Originally Posted by Silver Suckr
Can anyone help with some wiring plans for my 1968
Trailer is completely gutted all but the skins and wiring within. Thinking I will purchase a good generator to take care of most and plug in to outside power when needed. Planning to purchase ohm meter to begin resistance testing wires to see where they lead go???? Once figured, can I just buy small conventional appliances that run on 100V?
Love some input, just getting feet wet at this point
City power goes to the AC and outlets.
The 12 volts DC goes to the furnace, water pump, ceiling fans and all the lights.
How many circuits you need depends on how and what your going to change.
Generally speaking, each side of the trailer, has it's own 120 volt circuit breaker. The AC has the other breaker, and the univolt should have it's own 120 breaker as well.
For the 12 volt
circuits, usually there a 4 of them. You will have to determine what currect drain, at maximum, you will demand from each circuit. Those circuits are usually rated at no more than 20 amps each. You should not design any cicuit that will demand more than 15 amps, at full load. The currect drawn for each 12 volt
circuit will increase when the trailer is plugged into city power which increases the current draw.
The formula, for the DC stuff, is E=IR. E is the voltage, I is the current and R is the resistance.
Keep in mind, that when the univolt is working correctly, the 12 volts will increase to about 13.5 volts. Also, measuring the number of 'ohms" that each bulb has, is a waste of time, since the resistance increases when the filament gets hot.
Make you own schematic, before you start any wiring changes.
You will be glad you did.