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line=primary, load=secondary #8229
03/13/02 07:12 AM
03/13/02 07:12 AM
R
Redsy  Offline OP
Member
Joined: Mar 2001
Posts: 2,056
Bucks County PA
I heard someone refer to the line and load terminals of a CB as primary side and secondary side?
Is this common terminology?

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Re: line=primary, load=secondary #8230
03/13/02 08:04 AM
03/13/02 08:04 AM
W
WARREN1  Offline
Member
Joined: May 2001
Posts: 176
Greenville, SC, USA
Redsy
Don't know if it is common or not, but I have used that terminology when discussing lines and loads with Lead Engineers and some contractors.

Re: line=primary, load=secondary #8231
03/13/02 11:41 AM
03/13/02 11:41 AM
Joe Tedesco  Offline
Member
Joined: Oct 2000
Posts: 2,749
Boston, Massachusetts USA
Redsy:

The UL Directory "White Book" includes the following statement under the heading of "LINE - LOAD CONNECTIONS"

"Line and load markings on a circuit breaker are intended to limit connections thereto as marked."

Watch out four for backfed installations, if you need more information from the "White Book" let me know.

[This message has been edited by Joe Tedesco (edited 03-13-2002).]


Joe Tedesco, NEC Consultant
Re: line=primary, load=secondary #8232
03/14/02 09:59 AM
03/14/02 09:59 AM
T
The Watt Doctor  Offline
Member
Joined: Dec 2001
Posts: 435
Mont Belvieu, TX
Never heard of it relative to breakers. Always hear it relative to transformers.

Regards,
Doc


The Watt Doctor
Altura Cogen
Channelview, TX

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