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Cast coil are standard transformers used indoors for traction power. We have had them for at least 15 years with no problems. Mostly German SGB or WTW. ABB makes cast coils in Virginia. Virginia Transformers makes UNICLAD pretty close to cast coil. They are sealed and generally don't give...

Twisted during the transportation or deforming because the floor may not be leveled. It is floor mounted in a room in Northern VA areas.

Zogzog: We have problems with 11 gauge cubicles twisting and the roll-in breakers don't make contact properly in the receptacles. I could send you some info to give me some ball park estimate.

Thanks for info! I know Controlled Power and have bought equipment from them before. They have never done it. Some engineer put this in our swichgear specs. I will probably stick with 11 gauge.

Do any of you folks know that any manufacturer can make metal clad 13.8kv switchgear with say 8 gauge metal instead of ANSI 37.2 required minimum 11 gauge?