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Joined: Jan 2005
Posts: 15,379 Likes: 13
Moderator-Vertical, Vodavi, 1A2, Outside Wire
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Moderator-Vertical, Vodavi, 1A2, Outside Wire
Joined: Jan 2005
Posts: 15,379 Likes: 13 |
Went on a service call for a system completely down. Found the power supply blown and this little gem (the #6 ground wire from Verizon's terminal to the building frame above). This is obviously due to a sustained power cross with the cable sheath, but the Verizon 'tech' who came out insisted that it was just due to a power surge. Note that the gray insulation is completely melted off and charred. To make matters worse, this marvel of knowledge fixed it by replacing it with a piece of #10 for a 100 pair BET. ![[Linked Image from i98.photobucket.com]](https://i98.photobucket.com/albums/l268/ev607797/Surgicenter.jpg)
Ed Vaughn, MBSWWYPBX
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Joined: Jun 2006
Posts: 8,732 Likes: 2
Moderator-Nortel, Computers, General
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Moderator-Nortel, Computers, General
Joined: Jun 2006
Posts: 8,732 Likes: 2 |
I assume you have Verizon on speed dial for the next "surge".
Scientists say that the universe is made up of Protons, Neutron & Electrons. They forgot "Morons".
Dave. (CTUB) Canadian Techs Use Bix!
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Joined: Oct 2009
Posts: 410
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Joined: Oct 2009
Posts: 410 |
Yikes. Two stupid questions:
1-Did any of the protectors melt down?
2-Did the rocket scientist make any effort to determine if the actual fault had been found, or will this happen again in the next high wind?
Jim
**************************************************
Speaking from a secure undisclosed location.
Edit: The first question was stupid - if the foreign voltage was on the sheath, the protectors never had to function. I haven't had enough coffee yet.
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Joined: Jul 2010
Posts: 61
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Joined: Jul 2010
Posts: 61 |
I'll make a bet that they lost the neutral for the incoming power and the telco ground was really a ground loop waiting for current.
I'm a black & white type of guy.....the only grey in my life is the hair on my head!
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Joined: Dec 2004
Posts: 1,106
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Joined: Dec 2004
Posts: 1,106 |
Looks like it blew the jack right off that network cable!
Trump 2020
Proud 1 star member.
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Joined: Dec 2005
Posts: 818
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Joined: Dec 2005
Posts: 818 |
I had a customer a while back get hit by lightning. There were burns on the system, there was a fire in the building, and all equipment in the area was ruined....they still did not believe the damage to the telephone system was from the lightning.....
Steve
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Joined: May 2010
Posts: 86
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Joined: May 2010
Posts: 86 |
I have seen similar to this in the past and every time it was 7,200 volts that came down on the tel. cable and energized it, due to a car accident. the last one I had a Vodavi DHS in and I always use ITWLINX secondary lightning Protection. the customer told me fire was coming out of the two fuzes (SCP-9F). It melted the corner of the KSU cover. My tech took the lightning protection out and bridge clipped it and the system came up and was not hurt. I was at that site a year ago and the same system is still there.
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