dropping it thirty percent. So we say seventy 528 00:42:02,679 --> 00:42:09,280 percent de man factor, it's really reducing it thirty percent. So if I 529 00:42:09,400 --> 00:42:15,119 took the thirty and I'm multiplied by seventy percent, okay, then that gives 530 00:42:15,159 --> 00:42:21,360 me twenty one amps. So those conductors, even though they're bundled, because 531 00:42:21,440 --> 00:42:25,159 of the benefit of starting at the higher ampacity, because that insulation can handle 532 00:42:25,199 --> 00:42:30,719 a higher ampacity, it's still good for twenty one amps. Well, that 533 00:42:30,800 --> 00:42:34,159 means I can totally ignore anything and say, look, it's a twelve gage. 534 00:42:34,519 --> 00:42:37,880 It can be protected at twenty amps, and I can focus on the 535 00:42:37,920 --> 00:42:39,599 load and I don't have to worry about it. Even if I've got four 536 00:42:39,639 --> 00:42:45,000 cables bundled together, I'm perfectly fine. If I did not have that dash 537 00:42:45,039 --> 00:42:51,599 B or that didn't come into play back in nineteen eighty four, then I 538 00:42:51,639 --> 00:42:57,039 would be starting from a lower value twenty amps. Under the sixty. If 539 00:42:57,079 --> 00:43:00,360 you do twenty times seventy percent, that drops it down to fourteen amps. 540 00:43:02,679 --> 00:43:06,519 I'd be damn if I'm gonna have a conductor that's supposedly good for twenty amps 541 00:43:06,519 --> 00:43:08,239 and all I can do is only now it's only good for fourteen as because 542 00:43:08,239 --> 00:43:13,280 of bundling, which just means I'm gonna have to bump up the size of 543 00:43:13,320 --> 00:43:16,760 the cable and the conductors. So dash B is a beautiful thing, and 544 00:43:16,840 --> 00:43:22,440 I think people overlook that in the industry and they don't understand the significance of 545 00:43:22,559 --> 00:43:27,000 it. And so that's kind of the history, a little tidbit for you 546 00:43:27,360 --> 00:43:30,400 that explains the importance of that dash B in the everyday life. That what 547 00:43:30,559 --> 00:43:35,360 you do because you because you are going to be installing these cables in insulation, 548 00:43:36,639 --> 00:43:38,679 you're going to run into a bundling situation. As long as you keep 549 00:43:38,719 --> 00:43:43,440 it to nine current carrying conductors or less, whether it's ten gage, twelve 550 00:43:43,519 --> 00:43:46,639 gage, fourteen gays, and you're gonna still be okay, right, still 551 00:43:46,679 --> 00:43:51,880 gonna be okay. Just keep it to nine current carry conductors, maybe a 552 00:43:51,920 --> 00:43:57,440 fourteen three and three fourteen twos or you know, four fourteen twos. You 553 00:43:57,519 --> 00:44:00,079 know whatever, just keep it to nine or less then you're gonna be okay. 554 00:44:00,599 --> 00:44:05,480 Okay. So that's kind of the history of the dash B. That's 555 00:44:05,480 --> 00:44:07,800 the importance of the dash B. And again, I just wanted to make 556 00:44:07,840 --> 00:44:09,199 sure I threw that little tidbit out there, whether you like it or not. 557 00:44:09,320 --> 00:44:14,639 And that's sorry I had to throw it forty something minutes into the podcast. 558 00:44:14,719 --> 00:44:17,239 But hey, those that listen, those that watch, get a benefit. 559 00:44:17,920 --> 00:44:22,960 Now when we talk about exposed nomatolic sheet cable, people say, oh, 560 00:44:22,360 --> 00:44:25,679 can it be exposed? Can it be exposed? Absolutely, it can 561 00:44:25,840 --> 00:44:32,679 be, but it has to follow the surface of the building structure means following 562 00:44:32,760 --> 00:44:37,559 the framing, or on a running board means you run it a flat running 563 00:44:37,599 --> 00:44:39,840 board and you actually mount it to that, so it is actually running with 564 00:44:39,960 --> 00:44:45,000 the running board. That's all covered in three thirty four fifteen exposed work. 565 00:44:45,480 --> 00:44:49,880 Now, if there is an area where it makes it subject to physical damage, 566 00:44:49,880 --> 00:44:53,199 and again very subjective because we don't have any definitions of what that is. 567 00:44:53,440 --> 00:44:57,800 We have no definitions of physical damage. Nobody's presented it. It's been 568 00:44:58,000 --> 00:45:02,119 it's well, it's been presented to the code panel, but it's always rejected 569 00:45:04,639 --> 00:45:07,199 in the code we talk about physical damage, severe physical damage, and so 570 