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  1. 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...
  2. 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...
  3. bigclive

    Metal trunking.

    See if the UK had a REAL electrical standards agency. They'd standardise metal trunking lid so that no matter which brand you got it would be compatible with the lip on any other. they could also standardise the joins and angles so the holes were compatible. It's kinda annoying when you're on...
  4. bigclive

    Socket and See test kit.

    Just got one of the Socket and See meter sets to try out. One niggle... The battery contacts are the usual spring arrangement except for the two connections that go to the PCB. Those are just flat spring strip and when I dropped the first battery in it was a loose fit. One quick adjustment...
  5. bigclive

    Defibrillators.

    Just in case there's anyone who is still unaware of how these things have evolved over the years, here's a quick insight. An AED (Automatic External Defibrillator) is an electronic device that is designed to assist in the treatment of individuals who have received a life threatening electric...
  6. bigclive

    Sheep.

    Guy walks into the kitchen with a sheep under his arm and says:- "This is the pig I **** when you've got a headache." Wife looks up and says:- "That's not a pig, it's a sheep." He says:- "I wasn't talking to you."
  7. bigclive

    Tester choice.

    As a time served electrician with 25 years in the industry under my belt I spend most of my time working freelance for various companies. (Mainly so I can have loads of free time). When I'm working with other companies I use their supplied test gear to do any testing, so I've played with...
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