Search found 16 matches
- Tue Jul 21, 2009 8:32 pm
- Forum: General Discussion
- Topic: 480 VAC 3 Phase Delta Ground Fault Lamps
- Replies: 7
- Views: 3168
Re: 480 VAC 3 Phase Delta Ground Fault Lamps
Back in the "bad ol' days", these light-based GF indication systems were commonly in use for both grounded (4-wire) and ungrounded (3-wire) 480V and 600V 3-ph systems. Thank God those days are past. Folks live longer nowadays. >Ungrounded 480V and 600V 3-ph systems are inherantly dangerous...