00:45:07,400 --> 00:45:14,719 far it's just nobody I guess has submitted something that makes the code panel happy 571 00:45:14,840 --> 00:45:20,400 enough to accept it as as part of a minimum standard. Yet so again, 572 00:45:20,599 --> 00:45:24,480 AHJ's have to have to be the ruling here and make that call. 573 00:45:25,239 --> 00:45:30,280 But if you're going to be installing it in somewhere where you know somebody rules 574 00:45:30,320 --> 00:45:36,480 it's subject physical damage, then it clearly states in three thirty four fifteen B 575 00:45:37,599 --> 00:45:40,840 the different wiring methods that you can install it in. So again, for 576 00:45:40,920 --> 00:45:46,840 anybody that says you can't install noomatology cable in a race way poppycock? Can 577 00:45:46,920 --> 00:45:52,039 I use poppycock? Is that is that today? But yeah, it's it's 578 00:45:52,360 --> 00:45:59,079 you can perfectly okay to do so. Also, it is perfectly okay to 579 00:45:59,280 --> 00:46:04,960 install it in under unfinished basements and in cross bass. You just have to 580 00:46:05,079 --> 00:46:08,840 follow all of the rules that are given to you in three thirty four dot 581 00:46:08,920 --> 00:46:15,280 fifteen C. Okay, And I sat Ryan people, I am in the 582 00:46:15,360 --> 00:46:20,679 twenty twenty three edition of the Nationalgical Code. Anybody ever asked what edition are 583 00:46:20,679 --> 00:46:23,320 you in? If you don't tell me when you submit something, I'm always 584 00:46:23,360 --> 00:46:27,760 going to go to the latest edition, right, always going to go to 585 00:46:27,840 --> 00:46:34,000 the latest edition. Right, let's see your I hope I'm answering all the 586 00:46:34,119 --> 00:46:37,000 questions that people that you know, kind of want to talk about. The 587 00:46:37,079 --> 00:46:40,679 next thing that people ask me about no metallic sheet cable is is there a 588 00:46:40,800 --> 00:46:45,599 bending radius? And obviously those that are familiar with the dot twenty four of 589 00:46:45,760 --> 00:46:53,440 most of the wiring cable I shouldn't said wiring cable cable articles know that that's 590 00:46:53,519 --> 00:46:58,679 pretty much the area where you're going to see bending radius minimums maintained bending radius. 591 00:46:59,320 --> 00:47:04,440 And so that's now exception for no metallic sheet cable. The radius of 592 00:47:04,519 --> 00:47:10,280 the inner curve, of the inner edge or the bin it shall not be 593 00:47:10,480 --> 00:47:15,920 less than, okay, less than five times a diameter or the cable it 594 00:47:16,039 --> 00:47:21,360 bending at any tighter than that causes the conductor's inside of it to have one 595 00:47:21,519 --> 00:47:27,000 side of the cable crinkle up. We call it caterpillaring. And then the 596 00:47:28,079 --> 00:47:34,000 outer edge of it gets elongated and it weakens the insulation. Okay, and 597 00:47:34,159 --> 00:47:37,159 in black insulation will happen as it'll get opaque or you can see where it's 598 00:47:37,199 --> 00:47:40,519 kind of been stressed and damaged. Might not have cracked, but it's stressed 599 00:47:40,559 --> 00:47:46,440 man, and that's going to affect the reliability of the insulation. Yeah, 600 00:47:46,480 --> 00:47:52,920 I remember the insulations. The conductor can handle way more current probably than what 601 00:47:52,039 --> 00:47:59,079 we list in table three ten sixteen, But it's the insulation that is the 602 00:47:59,159 --> 00:48:01,119 de volatile part. And if you break down that insulation, everything else goes 603 00:48:01,159 --> 00:48:07,840 to crap. Okay, everything else goes to crap. Now, when thinking 604 00:48:07,880 --> 00:48:10,159 about that five times the diameter of the cable, and it has to be 605 00:48:10,199 --> 00:48:15,840 at least that that creates kind of a more uniformed bend. There is now 606 00:48:16,000 --> 00:48:20,280 guidance in twenty twenty three because people said, well, do you use the 607 00:48:21,119 --> 00:48:27,280 width or the diameter the flat part or the major or minor portion of the 608 00:48:27,360 --> 00:48:30,840 cable. There's two different values when it comes to a flat cable like a 609 00:48:30,920 --> 00:48:34,599 fourteen two flat with black white and and equipment ground. So you have the 610 00:48:34,679 --> 00:48:37,679 long dimension in a side short dimension when you're trying to come up with that 611 00:48:38,079 --> 00:48:43,639 five times. And they clarified this in the twenty twenty three code. It 612 00:48:43,800 --> 00:48:49,159 says for flat cables, the major diameter dimension of the cables shall be used, 613 00:48:49,239 --> 00:48:52,320 and that's the widest part. That's the major diameter of the dimension. 