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    Rusty Chisels and Files

    Following a garage flood, I was lucky that most tools and materials escaped unharmed. However I have some chisels (average quality) and some files (really good ones) that are now rusty. Do I write these off or can they be saved? The files do still function but they don't look very nice and they...
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    Unnecessary FCUs?

    Is there a need for a Fused Connection Unit (as opposed to unfused) for hard-wired appliances which have their own dedicated (and correctly protected) radial circuit? I am doing my own house wiring (I have an electronics background), and a qualified electrician is giving guidance and...
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    What is a Pressure Limiter Supposed to Do, Exactly?

    Hello, We had major plumbing work carried out last year. Mains pressure is very high here (10 Bar I think) so the contractor fitted a 3 Bar limiter after the stopcock. I would have expected (possibly incorrectly) that this would 'regulate' rather than 'limit' the pressure to 3 Bar. I come from...
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    How well do Active IR Sensors cope with Power Outages?

    Hi, I have a wireless (433MHz) alarm system. The PIR sensors this came with are prone to false triggering. The alarm manufacturer does not supply any active IR sensors that are compatible, however I do have the technical know-how to buy an active transmitter/receiver pair and link it to a...
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    Changing the fuse in a fused connection unit?

    I agree that you *should* be able to do exactly as people here are saying - apply thumb pressure and turn the screw. But it seems some are faulty. The issue I had with mine is that, however hard I pressed and at whatever angle, there was still about 0.5mm left to go before the screw would have...
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    Changing the fuse in a fused connection unit?

    I have had exactly this problem over the weekend with a brand new MK FCU I just fitted. They come with a 13A fuse as standard, and my application required 3A. I got the old fuse out, but could not for the life of me get the little plastic drawer thing back in (even when I tried it with no fuse)...
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