beanland
Senior Member
- Location
- Vancouver, WA
62.5kW PV 480Y/277V fed from 75kVA 208V-480Y/277V transformer; utility service is 208V. Transformer primary 208V OCPD is 225A, 108% of full load current. 208V 400A disco located between 225/3 breaker and transformer. 705.65(B) says that I do not need OCPD on the PV 480Y/277V side of the transformer when fed from a current limited source, PV. 450.14 says I need a transformer disco in sight, which is the 400A 208V disco on the primary. PV 480V disco located at inverter. I cannot find an NEC requirement that I must have a secondary disconnect in sight of the transformer on the 480Y/277V side. Anyone know if there is a requirement?