Solar PV advice

[Fintray]

I can't see any problems with that; if you can, make sure everything is torqued to the correct amount.

[Richard77]

I can't see any problems with that; if you can, make sure everything is torqued to the correct amount.

Thanks... electrician will fit it all, so will remind them. I will make up the cables myself though.

Just thought I read that every cable length should be exactly the same length. But my longest run needs to be 1.2m, so can't butcher my original 2m cables to all be the same lengths

[nowty]

Don't worry too much about slightly different cable lengths, no system is exactly perfect. Who cares if your using say 1% or 2% more from one battery than the other, if you make a potentially shorter cable longer just for the sake of being equal, you will end up wasting more energy overall. The batteries themselves won't be perfectly equal either.

Also re-torque up a month or two after going operational, its surprising how stuff beds in from the temperature cycling.

[pudding]

Its all the cables to the batteries that should be the same length so each battery sees the same resistance/voltage drop, it doesn't matter if the Keto to inverter cable length is different from the battery ones, that's fine.

[Richard77]

Cheers nowty....

Its all the cables to the batteries that should be the same length so each battery sees the same resistance/voltage drop, it doesn't matter if the Keto to inverter cable length is different from the battery ones, that's fine.

Thanks pudding... I was thinking along the same lines. Think I just wanted some reassurance before I start cutting!

[Richard77]

Trying to make the cables up and these 35mm² lugs will not fit on these 35mm² cables!!!

<Loud scream>

[nowty]

Trying to make the cables up and these 35mm² lugs will not fit on these 35mm² cables!!!

<Loud scream>

Cut a few strands off the wire until it does fit.

If your using welding cable which has many strands, they sometimes fluff up a bit and can be difficult to get in.

[Stinsy]

Trying to make the cables up and these 35mm² lugs will not fit on these 35mm² cables!!!

<Loud scream>

The other problem is more common: where "35mm²" is really 25mm² and the lugs are therefore loose!

[Richard77]

It doesn't even seem close to going on...

[pudding]

Any pics? Shouldnt be that far out?