ECN Forum
Posted By: jbfan tighten your lugs - 03/23/06 05:31 PM
Found this on another site.
http://hvac-talk.com/vbb/showthread.php?threadid=100384
Posted By: e57 Re: tighten your lugs - 03/24/06 08:27 AM
Nice pic's!

Doubt it happened solely due to loose lugs, looks like total lack of proper OCP.

"This was hooked up to a 1200 amp 3-phase transformer, via 600 amp fuses. I believe the panel was a 250 amp panel in happier days..."

Maybe those 600A fuses were on the primary side? Or, no AIC calcs and breakers just exploded due to a simple short?
© ECN Electrical Forums