NEC Art 310.15(A)(2) - 0 to 2000V Cable Ampacity
NEC Art 310.15(A)(2) - 0 to 2000V Cable Ampacity
(OP)
Does anyone know the origin of NEC Art 310.15(A)(2) (05 addition)? i.e. what was the reason behind creating this article.
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NEC Art 310.15(A)(2) - 0 to 2000V Cable Ampacity
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RE: NEC Art 310.15(A)(2) - 0 to 2000V Cable Ampacity
RE: NEC Art 310.15(A)(2) - 0 to 2000V Cable Ampacity
RE: NEC Art 310.15(A)(2) - 0 to 2000V Cable Ampacity
RE: NEC Art 310.15(A)(2) - 0 to 2000V Cable Ampacity
If you have an installation that is required to meet the NEC, then it is really not a good idea to start trying to second-guess why it says what it does. You have to meet the requirement whether you like it or not and whether or not it makes any sense. If you're trying to win an argument with an inspector, you won't.
If you really must know the origin and history, you can call the NFPA and find out what year it was added. The process for making changes in the Code is pretty open and the submitted requests for changes along with the Panel's decision and discussions are probably available from NFPA.
My guess is that this was added to make legal what any common sense interpretation would be - you need to use the worst-case. Unfortunately, there are a lot of people who make a living out of finding the loopholes and gaps in the NEC and then underbid based on cutting every corner that they know about. Pretty soon, everyone has to cut the same corners to get any work, and the NEC eventually gets "improved".
RE: NEC Art 310.15(A)(2) - 0 to 2000V Cable Ampacity
RE: NEC Art 310.15(A)(2) - 0 to 2000V Cable Ampacity
RE: NEC Art 310.15(A)(2) - 0 to 2000V Cable Ampacity
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I don't know about the availability of older ones. They are also free for that asking when they are first published.
Don