Our first decision was to use the on-board 24 volt system in the “house”. A second independent alternator was fitted for charging two Lifeline deep cycle “house” batteries exclusively. Joined in series, these 12 volt batteries will produce 24 volts with a total 100 amp capacity for the “house”. Mounted on a sliding tray they’re accessible from the side door for servicing.
The first junction in our electrical layout is a bus bar which transmits power from the the batteries to the fixtures.
Our needs are basic: lights and ventilation fans. Some of our “appliances” don’t have switches and require a distribution panel. The first line from the bus bar goes to this 6-gang distribution panel that has in-line fuses.
From this panel, using the rocker switches we’ll control two muffin fans and the pre-existing ceiling light/ventilation fan. Bonus – the panel also includes two USB ports, a 12V DC socket and a voltage readout.
Other “appliances” including two LED cabin tube lights, a gimballed cabin fan and a LED goose-neck reading light have built-in switches. From the bus bar, the second line goes to a fuse block. From the fuse block, lines go to each of these “appliances”.
Charging 110V appliances such as a camera, laptop and flashlight batteries demanded our electrical layout include a pure sine wave inverter.
The inverter, directly connected to the house batteries is also grounded to the vehicle chassis. This 350 watt inverter won’t handle the load a toaster requires but it’s more than adequately sized to meet our needs.
For safety and to keep wiring tidy, surface conduits are used throughout the “house”.
With a great deal of help from our friend Steve, the electrician we can see light at the end of the tunnel.