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30th 2008f November 2008
Posted in: Uncategorized
Chris J asked:
We’re told it’s better for the environment if we switch TVs, DVD players, Hi-Fi systems etc off at the plug socket rather than setting them to standby. Can doing this (perhaps several times a day) damage the electrical components inside them?
Renaldo
We’re told it’s better for the environment if we switch TVs, DVD players, Hi-Fi systems etc off at the plug socket rather than setting them to standby. Can doing this (perhaps several times a day) damage the electrical components inside them?
Renaldo
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Sure, by doing so you are introducing surges.
Comment by sparky3489 — December 3, 2008 @ 6:16 pm
Possibly, yes, but it isn’t from the voltage surges, it’s from the temperature cycling. The components will warm up and cool down, which also means they will expand and contract slightly every time you cycle the power. These small movements can eventually lead to failures that wouldn’t have occurred if you hadn’t cycled the power so often.
I once worked on systems with 1000’s of integrated circuits (ICs). We’d power them off over the weekend and then spend two days getting them all running again. We had a computer that also had 1000’s of ICs that we didn’t turn off; it never failed. We convinced the bosses to leave our stuff on over the weekend — and everything was working fine on Monday! They were never turned off again (except for installation of improvements).
Comment by sd_ducksoup — December 4, 2008 @ 12:16 am