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| geobloke Member Since: 06 Nov 2012 Location: Nottinghamshire Posts: 4410  
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Ok the first ting you need to do is think ahead. Calculate what and how many accessories you want on the circuit and specifically what the max amperage is likely to be. Then add 25% extra for accessories you haven't thought of yet. From that you get your gauge of wire, shut off switch and fuse amperages.
FYI: Amps = Watts / Volts The routing is the easy part, out the battery box, along the chassis rails to wherever you want the distribution board to be. From the distribution board you wire in the accessories with fuses and relays. When it comes to siting things like anderson connectors then the GMB wing top lockable box is a good solution for security, ease of access and storage. If you are thinking of a winch at some point then this is the perfect time to run the two cables (+ve and -ve) to the front and use this for your front accessories. Later you can spur off this for the accessories when you fit your winch. Building in the capability at this stage will save you so much time, effort and money later on. Be warned though, wiring is a tad addictive and the best place to begin after you list of accessories and capacities is to draw yourself up a wiring diagram that leads to a from the battery. It's a satisfying task over a beer or coffee  |
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5th Apr 2022 7:00pm |
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| LandRoverAnorak Member Since: 17 Jul 2011 Location: Surrey Posts: 11324
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That's exactly what I did. A single feed from the battery box (via a second battery, although that's not essential) to a fuse box and various controls in the rear. For my purposes, I have taken feeds from side, brake and reverse lights but again, that's not strictly necessary. Depends how you want things to work, really.  Click image to enlarge Anyway, there's lots more detail in my build thread: Auxiliary Electrics Pt 1 - Rear Quarter Mounting Panel Auxiliary Electrics Pt 2 - Fabrication and Wiring Diagram Auxiliary Electrics Pt 3 - Main Power Feed and Work Lights Auxiliary Electrics Pt 4 - Circuit Components Auxiliary Electrics Pt 5 - Wiring Darren 110 USW BUILD THREAD - EXPEDITION TRAILER - 200tdi 90 BUILD THREAD - SANKEY TRAILER - IG@landroveranorak "You came in that thing? You're braver than I thought!" - Princess Leia |
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5th Apr 2022 8:01pm |
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| MussEd Member Since: 20 Feb 2013 Location: East Lothian Posts: 354  
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Lol - LRA you know I’ve been marvelling at your handiwork for days now!
 May have to tone down my tribute act cos there’s no way I’m reaching that level! Some truly excellent ideas as ever, if whatever I do eventually do turns out half as good as your work I’ll be happy enough!
And Geobloke - some excellent points there, thanks for the response! |
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5th Apr 2022 8:29pm |
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| LandRoverAnorak Member Since: 17 Jul 2011 Location: Surrey Posts: 11324
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Thanks for the kind words but I'll freely admit that I've overcomplicated it to achieve the functionality that I wanted. The basic idea is sound and relatively straightforward though. Darren
110 USW BUILD THREAD - EXPEDITION TRAILER - 200tdi 90 BUILD THREAD - SANKEY TRAILER - IG@landroveranorak "You came in that thing? You're braver than I thought!" - Princess Leia |
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5th Apr 2022 8:38pm |
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| MussEd Member Since: 20 Feb 2013 Location: East Lothian Posts: 354
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I'm afraid I'm still obsessing over the best way I can tackle the aux electrics in the rear. So much so that I can't decide what to do! The bit that is freaking me out is how to control the lights/sockets so a bit more research required. My wiring 'diagrams' are so billy-basic I'd be embarrassed to show them on here.
As a result I've decided to push on with the Anderson connectors part of my electrical project, ordered all I think I'll need and can't wait for the various bits to arrive so I can get stuck in. |
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8th Apr 2022 3:30pm |
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| macfrank Member Since: 05 Nov 2015 Location: somewhere in the north Posts: 1076  
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Just don't forget the most important basics: - correct minimum wire gauges: must match the calculated max amperage and also wire length; there are online calculators for that - same goes for the ground (return) wires - fuses go as close to the battery as possible; they protect the wires not the accessories. *Additional* fuses for each outlet farther away from the battery wont harm, though. - perfect crimp connections each time, using the right tools; don't bodge! - protect wires in automotive non-flammable conduit - a wiring diagram
- patience  |
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8th Apr 2022 8:10pm |
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| MussEd Member Since: 20 Feb 2013 Location: East Lothian Posts: 354
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Well, some progress of sorts. Recently finished off the Anderson jump leads and engine bay Plug the other day. Hope never to have to use it but it’s there if required.
And whilst I deliberate endlessly over how to set up auxiliary fuse board and distribution I took a rush of blood today and fitted my Whelen Perimeter scene light. Temporarily wired into the unused rear window demister. Once I sort out the aux fusebox situation I’ll hopefully ibstall out a switch at the rear of the vehicle. Btw If you’d told me when I first bought this very expensive car that a few years later I’d be happy to drill holes through body panels, I’d have laughed in your face.
Ps if anyone knows of a source of replacement Puma switch fascias - please give me a shout… |
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5th May 2022 9:20pm |
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