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davesch
My Son has just moved into a flat with 2 storage heaters on economy 7. The CU is an older MK sentry one with 2 incomers fed from separate feeds from the meter, 1 permanent, 1 for economy 7. There are no RCDs which is not ideal. Options for rectifying that as I see it are:
Replace current setup with 2 new boards, a 17th edition one for the permanent supply and garage unit for the eco7. That's probably the best option, but due to space and cable runs will be difficult.
Change the 2 MK LM5500 incomers with RCDs. That's probably the easiest route, but the newer MK RCDs are fitted on the left rather than on the right as per the current setup meaning the L & N would be the opposite way around. Although I don't have a MK RCD to hand, the pictures online don't show L & N markings, so I'm unclear if they are reversible.
Last option is to fit a 17th edition board, losing the incomer giving me 2 more MCB positions and feeding straight into the 2 RCDs, one for the Permanent supply, one for eco7
The last 2 options would of course mean all lights and sockets would be fed from the same RCD
Which of the above options would be acceptable ?
Replace current setup with 2 new boards, a 17th edition one for the permanent supply and garage unit for the eco7. That's probably the best option, but due to space and cable runs will be difficult.
Change the 2 MK LM5500 incomers with RCDs. That's probably the easiest route, but the newer MK RCDs are fitted on the left rather than on the right as per the current setup meaning the L & N would be the opposite way around. Although I don't have a MK RCD to hand, the pictures online don't show L & N markings, so I'm unclear if they are reversible.
Last option is to fit a 17th edition board, losing the incomer giving me 2 more MCB positions and feeding straight into the 2 RCDs, one for the Permanent supply, one for eco7
The last 2 options would of course mean all lights and sockets would be fed from the same RCD
Which of the above options would be acceptable ?