Hi
For those with experience of BG Fortress...
In another post I've seen that my BG twin RCD box is no longer considered suitable as it uses type AC RCDs. The solar people also installed their circuit onto one of the RCD sections which is a bit naughty. The installation is TN-S if that makes any difference.
I'm having an extension done so will need some alterations done by a sparky soon as BC won't accept a minor works cert from me. Therefore to save cash I'm thinking I should upgrade to RCBOs and may as well add an SPD now so I'm fully 18th compliant.
Things I've thought about:
I think I'll need RCBOs, BG SPD kit, bootlace ferrules and crimper. For neatness I was thinking also to buy a new busbar, sheet of labels and the new type blanks that clip onto the DIN rail.
I'm planning on trimming the neutrals and thinking they are fine stranded so have to be ferrule crimped? Are the leads all 4mm or does it vary with RCBO rating? I believe the current range don't have a functional earth to worry about.
I'd like to get a new single neutral bar but can't find it for sale. Any ideas if there is a standard size block I can buy that will fit into the retaining clips? If not I guess I'll need to link the neutral bars, was going to cut links from the 16mm pre-cut RCD fly leads which won't be needed any more.
Would you mount the SPD right of the main switch and link the live from the MCB? Otherwise if I mount the SPD to the left of the MCB I'll need to cut a tooth out of the busbar and it seems a bigger electrical safety risk to have it running under the SPD? The kit comes with a cream functional earth lead and brown and blue links.
I was planning to use a type A RCBO for the solar inverter as that's what the manufacturer recommends. I know some people have said you shouldn't have RCD protection on the inverter due to nuisance trips.
My wiring is fairly well tested. For expedience I was planning to 250v megger at the main switch outlet but don't feel the need to redo polarity, loop impedance etc for every circuit since no one else has worked on it - unless you suggest there is a reason to. What I can't get hold of is an RCD ramp tester. Is it worth hiring?
Anything else to think of?
I thought about swapping the CU but funnily enough that would be notifiable whereas changing all the protective devices isn't! Plus the kits don't have the selection of RCBOs I need anyway.
Thanks
For those with experience of BG Fortress...
In another post I've seen that my BG twin RCD box is no longer considered suitable as it uses type AC RCDs. The solar people also installed their circuit onto one of the RCD sections which is a bit naughty. The installation is TN-S if that makes any difference.
I'm having an extension done so will need some alterations done by a sparky soon as BC won't accept a minor works cert from me. Therefore to save cash I'm thinking I should upgrade to RCBOs and may as well add an SPD now so I'm fully 18th compliant.
Things I've thought about:
I think I'll need RCBOs, BG SPD kit, bootlace ferrules and crimper. For neatness I was thinking also to buy a new busbar, sheet of labels and the new type blanks that clip onto the DIN rail.
I'm planning on trimming the neutrals and thinking they are fine stranded so have to be ferrule crimped? Are the leads all 4mm or does it vary with RCBO rating? I believe the current range don't have a functional earth to worry about.
I'd like to get a new single neutral bar but can't find it for sale. Any ideas if there is a standard size block I can buy that will fit into the retaining clips? If not I guess I'll need to link the neutral bars, was going to cut links from the 16mm pre-cut RCD fly leads which won't be needed any more.
Would you mount the SPD right of the main switch and link the live from the MCB? Otherwise if I mount the SPD to the left of the MCB I'll need to cut a tooth out of the busbar and it seems a bigger electrical safety risk to have it running under the SPD? The kit comes with a cream functional earth lead and brown and blue links.
I was planning to use a type A RCBO for the solar inverter as that's what the manufacturer recommends. I know some people have said you shouldn't have RCD protection on the inverter due to nuisance trips.
My wiring is fairly well tested. For expedience I was planning to 250v megger at the main switch outlet but don't feel the need to redo polarity, loop impedance etc for every circuit since no one else has worked on it - unless you suggest there is a reason to. What I can't get hold of is an RCD ramp tester. Is it worth hiring?
Anything else to think of?
I thought about swapping the CU but funnily enough that would be notifiable whereas changing all the protective devices isn't! Plus the kits don't have the selection of RCBOs I need anyway.
Thanks