Hello,
I have an engineer giving me grief, so I decided to redraw the design and ask the people here. I'm using 2017 NEC.
Picture a large building with 2 services at opposite ends of the building. I do realize that the services are not grouped at the same location, but there will be permanent...
Are there any pitfalls that I need to be aware of? The MTS is SUSE rated, will use class R fuses, will have a neutral bar-terminal. 120/208 single phase.
I am assuming that (in general) the power companies will allow the configuration...??
any thoughts?
Hello I have a question:
Assume solidly grounded neutral system. Code is 2017 NEC 250.184(A)(1). Assume feeder to downstream equipment requires a neutral and a ground.
Exception number 1 states that bare conductor can be used for the neutral for direct-buried portions of feeders. But...
Since the GFCI does not use the equipment grounding conductor in the sensing circuit, GFCIs can protect non-grounding circuits and can replace two-wire (ungrounded) receptacles. However, my specific question deals with an isolation transformer that is protected (receiving power from) a GFCI...
I'm looking at a set of stamped plans that are showing me five 84-circuit electrical panels. Will a manufacturer even make an 84-circuit panel, does anyone know?
Hello,
I'm not a PE - I'm involved in the electrical trade. But I'm hoping that a civil engineer can point me in the right direction. There is a code in the National Electrical Code [2014 NEC Article 250.53(A)(1)] that references "permanent moisture level." It reads like this,
"If...
