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Joined: Dec 2002
Posts: 308
E
Edward Offline OP
Member
I vaguely remember a method i was taught by my foreman on 3phase condutor numbering.

I think you took a number,divide it by three then the remainder....???

Can anybody refresh my memory?

Edward


Thanks
Edward
2017 / 2014 NEC & Related Books and Study Guides
Joined: Aug 2003
Posts: 1,374
R
Moderator
Take a number and divide it by six, the remainder (or fraction) is your phase. Example: circuit number 27.

27/6= 4 with 3 remaining. Three is phase "B"

If you have a remainder of 1 or 2, it is "A"
If you have a remainder of 3 or 4, it is "B"
If you have no remainder, or a remainder of 5, it is phase "C".


Ryan Jackson,
Salt Lake City
Joined: Dec 2003
Posts: 751
E
Member
We always went 1,3,5, etc or 2,4,6, etc on our first three fingers. The finger ended on was the phase of the wire. Higher math was not required [Linked Image]


Earl
Joined: Dec 2002
Posts: 308
E
Edward Offline OP
Member
Got it. Great.

Thank you.


Thanks
Edward
Joined: Aug 2003
Posts: 1,374
R
Moderator
You are very welcome [Linked Image]


Ryan Jackson,
Salt Lake City

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