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

J

jase31

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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:

diditrain

-
Arms
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?
 
run a new supply for out house
 
O

Octopus

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Why would fitting a 13A FCU introduce nuisance tripping?

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