Course ID


This program describes some of the common safety hazards found in URD work environments and how to minimize the effects of electrical, atmospheric, and structural hazards. The program also presents a vault emergency situation and discusses safe rescue procedures.


To identify and describe safety hazards associated with URD line maintenance



Work Area Safety

  • Identify safety guidelines to follow before beginning work in an underground or URD work environment.
  • Describe methods for inspecting underground and URD work environments for physical hazards.

Tools and Test Equipment

  • Describe how to use the following: a pocket statiscope, a phasing tool, a remote cable spear, and a remote cable cutter.


  • Identify the excavation conditions that require shoring.
  • Determine when different types of shoring are required.
  • Describe safety guidelines for shoring trenches.
  • Identify some safe alternatives to shoring.

Atmospheric Testing

  • Identify atmospheric hazards that may be found in vaults and enclosed spaces.
  • Describe how to use atmospheric test devices.
  • Explain how to use ventilation equipment to supply fresh air to an enclosed area.

Vault Emergency

  • Describe general safety guidelines that should be followed in the event of a vault emergency.