614 00:48:52,440 --> 00:48:57,960 For the cable shall be used to determine the bending rays. So you're obviously 615 00:48:59,039 --> 00:49:02,679 this makes sense from a manufacturer of iron cable. The more that we can 616 00:49:02,760 --> 00:49:07,400 get you to make your bins more radial then puts less stress on the innerconductors, 617 00:49:08,639 --> 00:49:13,000 then that's better. If we let you use the short dimension, then 618 00:49:13,039 --> 00:49:16,159 that would be an awful tight bend, right. But prior to the twenty 619 00:49:16,239 --> 00:49:21,239 twenty three it was kind of debated which do you use. All of us 620 00:49:22,239 --> 00:49:25,199 in the industry always wanted to use the major diameter, but it wasn't clear. 621 00:49:25,960 --> 00:49:30,440 And I think that, you know, I remember something, I can't 622 00:49:30,440 --> 00:49:34,960 remember an episode or Ryan or Ryan Jackson. If y'all haven't checked out Ryan 623 00:49:35,039 --> 00:49:37,760 Jackson's channel, guys, you need to check out his channel. Just go 624 00:49:37,920 --> 00:49:42,280 to YouTube and search for Ryan Jackson. An amazing resource to the industry, 625 00:49:42,480 --> 00:49:47,360 great guy and a lot of useful information he provides, does a great job 626 00:49:47,440 --> 00:49:52,039 at it, does a lot of stuff for the iec IS. We also 627 00:49:52,119 --> 00:49:57,400 share his content over on fast tracks Tube because he's an amazing educator. But 628 00:49:57,559 --> 00:50:00,000 I think for years he was making the argument on which which do you use? 629 00:50:01,039 --> 00:50:05,239 You know, and without it being defined, you know, it's gonna 630 00:50:05,280 --> 00:50:09,840 have to be somebody's interpretation. Now, what usually would happen is an inspector 631 00:50:09,960 --> 00:50:14,800 would say, get with the manufacturer, and as a manufacturer, we would 632 00:50:14,840 --> 00:50:19,880 say, we want you to use the major. But it wasn't in writing 633 00:50:19,920 --> 00:50:22,639 anywhere. Well now it is. Now it is, and being that you're 634 00:50:22,679 --> 00:50:29,880 going to use the major, that's gonna make for a more nice, uniformed 635 00:50:29,960 --> 00:50:34,239 bend rather than a real tight bend. And I've seen people take in him 636 00:50:34,280 --> 00:50:37,320 cable, go over a box, go down and then turn right away three 637 00:50:37,519 --> 00:50:40,239 sixty no a one eighty, not three sixty one eighty, and go straight 638 00:50:40,280 --> 00:50:43,440 back up into the box. And then they want to be neat and they 639 00:50:43,880 --> 00:50:45,719 tighten it all down. And I've even seen them throw a staple over the 640 00:50:46,400 --> 00:50:50,559 one where it's going down and coming back up. So two cables under the 641 00:50:50,599 --> 00:50:53,719 staple, and then you've got this really tight Q tip type bend at the 642 00:50:53,840 --> 00:51:00,039 end, and it obviously exceeds it's tighter than five times. So that's that's 643 00:51:00,079 --> 00:51:06,039 not good. Long term, that's not good. So we have those rules 644 00:51:06,079 --> 00:51:07,800 in there, so you make sure you follow. Now. Of course the 645 00:51:07,880 --> 00:51:10,400 next thing would be securing it supporting. We all know the rules for securing, 646 00:51:10,440 --> 00:51:15,000 for supporting, we're gonna secure them every well, we're gonna support it 647 00:51:15,119 --> 00:51:19,480 every four and a half feet, right, that's the golden rule for no 648 00:51:19,559 --> 00:51:23,039 metallic sheet cable, right, and we're gonna secure it within twelve inches of 649 00:51:23,360 --> 00:51:29,920 every cable entry to an enclosure such as junction boxes, cabinets and whatnot as 650 00:51:29,960 --> 00:51:32,199 well. Now we also understand that we do have some other rules. Where 651 00:51:32,239 --> 00:51:37,320 we have a box, for example, that does not have a clamp on 652 00:51:37,440 --> 00:51:42,159 it, or does not have any type of clamping means, then we're gonna 653 00:51:42,159 --> 00:51:45,880 have to secure it. What We're gonna have to secure that within eight inches. 