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Fibre cable conductivity

Samfisher

No idea where to post this so I put it here since it's kind of...networking related :P

 

So I'm getting fibre to my house soon, was wondering how conductive fibre cables are in terms of protection against lightning strikes.  On my old copper line hooked up to the phone cable, even with the power cable plugged out and turned off, it still gets burnt if there's a thunderstorm cos it burns through the ADSL port.

 

Is fibre the same where it conducts electricity in the same way, or can I get away with plugging my devices to a surge protector (assuming it will always break the circuit before damaging devices) and just leaving the fibre in?

QUOTE ME IN A REPLY SO I CAN SEE THE NOTIFICATION!

When there is no danger of failure there is no pleasure in success.

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No idea where to post this so I put it here since it's kind of...networking related :P

 

So I'm getting fibre to my house soon, was wondering how conductive fibre cables are in terms of protection against lightning strikes.  On my old copper line hooked up to the phone cable, even with the power cable plugged out and turned off, it still gets burnt if there's a thunderstorm cos it burns through the ADSL port.

 

Is fibre the same where it conducts electricity in the same way, or can I get away with plugging my devices to a surge protector (assuming it will always break the circuit before damaging devices) and just leaving the fibre in?

Won't be very conductive at all if it is true fiber cable they're running - fiber is normally glass or plastic core. 

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The fibre cable dosen't conduct any electricity, it only reflects the light from point to point. So you don't need to be worry about it. ;)

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No idea where to post this so I put it here since it's kind of...networking related :P

 

So I'm getting fibre to my house soon, was wondering how conductive fibre cables are in terms of protection against lightning strikes.  On my old copper line hooked up to the phone cable, even with the power cable plugged out and turned off, it still gets burnt if there's a thunderstorm cos it burns through the ADSL port.

 

Is fibre the same where it conducts electricity in the same way, or can I get away with plugging my devices to a surge protector (assuming it will always break the circuit before damaging devices) and just leaving the fibre in?

The shielding inside the cable "MAY" be metal but unlikely. Even if it was it would still be much less conductive than copper

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The fibre cable dosen't conduct any electricity, it only reflects the light from point to point. So you don't need to be worry about it. ;)

 

So I'm good just connecting the router and modem to the surge protector and leaving the fibre in at all times? :D

QUOTE ME IN A REPLY SO I CAN SEE THE NOTIFICATION!

When there is no danger of failure there is no pleasure in success.

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The armour can be conductive, properly ground your cables and you should be ok. 

 

http://www.cablinginstall.com/articles/print/volume-7/issue-12/crosstalk-feedback/ask-donna/why-ground-fiber-optic-cable.html

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Average fiber optic cable is made out of Silica or Glass. Most likely Silica it's less expensive. It has 3 layers Core, Cladding and a Buffer (all made out of Silica or Glass), it can have more layers depending on the type of the cable and it can also hold metal if it's a self carrying cable. But that's very unlikely.

 

Anything can be hit by a lightning if it's the most conductive material in a certain area. You can place a plastic toy in a middle of nowhere and since it's the most conductive in that area, it would be hit.

 

That's why you want to ground all the devices, even the cable.

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Thanks for the many replies!  I found an image that shows what my ISP does for installation.  Where do I ground the fibre cable?  Mine is the aerial cable installation.

 

maxis-fibre-sdu-standard-installation1.p

QUOTE ME IN A REPLY SO I CAN SEE THE NOTIFICATION!

When there is no danger of failure there is no pleasure in success.

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Thanks for the many replies!  I found an image that shows what my ISP does for installation.  Where do I ground the fibre cable?  Mine is the aerial cable installation.

 

maxis-fibre-sdu-standard-installation1.p

Your ISP should handle grounding, give them a call and ask for information. 

CPU I7 - 4720HQ RAM 2 x 8GB • GPU Nvidia GTX 850M Storage 250GB 850 EVO - 1TB Seagate Hybrid
Keyboard CM Storm QuickFire Rapid-I (MX brown) & Pok3r (MX clear) • Mouse Logitech G502 • Sound Audio-Technica ATH-M50X • OS Windows 10 Pro - Linux Arch 
Storage Asustor AS7004T

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