… yesterday when I talked about this snow.
This morning there was about half an inch on the deck of the new Indespension trailer and other similar surfaces. There was also a layer on the leaves on the plants and so on, but it hadn’t stuck to the ground.
And as the day wore on, the snow gradually disappeared, washed away by the thin drizzle that fell throughout the day.
I’ve been working on the power board in the barn. I’ve found two melamine-covered chipboard planks that were part of an old cheap chest of drawers. They are 25cm wide and so, together, were about right for the 55cms that I need to cover the power board below where the charge controllers are. I’ve mounted them on 37mm laths so that they stand off the back part of the power board and the cables can pass behind.
I’ve invented a kind-of hinge set out of a couple of L-shaped joinery brackets, so that these smaller boards will drop down so that I can work on the cables behind if necessary, and the upper board is installed.
As for the lower board, that has the laths and the hinges, and I’ve also drilled 3x8mm holes in it. I then cut some 80mm lengths of 8mm threaded rod and passed them through the holes.
I’ve fitted some plastic pattresses front and back on each of the threaded rods. And if anyone wonders why it is that I have fitted the terminal connections within pattresses, then drop a spanner down the back of the power board with no pattresses and 660 amp-hours of batteries wired in, and see what happens.
I bolted the rods firmly in place so that there is 25mm of threaded rod out of the back and about 35mm out of the front. Attached to the rear of the threaded rods will be connections for all of the electrical equipment that will be permanently in place, and in the front will be the more temporary types of electrical equipment.
Two of the lengths of threaded rod have been connected together with a negative battery cable, as I’ve found in the past that I need about twice as many negative connections than positive connections.
And why is this?
That’s because there’s a fuse box off a Vauxhall Astra wired into the positive circuit. I like these because they are easy to take off scrap cars, and have one thick lead in, four of the giant fuses, and four wires out. I have four 12-volt electrical circuits – an upstairs lights and upstairs power, and a downstairs light and downstairs power. These circuits feed off the fuse box of course, but each one needs to have the negative circuit connected to the power board individually.
So that’s as far as I have reached today. Tomorrow I’m out, and so I’ll crack on with the power board on Friday.
