1962 service question

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travish

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Location
Central North Carolina
Occupation
Electrician
The company that I work for just bought a building a few miles from our current location. It was an old textile plant that was supposedly built in 1962. Looks like one of the main panels has some number of 1600 amp switches in it (breakers i guess). I am told by one of the maint guys that used to work there that these feed 4 - 400 amp panels each. So the conductors going to the 400 amp panels were protected by a 1600 amp breaker. The building has not been used in the last 10 - 15 years so all of the copper has been stolen out of it so I can't tell if that is the way it was wired or not for sure, but I have no reason to doubt the guy who told me this.

My question is back in 62, was it ok to run the 400 amp feeder wires unprotected like that?
 
augie47

augie47

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Staff member
Location
Tennessee
Occupation
State Electrical Inspector (Retired)
The textile mills I have worked in were big on tap rules and not necessarily real accurate on the measurements :D, but I agree with Dennis.
 
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