Monday 1 July 2013

Electrical and Micro install

 Built and roughed in the shelf for the microwave. Made sure there is still room underneath to reach in and grab whatever junk we store behind the seat.
The shelf is milled from 1/2 inch mahogany that was recovered from a 100 year old house, there is a strip of black cherry biscuited through the middle. The corners are supported with aluminum angle pained black. I drilled up into the topsides oversize holes. I pulled out the balsa core around the holes and filled with west system epoxy mixed with thickening agent. let dry and re-drill for the screws on the supporting brackets.

 
Test fit the 700 watt microwave ...looks good.
This is the panel I machined up. It holds a smaller panel on the right that controls the bilge pump.
I installed a flip (float) switch next to the bilge pump and rewired the whole thing along with the wiring for the steaming and anchor lights. I added a Hubbel twist lock plug that handles both lights, allowing them to be disconnected if the mast is pulled. The center of the panel has the amp meter with a shunt that I have been trying to install for ever. To the left is a very heavy duty (overkill) DTDP switch. It allows current to flow to a plug near the microwave. If you flip it up the circuit is rerouted to the inverter. I tried it without the motor running and it is barely making it.This is because the start load of the microwave is overwhelming the inverter. With the motor revving and the increase in voltage and available amps, it works like a dream. I don't have enough battery power to run it long without the motor and that is fine. We can warm things up quickly away from the dock if we wish by just starting the little diesel. For smaller loads like charging the computer, it should be OK without starting the motor up. This was a lot of extra work but it is a better installation and I learned a few things.

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