Search results | Page 7

Search results

  1. Andy-1960

    AFDDs and SPDs has anyone read up on these things yet?

    AFDD’s are primarily aimed at the domestic market as this is where most people tend to sleep and that is what they are aiming these things at, so I think you will find most domestic installs will require one unless it is declined by the client. SPD’s from what I am being told will be mandatory...
  2. Andy-1960

    AFDDs and SPDs has anyone read up on these things yet?

    Recently attended a NICEIC 'Tech Talk' and this was one of the subjects. AFDD's at present are not compulsory but my thoughts are you may have some difficult questions to answer as to why you did not fit them if there was a fire. I think all we can do is advise the customer they are available...
  3. Andy-1960

    Bathroom light switches - what are you guys fitting?

    Kinetic switch if it must go inside?
  4. Andy-1960

    what is this switch for ABB

    Yes, there is no trip block fitted from what I can see.
  5. Andy-1960

    Metal play equipment supposedly live due to powerlines?

    I was recently working on a site in London where a grp substation housing we working in had all of the metal work, door lock, door hinges, ventilation grills, etc showing voltage.. enough to feel - we measured it and it was showing 100v ish to earth. When we detected this the site was not live...
  6. Andy-1960

    Drawing . . free to use?

    I’m contemplating semi retirement but offering a CAD service to do things such as this.. would be interested if this is something people would be interested in
  7. Andy-1960

    Pete's Videos Home made Volt stick from a highlighter pen, lovely

    Next weeks video is how to make a highlighter out of a volt stick!
  8. Andy-1960

    Question about transformers and on-load tap changers (OLTCs)

    Actually you can get on load tap changers, I have only ever seen them on induction furnace transformers where blips in the supply are not too important, so not too sure about distribution transformers for general loads.. think it would be potentially cause a lot of issues. But I also believe...
  9. Andy-1960

    Question about transformers and on-load tap changers (OLTCs)

    Most mv transformers have 5 step tap changers on the primary winding and although these are off load devices the principal is the same. Tap1 +5% Tap2 +2.5% Tap3 0% Tap4 -2.5% Tap5 -5% The plus percentages add windings so therefore reduce the voltage, the minus percentages therefore take...
  10. Andy-1960

    old copies of BS7671

    I’ve got a copy of the 13th, I think 1958 is when it’s dated. Hard back A5 size....
  11. Andy-1960

    Bathroom extractor switch

    Think you’re holding back a bit there Tel!
  12. Andy-1960

    High Zs on submains and high Ze

    How about supplementing the DNO earth with an earth rod or mat?
  13. Andy-1960

    3 phase clamp meter monitor

    Not really such a thing as a cheap one, but I use one of these and charge it out at about £400 per week to do a survey and then compile a report. It’s paid for itself several times over! elcomponent.co.uk | 3 Phase Data Logger, Energy Management Solutions -...
  14. Andy-1960

    Electrical enclosure build

    At the very least you will need to do a risk assessment for the safety circuitry and then build in accordance with BS EN 60204-1.
  15. Andy-1960

    de Havilland Mosquito - l would love to see and hear one of these overhead

    Fantastic aircraft, last one to fly here crashed at an air show in 1996 after attempting some aerobatics which affected fuel supply to the engines resulting in a stall. There is one flying in New Zealand having been restored by a multi-millionaire private collector. Let’s hope they get one...
  16. Andy-1960

    Increasing 3PH Supply?

    What is the power factor, you may be able to reduce the current being drawn by installing some power factor correction equipment.
  17. Andy-1960

    Are we all looking forward to saving £11 per year?

    I reckon that they will start to use them to charge for peak time use of power. So, cooking the turkey on Christmas Day may suddenly become a lot more expensive. I have resisted these from day one, I had my current supplier ring me recently and his main selling feature was that I don’t have to...
  18. Andy-1960

    fluctuating readings on a tt rod

    Earth mat in Bentonite should improve the situation
  19. Andy-1960

    Favourite car chases in a film or TV show

    Bullitt is by far the best, but I also like the one in ‘Golden Eye’when James Bond is chasing the baddies in a Russian Tank. ‘Puppet on a chain’ also has a cracking chase, but doesn’t really count as it’s boat chase!
  20. Andy-1960

    Window actuator wiring

    Your theory seems right, but it may need a centre off position on the switch.

OFFICIAL SPONSORS

Electrical Goods - Electrical Tools - Brand Names Electrician Courses Green Electrical Goods PCB Way Electrical Goods - Electrical Tools - Brand Names Pushfit Wire Connectors Electric Underfloor Heating Electrician Courses
These Official Forum Sponsors May Provide Discounts to Regular Forum Members - If you would like to sponsor us then CLICK HERE and post a thread with who you are, and we'll send you some stats etc

YOUR Unread Posts

This website was designed, optimised and is hosted by untold.media Operating under the name Untold Media since 2001.
Back
Top