Curly solar cable

[rogerthebodger]

The video in Post #8 shows how to do it. The size of the cable only dictates the minimum diameter of the coils can be.

So, if you wish 4mm2 2 core just see how tight the coils can be and use a rod /tube of the size to wrap the cable around

I cannot understand what all the agro is about just chill guys

 

[Rhylsailer99]

That's 1mm² cable so not ideal for solar installations. At 3m length (.75 is coiled length) it'll drop around half a volt on a 50W panel and almost 1V on a 100W panel. That might even be enough to prevent an MPPT from working when you add in the additional cable between that and the MPPT since you need 5V above battery voltage at the MPPT inputs.

I am guessing all 4 wires are connected together to make a total of 4mm^2

 

[Alex_Blackwood]

I will be happy with 2.5mm

So Oceanflex round 2 core 2.5mm would coil satisfactorily, you reckon?

— W

Yes would be fine. Again finding 2core 2.5 mm is not easy, most of it is 3 core for mains leads etc. A search for 2.5mm 2core curly coiled cable will show!

 

[PaulRainbow]

I will be happy with 2.5mm

So Oceanflex round 2 core 2.5mm would coil satisfactorily, you reckon?

— W

Yes, it will be fine.

 

[Rhylsailer99]

At a guess, probably not, that cable is more like flat twin. As far as I can make out from the picture. I think that you will have difficulty finding 2 core 4mm curly coiled cable, not saying impossible but it will cost if you can find it. I have had a search and can't find anything. Probable best do as Rotax said and use something like this.
CM02/09 4.0mm Oceanflex Twin Core Tinned cable - Marine Electricals

I have bought that exact cable and it is very stiff compared to Marine twin core Oceanflex.