Working near cranes, excavators and electrical equipment

Whenever machinery is being used near electrical equipment, all workers in the vicinity shall be instructed to remain clear and avoid contact with the frame of the equipment, hoisting lines, the hoisted load, and anything else contacting the equipment. Power lines can hang as low as 4 m from the ground.

When working near electrical equipment, "Keep clear - working near electrical lines and apparatus" signs must be displayed on the exterior of machines. A notice giving the following shall be posted in the cabs of machines working near electrical equipment:

The limits of approach to overhead power lines for persons and equipment.
The machine shall not be moved near electrical equipment without the aid of a signaller.
Maximum height and reach of the machine with the peripheral devices fully extended shall be posted in view of the operator of the machine.

A signaller shall direct the moving of equipment near overhead power lines or other electrical equipment. The signaller shall be identified by a bright traffic vest and/or cuff. The designated signaller shall not be assigned any other duties during the times when the equipment is near the limits of approach. The operator and the signaller should know all crane and hoist hand signals.

The important consideration in signalling is that the signaller and operator understand each other completely and communicate effectively. The signaller shall know the limits of approach distances to overhead lines and ensure that at no time is there a Limit of Approach encroachment.

Table of contents Last updated: September 2021

EPCOR customer service:
Edmonton: 780-310-4300
Toll-free: 1-800-667-2345

Electrical contact:
Fire/threat to life call 911
Otherwise call EPCOR power trouble: 780-412-4500

Disclaimer

EPCOR Distribution & Transmission Inc. (EPCOR) is responsible for the delivery of electricity to customers in Edmonton and surrounding areas, while being fully committed to the protection of the environment and the health and safety of our employees and customers.

This guide provides information to employers and contractors regarding safe work practices in relation to EPCOR power facilities. Employers and contractors have responsibilities under the Alberta Occupational Health and Safety (Alberta OHS) Act, Code, and Regulation. When there is a conflict between this document and any bylaws, legislation, or regulation the relevant law prevails.

Any reliance placed on this information is strictly at your own risk. EPCOR does not assume any responsibility or liability for any action, loss or damage that arises out of, or is in connection with the information contained in this guide.

Alberta safety legislation assigns responsibilities to the utility owner, the contractor, the employer, and the worker, to ensure that work is carried out in a safe manner. All work related hazards must be identified by the employer to the workers. Only competent workers are allowed to work without direct supervision. All work shall be carried out in accordance with applicable legislation.

View our guidelines for Working in Close Proximity to Electrical Equipment.