Joshua

That is flat conductor cable. It is a commercial wiring method, used in offices. It is allowed under carpet squares. It is wrong under wall-to-wall carpeting. It requires a metal shield between the carpet and cable. It shouldn't be exposed on the baseboard. See article 324. Joshua

No

HouseWhisperer (great name BTW) I'm agreeing with most of what you've said. I am wondering about this one: However, GFCI devices (both receptacles and circuit breakers) are designed and intended to disconnect both the hot conductor (also referred to as the “ungroundedâ€

I don't see how they can do that. The upper thermostat is a single-pole double-throw switch. When it senses adequate heat, it connects one side of the 220 to the lower element. The lower thermostat is a single-pole single-throw switch. When it calls for heat, it closes the circuit. However, when the uppper element also calls for heat, its thermostat sends current through the upper element, cutting off the lower one. Since only one side is switched, there is voltage present at all times in both elements, but there isn't current on more than one element at a time. Cold water is introduced to the bottom of the tank. If the water in the top is still hot, only the bottom element operates. When the water in the top is also cold, the top element takes over and the bottom one stops.

The wires might be in grooves in the baseboard. Ancient wiremold. Joshua

The thing in the photo is not right. The inspector shouldn’t have passed it. There are two different sizes of wires coming off the lugs in the meter. There should be plastic bushings on the conduit fittings. The AC box would have to be rated as service equipment. It isn’t the right kind of equipment. Why not just use the other breaker slot in the panel?

Is that the instrument that UL has been complaining about because it is misrepresented as an AFCI tester? I hope it comes with instructions that provide a better explanation about what they mean by 12A, 15A, and 20A load tests. Impedance is not exactly the same thing as resistance (resistance is a component of overall impedance) and it sure isn't measured in percentages of anything. I don't understand what the statement in quotes is trying to say, other than the word "fire" catching my eye. Joshua

The holes allow you to see if a red anti-short bushing was used - they are needed with BX cable. Joshua Download Attachment: Image05.jpg 164.32 KB