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    Notifications

    Hi I'm watching a few topics at the moment. They have been receiving replies but I haven't had any email notifications. Just wondering if anyone else is having the same problem or if it's something that's gone wrong at my end.
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    Question for electricians

    This is an anonymous poll as I'm curious to the result.
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    Heating pump size.

    I'm after an idiots guide to heating pump sizing. What do the numbers mean? How do I know what size pump I need for my system? Thanks
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    Is bonding required?

    Been to look at a job today. It's a new build detached garage. We are installing a swa to feed the garage CU. The existing house installation is a brown wylex standard so we will Henley the tails to supply a switch fuse for the garage supply. There is no bonding in the house. Do we need...
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    Ballast rating vs lamp rating

    I've got a UV filter for my pond which takes a 55W 1200mm lamp. Unfortunately the ballast has burnt out and failed shorted to earth. Ballasts for 1500mm 58W tubes are readily available and cheap. Will the additional 3W rating cause an issue or do I need to try and source a 55W ballast?
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    SWA resin joints

    I've got a SWA cable to repair next week which has been severed by a digger. The cable is cleated to a wall outside. Is a resin joint kit ok to use on a cable which is not buried in the ground and exposed to UV etc?
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