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  1. GBDamo

    New project, advice sought

    This why we put a small DB in every critical room and have all critical equipment on its own circuit, that the chair, intraoral X-ray and the suction pump as well as general sockets and lights. Things like compressors, servers, autoclaves etc... The number of practices that are in converted...
  2. GBDamo

    New project, advice sought

    I know, I've done a few. There's a distinct switch from what we remember as a dentist to more of a cosmetic services centre. More interested in straightening and whitening than fillings. It's where the money is and where the dentists want to be and why you can't get an NHS dentist anymore...
  3. GBDamo

    New project, advice sought

    Yes all white, thankfully. They won't accept ceiling hatches and the longest cable run is likely no more than 20m. I appreciate this may mean running some 4mm flex to manage VD on the bigger drivers. It all a bit of supposition at the moment we've two weeks of gutting the place first during...
  4. GBDamo

    New project, advice sought

    I am pushing for AC but they seem more interested in pretty lights. Data is cable runs only, I don't make off or test.
  5. GBDamo

    New project, advice sought

    I'm starting a new project on Monday, new dental practice conversion from a shop. Nothing new here, customer doesn't know what electrical heating they're having, doesn't know what electric hot water they're having, hasn't decided outlet locations, switch locations or just about any aspect of...
  6. GBDamo

    Hello everyone need some advice

    The Part P "qualification" was an attempt to plug a hole where none electrical contractors had a small component of their work that was electrical. This would lead to one of three options;- 1, The company would employ an electrician. This proves problematic as there is often not enough...
  7. GBDamo

    Buying elecrical/electronic components from the onlime marketplaces.

    The problem is many of the brands are withdrawing from 'marketplaces' leaving only the Russian roulette 'brands' from China to take their place. This is a problem of regulation, Trading Standards used to shut this crap down now nobody seems to care. Nobody gives a ---- about toys that don't...
  8. GBDamo

    Bad wiring: request advice

    Eh!!! in short... "I don't know who did this, I want to blame the builders, who do I complain to"
  9. GBDamo

    Buying elecrical/electronic components from the onlime marketplaces.

    Below is a Louis Rossmann video where he reviews fuses he bought from an online marketplace. The results of his testing is terrifying and needs to be more widely recognised. Now, I know us professionals will not purchase critical components like fuses in this manner but I recall the recent...
  10. GBDamo

    Problem with Danfoss FP715Si Programmer

    I wonder if these are getting fritzed by the power outages or over voltages. Do you have surge protection @LittleTyke ? Could be these Danfos controllers are acting as a canary, it possible other more expensive items are at risk of damage.
  11. GBDamo

    Mold cleaner spilled on an outlet do I get help ASAP or let it dry?

    That's "biodegradable, septic safe" mould remover. It's not even going to attack he mould it's meant for let alone any components of the socket. Unless it's strongly acidic (theres nothing in the ingredients to suggest it is) it's not going to go for the metals in the time its actually wetted...
  12. GBDamo

    Mold cleaner spilled on an outlet do I get help ASAP or let it dry?

    When I'm called out to things (coffee usually) spilled in sockets incidents I back the socket away from the wall to check for standing fluids then I use a spay duster can to blow off all the rear terminals and the socket holes. In all honesty this is mostly for show, to be seen to be doing...
  13. GBDamo

    UK Can anyone tell me what is wrong/incorrect.

    I'm not sure the polarity is wrong, but probably the tails are incorrectly identified. Many meters have L-N-N-L terminal lay-out. Whichever though, its not correct.
  14. GBDamo

    UK Can anyone tell me what is wrong/incorrect.

    OK so I was clutching at straws but it is the kind of thing examiners include solely to stop people getting full marks.
  15. GBDamo

    UK Can anyone tell me what is wrong/incorrect.

    The earth tag does not match the template laid out in BS7671. The text should read, "Safety Electrical Connection, Do Not Remove" Not, "Safety Electrical Earth, Do Not Remove" I'd also argue the Hepworth branding should not be there and the standard Earth pictogram is not used. Pedantic...
  16. GBDamo

    Ground sourced heat pumps - how they work

    They work well in well designed and insulated properties and in climates that are more stable than the UKs. All things being equal, in an equally well insulated property with a well designed emitter system, they only out perform a gas boiler, on cost, above 5⁰C (ish) ambient temperature...
  17. GBDamo

    Earthing Arrangement (TN-S or TN-C-S or a Frankenstein Creation?)

    Even if its TN-S at the intake its probably TN-C-S 100 yards down the road. Speaking with DNO engineers, repairs and replacements are TN-C-S. This is all urban, not sure the same applies in rural networks. Vaguely remember on my, only used once, EV charger course they recommend treating...
  18. GBDamo

    Dodgy trade pictures for your amusement! - 1 Million Views!

    £10 for a galv box, lug and a gland. Even ScewStation carry the parts to do this properly, no excuses.
  19. GBDamo

    Dodgy trade pictures for your amusement! - 1 Million Views!

    Not dodgy work but, has anyone seen green goo in lighting wire?
  20. 20231128_075754.jpg

    20231128_075754.jpg

    • GBDamo
    • Media item
    • Comments: 0
    • Category: Electrical Videos

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