maintenance man
Member
- Location
- paoli, pa
There are two mcc's with an opened tie breaker between them, each mcc being feed by a seperate cb from the main switchgear. The mcc's each have a main cb. One mcc is listed at a 3 and the other is listed as a 1 after an arc flash study. Should for any reason the tie is used how would the mcc be rated 3 or 1 ? I thought the study used the worse case possible which would have been a 3 for both mcc. Should each mcc have its own arc flash level label before the tie is used ? Does the tie ever have a label off its own ?
The mcc's are 480volt and 400amps each.
The mcc's are 480volt and 400amps each.