It is one of those 'several people have had a look so can you go in and sort it out' jobs, I popped in to aquaint myself with it with the expectation I'd get the call when required.
This is an outbuilding [happens to be an ex telephone exchange] currently used as changing room and pump house for a swimming pool and a koi pool. There is a foolscap log book for all of the history of the complex including all repairs etc, dosing, feeding, etc.
Problem: Intermittent RCD tripping, but when it happens it seems to occur for a number of days then fades away again.
A big old house in a country lane, overhead pole route feeding mostly farms.
The call came in tonight about 10pm.
The outbuilding installation consists of a 2p C50 MCB off the Henley block in the house, 80A RCD, 70m of 3C 16mm² SWA, outbuilding CU:
Main isolator,
2x C32 RFC total of 9DSSO, basically one RFC for swimming pool plant and one for outbuilding use
C32 for 10.5KW shower but one element disconnected making it ~6 to 7KW,
B6 for lighting ring,
B6 feeding 2 DSSO for koi plant customer is convinced this is the circuit causing the problem and ushered me directly to it:
Customer has generator and flood lamps so I was able to turn off main isolator to remove face plates.
Apologies for the poor quality pictures.
This is an outbuilding [happens to be an ex telephone exchange] currently used as changing room and pump house for a swimming pool and a koi pool. There is a foolscap log book for all of the history of the complex including all repairs etc, dosing, feeding, etc.
Problem: Intermittent RCD tripping, but when it happens it seems to occur for a number of days then fades away again.
A big old house in a country lane, overhead pole route feeding mostly farms.
The call came in tonight about 10pm.
The outbuilding installation consists of a 2p C50 MCB off the Henley block in the house, 80A RCD, 70m of 3C 16mm² SWA, outbuilding CU:
Main isolator,
2x C32 RFC total of 9DSSO, basically one RFC for swimming pool plant and one for outbuilding use
C32 for 10.5KW shower but one element disconnected making it ~6 to 7KW,
B6 for lighting ring,
B6 feeding 2 DSSO for koi plant customer is convinced this is the circuit causing the problem and ushered me directly to it:
Customer has generator and flood lamps so I was able to turn off main isolator to remove face plates.
Apologies for the poor quality pictures.
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