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#27432 - 07/15/03 09:54 AM 4160V to ground on RG-6 Cable  
sparky66wv  Offline
Member
Joined: Nov 2000
Posts: 2,232
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:

[Linked Image]

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

[Linked Image]


-Virgil
Residential/Commercial Inspector
5 Star Inspections
Member IAEI

Work Gear for Electricians and the Trades

#27433 - 07/15/03 11:04 AM Re: 4160V to ground on RG-6 Cable  
ThinkGood  Offline
Member
Joined: Aug 2002
Posts: 1,081
Milwaukee, WI
They are fortunate that there is still a house standing!


#27434 - 07/15/03 01:45 PM Re: 4160V to ground on RG-6 Cable  
dougwells  Offline


Member
Joined: May 2003
Posts: 1,137
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


#27435 - 07/15/03 09:06 PM Re: 4160V to ground on RG-6 Cable  
PCBelarge  Offline
Member
Joined: Jun 2003
Posts: 681
Dobbs Ferry, NY, USA
Sparky66wv
Thank you for the pictures of this. Very cool stuff.

Pierre


Pierre Belarge

#27436 - 07/18/03 01:00 AM Re: 4160V to ground on RG-6 Cable  
A_Sparky_In_Training  Offline
Junior Member
Joined: Apr 2003
Posts: 4
Connecticut
What happened to there TV,s/VCRS?


#27437 - 07/18/03 06:54 AM Re: 4160V to ground on RG-6 Cable  
sparky  Offline
Member
Joined: Oct 2000
Posts: 5,303
Welcome A_Sparky_In_Training ,
i'd wager the occupants are missin' the flinstones............. [Linked Image]


#27438 - 07/18/03 10:50 AM Re: 4160V to ground on RG-6 Cable  
ThinkGood  Offline
Member
Joined: Aug 2002
Posts: 1,081
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?


#27439 - 07/18/03 01:02 PM Re: 4160V to ground on RG-6 Cable  
condenseddave  Offline
Member
Joined: Mar 2002
Posts: 25
East Stroudsburg, PA USA
Think Good, that does appear to be a PVC water line in that photo.


It's all about integrity.

#27440 - 07/18/03 09:39 PM Re: 4160V to ground on RG-6 Cable  
Trumpy  Offline


Member
Joined: Jul 2002
Posts: 8,211
SI,New Zealand
That splitter ain't looking too happy!.
Bet it went off with a bang!!. [Linked Image]
Thanks for the pics, mate.


Let's face it, these days if you're not young, you're old - Red Green grin


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