Forums Forums Traffic Signals High pressure jetting in duct with cables present

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  • #3308
    Chris Pearson
    Participant

    Had to do it a few times – just make sure they dont over-do it on the pressure and that the cables arent 100 years old. It would take a fair bit of concentrated water pressure on the PVC to cause significant damage and a competent operator should keep things okay.

    Depending on the age of the cable, post-testing will probably be overkill – the last PI should give you the cable test results to make an informed decision/guess whether it is necessary or not.

    #1079
    Mark Stevens
    Participant

    Has anyone had any problems or cable damage result from using high pressure water jetting in ducting with cables present while trying to clear a blockage?

    I do plan to switch off the signals so the cables aren’t live and am considering getting them tested before and after.

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