Art 230.95

[srmoran]

Is ground-fault protection required only in the main circuit breaker for 1000 amps and above? How about the branches with 1000amps rating. Are they also required?

 

[ryan_618]

See 215.10 and 240.13

 

[benaround]

As long as the main has GPE than downstream feeders of 1000a or more

are not required to have it.

 

[jim dungar]

Except in hospitals, which require 2 levels of GFP on normal power.