> We used to discuss this topic at work. Someone brought out the fact that a > power strip or some other device with a surge protector built in should cover > everything on that particular leg. It's a parallel circuit. (I'm not > defending this).
You're right in not defending that stance. It might cover everything on that leg if_and_only_if the leg in question was an ideal conductor and was immune to EM fields. Real life wiring just doesn't work that way. Mark AD5SS On Fri, Feb 1, 2013 at 11:59 AM, Richard Fjeld <rpfj...@embarqmail.com> wrote: > We used to discuss this topic at work. Someone brought out the fact that a > power strip or some other device with a surge protector built in should cover > everything on that particular leg. It's a parallel circuit. (I'm not > defending this). > > Also, it was brought out that MOV surge protectors are for a very short > duration spike, of which lightning is not. Many have a fuse in series with > the MOV for that reason. While this may come across as negative, surge > protectors have their place. > > Back, circa late 70's- 80's, a momentary open on the power caused a high > voltage spike on the AC. It took out hundreds, or more, TV's and Ham Radio > electronics in that neighborhood. I built a box with an AC relay that locks > up through it's own contacts. I have two outlet boxes attached to it. I have > a momentary button to bring the relay up, and one to release it. If a 'hit' > should occur on the power the relay will release and open the AC circuit to > my equipment. Should the AC restore with high voltage, my equipment plugged > into it will not be connected. I have a UPS to feed my K3 power supply so I > can shut the K3 down normally. > > Rich, n0ce > ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
