ABSTRACT
As discussed earlier, polarity on ring final circuit conductors is achieved simply by conducting the ring circuit test. For radial socket outlet circuits, however, this is a little more difficult. The continuity of the cpc will have already been proved by linking line and cpc and measuring between the same terminals at each socket. Whilst a line-cpc reversal would not have shown, a line-neutral reversal would, as there would have been no reading at the socket in question. This would have been remedied, and so only line-cpc reversals need to be checked. This can be done by linking together cpc and neutral at the origin and testing between the same terminals at each socket. A line-cpc reversal will result in no reading at the socket in question.
