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Multiple pilot cables in one duct

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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0 Former Community Member over 4 years ago

Harry Macdonald:

Depending on the situation, you could fall foul of requirements for Duty / Standby circuits on separate routes or even Main protection / Standby protection circuits.

A few clients want this sort of thing but I don't know of any general regulations requiring it.

Sure - but if you are segregating the power for resilience, then I'd expect the pilot wires to have the same segregation/duplication - I wouldn't usually expect (or wish to see) the relevant pilot wire separated significantly from the corresponding power cabling

Regards

OMS
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0 Former Community Member over 4 years ago

Harry Macdonald:

Depending on the situation, you could fall foul of requirements for Duty / Standby circuits on separate routes or even Main protection / Standby protection circuits.

A few clients want this sort of thing but I don't know of any general regulations requiring it.

Sure - but if you are segregating the power for resilience, then I'd expect the pilot wires to have the same segregation/duplication - I wouldn't usually expect (or wish to see) the relevant pilot wire separated significantly from the corresponding power cabling

Regards

OMS
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Multiple pilot cables in one duct

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