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oldsparky99
I've just moved into a 1960's house and when checking the supply to the detatched garage I came across a strange cable type that I at first thought was SWA. It's 10mm diameter with a black plastic sheath. There is one core of 7 strands with red pvc insulation, 7 strands individually insulated with black pvc and 7 bare strands. The 7 individually insulated strands have all been connected together and used as the neutral. There is no armouring and all conductors are copper. Anyone seen this type of cable before ?