NEC Article 310.6 and application with primary transfomer cabeling
NEC Article 310.6 and application with primary transfomer cabeling
(OP)
I cannot find any reference in the NEC that excludes the connection between a close coupled disconnect switch and a transfomer with primary voltage larger than 2000V. I cannot recall seeing any field installations that have shielded cable connections between the disconnect and the transformer, but I was wondering if this was spelled out in the code anywhere?






RE: NEC Article 310.6 and application with primary transfomer cabeling
RE: NEC Article 310.6 and application with primary transfomer cabeling
RE: NEC Article 310.6 and application with primary transfomer cabeling
Regardless the application, insulated conductors are typically manufactured as follow:
NON-SHIELDED:
• 2000 V for insulated single non-metallic covered cables in UG installation
• 5000 V for OH installation with separated single conductor in air.
• 5000 V for UG or OH installations with assembled conductors with a common overall jacket.
SHIELDED: Above 5000 V.
RE: NEC Article 310.6 and application with primary transfomer cabeling
RE: NEC Article 310.6 and application with primary transfomer cabeling
There are no manfactures of unsheilded cable as far as I know.
RE: NEC Article 310.6 and application with primary transfomer cabeling
http: