AFCI or GFCI

[overmyhead]

I would like to update the wiring on an older home-ie. new panels and new grounding type plugs. The existing wiring is two wire only, of course I will be adding a ground rod etc... but I will not be re-wiring branch circuits. I know the code allows GFI feeding 3 prong outlets with only 2 wires. But I would like to use AFCI instead to comply with NEC 2008. So the queston is should I stick with the letter of the code-GFI? Or should I follow the spirit of the code-AFCI? Or do I have to do both? Is this going to be changed withg NEC 2011 anyway?

 

[Dennis Alwon]

You probably don't have to do both but if you change to three prong receptacles then you must use GFCI, If you want to use AFCI that is okay also but GFCI is imperative.

 

[jumper]

FYI from the 2011:

210.12(B) Branch Circuit Extensions or Modifications ? Dwelling
Units. In any of the areas specified in 210.12(A), where
branch-circuit wiring is modified, replaced, or extended, the
branch circuit shall be protected by one of the following:
(1) A listed combination-type AFCI located at the origin of
the branch circuit
(2) A listed outlet branch-circuit type AFCI located at the
first receptacle outlet of the existing branch circuit

 

[al hildenbrand]

I would like to update the wiring on an older home-

If you are not changing the two wire ungrounded wiring method already in the home, then, I personally think it is a dis-service to the owner to change out all the non-grounding type receptacles for the grounding type.

Rather, determine the locations that the current owner says grounded equipment will be placed. Equipment such as window ACs, microwaves, refrigerators, cable/satellite converter boxes, etc., are required by the manufacturer (and/or Code) to be connected to the equipment grounding conductor (EGC). Add new wiring for these specific locations or modify the existing as required.

In a single family dwelling, I personally think worn two wire non-grounding type receptacles are best replaced with new non-grounding type receptacles.