Adding a 12 volt power point
Hello, I am working on my Outdoors TT. I would like to add a 12 volt power point. I can get 12 volts at the battery switch easy but am having a hard time finding a decent ground without making holes ...
Forum Discussion
Connecting a 12V (-) phase wire to a 120 V AC receptacle ground opens the possibility of a 120 V device shorting to ground and putting 120 V AC on the (-) phase of the 12 v circuit. That is not a good thing.
Any connection to frame or the battery negative, either directly or through the (-) phase wiring in the 12V distribution panel is what you need.
An alternative is to connect to (-) at another 12 V device but since you may be using this power port with devices that draw significant current, you would have to make sure the originally wired 12 V device has sufficient wire size for both that device and the device powered by the new power port. In most cases, that will not be true. Better to wire directly to frame or battery negative.
Any connection to frame or the battery negative, either directly or through the (-) phase wiring in the 12V distribution panel is what you need.
An alternative is to connect to (-) at another 12 V device but since you may be using this power port with devices that draw significant current, you would have to make sure the originally wired 12 V device has sufficient wire size for both that device and the device powered by the new power port. In most cases, that will not be true. Better to wire directly to frame or battery negative.
