C ckinney02 Member Mar 23, 2012 #1 Does 4160V systems require service entrance rated and marked equipment? NEC 230.66 shows that it should be marked but I don't know if the intention of the NEC was for this section to be for 600V or less. NEC 490 doesn't require any markings.
Does 4160V systems require service entrance rated and marked equipment? NEC 230.66 shows that it should be marked but I don't know if the intention of the NEC was for this section to be for 600V or less. NEC 490 doesn't require any markings.
roger Moderator Staff member Location Fl Occupation Retired Electrician Mar 23, 2012 #2 Read 230.200 Roger
C ckinney02 Member Mar 23, 2012 #3 I must not have previously read 230.66 clearly, it specifically reads that it is for 600V and less.
