Ok so you have the classic to cables in back of socket. Spurs should be identifiable through higher resistance but if very short spurs and it's an older install and you want to break into the ring to add another socket. You could be creating a spur off spur off spur?
How do u go about being certain in this scenario before the addition and do u always do it in practice?
How do u go about being certain in this scenario before the addition and do u always do it in practice?