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 and RMC …

Jan 24, 2023 · I know 334.30(B)(1) (quoted below) has been discussed here before, but I haven't seen a satisfying answer to my particular question. I recently had a discussion with an inspector about the …

Feb 11, 2022 · We recently completed wiring a renovation in a home. The designer provided an art light for the wall for the wall behind the tub. The art light is within 3 feet of the edge of the tub but is not …

Jan 9, 2025 · Does NEC allow running multiple 480V 3 Phase Power load conductors in a single conduit instead of running each 3 phase loads conductors in separate conduits?

Apr 2, 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 include outlets or …

Nov 4, 2009 · Section 334.15(C) requires NM cable in "unfinished basements" to be supported by holes in the joists or by being secured to "running boards." This for anything physically smaller than 6-2 or …

Oct 27, 2021 · Are you aware of any NEC rules against painting an automatic transfer switch for a residential generator installation? A relative had one installed this week and the wife wants the ATS …

Feb 29, 2008 · This is a new addition to the NEC for '08. When installing cable or conduit under a roof deck, it must be installed and supported 1 ½" from the decking. I just saw a perfect illustration of the …

Dec 16, 2014 · I have been looking everywhere for clarification of "within sight". So far, I think I have figured out, that its only required for equipment. The panel I...

Sep 8, 2018 · Just curious what your spacing requirements are for supporting PVC conduit.