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On 31/10/17 00:09, mad.scientist.at.large@××××××××.com wrote: |
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> |
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> the issue is with plugging one thing, into another, into another and |
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> then into the wall, most outlet strips are cheap, they don't use proper |
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> sockets and often have/develop a significant resistance, which creates a |
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> hazard etc. |
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In the UK at least also, we have ring mains. These are rated at 30 Amps, |
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from which you can take a 13 Amp feed from any socket. Once you start |
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taking power over multiple leads the wiring has more resistance, plugs |
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introduce resistance, etc, and the voltage can drop rapidly. |
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(It is mandatory, according to code, if you hard-wire a feed off a ring |
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you must separate it with a 16 Amp fuse.) |
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> |
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> |
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> There are actually multistage devices that can protect low voltage lines |
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> (i.e. control lines on a transmitter tower) from a direct lightning |
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> strike assuming they have a good enough ground connection. of course |
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> it's likely to destroy the surge arrestor, which isn't cheap, but it |
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> protects far more expensive equipment when it self sacrifices. |
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> |
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I've never seen one, but I would have thought a motor/generator pair |
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with a hefty flywheel would provide very good surge/spike/whatever |
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protection, and provide nice clean power. Plus, it would be unlikely to |
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burn out if you had to provide protection from several big consecutive |
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shocks, like a lightning strike. |
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Cheers, |
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Wol |
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