bre419
Member
- Location
- Semmes, Al, USA
If a less flammable or low-flammability transformer is installed indoors and it is UL or FM certified not to require fire protection, does it still require containment (NEC 450.23 (A)(2)? The transformer in question is silicone filled, 13.2kV/550-Y, 1200 KVA, 3 phase.