Mar 17, 2019 · I regularly run 100-amp and 125-amp sub-panels, and sizing the aluminum feeder cable (SER) seems to be getting more complicated, and for some reason has me staring …

Jun 15, 2020 · I need to buy wire to feed a 100 amp subpanel in a detached garage, approx 100 feet away from the main panel in the (separate) house. Between the subpanel and the room …

May 22, 2020 · I ran out of space on my panel and would need add a sub panel. The main panel is 120/208 @ 200 amps. The sub panel will need to have at least 7 circuits so it will require a …

Jun 19, 2025 · A 10kA plug-in SPD can offer some protection, but it’s on the lower end—better than nothing, but not ideal for full coverage, especially in a subpanel with no main breaker. For …

Sep 22, 2016 · I can't find anywhere in the NEC that says the amperage rating for a sub-panel must meet or exceed that of the wire feeding it. By 408.36, it appears that I will be compliant …

Nov 15, 2023 · Inspector today brought up article 215.18. He actually wasn’t sure how to interpret the article and asked if I wanted to hold off on inspection because he believes the new sub …

Sep 20, 2023 · Should the grounds and neutrals be separated on this subpanel for a portable generator? It's the small panel on the right. The left sub was wired correctly with the grounds …

Dec 20, 2018 · Hi all, I am working on a price for a commercial office area, the old 3phase panel is full and I need a new subpanel for the supply of 2000sqft of office space. There is no heavy …

Jun 18, 2020 · The inspector is a dolt. You are right the neutral and ground are BONDED at the main service or SDS and THERE HAS TO BE CONTINUITY or you have an ungrounded …

Jul 18, 2020 · Grounding & Bonding of 3 Wire Fed Subpanel Auxiliary buildings should have the EGC extended from the main building. The barn panel neutral should not be bonded. It also …