Discussion on MW dedicated circuit

busman

Is there anything in the NEC (other than the requirements to follow the manufacturer's instructions) that requires it to be dedicated?

Mark

busman

Code reference please?

busman

I'm still waiting for a code reference that says this needs to be a dedicated circuit.

Mark

Scuba_Dave

Read section 200 of NEC for Load calculations

busman

Dave,

Without looking at my code book - Art. 200 is "Use and Identification of Grounded Conductors" and what would load calculations have to do with microwaves. The only place load calculations and branch circuits really overlap is the controversial requirement that limits receptacle outlets on commercial circuits due to the load calculation. That and the small appliance and laundry requirements.

If you are saying that a microwave is a continuous load (greater than 3 hours) and needs to apply the 80% rule, that's a stretch. Please cite a specific code section.

Thanks,

Mark

Scuba_Dave

Keep reading

busman

I hate to be blunt, but as a Master Electrician with 20+ years experience, I know the code books like the back of my hand. Can you please just cite the specific code section and make your argument.

Thanks,

Mark

Jupe Blue

Manufacturer's requirement on every built in microwave I've installed in the last 4 years.

busman

I mentioned this requirement earlier. Anything else?

Mark