- Reaction score
- 57
hey guys
i understand that a rcd main switch "should" not be installed (under BS7671) as segregation of circuits would be impossible and could result in danger/ inconvienience as all circuits would be deenergised in the event of a fault (reg 314). This arrangement (Front end RCD Main Sw) is very common though and not just on TT systems so when additions are made for example new shower circuit or cooker circuit or external lighting there is no way of applying reg 314 to the new circuits added. My view after reading the regs is that the new circuit obviously must comply with bs7671 and even though it is being connected to a consumer unit with a RCD Mainswitch, the C.U. and Mainswitch must be treated as retrospective installations under different regulations. I appreciate that this is not an ideal situation but i find it to be a common one within domestic insatallations. just wondered if anybody viewed it the same way or should i not be installing new circuits to C.U that have front end RCD due to reg 314 any thoughts ?
i understand that a rcd main switch "should" not be installed (under BS7671) as segregation of circuits would be impossible and could result in danger/ inconvienience as all circuits would be deenergised in the event of a fault (reg 314). This arrangement (Front end RCD Main Sw) is very common though and not just on TT systems so when additions are made for example new shower circuit or cooker circuit or external lighting there is no way of applying reg 314 to the new circuits added. My view after reading the regs is that the new circuit obviously must comply with bs7671 and even though it is being connected to a consumer unit with a RCD Mainswitch, the C.U. and Mainswitch must be treated as retrospective installations under different regulations. I appreciate that this is not an ideal situation but i find it to be a common one within domestic insatallations. just wondered if anybody viewed it the same way or should i not be installing new circuits to C.U that have front end RCD due to reg 314 any thoughts ?