Recent content by Marvo

  1. Marvo

    UK Running an additional armoured cable to outdoor building.

    As above, sounds like you may overload the garage supply and 10mm SWA cable is expensive and might be completely unnecessary. Rather spend the money on getting a decent sparky to give you good advice on a circuit design that will work without overspending and without it becoming an annoyance due...
  2. Marvo

    Merry Christmas, Ya Filthy Animals!

    Hope you all had a great Christmas and all the best from me for the New Year
  3. Marvo

    Can anyone identify the model of this siemens fridge?

    It's doubtful you'll be able to identify the model of the fridge just using the info on the compressor. There's always a sticker with the make, model and electrical details somewhere but sometimes they're in a very hidden place. Try removing the drawers in the fridge section and check at the...
  4. Marvo

    Insulation resistance results weird on actuator circuits

    It is a bit odd. It's not an essential service that's got a high impedance IT earthing arrangement for first fault tolerance is it? I'd suggest just accurately record all the IR test results and monitor their trends over time.
  5. Marvo

    Fluke t5-1000 electric shock

    I'm assuming it's not been subjected to moisture or excessive condensation in the van maybe? If not I'd probably open it up and do a visual check of the internals then just relace the leads as a matter of course.
  6. Marvo

    Garden lights... IP68 + vermin protection

    If it's underground I've always favoured SWA with good old fashioned resin joints. I would make a 3 way resin joint below ground, no enclosure necessary and would have used a short section of HO7 cable through a diagonal drilled hole into the bollard. It's swings and roundabouts, if there's a...
  7. Marvo

    When do Neutrals need to be switched?

    All good thanks, still trying to retire but still finding myself busy as ever. Hope you're well.
  8. Marvo

    Electric screwdiver

    I'm the opposite, I also have an old and a new version and I prefer the newer one. I like the settable clutch on the newer one and also like the button option, if it's small screws I find you have to push the old one too hard sometimes to get it to run.
  9. Marvo

    When do Neutrals need to be switched?

    Our local regs (not UK) require both L+N to be switched if earthing arrangement is TT.
  10. Marvo

    why the new fluorescent lamp feels lower brightness?

    Fluorescent tubes also have 'triphospher'' versions. If the old tubes were triphospher versions they would have been up to 20% higher lumen output for the same wattage, they would also have had better colour rendering. Also as James mentioned the new tubes may be slightly different colour...
  11. Marvo

    2 x t&e for 3 phase isolator

    Are the cables the same CSA? maybe it's just the photo but they look like different types of cables to me....
  12. ECC FR SWA Cable.jpg

    ECC FR SWA Cable.jpg

    • Marvo
    • Media item
    • Comments: 0
    • Category: Electrical Videos
  13. Marvo

    25mm swa armour for cpc

    Price. SWA comes in many armour variations, there's aluminium armoured (which isn't SWA in the purest sense), steel armoured and also combination steel armoured with varying numbers of copper armour wires to decrease the armour impedance. You just specify according to your application. If you're...
  14. Marvo

    7.5kW single phase soft start

    Maybe look at replacing it with a VFD rather than a plain soft start...
  15. Marvo

    Torque Multiplier

    I've also used them many years ago, they're okay if there's a place available to anchor the foot and it doesn't matter if it leaves a divet in whatever it's sitting on. Maybe useful if you're working on heavy construction steelwork or structural anchor bolts. Nowadays the newer generations of...
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