Discuss Easiest way to protect 2.5mm spur off 32amp ring. in the Electrical Wiring, Theories and Regulations area at ElectriciansForums.net

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J

jase31

Found a 2.5mm spur running of a ring (no rcd, 32 amp rewireable ). The spur supplies a outhouse with a CU (10amp and 5amp mcb)

Due to layout cant get take spur directly from closer to the CU, or put in a separate circuit. Simplest seems to be to put in a 13amp fcu to protect the spur, however this may cause nuisance tripping / overload of 13amp, so something else may be a better option?

What is the easiest way to protect the spur?

The outhouse cu runs a light on the 5amp and a double socket on the 10amp (non RCD). Supply is tncs with no extraneous conductive parts.
 
Last edited by a moderator:
What is the supply to the outhouse for? When you say nuisance tripping , does the consumer unit in the outhouse have RCD protection?
What is the supply type in the house, are there any extraneous conductive parts in the outhouse?
 
Why would fitting a 13A FCU introduce nuisance tripping?

And yes it would be the best thing to do, given what you've outlined.
 

Reply to Easiest way to protect 2.5mm spur off 32amp ring. in the Electrical Wiring, Theories and Regulations area at ElectriciansForums.net

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