With Australian Standards hidden behind a paywall, perhaps this forum can get me the answer for free :-)
Wiring around a 48V battery. That voltage is classed DVC-A, therefore totally legal to DIY - just thought I mention that up front to shut up all the usual naysayers.
I know it is common to use red cables for positive, black cables for negative. Question now: Is that colour code mandatory as per any Australian Standard (similar to the mandatory brown/blue/green&yellow colours in AC wiring) or just nice to have?
Reason for the question: the best quality and price DC rated, double insulated, wires of larger sizes that I found are welding cables. Most of them are orange like these here.
I would add black / red sleeves heat-shrink to the lugs/ends to make my life easy and avoid confusion, but would be very happy if using orange cable is considered ok. Alternatively: on the off chance I missed a better option, does anyone have a link to a supplier where I can get 1m black and 1m red 70mm2 flexible double insulated cable for $43 delivered?
As far as I know there is no mandated standard for any un-fixed wiring. There are plenty of standards though and it makes sense to follow an appropriate one.
I have done this often times in the past.
I'm not sure if welding cables are rated for 100% duty? But if the cross sectional area is adequate then I'd be confident.