Seriously, if you have a 50+ yr. old residential structure, nicely outfitted with EMT indoors (and RIGID outdoors) but good safe GND depends on solid connections all the way back to the main panel, how do you VERIFY that your EMT can actually carry 20AMPS in a worst-case ground fault?
EMT connectors have always seemed a bit lame to me, in terms of CONTACT AREA, and there's all those long runs, hidden behind OLD plaster walls, subjected to who-knows-what kinds of abuse, errant nails, improper anchors, ig-nernt/expeditious "modifications", etc...
So... do you (breaker OFF) disconnect a receptacle neutral at the farthest extent of a conduit run, wire the neutral screw directly to the metal box w/ AWG12 copper, and plug in a 20A angle grinder?... then, while it's running, check voltage drop back at the panel? =:O
Or do you just ASSume it's lame, and pull a new green/bare GND wire?
... what say ye RKIs???
hexus
brickeyee
Related Professionals
Dedham Electricians · McPherson General Contractors · Park Forest General Contractors · Poquoson General Contractors · Saint George General Contractors · Wheeling General Contractors · Avocado Heights General Contractors · Joppatowne General Contractors · Glen Avon Solar Energy Systems · Bellflower Solar Energy Systems · Richfield Solar Energy Systems · Hollywood Home Automation & Home Media · New York City Home Automation & Home Media · Saint Petersburg Home Automation & Home Media · Tarpon Springs Home Automation & Home MediafixizinOriginal Author
fixizinOriginal Author
wired_lain
billhart
brickeyee
fotostat
fixizinOriginal Author