Installed the whole-house surge arrester, now what? - AVS Forum
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post #1 of 5 Old 02-05-2007, 03:34 PM - Thread Starter
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Following Chu Gai's advice (Thanks!) , I had one installed at the electrical panel. Do I still need to have a multiple-outlet surge protector strip at the wall plug, so that all my equipment can be plugged into that strip? Or is that overkill? Should I feel reasonably safe without using any other surge suppresion at the wall outlet?

On another note, I do need a UPS to protect my DLP front projector and TV, for lamp cool-down. I'd rather over-protect than under, my budget for this UPS is $300. Any recommendation?

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post #2 of 5 Old 02-05-2007, 04:24 PM
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I would install a second level of protection at the equipment rack or AV equipment location (plug in unit?). Any let through voltage from the whole house suppressor can be further mitigated by a second level of protection.

If you are not prone to power outages, why invest in something which may never be used. I have had an expensive front projector for about 4 years without any problems. Besides, many of the cheap UPS units produce a horrible output waveform, putting more noise and harmonic garbage on the power system than necessary.

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post #3 of 5 Old 02-06-2007, 08:00 AM
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The panel or meter based products work to ground surges to earth which I presume was about 10 feet away. This provides excellent protection by grounding the effects of potentially deadly surges before they can get into your home and then find their own, unique ways to ground like your microwave, Plasma, toaster, etc. However, there is still going to be some voltage let-through which can be effectively dealt with by point-of-use devices such as those from Monster, Panamax, Belkin, Tripplite, APC, or whomever. They can further throttle down the residuals to essentially harmless levels.

You haven't indicated if you also dealt with your incoming cable and phone lines. If not, that's also a point of ingress and it's not terribly expensive to buy and DIY. If you need examples, ask.

IMO, if you're concerned about bulb life as a result of frequent power outages, then you'll need to determine things like power draw, run time, and so forth in order to be able to source a UPS that'll handle the job. As AVDoogie notes, questions should be asked from the vendor as to how the unit operates in a pass-through mode to get a handle on whether signficant distortion or AC waveform alteration occurs. You might find that the costs outweigh bulb replacement but that's a personal call on your part.

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post #4 of 5 Old 02-14-2007, 11:22 AM - Thread Starter
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I'm in the processing of buying one of those in-line supressor for the coax line from my Dish satellite. I don't have any phone line connected to my gear. I plan on buying either a Brick Wall or Zerosurge unit (probably just a 2 outlet version), then plug a multiple-plug strip into it, and all my AV gear into that strip.

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post #5 of 5 Old 02-15-2007, 06:18 AM
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Some in-line suppessors are designed so that they've got a grounding block to which you attach a wire that then goes to your grounding rod. There are many types and the following is a picture that illustrates just one of them.



With respect to the Zerosurge type units, ask the company how the ground is protected from a surge that travels up that way. Assuming of course that you haven't gone whole house. I'd be curious as to their answer.

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