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#27432 - 07/15/03 06:54 AM 4160V to ground on RG-6 Cable
sparky66wv Offline
Member
Registered: 11/17/00
Posts: 2232
Loc: West Virginia
While driving one day during a bad thunderstorm, I witnessed a branch from a tree land across all three phases of a 7200V pole. Beautiful blues, yellows, oranges and purples in the arc flash... (neat!)...

Anyway, I immediately pull over into the first driveway I see and call th PoCo. I give them GPS co-ordinates and figure that's about all I can do, so I tell the home owners that the PoCo has been notified.

Well, the thing continues to burn, a green branch in a downpour, mind you... but I got places to go, so I leave knowing the PoCo will be on their way and there's nothing I can do.

Turns out (after I left) the one phase OCPD never opened up, and the tree branch continued to be energized and burning until it burnt the conductor in two at which point it goes dancing all around until making contact with the TV Cable.

4160V (to ground) on RG-6 is not a good thing.

The first pix shows the first splitter in the house:



The second pix shows the RG-6 entrance into the house:

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#27433 - 07/15/03 08:04 AM Re: 4160V to ground on RG-6 Cable
ThinkGood Offline
Member
Registered: 08/07/02
Posts: 1081
Loc: Milwaukee, WI
They are fortunate that there is still a house standing!
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#27434 - 07/15/03 10:45 AM Re: 4160V to ground on RG-6 Cable
dougwells Offline


Member
Registered: 05/03/03
Posts: 1137
Loc: kamloops BC Canada
I don't see any bonding conducter or ground block installed for that RG6 IN bc canada we have to use a #6 AWG bond to ground
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#27435 - 07/15/03 06:06 PM Re: 4160V to ground on RG-6 Cable
PCBelarge Offline
Member
Registered: 06/08/03
Posts: 681
Loc: Dobbs Ferry, NY, USA
Sparky66wv
Thank you for the pictures of this. Very cool stuff.

Pierre
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#27436 - 07/17/03 10:00 PM Re: 4160V to ground on RG-6 Cable
A_Sparky_In_Training Offline
Junior Member
Registered: 04/30/03
Posts: 4
Loc: Connecticut
What happened to there TV,s/VCRS?
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#27437 - 07/18/03 03:54 AM Re: 4160V to ground on RG-6 Cable
sparky Offline
Member
Registered: 10/18/00
Posts: 5303
Welcome A_Sparky_In_Training ,
i'd wager the occupants are missin' the flinstones.............
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#27438 - 07/18/03 07:50 AM Re: 4160V to ground on RG-6 Cable
ThinkGood Offline
Member
Registered: 08/07/02
Posts: 1081
Loc: Milwaukee, WI
dougwells:

In the second photo, is that a grounding conductor coming from the meter pan? Looks like that got scorched also.

sparky66wv:

Is that a PVC plumbing pipe in the first photo?
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#27439 - 07/18/03 10:02 AM Re: 4160V to ground on RG-6 Cable
condenseddave Offline
Member
Registered: 03/30/02
Posts: 25
Loc: East Stroudsburg, PA USA
Think Good, that does appear to be a PVC water line in that photo.
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#27440 - 07/18/03 06:39 PM Re: 4160V to ground on RG-6 Cable
Trumpy Offline


Member
Registered: 07/05/02
Posts: 8211
Loc: SI,New Zealand
That splitter ain't looking too happy!.
Bet it went off with a bang!!.
Thanks for the pics, mate.
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