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Fig 1 Shows What Is Referred To As A Radial Circuit (sometimes Called A ‘loop-in’ Or ‘multi-point Radial Lighting Circuit’). Fig 1: Multi Point (loop-in) Radial Lighting Circuit The Light Wiring Diagram Shows How The Live Feed From The Consumer Unit (fuse Board, Shown In Blue In Fig 1) Feeds Into The First Ceiling Rose (ceiling Rose A .