654 00:51:47,440 --> 00:51:52,119 Now, that is an example of where where people say, well where 655 00:51:52,199 --> 00:51:55,440 do I Where do I see that? Where do I go to find that 656 00:51:55,639 --> 00:52:02,519 rule? And that is an exception under three fourteen dot seventeen B two. 657 00:52:02,760 --> 00:52:07,440 Again, remember I'm in the twenty twenty twenty three editions, so may not 658 00:52:07,719 --> 00:52:10,760 be the edition you're under. Well, that one's when you have a box, 659 00:52:10,840 --> 00:52:14,679 for example, that's not larger than two and a quarter by four simple 660 00:52:14,800 --> 00:52:20,239 nail up box, right, simple carlon, car Carlon, what's the other 661 00:52:20,679 --> 00:52:25,960 cantacs or whatnot? Maybe Fayette Fayette is that how you say, at Fayette 662 00:52:27,000 --> 00:52:30,800 or Fiat, their brand just simple nail on boxes that are gonna be two 663 00:52:30,800 --> 00:52:37,320 and a quarter by four. Then in those then they don't have a connector 664 00:52:37,360 --> 00:52:39,480 built into them, or they don't have something that secures the cable to the 665 00:52:39,519 --> 00:52:45,159 box. That case, then you'll need to secure that NM cable within eight 666 00:52:45,239 --> 00:52:52,000 inches, right. So, but in general, if it has a clamp, 667 00:52:53,159 --> 00:52:55,760 then you're gonna go up to twelve inches. So remembering the four and 668 00:52:55,760 --> 00:53:02,000 a half feet and the twelve inch ro is what typically people will remember the 669 00:53:02,079 --> 00:53:08,639 most about non metallic sheet cable, right makes sense, So that's the part 670 00:53:08,679 --> 00:53:14,000 that you kind of kind of emblazing you in your mind that type of thing. 671 00:53:14,559 --> 00:53:16,239 And also I always remind people too that obviously, if you're running through 672 00:53:16,239 --> 00:53:19,880 the framing members, it's considered secured and supported. You don't have to do 673 00:53:19,960 --> 00:53:22,800 anything extra. But once it comes out of those board holes or punched holes, 674 00:53:23,119 --> 00:53:27,000 if you're using it in metal studs, which you can use in metal 675 00:53:27,079 --> 00:53:29,760 studs, as long as you put a gramt in there, it's a full 676 00:53:29,880 --> 00:53:34,480 inclusive grammet okay or bushing that covers the entire opening so that you don't have 677 00:53:34,559 --> 00:53:38,000 any chance of damaging the sheathing as you're pulling it as long as once it 678 00:53:38,119 --> 00:53:44,960 starts going horizontal, then you're gonna have to fall into your securing it every 679 00:53:45,000 --> 00:53:46,920 four and a half feet. If it's running horizontal, well, if you 680 00:53:47,000 --> 00:53:50,559 come out and go vertical with the framing member a parallel with it, then 681 00:53:50,559 --> 00:53:54,519 you're gonna have to follow the securing and supporting rules. If it's running horizontal 682 00:53:54,599 --> 00:53:59,440 through the board holes, then it's considered secure and supported anyway. And you 683 00:53:59,519 --> 00:54:04,000 probably all know that that probably is not something I need to tell you, 684 00:54:04,599 --> 00:54:09,079 but it might as well just throw it out there. Lastly, when we're 685 00:54:09,159 --> 00:54:15,119 talking about the ampacities of the importance of nomatallogy cable, i'll just cover and 686 00:54:15,159 --> 00:54:17,440 obviously this is not an all inclusive everything about non metalloghy cable. Trying to 687 00:54:17,480 --> 00:54:21,639 cover as much as I can, and I think again, I think people 688 00:54:21,719 --> 00:54:24,039 misunderstand the importance of it because you use it so often. You look at 689 00:54:24,039 --> 00:54:27,599 it and you think, a crap, this is just conductors in a sheathing. 690 00:54:28,599 --> 00:54:32,400 The nuances behind it. One of the areas I tell people to really 691 00:54:32,480 --> 00:54:40,679 focus on is three thirty four dot eighty ampacity because it tells you that the 692 00:54:40,800 --> 00:54:45,280 ampacity shall not exceed sixty degree see or one hundred and forty degrees hair and 693 00:54:45,559 --> 00:54:51,039 Rady conductor. But it then in the next sentence it says the ninety degree 694 00:54:51,159 --> 00:54:57,679 c rating shall be permitted to be used for ampacity adjustment and correction calculations, 695 00:54:58,519 --> 00:55:05,800 provided that the final calculated ampacity does not exceed that of the sixty ye rec 696 00:55:06,079 --> 00:55:09,280 rating conductor. So in our example, we took a