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LazMan
Premium
join:2003-03-26
canada
reply to Jack_in_VA

Re: RANT - 750MCM cable sucks

said by Jack_in_VA:

Try pulling in conduit.

Could be worse - could try and pull it out of this pipe... Well, the one wasn't bad; the other, not so much.




(Ground fault incident a few years ago - thousand amps or so hard to ground, and overcurrent protection didn't operate in a timely fashion... The 350 in the pipe was pretty much welded in place - we cut the conduit and cable into 3' chunks and removed that way)


mackey
Premium
join:2007-08-20
kudos:12

I remember that thread. Did they ever find out why neither breaker tripped?

/M



Jack_in_VA
Premium
join:2007-11-26
North, VA
kudos:1
reply to LazMan

We ran galvanized rigid everywhere. The 6" was 182#/10 ft.

In fact both factories I worked in didn't even stock EMT. Had plenty of rigid, pvc, pvc coated rigid, stainless, rigid aluminum.



LazMan
Premium
join:2003-03-26
canada
reply to mackey

said by mackey:

I remember that thread. Did they ever find out why neither breaker tripped?

/M

If the the engineers and insurance people did; they didn't share with those of us in the field...

We replaced the panelboard and ATS anyways - but never got a definitive cause why the breakers didn't open.