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Electric Arc 30cm 180KV

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Uploaded by on Aug 13, 2007

1972 BBC Television Film in a lab

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Entertainment

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Standard YouTube License

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Uploader Comments (thomasking55)

  • Is anymore of this video available

  • Yes, a full programme.

  • I wonder if that glaze is toxic...

  • I'd bet it is. The entire series of (early 1970s) engineering programs featured really dangerous situations, like open baths of zinc, sulphuric acid and plastics vapours!

  • That's why I usually play it safe with the various chemicals I use, I don't want to be told that something once considered safe has caused me to get cancer.

  • Indeed. Here in the UK Health and safety got an uplift in 1973, and a lot in the nineties, and now it is really high due to the claims for petty accidents and compensation culture. If you need danger to have fun, it isn't here!

    No more playing with mercury.

Top Comments

  • If you want to start an arc at 1/2 inch it takes about 15kV, even if the starting current is only a few hundred microAmps (this will be a cool arc). If you want to start an arc by touching 2 wires together, then pulling them apart until the gap is 1/2 inch, you need only a few hundred volts, but at several amps (this will be a VERY HOT arc).

    So the amps versus volts depends on exactly how you intend to make your arc, and how much power you intend to deliver (power = amps * volts).

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All Comments (16)

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  • Very informative video.

  • @jmartis2 - Yea I want it too, however they are very expensive, I was quoted $15,000+ AU to have one made, and the factory was generally not interested in such a small one-off order.

  • Those are 230 kV lines at the end.

  • please upload more! ;)

  • Cool.

  • ye it probably is

  • Liquid glaze is just solid material in suspension, likely fine powdered glass and some coloring in water. Not dangerous unless you were to drink it.

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