twelve at thirty and 697 00:55:09,440 --> 00:55:13,920 after the adjustment of correction it's twenty one amps, and you're thinking, doesn't 698 00:55:13,960 --> 00:55:17,960 that exceed the sixty No, what that really means is you can't use it 699 00:55:20,119 --> 00:55:24,119 as twenty one amps. You still have to follow the values under the sixty 700 00:55:24,239 --> 00:55:29,159 which is the twenty amps, but you still have a conductor that is more 701 00:55:29,239 --> 00:55:32,840 than adequate to use. If I had done that adjustment of correction it ended 702 00:55:32,920 --> 00:55:37,639 up being dropping it down to eighteen amps. Then you have a problem, 703 00:55:38,840 --> 00:55:44,239 especially on all those circuits that require a minimum of twenty amp circuit like your 704 00:55:44,320 --> 00:55:47,320 small appliance brand circuit, your laundry, your bathroom, those type of things. 705 00:55:47,840 --> 00:55:51,360 You're going to have a cable that the conductors that are not rated for 706 00:55:51,440 --> 00:55:55,559 twenty that's going to be a problem. So again it's so important to understand 707 00:55:57,719 --> 00:56:02,039 the usage, so important under stand where we can make adjustments and corrections from 708 00:56:04,000 --> 00:56:06,800 and not just take it for granted in the field, because many people just 709 00:56:06,920 --> 00:56:10,159 take those things for granted. Okay. It also goes on to say the 710 00:56:10,239 --> 00:56:16,159 ampacity of type N N n MC cable installed in cable trays again where they're 711 00:56:16,239 --> 00:56:21,760 listed for that marked for that shabby determined in accordance with three ninety two dot 712 00:56:21,880 --> 00:56:24,840 eighty A. Three ninety two is the article four cable trays. So you're 713 00:56:24,840 --> 00:56:28,599 gonna get some guidance up there as well, So keep that in mind. 714 00:56:29,440 --> 00:56:32,559 And then the next two paragraphs are and I had a hand in it, 715 00:56:32,639 --> 00:56:39,360 and the twenty twenty three I had my change was in there added to it 716 00:56:39,920 --> 00:56:45,760 dealing with three fourteen dot fourteen A two and not being able to use the 717 00:56:45,800 --> 00:56:50,559 ten foot ten percent rule. You can't use it. And that's when you 718 00:56:50,639 --> 00:56:53,440 have maybe an area where the elevated temperature and then an area where it's not 719 00:56:53,559 --> 00:56:57,920 elevated, and if it's not more than ten foot of ten percent of the 720 00:56:58,119 --> 00:57:02,159 ten percent of the overall run, then you get to discount the higher area 721 00:57:02,280 --> 00:57:06,639 that has the higher impacity restriction in other words, a lot more heat, 722 00:57:06,719 --> 00:57:08,760 so you don't have as much amps in the conductor because higher heat less amps. 723 00:57:09,079 --> 00:57:13,119 Well, you could discount that and throw it away if it wasn't more 724 00:57:13,159 --> 00:57:15,920 than ten foot ten percent of the overall run. Well, that doesn't apply 725 00:57:16,000 --> 00:57:21,440 to non metallic sheet cable. It can be it can be a lifesaver for 726 00:57:21,559 --> 00:57:24,679 race ways, it can be a lifesaver for certain applications, but for NM 727 00:57:24,760 --> 00:57:28,719 cable, it's it's not going to benefit you. So that's what we got 728 00:57:28,800 --> 00:57:34,559 that added in there. And so so it's important that you do take some 729 00:57:34,719 --> 00:57:37,599 time, especially if you're a residential person, that you actually do spend some 730 00:57:37,760 --> 00:57:42,440 time in article three thirty four and look at the ampacities because if you have 731 00:57:42,960 --> 00:57:46,000 more than two M cables, they contain two or more current carent conductors. 732 00:57:46,039 --> 00:57:50,400 In any fourteen two is going to have two current carent conductors. So I 733 00:57:50,480 --> 00:57:53,480 am not aware of any non metallic sheet cable it's not gonna have at least 734 00:57:53,519 --> 00:57:59,079 two current carent conductors in it. Okay, at least two. I'm just 735 00:57:59,199 --> 00:58:01,119 not a I would know. I wouldn't know when you would have that application. 