osaengineers
Member
A contractor has a 1600A, 277V/480V, 3 phase , 4 wire service.  I am putting a ground fault protection as required.  Is ground fault indication (light, alarm, etc.) also required to be provided?  If so, when in the code is it listed?
Thx
	
		
			
		
		
	
				
			Thx
 
				