Originally Posted By: Greg Fretwell
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Perhaps you should look closer to the coax connectors going into interconnected data processing equipment. There is a plastic or fiber bushing under the connector. It is grounded at the controller end but the whole DC ground is floating in a terminal. It is isolated from AC/frame ground. DC ground is also isolated in your TV.
You really want a single grounding point.
If you are trying to stop the short duration transients that fry electronics you will find they are ramping up a lot faster than 60hz. That is why the language "straight" and "short" is used.
Most stuff is fairly hardy, mostly because MOVs are cheap and people get away with terrible grounding practices (from an electronic standpoint) but if you are serious about protecting your stuff you will be bonding all of your protectors to a single point ground, not the first available grounded point in the GE system.
Lightning protection was a big part of what I did for my last 15 years at IBM. I am right across the alley from you and we have a thunderstorm almost every day here too in the summer. People don't want to close the store/office/bank and unplug everything every afternoon. We had to learn what it takes to keep them going. When you are running Cat5 and Coax through a strip mall with 4 separate electrical services and all connected to a central server you start to think a little different about bonding and grounding. It certainly isn't just what will clear a fault.