paul renshaw
Senior Member
- Location
- Cordova, Maryland
When I took the cover off of a xfmr I was asked to look at I noticed the following. It is 37.5 KVA 1ph 480v pri 120/240 sec Hv amps 78 LV amps 156 amps. The feeder is on a 100 amp breaker with #2 conductors and the secondary is also #2 wire, and the main breaker in the secondary panel is 200 amps. Is this compliant? It seems to me that #2 is too small for the secondary amps capacity of the xfmr. There also was no GEC run to it either. There also was a piece of # 8 run through EMT with a romex connector on each end as the ground lead for the telephone system. Does that ground wire need to be bonded on both ends of the raceway like a GEC in a metal raceway? They also had four conductors under one single barrel lug, which I am sure violates the listing of the lug.
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