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- Message-ID: <345@blars.UUCP>
- Date: Sat, 14 Nov 1992 16:16:40 GMT
- Newsgroups: misc.consumers.house
- Subject: Re: Surge protection - how does it work?
- References: <1992Nov11.153310.16613@cbfsb.cb.att.com> <1992Nov11.180523.20266@porthos.cc.bellcore.com> <BxKnAD.Its.2@cs.cmu.edu>
- Reply-To: blarson@usc.edu
- From: blarson@blars.UUCP
- Lines: 29
-
- In article <BxKnAD.Its.2@cs.cmu.edu> goddard+@cs.cmu.edu (Nigel Goddard) writes:
- >I have a surge protected outlet in my study. I took it apart
- >to figure out how it works. I had assumed it was like GFI but
- >I find it isn't (it doesn't have line and load).
- >I think surge protection works by shorting the circuit if a voltage
- >spike occurs.
-
- Basicly correct. It's some form of voltage dependant resistor that has
- a resistance that drops dramaticly when the voltage exceeds a
- threshold.
-
- >If my idea is correct, then it would seem that any other
- >outlet on the same circuit as my surge protected outlet is also
- >surge protected. Is this correct?
-
- Maybe.
-
- If the source of the surge is beteen the protector and the load you
- want protected, don't expect your protector to be worth much. If the
- surge is on the other side of the protector, it may help quite a bit.
- Sources of surges include electric motors and induction from lightning
- induced into your wiring (can show up on any run of wire more than a
- foot or so).
-
- --
- blarson@usc.edu usc!blarson blarson@zog
- C news and rn for os9/68k!
- I think I hear a scream. A great many dramatic situations begin with a scream.
- -- Barbarella
-