Hi,
My new build house is fitted with a Hager VC755H1 consuer unit. It's a dual RCD fixed bus bar configuration CU with 5 protected ways on each RCD and a 100A main isolator.
For a few reasons (RCD in series with CU in detached garage, smoke alarms ([on upstairs light circuit] rendered inoperative if a different circuit trips, potential for one fault tripping numerous circuits etc) I don't really like it. So I was wondering if it can be "converted" to a consumer unit that uses RCBOs and maybe the odd MCB.
My thinking is to remove the two RCDs, purchase a replacement full bus bar and load it up with RCBOs for the majority of circuits. Ideally I would like to leave the circuit that feeds the garage CU on an MCB and have RCD protection in the garage CU, possibly via RCBOs again. However, I appreciate that this circuit might need to have RCD protection at the main CU as the cable runs through internal walls before it exits the building.
Anyhow, is the above feasible? I stress that I will be getting a qualified person to do the work but I'm trying to assess what is possible and associated cost/disruption.
Cheers,
Dom
My new build house is fitted with a Hager VC755H1 consuer unit. It's a dual RCD fixed bus bar configuration CU with 5 protected ways on each RCD and a 100A main isolator.
For a few reasons (RCD in series with CU in detached garage, smoke alarms ([on upstairs light circuit] rendered inoperative if a different circuit trips, potential for one fault tripping numerous circuits etc) I don't really like it. So I was wondering if it can be "converted" to a consumer unit that uses RCBOs and maybe the odd MCB.
My thinking is to remove the two RCDs, purchase a replacement full bus bar and load it up with RCBOs for the majority of circuits. Ideally I would like to leave the circuit that feeds the garage CU on an MCB and have RCD protection in the garage CU, possibly via RCBOs again. However, I appreciate that this circuit might need to have RCD protection at the main CU as the cable runs through internal walls before it exits the building.
Anyhow, is the above feasible? I stress that I will be getting a qualified person to do the work but I'm trying to assess what is possible and associated cost/disruption.
Cheers,
Dom