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#98507 12/21/04 11:11 PM
Joined: Dec 2002
Posts: 18
H
Member
Can someone explain to me the change to 210.12 Arc Fault Circuit-Interrupter Protection, "require that all dwelling unit bedroom branch circuit AFCI protection devices must be listed as a "combination Type AFCI", effective Jan. 1 2008." First of all I have never heard of the "combination type AFCI, and secondly the way I understand it is all 120V branch circuits being supplying 15 or 20A outlets in bedrooms must be AFCI protected. Does that include the lighting outlets, fan outlets, and recepticle outlets? Need clarification please..

2017 / 2014 NEC & Related Books and Study Guides
#98508 12/21/04 11:32 PM
Joined: Aug 2003
Posts: 1,374
R
Moderator
The two biggest differences between the AFCI's is that the combination type is supposed to trip at 5 miliamps of current as opposed to 75, and the combination type is also supposed to detect arc faults after the outlet, such as cord and plug connected equipment.

As for your other questions, yes, all outlets in the bedroom (120 volt, 15/20 amp) are to be protected. This includes receptacles, light fixtures, smoke detectors, etc...


Ryan Jackson,
Salt Lake City
#98509 12/22/04 12:05 AM
Joined: Nov 2000
Posts: 2,148
R
Member
Ryan,
I believe that it is 5 amps, not 5mA for the combination AFCI.
Don


Don(resqcapt19)
#98510 12/22/04 12:12 AM
Joined: Dec 2002
Posts: 18
H
Member
If it is all outlets does that mean the smoke detectors and ceiling fans because ceiling fans tend to trip the AFCI.

#98511 12/22/04 08:35 AM
Joined: Jan 2004
Posts: 1,507
G
Member
I was under the impression that the "combination" was for series and parallel arcs. since the current (no pun intended) ones only protect from parallel arcs.


George Little
#98512 12/22/04 10:46 AM
Joined: Aug 2003
Posts: 1,374
R
Moderator
Good catch Don, thanks. 5 amps indeed, not 5 miliamps (thank heavens).


Ryan Jackson,
Salt Lake City
#98513 12/26/04 10:40 PM
Joined: Apr 2004
Posts: 201
Member
George, you are correct. [Linked Image]

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Charlie Eldridge, Indianapolis, Utility Power Guy


Charlie Eldridge, Indianapolis Utility Power Guy

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