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  1. bigclive

    Vans- what you got

    Transit for me. When you're 6'4", stocky and have size 15 feet it's the only option. I tried all the others and they were just unusable, but the transit is comfortably roomy even for someone my size.
  2. bigclive

    isolator required or not?

    I'm going to be pro-isolator here. Even though the main DB has one itself, it's useful to have an external one to allow future upgrades including addition of other DBs without having to pull the boards fuses.
  3. bigclive

    Benefits of being a JIB Approved Spark??

    Let us know what they say. From the look of it you've been working as a general maintenance person as opposed to being an electrician. Have you had formal training in electrical work or just picked it up as you went along? If that's the case then you'll probably have to do a formal course to...
  4. bigclive

    Electricians pub ammo

    Yeah, but they're a darn sight more interesting than the other stuff. Besides, after a few beers they'll believe anything. Guiness Drink
  5. bigclive

    Legal Advice, Non electrical

    Be persistent. They will initially try to fob you off with part compensation or red tape to avoid paying. Just keep harassing them until they get sick of you.
  6. bigclive

    retraining after along time

    And if the JIB do have a record then just call 'em and tell 'em your national insurance number and they can check. At least they can at the SJIB. (Scottish Joint Industry Board.) Training is an industry these days. If you ask a training company for advice they will "advise" you to do lots of...
  7. bigclive

    Electricians pub ammo

    During an unrelated experiment, Nikola Tesla discovered that just 50mA at 50Hz was a sufficiently high enough current to cause muscular contraction of enough magnitude to crack walnuts between the thighs of his cleaning lady.
  8. bigclive

    Electricians pub ammo

    In 1847 Edison conducted an experiment on a mentally ill patient and concluded that it takes just one Ampere at 400V DC to blow an average male adults cock in half.
  9. bigclive

    Electricians pub ammo

    It's a little known fact that because slow cookers only consume 50W of power they turn all your food into something resembling uncooked soup. If left on for 20 hours a slow cooker will consume one unit of electricity which could have been used to make approximately one ton of crispy oven chips...
  10. bigclive

    Electricians pub ammo

    Nikola Tesla envisaged a system whereby the upper ionosphere could be charged with respect to ground and properties would receive their electrical supply by on-roof electric aerials. TRUE!!!!!!
  11. bigclive

    Electricians pub ammo

    In America and sometimes in Britain, the high voltage overhead systems are worked on live. Typically in America a lineman dies every week. This is an improvement over the early days when the fatality rate for linemen was almost 100%. There are very few deaths associated with live work in the...
  12. bigclive

    Electricians pub ammo

    The first recorded electrocution was unfortunately of a technician setting up a public demonstration of electricity. He was electrocuted in front of the audience.
  13. bigclive

    Electricians pub ammo

    Nikola Tesla pioneered the use of polyphase AC. This was championed by Westinghouse in direct rivalry to Edisons DC system. Both parties held public demonstrations to show how dangerous the others system was by electrocuting dogs!
  14. bigclive

    Rings 'n' radials.

    Maybe the exciting loop arrangement is the only excitement in their life alongside the two-way switching. :^O I reckon they should phase ring mains out and enforce the use of radials with two feeding the kitchen. One extra breaker, one short length of twin and earth saved and 8 more Amps.
  15. bigclive

    POP!

    Spot on. If you look through the lamp you'll see a thin wire wrapped around the filament support leads just above the glass bead. It;s a wire with what I guess to be a thin oxide coating on it that has a high resistance at 12V but when the lamp goes open circuit the voltage rises to the full...
  16. bigclive

    Hep with chalet installation

    Now that you mention it, and more importantly now I've gone and had a look it does appear that the 4mm is adequate for the application. It's method C and the rating for 4mm 4-core does exceed 32A. (42A on the chart I just consulted.) That means that all I need to do to that part of the job is...
  17. bigclive

    POP!

    Yes the failed lamps DO go short circuit (sometimes) but HOW do they do it. I want you guys to guess before I tell you. ;) Do you want a clue?
  18. bigclive

    Rings 'n' radials.

    So at what point is the IET (why did they change from IEE?) going to realise that in general radials are a more sensible option? I noticed that in Oz they use radials on their 240V system.
  19. bigclive

    POP!

    So why do lamps fail with a pop and a flash? And why do they go all sooty inside and take out the breaker when they do fail like that? The reason is because when a filament fails some tungsten is vaporised at the failure point and effectively turns the lamp into an unballasted metal halide...
  20. bigclive

    Rings 'n' radials.

    So why do we even use ring mains at all? Is it true that they were introduced to reduce the amount of copper used in wiring during war times? A ring main is probably the single circuit most likely to be miswired either during installation or modifications, and even if a wire pops out somewhere...
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