Carrying out a EICR. Stumbled on 2 x portacabins. Testing the ring in bottom portacab to find an SY 2.5mm has been spurred off the dado sockets, exits the bottom cab clipped externally upto the top of the top cab and supplies an LED flood. Automatically i thought its wrong. No spur. But im now thinking C3. Its a fixed load. It supplies 1 x light on the top of a high level portacabin. What are peoples thoughts? Obviously Zs commplying. The DB is inside the cab for local isolation.