Safety in Underground Line Maintenance

Work Area Safety Describe personal safety equipment commonly used in underground and URD work areas. Describe procedures for establishing and maintaining safe working conditions. Describe procedures for safely identifying circuits. Tools and Test Equipment Describe the use of a pocket statiscope. Describe the use of a phasing tool. Describe the use of a remote cable spear. Describe the use of a remote cable cutter. Shoring Identify excavation conditions that require shoring. Describe the requirements for safely shoring trenches. List some safe alternatives to shoring. Atmospheric Testing Identify atmospheric hazards that may be found in vaults and enclosed spaces. Describe or demonstrate how to use an atmospheric test device to determine if the atmosphere in a vault is safe to breathe. Explain how to use ventilation equipment to supply fresh air to an enclosed area. Respiratory Protection Describe the following types of respirators: half mask with cartridge filters self-contained breathing apparatus and demand airline respirator. Describe how each respirator is inspected put on and adjusted for proper fit. Vault Emergency Describe general safety considerations associated with responding to a vault emergency involving an unconscious worker.