Im carrying out a PIR, there is a 3 core (what appears to be solid aluminium armoured) cable supplying one of the single phase DB`s. the solid cores are almost triangular in shape, colours of cores are RYB. The csa looks anywhere between 16mm and 25mm/sq.
Any ideas on cable type and so I can find out the ccc.
Any ideas on cable type and so I can find out the ccc.