Forums Forums Traffic Signals High pressure jetting in duct with cables present Reply To: High pressure jetting in duct with cables present

#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.