bogey780
join:2004-03-19
Here | reply to NOCMan
Re: Does verizon need to ground fiber?
Fiber may be different from POTS but all telephone interfaces have carbon or gas tubes in there specifically with lightning protection in mind. The ground is definitely there in those for lightning. |
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cdru
Go Colts
Premium,MVM
join:2003-05-14
Fort Wayne, IN
1 edit | reply to David
You aren't grounding the fiber. You are grounding the CATV and networking wiring for the house. TVs, VCRs, etc are notorious for leaking current to the shield of coax. By grounding the system, you give the current a path to ground with less resistance then what a human standing on carpet twisting a connector onto the wall jack would have.
In the event of a more severe problem, like a true electrical short instead of just leaking, the ground also should also be enough to trip a breaker.
The ground is there as a safety precaution for you, not the equipment or the incoming line. It will also do little or nothing for lightening protection.
The problem with the NY installs (and probably many other places) is that the grounding is not done up to code if it was even done at all. There are specific guidelines by the NEC as to how you can and can't ground something. Just finding a metal screw on the side of the meter pan, a piece of metal strapping, etc is not up to code. Splicing the ground into another ground wire I believe is generally not up to code. Just driving in a ground rod and not bonding it to the main ground rod is not permitted. |
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NOCMan
Verizon Fios User
Premium
join:2004-09-30
Flower Mound, TX
| reply to bogey780
Grounding is not to protect from being hit by lightning. It's to dissipate the static that could attract lightning and give a low resistance path in case of a electrical short.
I learned that building a home weather station when I had to put the mast up I checked what was needed for lightning protection. |
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tp0d
yabbazooie
Premium
join:2001-02-13
Carnegie, PA
clubs:
1 edit | reply to bogey780
yea, #10 to the ground rod at min... I have #6 here from the main box to the rod, vz just put a bug on it for the fios with #12
so the nec code is wrong?
-j |
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bogey780
join:2004-03-19
Here | reply to tp0d
It's not the service voltage. It's foreign voltage (lightning and utility). The gauge usually allows only a certain amount of protection. Meaning the more services protected the higher the gauge needed. 10ga is the way to go. |
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tp0d
yabbazooie
Premium
join:2001-02-13
Carnegie, PA
clubs:
 ·Verizon FIOS
1 edit | reply to Pathfinder
said by Pathfinder  :Most codes require ground wire to be at least 10 guage. Just checked again, says 12 awg on jacket, I was wrong...
I also checked out the NEC 2008.. they specify a minimum of 14awg for fiber and comms circuits. Since the input voltage and current is relatively low, I would think a #12 or 14 would be sufficient..
nec2008 quoted above... 770.100.A.3 on the first pic, and 800.100.A.3 on the 2nd
-j
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if it aint broke, tweak it!!
currently on FiOS (kick aZZ!) |
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David
No,there is another.
Premium,VIP
join:2002-05-30
Granite City, IL
clubs:
 ·DIRECTV
 ·magicjack.com
 ·AT&T Midwest
| reply to Maggs
said by Maggs :Since fiber is light signals does Verizon actually have to ground it. That's the burning question on my mind, can you really "ground" fiber? I could see power grounding, that just makes common sense, but grounding fiber?
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If you have a topic in the direct forum please reply to it or a post of mine, I get a notification when you do this.
Koetting Ford, Granite City, illinois... YOU'RE FIRED!!
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Pathfinder
Dazed Confused
Premium
join:2000-03-26
Mount Vernon, NY | reply to tp0d
Most codes require ground wire to be at least 10 guage. |
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tp0d
yabbazooie
Premium
join:2001-02-13
Carnegie, PA
clubs:
·Verizon FIOS
1 edit | reply to paulme
Must be the NY techs...
When the techs were here doing my install, they ran a #14 ground wire outside and bugged it onto my ground rod wiring. I`m not an electrician, but it looks pretty durn good to me.
no problems with getting zapped either LoL
-j
ps... somehows I think the NY PUC was prodded into investigating this... *cough* cv *cough*
edit--- just looked at the photos... there is some REAL shoddy work done in the photos... hard to believe thats a union guy, but anythings possible |
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paulme
join:2007-11-06
Kirkland, WA
·Verizon FIOS
| reply to Maggs
The ONT converts the light signal to something that your home can use:
Coax - for TV and/or internet.
rj45 - for internet.
rj11 - for phone.
Each of these require power. The ONT is providing it through the power connection made in the house its attached to. Before switching to fios, the power would have been provided by the service provider of each of these.
I honestly don't get why they don't ground it to the house's power, rather than doing this external grounding. |
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Pathfinder
Dazed Confused
Premium
join:2000-03-26
Mount Vernon, NY
·Verizon Online DSL
| reply to Maggs
All ONTs in New York are installed by union techs.
This is the most telling sentence.
said by article :
Industry analysts say this issue is probably more political than it is an issue of public safety. And the point of being political is to chip away at a competitor's reputation.
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NetAdmin
CCNA
join:2008-05-22
| reply to Maggs
said by Maggs :Since fiber is light signals does Verizon actually have to ground it. Apparently so...
NYDPS officials say the grounding issue poses a "potential safety risk to the premises and its occupants" in the case of FiOS homes, according to one report sent to Verizon two years ago. "We tentatively conclude that FiOS may form an electrically conductive path both to the outside world as well as other electrically powered devices inside the building," that report stated. From »www.lightreading.com/document.as···d=162405
If there was union contractors on this they would have done better. As long as people are installing it, people will take shortcuts, union or not. Union workers are not immune from doing crappy jobs.
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Eleven years of carrying The Clue Bat... |
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Maggs
Premium
join:2002-11-29
Woodside, NY | Since fiber is light signals does Verizon actually have to ground it. It's passive ON. If there was union contractors on this they would have done better.
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NIL ILLEGITIMUS CARBORUNDUM! |
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