Question: What is the maximum ampacity of a 3-phase feeder consisting of 3 - 4/0 and 1 – No. 4 GND in a 2-in. PVC conduit? The feeder is installed underground to a remote building. All conductors are ...

How do you find the ampacity requirements that apply to your facility's power distribution wiring, and which of the many ampacity tables in Art. 310 is the right one? To answer the first question, we ...

My first job in the trades was as an electrician’s apprentice doing tasks, such as pulling wire, building light fixtures, and moving scaffolding in grocery store renovations. I moved into HVACR and ...