Electrical systems with voltages significantly lower than mains wiring. Examples include ethernet, telephone, cable tv, and alarm systems.

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Sudden low-voltage to the HVAC UV light unit

The UV-light installed in the HVAC quit working. Replaced the unit which still didn't work. Had the new unit tested by the manufacturer and its ok(they repalced it anyway). Tested the power source ...
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What are the building codes for installing cat6 in a commercial building?

I am installing a security camera system in a brand new construction site, in a restaurant to be exact. I am not doing any electrical wiring, everything is plug and play. However, I am installing data ...
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Fireplace switch: wiring length/gauge limitations?

We have a propane fireplace insert that can be wired up for a switch. Right now, there are two 6" 18g single-strand leads that when nutted together complete the circuit allowing the fireplace to turn ...