What is mechanical protection?

Examples are:

  • 50mm thick (or greater) concrete slab.
  • 25mm thick (or greater) ground contact treated timber.
  • Tough plastic slab of minimum dimensions 6mm thick x 150mm wide x 750mm long.

examples of installing mechanical protection in a shared trench - chorus

Please note:

  1. Mechanical protection shall be positioned to give maximum protection to the power cable or gas line from any digging activity.
  2. Refer to the table above for the power line clearances.