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Requirement to Earth Armoured Fibre optic cables

Ian Tindale
I have been asked a question by a client. Is there a requirement to Earth Armoured Fibre optic cabling? I know there is a requirement to earth standard SWA but nothing specific on fibre optic cable. I found an article relating to earthing but it was for the USA. Can anyone please give me some advice?


Kind regards

Ian
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    Where fibre optic cables have a metallic screen, then yes, this should be bonded at the point of connection. If you are going between buildings on different earth mats, it is conceivable that you have the wrong type of cable. Within the Electricity Supply Industry, we use Kevlar armoured cable (which is non-metallic) between sites as obviously we don’t want fault current down a thin fibre optic cable. in case you are wondering about the strength of Kevlar, it can be used for cut-resistant gloves as well as bullet proof vests. 


    Regards,


    Alan.
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  • 0
    Where fibre optic cables have a metallic screen, then yes, this should be bonded at the point of connection. If you are going between buildings on different earth mats, it is conceivable that you have the wrong type of cable. Within the Electricity Supply Industry, we use Kevlar armoured cable (which is non-metallic) between sites as obviously we don’t want fault current down a thin fibre optic cable. in case you are wondering about the strength of Kevlar, it can be used for cut-resistant gloves as well as bullet proof vests. 


    Regards,


    Alan.
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