Jun 1, 2011 · I would suggest reading article 501 in the NEC first. Then listen to the dozens of opinions your about to receive. I hope your a real electrician to be wiring class 1 div 1 or 2 …

Sep 17, 2010 · Welders Good discussion, but like any standard, NEC is a minimum and there has to be context. Art 630 works great in an industrial setting and you have qualified people …

Jan 7, 2010 · I was told that the nec code does not allow conductors smaller than 4 awg to be phased with tape. Does anyone know where this would be found in the nec? Is there anything …

Apr 1, 2014 · 80% rule applies to continious loads such as motors, lighting or any load expected to be on 3 hours or more. A breaker is rated for 100% of the noncontinious load which may …

Oct 29, 2014 · I have a question. According the to NEC, are all exterior doors required to have an exterior light mounted near it? What about a storage room under a concrete porch, is that door …

Nov 8, 2022 · Hi all, I just want to find out when circuits of over 250 volts to ground DONT need ground busing connectors. I know Article 250.97 gives the following exceptions (a) Threadless …

Jan 30, 2014 · Following the NEC definition, this isn't accurate. A plenum is not just any open space in which air may flow, it is a space specifically dedicated to carrying environmental air: …

Mar 1, 2022 · I just checked the 2020 NEC and it only mentions runs of 6ft and nothing on a 3' rule or smaller could anyone refrence an article , by the way the area of installation is class 1 …

Oct 16, 2023 · For a given column of Table 300.5 ("minimum cover requirements") there is a potential overlap of the various rows. The one that concerns me at present is Column 2 (IMC …

Dec 1, 2012 · Dont have a code book handy, but this one has been bugging me... Was in a building this week where all the transformers had been anchored straight to the floor, this …