| Dan Lanciani wrote:
firstname.lastname@example.org (bud--) writes:
| > | Dan Lanciani wrote:
| > | > Does something like an L14-20 outlet require AFCI protection (assuming in
| > | > an area so requiring) since it has 120V available pole to neutral?
| > |
| > | As you likely know, AFCI protection is required for 15 and 20A 120V
| > | branch circuits supplying "outlets" (receptacles, lighting, smoke
| > | detectors, ...) in specified rooms in "dwellings". Generally receptacles
| > | that are required to have GFCI protection are not required to have AFCI
| > | protection. Older houses may have kitchen appliance, laundry and
| > | unfinished basement circuits that do not stray into rooms where
| > | protection is required. And maybe bathroom circuits.
| > |
| > | The protection would be for the branch circuit (which includes the
| > | L14-20 receptacle).
| > The question is whether the branch circuit supplying the L14-20 (let's
| > assume that's all it supplies) is considered a 120V branch circuit for
| > this purpose. It's a 240V circuit, but it does have a neutral so 120V
| > is available.
| I was lazy and didn't look up the configuration - shoulda known the
| question looked too easy....
| The receptacle, for others as lazy as I am, is 120/240V, 2 hots,
| neutral, ground.
| My opinion is an inspector would not require AFCI protection.
| (If AFCI protection was required it would have to be a 2-pole AFCI
| breaker, because you can't have a common neutral otherwise.)
Which would be a problem since Cutler Hammer doesn't make a 2-pole
combo AFCI (yet?)... I wouldn't want to get into a situation where
there is no way to satisfy the code with existing equipment.