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3 phase numbering of conductors #87200
01/29/04 06:31 PM
01/29/04 06:31 PM
E
Edward  Offline OP
Member
Joined: Dec 2002
Posts: 308
California
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
Re: 3 phase numbering of conductors #87201
01/29/04 06:34 PM
01/29/04 06:34 PM
R
Ryan_J  Offline
Moderator
Joined: Aug 2003
Posts: 1,374
West Jordan, Utah, USA
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
Re: 3 phase numbering of conductors #87202
01/30/04 10:35 AM
01/30/04 10:35 AM
E
earlydean  Offline
Member
Joined: Dec 2003
Posts: 751
Griswold, CT, USA
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
Re: 3 phase numbering of conductors #87203
01/30/04 12:11 PM
01/30/04 12:11 PM
E
Edward  Offline OP
Member
Joined: Dec 2002
Posts: 308
California
Got it. Great.

Thank you.


Thanks
Edward
Re: 3 phase numbering of conductors #87204
01/30/04 01:48 PM
01/30/04 01:48 PM
R
Ryan_J  Offline
Moderator
Joined: Aug 2003
Posts: 1,374
West Jordan, Utah, USA
You are very welcome [Linked Image]


Ryan Jackson,
Salt Lake City

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