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Information by Electrical Professionals for Electrical Professionals

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Title of Information by Electrical Professionals for Electrical Professionals: "Information by Electrical Professionals for Electrical Professionals"

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Is it legal to put a bare EGC in an EMT conduit? Say If I stripped SER cable... I failed an inspection years ago for a bare grounding conductor in a conduit, but it might have been because it was a bare GEC in a conduit with feeders. Anyone know?


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Lost 120Vac (15A brK Electrical panel) for my IOC cabinet #1. 24Vdc UPS. 120Vac power in through a LAS(surge suppressor) 15A(internal fuse). Lost the IOC as the UPS drained out(2hrs), 15A breaker(panel) did not trip. Had 120V in for the LAS unit but no 120V out. Quick fix was pigtailed a 120V to my 24Vdc power supply to power the IOC get plc and scada back up and running for Ope...


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Our Washington codes (WAC) just adopted some very intersting changes with regard to NM-B cable ampacity: 080 Ampacity of Types NM and NMC cable carrying suffix letter "-B". (8)(a) The ampacity of Types NM and NMC cable carrying suffix letter "-B" shall be determined in accordance with NEC 310.14. (b) The ampacity of #10 AWG and smaller ungrounded conductors shall not exceed t...


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Hey I been reading few different things about this shared neutral and am a little confused. Currently being ran from panel is a 12/3 wire going to a box. In that box is the 12/3 Home run wire and 2-12/2 wires. the neutrals are all together. With a tailed neutral to a gfci outlet in that box The black off 12/3 goes to the gfci line side with that tailed neutral . in the load ou...


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So I have a new facility for R&D research that needs an arc flash calculation. The off-site utility provider has only provided the max fault current. From my understanding of IEEE 1584, an arc flash calculation needs to be performed using a max and min fault current. The on-site utility provider I have provides both the max and min fault currents at the 13.kV levels to perfo...


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