ANSWERS: 2
  • Ring is more expensive to install as it takes double the cable (but not double the installation time) but it is far superior in performance, as the current to any one socket/outlet has 2 parallel paths to take, so the cable is under less load. Also if one leg of the ring fails open (loose terminal in a socket/outlet) then the remaining leg still safely provides current. Radial circuits are adequate for lighting, as it is a low load, but sockets/outlets are best fed from a ring. The money you save on a radial main won't do you much good when it's all on fire! (Answer based on UK regulations)
  • IN RING CIRCUIT CABLES ARE NOT EASY TO GET OVERLOAD because it have two path way of the supply.

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