Power Cable & FO Cable in Single Conduit
Power Cable & FO Cable in Single Conduit
(OP)
Is it allowed to run 220V power cable and Fiber Optic Comminication Cable together in a single conduit ?
When was the last time you drove down the highway without seeing a commercial truck hauling goods?
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Power Cable & FO Cable in Single Conduit
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RE: Power Cable & FO Cable in Single Conduit
RE: Power Cable & FO Cable in Single Conduit
RE: Power Cable & FO Cable in Single Conduit
We don't see a lot of conduit in this country, and most of what we have is small diameter (20mm / 25mm) and wouldn't be used for a fibre route.
RE: Power Cable & FO Cable in Single Conduit
RE: Power Cable & FO Cable in Single Conduit
RE: Power Cable & FO Cable in Single Conduit
770.110(B)(2)indirectly permits non-conductive fiber cables to be installed in the same raceway with power conductors.
RE: Power Cable & FO Cable in Single Conduit
Please don't forget that these fibers are used for critical applications such as substation to substation communication, SCADA, Feeder Differential protection etc. This is a common practice, even in KSA (Kingdom of Saudi Arabia??). By the same token, I do not see any reason, why the same conduit cannot be used, unless there is some abnormal temperature rise issues are the limitation.
RE: Power Cable & FO Cable in Single Conduit
To be honest we rarely see conduit used in the UK except for indoor small / medium power installations in factories and commercial premises. The majority of external work and heavy industrial applications use single wire armoured cables. Most fibre I see in the UK is either wire armoured, or kevlar armoured in applications where it's desirable to avoid metallic interconnection of the two locations, because that follows typical British practice. If the fibre in question was non-armoured and it was possible to stay within bending radius constraints then I guess it could be routed through conduit.
krisys - it is true that fibre itself is immune to electro-magnetic interference, but that's not always true of the overall FO cable where metal wire, braid and tape armours are all possible construction variants. Metallic armour can introduce touch and transfer potentials if only one end is earthed, or provide a path for circulating currents if both ends of the armour are earthed.