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    Roller shutters UPS advise

    Fire shutters and smoke screens, at least the ones I've seen, (shopping malls, commercial atriams multi screen cinemas etc,) close in the event of an alarm. Most also have a fail safe mechanism that will let them drop in the event of a power and back up failure. Require pyro or FP wiring and are...
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    Roller shutters UPS advise

    Wouldn't it be easier to just get the winding handle out and open them manually in the rare event of a power cut?
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    Haygain wiring diagram

    No that was HAYWAIN haygrain was painted by the inspector. 1576330280 When clearing out my parents house i found a violin and painting in the attic. I took them for valuation and they said, "what you have here is a Constable and a Stradivarious". However, "The bad news is Constable was a crap...
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    Reduction in electrical work

    I think the problem is more the fact that cowboys are attracted to electrical work because 95% of the end product is covered up. So the customer is not really sure what they have got, and most have no idea about certification. So, as long as it works, it's ok. With plastering, tiling or...
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    Hand warmer review

    My wife uses these. They do foot version also. Just open pack, shake and they get warm, not hot but reasonable warm. Reactivate occasionally by shaking so more oxygen can get to the contents. No smell at all. Once only use, but cheap enough to bulk buy and keep in the van / toolbag. Will last...
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    Day 10 Advent Calendar!

    Ohm's Ohm's off the scale And often lectricians do fail Particularly ones who are not worth their salt Cause they can't find a neutral earth fault.
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    A different business model for PAT testing?

    I read your business model as, your going to charge then £75 for day 1 to prepare an estimate?. Can't see that working.
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    Mitsubishi colt

    It could be the search function has been activated. The radio will search for any station it can find and play it. If it finds one you like then you select it. If not then, after a while, it will bleep and go looking for another station.
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    Replacing NeoStat with Nest

    As bigspark17 says, heatmiser will do everything that nest can do and lots more. However, if your not using the neohub and phone app then you are missing out on 90% of the functionality. Check out the tutorial videos on Google.
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    MF ceilings and fire containment

    If the cables are going to be plaster bordered and skimmed over, then they are deemed to be within the fabric of the building and no special requirements are needed with regards to fire safety.
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    What is this?

    Area limit for automatic mower ?
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    Garbage disposal wiring problem

    If it its a GFCI (or RCD) that is tripping, but is holding when the switch is closed, then there is no imbalance in the circuit. If a double pole switch is fitted, and one pole is opening very slightly before the other then a imbalance will be detected and the device will trip. But until the op...
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    Garbage disposal wiring problem

    How do you know that? If it is (going to ground) then how come it holds until switched off?
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    Garbage disposal wiring problem

    Sounds like it's an RCD and a DP switch with a slight delay between the poles.
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    Consumer unit heights

    It's still the same today, except grannies have now to be included in the measurement.
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    Which Triple Pole ladders

    The advantage of a triple is its easier to extend while still standing on the ground. With a double you will be extending it to full height when half way up it.
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    Unskilled management v skilled knowledge

    To me, it sounds like the "unskilled manager" is more skilled at managing you than you are at managing him.
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    Lithium-ion battery makers awarded nobel prize

    Stanley whittingham is British, born in Nottingham, Oxford education, and helped develop the lithium-ion battery while working for Exxonmobil, one of the world's biggest oil companies, in the 70's. So according to the swedes, who like to consider themselves a very "woke" nation, big oil is not...
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    Dog's Danglies or what?

    No. Mines a brunette.
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    Is Part 'P' enforceable?

    The real problem lies with Building Control. There are supposed to be alternatives to the competence schemes that allow qualified sparks to notify direct and pay an admin charge, say about £20 ?, some local authorities allow this but, in the main, most just tell you to join a scheme provider as...

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