"Baron" wrote in message ...

Phil Allison prodded the keyboard with:

KenO wrote:

A friend recently had her audio system damaged from an AC Power
Surge.


** AC power voltage surges damaging audio gear are so rare that I
cannot accept it as true without convincing evidence.

The DC power supply inside each piece of audio gear usually contains
a transformer, rectifier and filter electros - a combination that
eliminates AC voltage spikes/surges better than anything you can
possibly buy or build.

OTOH, the term "power surge" is regularly used to explain away
sudden failures in almost any electronic device - when the real
cause is simply a bad component.


.... Phil

+1
--
Best Regards:
Baron.




Many years ago I was working for a PA Hire company. One day we had a real
"power surge".
All the lights started getting really bright, then normal again, then back
to really bright etc. It was quite a weird experience.
I seem to recall we hit the emergency Power Off button in the warehouse
after measuring the mains outlets being well above 300v.

Most of the office equipment got fried - photocopier, printer etc. but no
humans or any of the audio gear were hurt.

We called in the electricity supply company, who (they said) discovered a
bad Mains Intake Neutral connection.
They paid compensation for all the fried gear, and we all saw the funny
side.




Gareth.