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Tweakers' Asylum Tweaks for systems, rooms and Do It Yourself (DIY) help. FAQ. |
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Tweakers' Asylum Tweaks for systems, rooms and Do It Yourself (DIY) help. FAQ. |
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In Reply to: RE: Why would reversing AC leads reduce hum in a component? posted by Tre' on February 11, 2017 at 13:02:45:
Of course anyone opening the chassis without unplugging the unit first is an idiot
That may well true but, if the fault puts hazardous voltages on the case and the earthing is imperfect (as with, say, an elderly amplifier with loose, rusted earth connections in which a 25-year-old capacitor has just failed), you'd need to be pretty savvy to avoid getting a shock.
Besides, wiring regulations are there as much to protect the idiot as the expert. Which I think is a good thing because we all do idiotic things from time to time.
Well, I know I did in my career even though I used to remind myself that almost every line in the Regs (US, "code") had cost somebody's life.
D
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Follow Ups
- RE: Why would reversing AC leads reduce hum in a component? - Ryelands 13:57:13 02/11/17 (5)
- RE: Why would reversing AC leads reduce hum in a component? - jea48 18:20:16 02/11/17 (4)
- RE: Why would reversing AC leads reduce hum in a component? - Ryelands 18:56:32 02/11/17 (3)
- RE: Why would reversing AC leads reduce hum in a component? - jea48 21:33:23 02/11/17 (2)
- RE: Why would reversing AC leads reduce hum in a component? - Ryelands 06:35:40 02/12/17 (1)
- RE: Why would reversing AC leads reduce hum in a component? - jea48 10:26:16 02/12/17 (0)
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