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Multiple pilot cables in one duct

vici
Hi everyone,


I wondered if there are any issues in installing more than one pilot cable in a duct and I would like to seek advice on standards and good practice to follow. Pilot cables in questions are of copper type, for 11kV circuits.

I'd be tempted to think about criticalities in cable pulling, but I wondered if there are additional considerations to add.


Thank you

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    Probably nothing regs wise, but are they all going to the same place and is there any risk of needing to re-pull one while others are in use. I presume the voltages and currents on the pilots are modest, and normal thermal grouping problems are not dominant concern.


    "Pilot" can mean different things - are you looking at twisted pairs and high speed data, or just to complete a230V or 24V loop to energise a contactor sort of things? There may be EMC considerations if there are high speed data signals to be co-located with things that go thump.

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  • 0
    Probably nothing regs wise, but are they all going to the same place and is there any risk of needing to re-pull one while others are in use. I presume the voltages and currents on the pilots are modest, and normal thermal grouping problems are not dominant concern.


    "Pilot" can mean different things - are you looking at twisted pairs and high speed data, or just to complete a230V or 24V loop to energise a contactor sort of things? There may be EMC considerations if there are high speed data signals to be co-located with things that go thump.

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