I am wiring an addition and have some NEC code questions - possibly you could help.
I have a Eat in area, then kitchen, then dining room (existing - newly wired).
I have a 20 amp circuit in the dining room with only two outlets on it - not sure how that happened but....
- Can I use this to feed the Gas Range?
- Can this circuit feed the range hood?
- Can this circuit feed the lighting in the kitchen?
- Can I use this circuit to feed the outlets in the Eat in Area
I have a circuit pulled for 3 outlets in the living room -
- Can this circuit feed outlets in the Eat in Area?
- Can this circuit feed the Kitchen lights?
I've read that the dishwasher and garabge disposal can and can not be on the same circuit.
- Which do you prefer?
- Can a seperate circuit to the garbage disposal feed the outlets in the Eat in Area?
- Does each bedroom need its own circuit, or can they share circuits?
- Do the bedrooms need AFCI circuits?
- Does an unfinished basement need wired for the rough-in inspection?
In all of this, one rule of thumb is to put no more than 10 receptacles on a single 20 amp circuit. So use that as a starting point. The idea is not to surpass 50% of the circuit's max in nominal use.
As for lighting, well, what does the lighting consist of? 2 60 watt bulbs or huge chandeliers with 20 bulbs each? We need more info.
Watts = Volt x Amps
Amps = Watts/Volts
So 100Watts/110V = .91 amps
Generally I say 1 amp per 100 watts of light bulb. So again figure this to 50% of the circuit rating. You will get roughly 1000 watts of light safely on a 20 amp circuit... 10 100watt bulbs, 16 60 watt bulbs, etc.
Bedrooms: no GFCI necessary unless there is a water source in them and the receptacle is adjacent to those water sources. Bedrooms can share circuits, but see the rules of thumb above. How big are they? Remember, you need 1 receptacle at 6 feet along the wall as soon as you enter and additional receptacles at most 12 feet apart from that point forward. So a huge bedroom could take its own circuit where as two small bedrooms could be fine on a single circuit.
Leave the garbage disposal on its own dedicated circuit as they will pull 7-10 amps on their own which hits that 50% mark. Same deal with sump pumps and dish washers.
Jay, see the replies over on ContractorTalk.
You mean afci? afci is required by code for such locations, not to mention tamper proof receptacles.
Doh! AFCI... read that wrong. In any event though... yes, bedrooms need AFCI.
Perhaps this will help me and everyone else... but what do you have on your panel currently? Do you have room for new circuits? Your dining room and the eat in area receptacles may work on the same circuit, but as rgsgww points out, you have to separate things. So what are you looking at over all? I just wonder if you aren't looking at a sub panel depending on what the situation is.
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