12VoltInstalls
life passes by too quickly to not live in freedom
Longish post.
I think my plan is fine.
Criticism IRL has me second guessing myself.
Context:
I have what most consider a ‘small’ system of currently/newly 2500W of solar panels. These are all home-runs to 4 SCC’s.
I’ve always been a bit fussy about homeruns to avoid fire risk (resistance makes heat) and homeruns do not have efficiency implications nor connections (MC4’s) to be a failure point. Was somewhat easy being a (mostly) stationary RV with 1kW of panels mounted to it.
New property I just purchased and moved here fully offgrid.
I have ~1900W facing SW, and ~600W SE and just built a small 24’ shop building to which the panels are mounted with total run to RV is 75’ +/-
I am wired homerun right now but it has become clear that I need some flexibility before ‘final’ install because at the very least I need to be able to disconnect at the camper, and to perhaps add disconnects at the shop I will need to cut wire as well.
I have these and these on hand, spares from a 12V project. Is there any reason to not use them with crimped and soldered ring terminals on thhn as junction blocks for solar? The seem to have the voltage rating.
Wires are in underground 1/2” black poly pipe. The terminal blocks will be installed in IP68 6x6 JB’s with waterproof conduit compression gland nuts. I want one JB on interior wall of shop, one on the frame rail of camper, underneath.
Friend’s brother is electrician, said use wire nuts. I’m not using wire nuts on DC. Thanks
3 runs connect 630W of panel at ~93VOC, 1 run connects 600W at 132VOC
I think my plan is fine.
Criticism IRL has me second guessing myself.
Context:
I have what most consider a ‘small’ system of currently/newly 2500W of solar panels. These are all home-runs to 4 SCC’s.
I’ve always been a bit fussy about homeruns to avoid fire risk (resistance makes heat) and homeruns do not have efficiency implications nor connections (MC4’s) to be a failure point. Was somewhat easy being a (mostly) stationary RV with 1kW of panels mounted to it.
New property I just purchased and moved here fully offgrid.
I have ~1900W facing SW, and ~600W SE and just built a small 24’ shop building to which the panels are mounted with total run to RV is 75’ +/-
I am wired homerun right now but it has become clear that I need some flexibility before ‘final’ install because at the very least I need to be able to disconnect at the camper, and to perhaps add disconnects at the shop I will need to cut wire as well.
I have these and these on hand, spares from a 12V project. Is there any reason to not use them with crimped and soldered ring terminals on thhn as junction blocks for solar? The seem to have the voltage rating.
Wires are in underground 1/2” black poly pipe. The terminal blocks will be installed in IP68 6x6 JB’s with waterproof conduit compression gland nuts. I want one JB on interior wall of shop, one on the frame rail of camper, underneath.
Friend’s brother is electrician, said use wire nuts. I’m not using wire nuts on DC. Thanks
3 runs connect 630W of panel at ~93VOC, 1 run connects 600W at 132VOC