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[quote name='Andy

Hmmmmm . Cant say there was any indication that you meant it as a joke , but I will not question your integrity or the competance of a fellow forum member........Couldnt come to lower myself to do it KME ...just not my style mate ;)

Hi Tom. its a tricky one cos youve changed the C.U . If the affected ones are pendants would you think you could swap the lampholders for the type with an in line switch. thereby providing the function of switching the lamp ,albeit at high level, then noting on the cert in the comments box...

If you replaced it with another rcbo and it still trips it sounds like an insulation fault to be honest lilman.

Hi KME. Did I read that right ,are you proposing modifying a 240volt circuit, in the knowledge its wired in Alarm cable :o

Lilman did you carry out IR testing of the circuits

A call out at 3 in the morning and its all included in the annual fee..Not for me switch 10 mate !

If all lights and switches are mettallic you can enter it as a departure on the cert ,if you qualify it with the statement that it is line with the recommendations of the ESC best practice guide.. no ideal though. AS far as the lighting wiring being defective ,I think that needs sorting out .

Hi Tom . , Yes I know you did state there was no cpc, when i suggested testing to earth -with a long lead I meant testing the voltage at the switch and at the light between each conductor and earth at the C.U.

Sounds to me like some sort of series wiring there Tom . could poss be a s/L & N cross connection somewhere. Are the light dimmed in any places.....is there evidence of any recently installed light fittings....try testing to earth also[{ with long lead]...I hope its loop in wiring at the...

Hi KME. was there any Galvo conduit about anywhere ? ; \

Dunno though Andy ,I reckon his mates underpants may have been a bit soiled :^O

Ha ! Ha ! he didnt carry out the Safe Isolation procedure then ! :D

I can see where you are coming from Nicks, each leg of a ring is only permitted to carry 21A continuous , however overloadings for short periods of time are permissable { not 3036s ]. Your the designer of the installation,, you know the loadings on the circuit so yeah go for it if you consider...

I would only install 2.5 radials in a kitchen if they terminated in fused connection units.supplying fixed loads .If they supply socket outlets then the circuit is likely to be overloaded and some one is likely to extend from them at a later date making matters worse...4mm radials are preferrable.

Would the 2.5 mm cater for 25A ?,, suppose it would if it was clipped direct ....not checked the tables .

Didnt know that Zee....apologies Evvo !

Hi PC how do you getaway with 20A radial in a kitchen or do you install more than one radial. ?

would that be two 20A radials Evvo ?

As others have confirmed 2.5m radial circuits are compliant. One point to bear in mind though is that there is the possibilty they were one and the same circuit at some time in the past i.e a Ring final circuit....building alterations or cable faults could have resulted in open circuit on one...