RCD trip

No, one RCD would trip the other, can't run RCD's in parallel. Any extension lead would require someone manually to swap over the supply, you can use a battery we call it an UPS, uninterruptible power supply, it can be portable as shown, limit around 2 kWh due to weight, or built in like mine, I have 6.4 kWh, and also charged from solar. But you're looking at £500 plus, is it worth it?

Could run a dedicated supply to freezers, but again the question is if worth it?

When I moved into this house, I had just lost three freezers full of food because the RCD had tripped in the last house while we were away, so I fitted all RCBO.

ericmark said:

No, one RCD would trip the other, can't run RCD's in parallel. Any extension lead would require someone manually to swap over the supply, you can use a battery View attachment 401471 we call it an UPS, uninterruptible power supply, it can be portable as shown, limit around 2 kWh due to weight, or built in like mine, I have 6.4 kWh, and also charged from solar. But you're looking at £500 plus, is it worth it?

Could run a dedicated supply to freezers, but again the question is if worth it?

When I moved into this house, I had just lost three freezers full of food because the RCD had tripped in the last house while we were away, so I fitted all RCBO.

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Hi E,
I see!
I could set up a switch-over in case of one RCD failing, but it's not worth it, the next time it could trip the main one instead.
Thanks, C.

Hi,
Just got back from a few days at Christmas, and all was well.
Then I made some toast and the RCD tripped, so found the culprit.

This is good quality toaster, and 3 years old, but it doesn't eject properly, weak spring.
Next to it is a wedding present from the early 70s, with also a weak spring, and I've been using it to make PCBs with, but it looks like it's a better proposition than the new one, until I buy another. Actually It has a really good crumb door at the bottom, with a hinge and every time I see it remember how things used to be made.
C

camerart said:

Hi,
As a matter of interest, say an RDC bank trips, leaving an untripped RCD bank, is it possible to make a extension lead with two plugs, each from its own RCB conteolled socket, with one socket, so a freezer could be plugged in, and one RCD bank could drop out but the freezer would still be one?
C

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No, it would cause the RCDs to nuisance trip all the time because an RCD is designed to trip if there is an imbalance in power flows between live and neutral. Bridging two circuits means imbalances would happen often

If you're concerned about a loss of power to the freezer, consider dedicating a non RCD circuit to it that is adequately protected in another other way

robinbanks said:

No, it would cause the RCDs to nuisance trip all the time because an RCD is designed to trip if there is an imbalance in power flows between live and neutral. Bridging two circuits means imbalances would happen often

If you're concerned about a loss of power to the freezer, consider dedicating a non RCD circuit to it that is adequately protected in another other way

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Hi R,
Regarding the two circuits, this was answered already, thanks.
#18 shows what most likely happened, so all is well.
C