CONDUIT FILL EXAMPLES for the Modern Electrician - How Many Conductors Can I Put In...

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Published 2019-11-04
This video is packed with useful information on how to calculate examples of conduit fill using the National Electrical Code as the basis. If you've struggled understanding conduit fill, this should do the trick.

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Many electricians struggle with understanding how many conductors they're supposed to put in a raceway. If you haven't had a formal education over how to do this, or did not have a good teacher this may be something you struggle with often.

There are 4 different tables that you need to familiarize yourself with in the National Electrical Code. These are:

Chapter 9 Table 1
Chapter 9 Table 4
Chapter 9 Table 5
Annex C Table C.1

Chapter 9 Table 1 is a good place to start as the notes under the tables tell you exactly how to deal with conductors of various types and situations. In this video I go over conduit fill for different sized conductors, same sized conductors, and nipples - when dealing with THHN conductors and EMT (electrical metallic tubing).

#conduitfill #conductors #electrical
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All Comments (21)
  • @zerojdb
    I’m a Journeyman Electrician & I haven’t been in the books in over 4 years…I’m going for my Masters. Your video is the best one I saw so far!! Very well put together and I like how you show where to go. Thank you for the video It starting to come back to me:)
  • @juancaban5440
    I've been watching your videos for about 6months now and really liking them a lot, I specially love your code section. Learned a lot. Thank you.
  • This made a lot more sense seeing the highlighted sections and tabs in both your codebook and your ugly's. Im soon to be a fourth year and haven't had a full on immersion into the way to effectively tab a code book let alone an ugly's. If you have time, could you either link a previous video or potentially create something informative, using examples like the brilliant ones in this video, to illustrate where and what to highlight. The stuff we use all the time, maybe a penultimate "the final test" video, or just something to help us highlight and label our books. Did I see that you have the tables tabbed on the top edge as opposed to clumped in and lost among the other articles. That's BRILLIANT! Super helpful to see something like that, as many code tabs instruct us to put them all on the one mail edge. I love the outside the box creativity. It's inspiring.
  • @Tholmes8913
    I literally just took a test on this Monday lol It was a third year Apprentice test but they moved it to second year. I appreciate the additional clarification!
  • @michaelking42
    What a fantastic video, thank you so much! Very timely indeed as I'm running wires to my workshop about 140' away from my switchboard. Wasn't sure if I could get 4 x 4AWG wires in a 1" conduit, but yes I can.
  • @icevariable9600
    Excellent video. Highly informative. Can't praise it enough. Great job in explaining how conduit fill works. I've been dreading learning it and you made it incredibly simple. Thanks.
  • @Aepek
    Great vid....with helpful info. Liking these quick short vids touching on the “main” points of each subject etc.....& then on some you delve a little deeper👍🏻 Any new apprentice or helper I get, I tell them about your channel, & that you have some great vids etc....that they can watch & enjoy. Very useful for anyone at any stage in their carrier. Have enjoyed the “podcast” type vids w/ the different ppl you’ve “interviewed/talked with” recently. Like that can put vid on & listen while I work👍🏻 Loved the stories & life experience from the last one a lot😊 (hope keep up w/ normal vids & throw those in couple times a month). Cheers✌🏼
  • Great video Dustin! Thanks for taking time to teach us this stuff... I learn more from you then I do it trade school haha
  • @morgan79347
    I’ve watched a few of your videos & stumbled on this one. I don’t do a lot of electrical anymore but I’m building a large shed for my woodworking equipment. This conduit episode is perfect as I need to run about 100’ of 1/0 Thhn Thwn 2 for a sub panel.Also thanks for the ugly’s book have one on order. I also just subscribed as I believe you channel is awesome.
  • Great explanation, better than many teachers I know. You are a good communicator.
  • @lawmat93
    Thank you for these videos a lot of the ones getting me through the industrial side are people with accents I can’t understand outside of the states and your content is clear and you use common language again thanks man
  • @MarkytheSparky
    Awesome breakdown of information for newbs. I love the full breakdown of calculations.
  • @ghusttler
    Bro I really like your videos, Everytime I need to know something new For the new type of job I’m doing it’s everything related to low-voltage. Much of your videos always come handy to me Thank you for doing all of this and thank you for all of your time Invested here
  • @jfw851
    I've learned a great of information in this video. Keep up the good work man and thank you so much for this awesome video.
  • @MrLuanDo
    Absolutely brilliant! Thank you!
  • @shaun1258
    Love the information in here, quick and simple. Great tip on the Ugly’s