Business case for implementing two ergonomic interventions at an electric power utility

Area of Science:

• Occupational Health
• Ergonomics
• Electrical Engineering

Background:

• Overhead line work in the electric power industry presents significant ergonomic challenges.
• Many tasks require strength levels unattainable by over 99% of the general population.
• High risk factors for musculoskeletal disorders (MSDs) were identified in common line worker tasks.

Purpose of the Study:

• To evaluate and recommend ergonomic interventions for overhead line worker tasks.
• To identify interventions with the greatest potential for reducing MSD risk factors.
• To formulate a business case for implementing ergonomic solutions.

Main Methods:

• A 2-year collaborative study involving an electric utility, workers, and management.
• Evaluation and monitoring of 32 common line worker tasks.
• Selection of battery-operated press and cutter as key interventions based on risk reduction potential.

Main Results:

• Identified specific overhead tasks with extreme physical demands.
• Two interventions, battery-operated press and cutter, were prioritized for MSD risk reduction.
• A business case analysis demonstrated the financial viability of implementing these tools.

Conclusions:

• Ergonomic interventions, specifically battery-operated tools, can significantly mitigate MSD risks for overhead line workers.
• The implementation of these tools is supported by a strong business case, considering injury costs and operational efficiency.
• The utility committed over $300,000 for the purchase of battery-operated presses and cutters.