Wire size?

Merry Christmas
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LarryFine said:
Depends on the appliance: is there a white wire?
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See here is my problem I will be running 8-3 wg ground because the guy at the appliance store said that is what is "required" But he said it was a 30A oven and above that will sit a 30 A microwave which they say also "requires a 8-3 w/g. I just would like to know what you all think about that.
 
I would run 10/3 so if they change the appliance and the new one has a 120 volt feature, the neutral would be there.

Bikeindy, it seems as if you are driving at something ,....so, what are you driving at??
 
bikeindy said:
See here is my problem I will be running 8-3 wg ground because the guy at the appliance store said that is what is "required"
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Is this "guy at the appliance store" is qualified to give this advice? I once ran into a situation where the "guy at Big Orange" said that an electric dryer circuit needed 6-3 and a 50A receptacle and breaker. He was sure he was right and even defensively mentioned that he "went to school for electrical."

Unless you have written specs on the appliance, all you can do is use your best judgement and follow the code. Sometimes specs are wrong, though. I did a table saw circuit/receptacle recently where the manufacturer's specs didn't make sense, so I called the manufacturer and got one of their tech people to look into it. He agreed that I was right and the installation instructions were wrong. The advice he gave me over the phone did make sense.

bikeindy said:
But he said it was a 30A oven and above that will sit a 30 A microwave which they say also "requires a 8-3 w/g. I just would like to know what you all think about that.
Click to expand...

I've used 10-3 for all the 30A ovens I've installed. I've never even heard of a 30A microwave, especially one that apparently needs 240V (if it requires 8-3). If it's the same "guy at the appliance store" giving this advice, I would insist on written specs from the manufacturer before proceeding with the wiring. If the wiring turns out to be wrong when the appliances get installed, guess who is going to get blamed.
 
In this case I would get the name and number of the appliance(s) and find out for myself what is "required." The internet is a wonderful tool.

I have never seen a micro that requires a 30 amp branch circuit.

My small wall oven has a 3800 watt rating , devide this by 240 and you get 16 amps
 
I'd probably run the 8/3 and bill accordingly. The info presented (albeit by appliance guy) indicates 8/3. No harm if wire is oversized if you can bill for it. If you can't bill for it, I'd reasearch the appliance spec's myself.
 
An oven/microwave combination unit will often require more than a 30 amp branch circuit. Mine requires a 40. The appliance dealer has the installation manual. He should have the correct information.
Don
 
Unless I missed something , the "appliance guy", has stated that he needs two 8/3 circuits.

I would not put much faith in the "appliance guy" I just installed a dryer outlet for a customer , when I got there the 4 wire cord was connected , the "appliance guy" installed it "he does it all the time" , Well sure enough when I checked, two of his connections were loose and the bonding strap was still connected to the neutral.
 
throw away the code book ...

throw away the code book ...

Yo bikeindy ... by golly after reading your posts I say lets throw away the code book and start asking "THE APPLIANCE GUY" ... is he selling you the wire too ... (please forgive the sarcasm guys) ... needless to say I'm sure to catch flack for this post but I goota ask ... did you take the Journeymans test the same day as the contractors test ... you don't seem to have very much experience at this contractor stuff ... keep striving I'm sure you'll make a good one some day ... M
wait a minute, didn't I read previously that Indiana doesn't require "Tests" or licences ... just curious ... M
 
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