736 00:58:01,480 --> 00:58:05,320 The black and white they're always the white's going to carry the same amount 737 00:58:05,320 --> 00:58:10,000 of current as the black, so obviously it's current carrying, right. So 738 00:58:10,920 --> 00:58:16,079 where there's more than two so three n M cables that contain two or more 739 00:58:16,119 --> 00:58:23,559 current conductors are installed without maintaining spacing between them. Between the cables through the 740 00:58:23,760 --> 00:58:28,400 same opening in wood, like maybe the top of a panel where you're going 741 00:58:28,440 --> 00:58:32,960 through the top plate or whatnot, that is to be sealed with thermal insulation, 742 00:58:34,400 --> 00:58:37,920 calk, ceiling foam, you know, filling that gap, and a 743 00:58:38,000 --> 00:58:42,679 lot of times we just would put the pink insulation in there to seal it 744 00:58:42,960 --> 00:58:45,559 those type of things, And then later I started using the great stuff pro 745 00:58:45,800 --> 00:58:50,760 the orange because you also have to maintain the rating of that assembly. Okay, 746 00:58:51,039 --> 00:58:54,280 I think three twenty two and all that kind of good STUFFE. But 747 00:58:54,400 --> 00:58:59,519 if you're going to do that and you've got three or more non meatology cables 748 00:58:59,519 --> 00:59:05,639 going through that same board hole, then you're going to have to apply the 749 00:59:05,719 --> 00:59:14,000 adjustments in three ten fifteen C one. And this is where that dash B 750 00:59:14,239 --> 00:59:21,119 might save your ass. I'm just saying. Okay, so keeping that in 751 00:59:21,199 --> 00:59:23,199 mind, fourteen twelve tens, you're pretty much gonna be okay, as long 752 00:59:23,239 --> 00:59:28,440 as you don't exceed nine current caring conductors. Now, the second one, 753 00:59:29,039 --> 00:59:30,400 okay, that was the that was through holes, right, that was the 754 00:59:30,679 --> 00:59:35,960 wood framing members. Notice that only talks about wood framing members. Okay, 755 00:59:37,199 --> 00:59:44,880 not mettle framing members, the wood framing members. Ironically enough, the next 756 00:59:44,960 --> 00:59:49,599 would be where more than two, so three or more NIM cables with two 757 00:59:49,639 --> 00:59:52,880 or more current carent conductors. So pretty much any NM cable are installed in 758 00:59:53,039 --> 01:00:02,599 contact with thermal insulation without maintaining spacing between the cable. So at any point 759 01:00:04,320 --> 01:00:09,800 they're touching and they're in contact with thermal insulation, then you're gonna have to 760 01:00:09,840 --> 01:00:13,239 do the exact same thing, and you're gonna have to potentially, if you 761 01:00:13,360 --> 01:00:16,199 have four or more current Carrent conductors, then you're going to have to do 762 01:00:16,679 --> 01:00:24,280 some type of adjustment. Again, the beautiful thing that people don't think about 763 01:00:25,400 --> 01:00:30,360 is you can use the ninety because of the dash B to do your adjustment 764 01:00:30,440 --> 01:00:34,719 and corrected purposes. And you're just lucky enough to be in a world where 765 01:00:35,280 --> 01:00:37,480 as long as you don't have more than nine current Carrent conductors and you're dealing 766 01:00:37,519 --> 01:00:39,639 with twelve, fourteen, ten, let's say then you're not going to have 767 01:00:39,719 --> 01:00:45,360 to do anything, but you at least should know that that's a benefit. 768 01:00:45,800 --> 01:00:51,199 That's why the dash B is so important. It's those little nuances that separate 769 01:00:51,320 --> 01:00:54,960 you from everybody else as a contractor, right, that little extra level of 770 01:00:55,039 --> 01:00:59,679 knowledge that you have that other people don't have. Now, lastly, you 771 01:00:59,760 --> 01:01:01,239 know, I'll just lastly end up on this. If you ever want to 772 01:01:01,320 --> 01:01:06,199 know how NM cable is constructed, go to part three of article three thirty 773 01:01:06,199 --> 01:01:09,719 four. You can see the minimum sizes. It'll become very evident why you 774 01:01:09,760 --> 01:01:14,599 wouldn't use it as service equipment obviously, I mean service entrance cables or anything 775 01:01:14,639 --> 01:01:19,159 like that comes pretty evident. It tells you that the equipment grounds could be 776 01:01:19,199 --> 01:01:22,360 insulated, cover or bear. Most manufacturers and non metallity cable do bear. 777 01:01:23,000 --> 01:01:27,880 It does not mean they couldn't insulate it if they want it, but most 778 01:01:27,880 --> 01:01:31,840 of the time it's bear. And then also in three thirty four, Dot 779 01:01:31,920 --> 01:01:37,840 one twelve is where you get the insulation and it reminds you that it's