Re: Circuit Breakers/Duplex Outles
I beg to differ with Vern. Unless there's been a recent change to the code, it is permissible to use 15A receptacles on a 20A circuit in a dwelling unit. Commercial might be a different case. They are rated 15A only for the face outlets but they are rated 20A feed-through.
I don't know the specific code reference that allows this, but it is acceptable. My own kitchen, wired by professional electricians and signed off by a state electrical inspector in 2003, is wired just this way.
There's certainly no problem using 20A receptacles on a 20A circuit, though you'll probably never have a 20A plug to put in them. 15A plugs work in them just fine.
I'm guessing the justification is that no appliance with that style of plug draws over 15 amps, and anything requiring more has a 20A plug which won't fit in a 15A outlet. That's why fire marshals will write you up for using one of those outlet splitters unless it has a built-in breaker.
(Let's not argue the series/parallel thing. It means something very specific to an electrical engineer, but to everyone else it means different things.)
The "Senior Member" designation under my name doesn't mean I know a lot, it just means I talk a lot.I've been a DIYer since I was 12 (thanks, Dad!). I have read several books on various home improvement topics. I do not have any current code books I can refer to. I was an apprentice plumber for two years.