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Guest Message by DevFuse

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Surge on the coax between dish and house

Surge

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6 replies to this topic

#1 OFFLINE   Nhooker001

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Posted 04 September 2013 - 05:52 PM

We had lightning strike a tree between our dish and the house. The coax for the dish runs in the ground nearby. No issues on the power, but it killed both dvr's and the HDMI board on 1 TV. I feel lucky. :-) But we still have big trees and I am wondering whether a coax surge protector would be in order. Any ideas?

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#2 OFFLINE   jdspencer

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Posted 04 September 2013 - 07:07 PM

With a lightning strike that close, I don't believe there is any surge protector that would have stopped that surge.


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#3 OFFLINE   texasbrit

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Posted 04 September 2013 - 07:13 PM

Won't help you. Despite what surge protector manufacturers might tell you, there is nothing you can do to protect your equipment against a close-in strike, except a complete house protection system using lightning rods (think the creation of a "cone of silence" around the house and dish.)

Your dish should be correctly grounded, but that's mainly a safety issue. Surge protectors are OK protecting you against remotely-induced surges (such as the local electricity lines being hit by lightning, or electric surges when relays cut in and out) but not much good with close-in strikes. And many of them interfere with the signals to the dish which is why DirecTv does not approve them.



#4 OFFLINE   P Smith

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Posted 04 September 2013 - 07:49 PM

well, if the surge protector would take the hit and 'collapse' and burned out, it would be less damages to DVRs and TVs...

perhaps as second line of defense after first line is the metal pole with mounted dish; I would recommend spend a ten bucks when you'll see it on sale;

 

who knows,  if that's  a thousand joules taken by DVRs and TV (seems to me much less, if TS did not pronunciate _burning_ components/boards), then current surge protectors [3000+ joules] would definitely prevent such damages.



#5 OFFLINE   peds48

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Posted 04 September 2013 - 08:49 PM

 

perhaps as second line of defense after first line is the metal pole with mounted dish;

how a "pole mounted" dish would help?


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#6 OFFLINE   veryoldschool

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Posted 04 September 2013 - 10:04 PM

how a "pole mounted" dish would help?

the 2" pipe will be a ground. Add to this a ground block on the coax before it enters the structure, and that's about all you can do.


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#7 OFFLINE   peds48

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Posted 05 September 2013 - 09:23 PM

the 2" pipe will be a ground. 

 

as long as there is nothing attached to the dish.  otherwise is "fair game" for surge through coax


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