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- 30 Apr 2021
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Hello DIYNot forum members!
I need to find a suitable and accessable place to add a switched 3A-fused spur for a boiler. I have two accessible rings to add it to:
1) Upstairs lights - not suitable, as it lives on a 6A RCD (B6)
2) A mysterious 63A RCD Protected Circuits breaker that gives power to a Vent-Axia unit in the loft (right above the boiler switch -perfect!).
The vent unit unit and the two sockets in the loft continue to function when all other RCDs are OFF and only the "RCD PROTECTED CIRCUITS" one is ON.
Question 1: Is there any professional reason for the two sockets in the loft (and cable that carries current to them) not to be protected against overloading (sitting on a 63A RCD)? Is that normal? I can see that vent unit is on a fused spur, so at least that is current-limited.
Question 2: I would like to add another fused spur to come out of the same point as the Vent-Axia one, using an approppriate cable, protected by a 3A fuse. Would it a problem? If you require more information - please do ask.
Thank you in advance!
I need to find a suitable and accessable place to add a switched 3A-fused spur for a boiler. I have two accessible rings to add it to:
1) Upstairs lights - not suitable, as it lives on a 6A RCD (B6)
2) A mysterious 63A RCD Protected Circuits breaker that gives power to a Vent-Axia unit in the loft (right above the boiler switch -perfect!).
The vent unit unit and the two sockets in the loft continue to function when all other RCDs are OFF and only the "RCD PROTECTED CIRCUITS" one is ON.
Question 1: Is there any professional reason for the two sockets in the loft (and cable that carries current to them) not to be protected against overloading (sitting on a 63A RCD)? Is that normal? I can see that vent unit is on a fused spur, so at least that is current-limited.
Question 2: I would like to add another fused spur to come out of the same point as the Vent-Axia one, using an approppriate cable, protected by a 3A fuse. Would it a problem? If you require more information - please do ask.
Thank you in advance!