ninety 780 01:01:37,880 --> 01:01:43,840 degrees c and then there's an informational note that kind of says the dash B 781 01:01:44,960 --> 01:01:49,159 meets this requirement and so that's what the dash B is all about, and 782 01:01:49,239 --> 01:01:51,639 so I kind of gave you the history on that, but that's you go 783 01:01:51,760 --> 01:01:54,360 look at three thirty four dot one twelve and you'll kind of you'll kind of 784 01:01:54,400 --> 01:01:58,800 see that. All right, Okay, guys, I don't know how much 785 01:01:58,840 --> 01:02:00,800 more. I'm the only guy in the world that can do an hour on 786 01:02:00,920 --> 01:02:02,239 no metallic sheet cable. If I board the shit out of you, I'm 787 01:02:02,320 --> 01:02:07,480 sorry. This is my world, You're just living in it. So I'm 788 01:02:07,519 --> 01:02:10,400 gonna do as I want, and hopefully that I answered your question. Give 789 01:02:10,400 --> 01:02:15,880 you a little more insight about non metallic sheet cable. If you liked episodes 790 01:02:15,960 --> 01:02:20,239 like this where I go kind of a little more in depth on the different 791 01:02:20,280 --> 01:02:23,440 wire methods and different things and give you some of my insight and things like 792 01:02:23,599 --> 01:02:28,679 that, by all means, please let us know, give us a thumbs 793 01:02:28,719 --> 01:02:32,480 up, share it. Oh oh wait a minute, I do have one 794 01:02:32,519 --> 01:02:37,079 other thing that I do have to share about no metallic sheet cable that I 795 01:02:37,239 --> 01:02:42,280 get all the time. I get this all the time. Can you strip 796 01:02:42,559 --> 01:02:46,239 the individual conductors out of a non metallic sheet cable and use them in another 797 01:02:46,320 --> 01:02:50,840 race way or some other application like liquid twite, liquid tight did I say, 798 01:02:50,920 --> 01:02:54,679 liquid twite, liquid tight, Can I do that? And the answer 799 01:02:54,760 --> 01:03:00,159 to that is absolutely not. Most of the conductors inside I would venture to 800 01:03:00,199 --> 01:03:05,559 say all manufacturers the conductors that are inside of no machine nomatology cable are not 801 01:03:05,760 --> 01:03:09,519 marked one because they're not required to be okay by their standard. That's why 802 01:03:09,599 --> 01:03:14,400 the markings on the sheathing, because it's supposed to be used as a complete 803 01:03:14,480 --> 01:03:21,119 cable assembly. Now, if there were markings on the conductor's insulation or whatever 804 01:03:21,239 --> 01:03:25,239 inside of it, then you could do that, but they're not typically, 805 01:03:25,400 --> 01:03:30,159 so you have to use it as it is, okay, So you can't 806 01:03:30,199 --> 01:03:34,239 strip it out. The next question people ask, can I install it in 807 01:03:34,360 --> 01:03:37,960 liquid tide or whatever outside? Absolutely not. Inside of a raceway is still 808 01:03:38,000 --> 01:03:42,079 a wet location. It can only be using a dry location, So absolutely 809 01:03:42,199 --> 01:03:49,159 not. You can't do that. Let's see, there was one more question, 810 01:03:49,800 --> 01:03:54,239 and now I'm drawing a brain fart that people ask. I'm trying to 811 01:03:54,280 --> 01:03:58,519 remember what it is so I can share it with you, because I wanted 812 01:03:58,519 --> 01:04:00,719 to end on all these little tidbits. Oh yeah, I remember, I 813 01:04:00,840 --> 01:04:05,519 remember. Now, Okay, So when you're doing an installation of non metallic 814 01:04:05,599 --> 01:04:13,639 sheet cable and you accidentally tear the jacket. Remember the jacket brings no insulating 815 01:04:13,719 --> 01:04:18,239 value, it's just a protective sheathing. However, it is damaged, so 816 01:04:18,519 --> 01:04:24,800 you have to repair it with something that obviously the HJ is gonna feel adequated 817 01:04:24,880 --> 01:04:28,760 with. If you just rip it and it comes up, but you can 818 01:04:28,840 --> 01:04:34,440 lay it back down, then I would say electricians tape. You elisted electricians 819 01:04:34,480 --> 01:04:38,239 tape, not the kind you buy it. As much as I love Harbor 820 01:04:38,320 --> 01:04:42,400 Freight, I don't ever buy their electrical tape. It's typically usually not you 821 01:04:42,559 --> 01:04:45,400 elisted that. I might be wrong, but I don't ever check, even 822 01:04:45,440 --> 01:04:48,239 though you can buy a big log of it for hardly nothing. I always 823 01:04:48,280 --> 01:04:51,440 go with the nice