Talk:Power cable
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[edit] Household wiring
My 30 Amp oven/stove is connected with #10 AWG copper wires, about 5 square mm. My stove runs on 240 V, just like a UK cooking appliance. What wire size would be used in the UK? According to table 9D2 in the 15th edition of the wiring regs, to get a 30 amp capacity you would use 6 square mm cable (themoplastic insulation, non-armoured, installed in a wall). So UK regs require *heavier* wires in this specific instance than do US adn Candian rules. It's not generally true to say that US wires are *always* heavier than UK wires. --Wtshymanski 16:47, 15 December 2005 (UTC)
[edit] Move to conduit
If anyone ever writes electrical conduit this information should be put there: By comparison, most conduits are arranged so that their contents may be "pulled" or removed from an opening in the conduit, whereas conductors in cables are bundled tightly within the jacket, etc, as a unit. Cables undergo many stresses when being installed, that of tension, and the insulation being crushed at the bends of the temporary pulleys or at the bends of the raceway. Lubrications are used in conduits ahead of the cable to provide less friction, but these must be compatible with the nonmetallic materials of the cable -- a froth of vegetable-oil soap and water is good.
--Wtshymanski 16:26, 2 January 2006 (UTC)
[edit] Ampacity Derating
The derating factor is a major issue particularly in the field of circuit protection - protection against fire that is, to keep electrical circuits operational during a fire. This is of primary importance in nuclear reactors, whereby the idea is that during an accidental fire, operators in the control room must be able to switch off an operating reactor to prevent accidents. Vendors for fireproofing methods not only battle each other in terms of the price per m² installed, but also on the derating factor. Mitigation of the derating factor can be had by installing intumescent windows in one's fire barrier wrap, so that the electrical circuits can radiate extra photons off during normal operations. During a fire, of course, the intumescents simply shut. The first major passive fire protection scandal to hit the US nuclear industry dealt with a product whose bounding was not based on product certification. This has resulted in major remedial work in the US's 100 odd USNRC[1] licensed nuclear reactors.
[edit] Transformer?
I've been looking for something on Wikipedia about the big ac=>dc conversion blocks that are on the end or middle of many power cords. What in the world are these called? ~ Booyabazooka 20:21, 19 May 2006 (UTC)
- Ah, looks like I've answered my own question, with the discovery of the power brick article. There should probably be a reference to that, but I'm not sure where to include it. ~ Booyabazooka 20:33, 19 May 2006 (UTC)
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- See also Power supply; looks like we've got some merging to do. "Wall wart" is another common term for these things.
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- Atlant 20:38, 19 May 2006 (UTC)
