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Health and Safety Guide


 

SECTION B2: Electrical Safety-Related Work Practices


Introduction

    The purpose of an Electrical Safety-Related Work Practices Program is to protect workers from the hazards of exposed electrical circuits through training, procedures such as lockout/tagout, and the use of personal protective equipment.

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Scope and Application

    The Occupational Safety and Health Administration (OSHA) requires that Electrical Safety-Related Work Practices apply to those who work near exposed electrical circuits that operate at 50 volts or more. Occupations generally affected by this regulation include, but are not limited to:

    • Electrical and electronic engineers
    • Electrical and electronic equipment assemblers
    • Electrical and electronic technicians
    • Electricians
    • Industrial machine operators
    • Mechanics and repairers
    • Painters
    • Riggers
    • Stationary engineers
    • Welders
    • Supervisors of the groups listed above

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Program Description

    Under this rule, OSHA separates workers into two broad groups, "qualified persons" and "unqualified persons". Qualified persons are those who have been trained in avoiding the electrical hazards of working with exposed energized parts, while unqualified persons have little such training. Supervisors should be aware that the training requirements differ for each group, as do the tasks each is allowed to perform.

    Training

    Training is required for anyone who faces a risk of electric shock while performing normal job duties. In addition to training in safety-related work practices, unqualified persons should be trained in the inherent hazards of electricity. Qualified persons should receive additional training that allows them to distinguish live parts from other electrical equipment, measure the voltage of exposed live parts, and determine minimum clearance distances.

    Selection and Use of Work Practices

    Safety-related work practices should be used to prevent electric shock or other injuries that may result from contact with an energized circuit. Live parts should be deenergized before work begins unless it introduces additional hazards or is unfeasible to do so. Circuits should not be deenergized if it would cause the interruption of life support equipment, deactivation of emergency alarm systems, shutdown of ventilation equipment in hazardous locations, or removal of illumination for an area.

    The Princeton University Program for the Control of Hazardous Energy, known as Lockout/Tagout, should be used to isolate deenergized equipment and circuits (see Section B3, Lockout/Tagout). Only qualified persons may apply lockout or tagout procedures and test circuits to verify deenergization.

    Special procedures should be followed whenever work is done near energized equipment and circuits, especially overhead power lines. Consideration should be given to housekeeping procedures, lighting, and the conductivity of materials and equipment. The hazards of confined spaces should be considered when work is done in manholes or underground vaults.

    Use of Equipment

    Safety-related work practices should be followed when using cord and plug connected equipment and extension cords. Equipment should not be raised or lowered by its electrical cords. All electrical equipment should be inspected before use and, if found defective, removed from service until repaired.

    The environment in which electrical equipment is to be used should also be considered. Ground Fault Circuit Interrupters (GFCI) or low voltage tools should be used in conductive work locations. Special equipment may also be required in areas that may contain flammable or ignitable material or vapors.

    Safeguards for Personnel Protection

    Personal protective equipment, such as nonconductive head protection, eye and face protection, and insulating gloves, may be necessary for protection against electrical hazards (see Section B4, Personal Protective Equipment).

    Insulated tools and handling equipment, such as protective shields, barriers, or insulating materials, should be used when working near exposed electrical conductors.

    Safety signs, tags, or barricades can be used to warn and protect workers. When these techniques do not provide sufficient protection, an attendant should be used.

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Roles and Responsibilities

    Department

    • Provide specific training for qualified and unqualified workers.
    • Provide and maintain necessary protective equipment and materials.
    • Develop and maintain written Electrical Safety-Related Work Practices.


    Supervisors

    • Ensure workers receive training appropriate to their assigned tasks.
    • Ensure workers are provided with and use protective equipment and materials.


    EHS

    • Provide general training.
    • Provide assistance with evaluation of electrical hazards in the workplace.
    • Provide a periodic audit of this program.


    Individual

    • Attend training.
    • Use appropriate electrical safety-related work practices, including all necessary protective equipment and materials.

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For More Information

Contact the EHS University Safety Engineer at 258-5294.

An Electrical Safety Related Work Practices Self-Audit Checklist is available through EHS or may be downloaded either as a PDF or a customizable Word document.

The following model programs are available through EHS:

  • Electrical Safety-Related Work Practices
  • Lockout/Tagout
  • Personal Protective Equipment Hazard Assessment

The following references are available through EHS:

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