Fleeting
Well-known member
- Joined
- Mar 27, 2021
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Pre metal enclosure requirements for dwellings it was always a no no for a metal enclosure on a TT system unless the rcd was prior to the enclosure, seems fine now for some reason. TT and caravan parks are always an issue with selectivity between rcds. It may be possible to replace the main switch rcds with 's' types however you may lose your 0.2 disconnection time if required (cannot see what all the circuits are supplying) but then again this may achieve nothing. It needs establishing why the main switch rcd trips, cumulative leakage or just poor selectivity.