Electric new install
I am putting in all new 12v and 120v electric in a van. Quick question should i use two or three strand 120v wire for plugs? putting in a WFCO 8700 series power center.
Forum Discussion
theoldwizard1 wrote:
The really old laptops had some big "power bricks" that really needed to be run off of AC. The new ones are tiny and you can buy a 12V power supply that would draw about 5A-6A. The new USB-C Power Delivery specification has a 100W max output, but 60W is more common. I have yet to see a 100w USB-C 100W power supply that runs on 12VDC. Even so, it would draw less than 10A.
The NEC does not permit anything smaller than 14 gauge for ordinary AC branch circuit wiring. 18 gauge wires are permitted a few specialized cases, including certain control circuits and fixture wire (which includes cords for appliances and drop wires for pendant lights).
Even if it were permitted, appropriate circuit breakers smaller than 15A are not all that common (although they do exist).
