I've seen a few similar questions but each has a small difference that makes the answers there irrelevant for me.
I just finished a kitchen remodel, including redoing much of the kitchen electrical work. An electrician did most of the wiring in the walls but I'm finishing the "trim work" (receptacles, switches etc..). I'm trying to verify that I have things wired correctly before I request inspection (in WA state, following 2020 NEC).
What I have
- A MWBC, with a 15A two-pole breaker, covering the two circuits for my dishwasher and garbage disposal (respectively). The breaker is a plain one with no AFCI or GFCI.
- A "plain" (not GFCI/AFCI/etc..) duplex receptacle under the kitchen sink, wired as a split-tab receptacle (metal tab broken off to separate the dishwasher and disposal circuits).
- An extra 14/2 cable connecting the "hot" wire of the disposal circuit to a switch next to the kitchen sink.
- Dishwasher and disposal are both connected via a power cable (i.e. not hard-wired).
- The manuals for both appliances say nothing about GFCI or AFCI. They just say to do whatever the local regulations require.
As I understand it:
- New dishwasher outlets need to be both GFCI and AFCI protected.
- New disposal outlets need to be AFCI protected (GFCI is optional here).
Right now neither circuit has GFCI or AFCI.
The simplest solution for me would have been to grab a "Dual Function" breaker like this one instead of my current two-pole breaker. Unfortunately, I don't think Square D Homeline makes any two-pole 15A "Dual Function" breakers.
For $120-200 I can get either GFCI or AFCI at the breaker, but that leaves me without the other. And I don't think I can use a GFCI receptacle either since I need to wire it as a split-tab receptacle.
- The wiring for this circuit wasn't touched as part of my remodel, aside from just replacing the plain receptacle with a newer white one. All the wiring in the wall and panel should be the same as it was before. But all the other circuits in the kitchen were replaced.
- The house was originally built in 1993, so whatever code was in place at the time applied.
- I have a 200A Square D Homeline 40/80 space/circuit panel.
- I believe WA state is on 2020 NEC, and I can't find any specific local laws that overrule these parts.
- I've called my inspection office and they told me to just read the laws online.
- Do I even need to bring these circuits into compliance, given that they were like this before and the wiring in the wall and panel hasn't changed?
- If yes, what are my options here? I'm willing to consider different options at either end, but I don't want to do anything in the wall or run a different circuit since we've already closed up everything.