ECN Electrical Forum - Discussion Forums for Electricians, Inspectors and Related Professionals
ECN Shout Chat
Shout Box
Recent Posts
Air Compressor feeder conductor sizing
by Potseal. 01/15/18 09:08 PM
VDE 0100 to introduce AFCIs
by LongRunner. 01/15/18 11:38 AM
Under carpet cable?
by HotLine1. 01/15/18 09:57 AM
Any New Years Resolutions?
by Bill Addiss. 01/13/18 10:21 AM
diazed fuses
by RODALCO. 01/13/18 07:58 AM
New in the Gallery:
Housebilding DIY wiring
SE cable question
Who's Online Now
0 registered members (), 5 guests, and 11 spiders.
Key: Admin, Global Mod, Mod
Previous Thread
Next Thread
Print Thread
Rate Thread
4160V to ground on RG-6 Cable #27432
07/15/03 08:54 AM
07/15/03 08:54 AM
sparky66wv  Offline OP
Member
Joined: Nov 2000
Posts: 2,236
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
Re: 4160V to ground on RG-6 Cable #27433
07/15/03 10:04 AM
07/15/03 10:04 AM
T
ThinkGood  Offline
Member
Joined: Aug 2002
Posts: 1,081
Milwaukee, WI
They are fortunate that there is still a house standing!

Re: 4160V to ground on RG-6 Cable #27434
07/15/03 12:45 PM
07/15/03 12:45 PM
dougwells  Offline

Member
Joined: May 2003
Posts: 1,142
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

Re: 4160V to ground on RG-6 Cable #27435
07/15/03 08:06 PM
07/15/03 08:06 PM
P
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
Re: 4160V to ground on RG-6 Cable #27436
07/18/03 12:00 AM
07/18/03 12:00 AM
A
A_Sparky_In_Training  Offline
Junior Member
Joined: Apr 2003
Posts: 4
Connecticut
What happened to there TV,s/VCRS?

Re: 4160V to ground on RG-6 Cable #27437
07/18/03 05:54 AM
07/18/03 05:54 AM
S
sparky  Offline
Member
Joined: Oct 2000
Posts: 5,340
Welcome A_Sparky_In_Training ,
i'd wager the occupants are missin' the flinstones............. [Linked Image]

Re: 4160V to ground on RG-6 Cable #27438
07/18/03 09:50 AM
07/18/03 09:50 AM
T
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?

Re: 4160V to ground on RG-6 Cable #27439
07/18/03 12:02 PM
07/18/03 12:02 PM
C
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.
Re: 4160V to ground on RG-6 Cable #27440
07/18/03 08:39 PM
07/18/03 08:39 PM
Trumpy  Offline

Member
Joined: Jul 2002
Posts: 8,231
SI,New Zealand
That splitter ain't looking too happy!.
Bet it went off with a bang!!. [Linked Image]
Thanks for the pics, mate.


Featured:

2017 Master Electrician Exam Preparation Combos
2017 NEC Electrician
Exam Prep Combos:
Master / Journeyman

 

Member Spotlight
MarkC10
MarkC10
CA, Inland Empire
Posts: 43
Joined: September 2013
Show All Member Profiles 
Top Posters(30 Days)
sparky 24
Admin 19
Potseal 13
Popular Topics(Views)
243,508 Are you busy
180,293 Re: Forum
170,798 Need opinion
Powered by UBB.threads™ PHP Forum Software 7.6.1
(Release build 20180101)
Page Time: 0.016s Queries: 14 (0.004s) Memory: 1.0001 MB (Peak: 1.1672 MB) Zlib enabled. Server Time: 2018-01-16 09:56:45 UTC