jmd445
Senior Member
- Location
- Hamilton Twp., NJ
Is there a 'norm' to wiring a building to the respect of rotation.
When the utility brings in the high tension feeders (34.5 kv in this case) labeled Bk-Red-Blue and every device down stream is labeled L1-L2-L3 / X1-X2-X3, etc. An we correctly follow L1 to A, L2 to B, L3 to C and so on. Would the rotation stay the same through out the facility?
Also, are the phases A-B-C (B-O-Y) are the normally CW or CCW rotation.
PS. If I were to rent a generator (I am, I need to take the existing out of service for repairs), is there a standard that phases A-B-C on the existing Cat genset would be the same rotation as phases A-B-C on another.
A confusing multiple level question. I hope I made it clear enough.
Jim
When the utility brings in the high tension feeders (34.5 kv in this case) labeled Bk-Red-Blue and every device down stream is labeled L1-L2-L3 / X1-X2-X3, etc. An we correctly follow L1 to A, L2 to B, L3 to C and so on. Would the rotation stay the same through out the facility?
Also, are the phases A-B-C (B-O-Y) are the normally CW or CCW rotation.
PS. If I were to rent a generator (I am, I need to take the existing out of service for repairs), is there a standard that phases A-B-C on the existing Cat genset would be the same rotation as phases A-B-C on another.
A confusing multiple level question. I hope I made it clear enough.
Jim