tape, whether it's three M or whatnot. It seems 824 01:04:51,440 --> 01:04:59,519 to be a little thicker, then you can repair the sheathing. Now, 825 01:04:59,559 --> 01:05:03,679 if it's wholly removed and those conductors are exposed, then I would recommend that 826 01:05:03,719 --> 01:05:08,920 you have to go with a cable repair tape. Three M makes a great 827 01:05:09,000 --> 01:05:14,280 cable repair tape, and you can replace the sheathing. What you can't do 828 01:05:15,920 --> 01:05:19,559 is replace insulation. Now I get it. You're in the field, you're 829 01:05:19,559 --> 01:05:24,320 working, you've damaged something, you've stripped off the insulation, you've damaged it 830 01:05:24,440 --> 01:05:27,920 and now copper is showing. My advice to you is just replaced that piece. 831 01:05:28,719 --> 01:05:31,400 Just replace it. I know the price of non metallity cable has gone 832 01:05:31,480 --> 01:05:35,400 up in the industry, but is it really worth it. Just replace it. 833 01:05:36,039 --> 01:05:39,639 Really, it might be a twenty foot run, ten foot run, 834 01:05:39,679 --> 01:05:42,840 five foot run. Just cut it, just replace it. I'm just giving 835 01:05:42,880 --> 01:05:50,800 you my advice because if something ever did happen then and they can find it 836 01:05:51,039 --> 01:05:56,559 and follow it back. And trust me, if you've removed sheathing and insulation 837 01:05:56,719 --> 01:06:00,119 and when it burns up and things melt away, and if for evaluation, 838 01:06:01,079 --> 01:06:04,119 we will be able to tell whether or not it was damaged prior. I 839 01:06:04,239 --> 01:06:10,840 know you find that hard to believe, but it will. The discoloration on 840 01:06:10,920 --> 01:06:15,480 the copper is totally different if it had to if it was insulation under insulation, 841 01:06:15,960 --> 01:06:17,679 or it was bare when it was exposed. And I'm not going to 842 01:06:17,719 --> 01:06:21,199 give you all the little nuances, but you don't want to be in the 843 01:06:21,320 --> 01:06:26,199 in that end of an issue. And if it can happen, it can 844 01:06:26,280 --> 01:06:30,079 happen. Yeah it is. You know, never say never in this industry. 845 01:06:30,480 --> 01:06:34,079 Okay, so remove it, replace it. But if it's just the 846 01:06:34,199 --> 01:06:39,559 sheathing. Evaluate it. You know, if you want to contact the manufacturer, 847 01:06:39,559 --> 01:06:43,079 they'll usually tell you that you can use electrical tape. If you haven't 848 01:06:43,119 --> 01:06:45,480 lost any of the sheathing, it's just cut or nicked, it's fine. 849 01:06:47,360 --> 01:06:54,519 Electrical tape should be fine. But if there's actually removal of jacket, then 850 01:06:55,280 --> 01:07:00,480 we recommend a repair tape. It might not look that pretty, but it's 851 01:07:00,480 --> 01:07:03,800 going to maintain the integrity, so kind of keep that in mind. So 852 01:07:03,880 --> 01:07:06,519 that's just some little tips I wanted to give you as an a parting thing 853 01:07:06,559 --> 01:07:10,159 about non metallic sheet cable. I'm always here to answer your questions. Do 854 01:07:10,239 --> 01:07:12,159 me a favor. If you've got something you want me to talk about, 855 01:07:12,480 --> 01:07:15,840 just go to Paul Abernathy dot com. Submitted through that portal. Don't email 856 01:07:15,920 --> 01:07:20,239 me. Use the portal and for you select few that have listened this long 857 01:07:21,440 --> 01:07:27,159 use my twenty five dollars off to five o FF. Go to fast trastube 858 01:07:27,199 --> 01:07:30,320 dot com. You'll get twenty five dollars off. You can get annual membership 859 01:07:30,400 --> 01:07:32,800 for one hundred bucks. I promise you you'll get more than your money's worth 860 01:07:32,840 --> 01:07:36,679 of value out of this new platform for the videos and things that are going 861 01:07:36,719 --> 01:07:40,400 to be up there, and it's going to be growing and growing and growing. 862 01:07:40,519 --> 01:07:45,400 This is a multi year project to create the best repository of videos out 863 01:07:45,440 --> 01:07:50,400 there that have been kind of filtered down for reliable content, get rid of 864 01:07:50,440 --> 01:07:57,239 all the bs, and it's open to all types of educators. Everybody's welcome. 865 01:07:57,599 --> 01:08:02,000 So that's it until next time. Stay safe, God bless and uh, 866 01:08:02,360 --> 01:08:30,600 you know, get out there and uh and make some money peace as as ask