Solar PV advice

[Richard77]

What do you all reckon with regard to this from SunSynk manual?



The bolt is 6mm definitely in the inverter (measured it) so M6...
But the lug it's showing to connect has inner diameter of 8.4mm which is surely M8?

What the..?

Not really good safe practice to fasten an M8 lug to a M6 bolt is it?

[AGT]

Use the 6mm hole crimp if it fits, less likely to get any future issues.

[Richard77]

Sorry for another question....

I noticed a thread with people weighing their cables and didn't realise that there would be that much difference between the quality/weight of cable from different suppliers, so that leads me to the question:

Can any of you recommend an online reputable cable/lug supplier?

Ideally with prelugged cables as I assume the tool to crimp them would be an unwanted expense for a one time use? If not... A decent cheap crimping tool to DIY?

Need 35mm² .. small lengths
M6 --------- M10 x2
M10 --------- M8 X2

Thanks...

[nowty]

Hydraulic crimping tool's can be had off fleebay for circa £20, well worth investing in one.

[Richard77]

Hydraulic crimping tool's can be had off fleebay for circa £20, well worth investing in one.

Thanks... I'll have a look.

[Stinsy]

Sorry for another question....

I noticed a thread with people weighing their cables and didn't realise that there would be that much difference between the quality/weight of cable from different suppliers, so that leads me to the question:

Can any of you recommend an online reputable cable/lug supplier?

Ideally with prelugged cables as I assume the tool to crimp them would be an unwanted expense for a one time use? If not... A decent cheap crimping tool to DIY?

Need 35mm² .. small lengths
M6 --------- M10 x2
M10 --------- M8 X2

Thanks...

Good places to buy cable are the well-known electrical wholesalers, bad places are eBay and Amazon. At one point the very best place to buy cable was to butcher jumpleads bought at Aldi! Not sure if this is still the case. Weight is a very good measure of quality and unfortunately, fraud is rife!

Crimping tools are simple devices and the fancy battery ones the pros use arent as good as the manual ones with levers and they're cheap enough. Better to crimp your own cables so you know it is done right and you get the prefect length.

[AGT]

35mm2 meter tails from electrical wholesalers?
They might hire out crimping tools too?

[Richard77]

Cheers...

Yeah I think i will purchase a hydraulic crimping tool and get all cables/lugs myself.... Prices don't seem too bad. For some reason I thought they would be more expensive.

Cable
Lugs
Crimping tool
Heat shrink plastic

Some more items for the shopping list.

[Richard77]

35mm2 meter tails from electrical wholesalers?
They might hire out crimping tools too?

I might just buy one... Seen some on eBay for about £23, hydraulic ones. Don't look too bad.

Yeah think I'm gonna go 35mm² everywhere and 200A/250A (inverter max discharge/charge 190A) fuses in the disconnect switch.

And buy the correct sized lugs for every connection.
M6 for inverter
M10 for fused disconnect.
M8 or M10 for bus bar box or whatever I end up buying.

And make up my own cables.

[Stinsy]

35mm2 meter tails from electrical wholesalers?
They might hire out crimping tools too?

I might just buy one... Seen some on eBay for about £23, hydraulic ones. Don't look too bad.

Yeah think I'm gonna go 35mm² everywhere and 200A/250A (inverter max discharge/charge 190A) fuses in the disconnect switch.

And buy the correct sized lugs for every connection.
M6 for inverter
M10 for fused disconnect.
M8 or M10 for bus bar box or whatever I end up buying.

And make up my own cables.

Sounds like a plan!