Just two things i was wondering about,
If an earth fault occurs in my garage, the breaker (Type B) on the garage board trips, as it should, however the MCB in the house CU which is protecting the SWA supplying the garage also trips despite being larger (rated). would it be permissible (or even acceptable) to change the breaker in the house to a type C or type D? Would this solve my problem?
Also i have seen (twice) an entire domestic CU fitted with Type D breakers in Ireland. Is this serious or just bad practice? Why was it done in the first place?
How serious an offence is it to spur off a spur. I know it is not allowed by the regs, but lets say you wanted a socket in your attic and the nearest socket was already a spur. could it be done? I am asking more in a theoretical sense than anything else, I have seen it done and was just wondering.
If an earth fault occurs in my garage, the breaker (Type B) on the garage board trips, as it should, however the MCB in the house CU which is protecting the SWA supplying the garage also trips despite being larger (rated). would it be permissible (or even acceptable) to change the breaker in the house to a type C or type D? Would this solve my problem?
Also i have seen (twice) an entire domestic CU fitted with Type D breakers in Ireland. Is this serious or just bad practice? Why was it done in the first place?
How serious an offence is it to spur off a spur. I know it is not allowed by the regs, but lets say you wanted a socket in your attic and the nearest socket was already a spur. could it be done? I am asking more in a theoretical sense than anything else, I have seen it done and was just wondering.