Berkeley Lab

Energized Electrical Work Permit (EEWP)

Under normal operation of approved electrical equipment, the user/operator is protected by engineering controls, including insulation, enclosures, barriers, grounds and other methods to prevent injury.  When engineering controls are not yet in place, not approved, or removed for installation, maintenance, or repair, while energized, other safe work practice controls must be implemented.

Operations that involve physically moving energized conductors and parts, or moving parts that are near energized conductors (within the Prohibited Approach Boundary), and are conducted with the equipment fully energized and with some, or all, of the normal protective barriers removed requires work control with an approved Energized Electrical Work Permit (EEWP).

Energized work shall be permitted only if:

  • Additional or increased hazards would exist due to establishing an electrically-safe work condition;
  • Examples of additional hazards or increased risk include, but are not limited to, interruption of life-support equipment, deactivation of emergency alarm systems, and shut-down of hazardous location ventilation equipment.
  • Equipment design or operational limitations make it infeasible to perform the work in a deenergized state; or
  • Examples of work that might be performed within the limited approach boundary of exposed energized electrical conductors or circuit parts because of infeasibility due to equipment design or operational limitations include performing diagnostics and testing (for example, start-up or troubleshooting) of electric circuits that can only be performed with the circuit energized and work on circuits that form an integral part of a continuous process that would otherwise need to be completely shut down in order to permit work on one circuit or piece of equipment.
  • If all exposed energized conductors and parts operate at 50 V or less with respect to ground.

An Energized Electrical Work Permit shall include, but not be limited to:

  • A description of the circuit and equipment to be worked on and their location;
  • Justification for why the work cannot be performed in a  de-energized condition;
  • Reason why the work must be performed and no alternatives have been found adequate, including not doing the work at all.
  • Reason why the work cannot be delayed until the next scheduled or unscheduled outage.
  • An Electrical Safe Work Plan approved by the EHS Electrical AHJ for Safe Work Practices
  • Results of the shock hazard analysis;
  • Determination of shock protection boundaries;
  • Results of the arc hazard analysis;
  • The arc flash protection boundary;
  • The necessary PPE to safely perform the assigned task;
  • Means employed to restrict the access of non-qualified persons from the work area;
  • Evidence of completion of a job briefing, including a discussion of any job-specific hazards; and
  • All persons participating in the EEWP job briefing shall sign in to the EEWP.
  • Energized work approval by a senior line manager designated by the EHS Electrical AHJ for Safe Work Practices.
  • The EHS Electrical AHJ for Safe Work Practices is not the final approver for the EEWP. Only a senior line manager who has the authority to require an outage instead of ener-gized work is authorized to approve an EEWP.
  • After consideration of the scope of work and the justification statement, the EHS Electrical AHJ for Safe Work Practices will select the appropriate senior line managers for approval of the EEWP. In most cases this will be a division director (or their deputy) for the division most impacted by the outage. In some cases the EHS Electrical AHJ for Safe Work Practices will refer the EEWP to the COO for final approval.

The completed EEWP, Electrical Safe Work Plan, and job briefing sign-in sheet shall be returned to the Electrical AHJ for Safe Work Practices for record keeping.

Contact the Electrical AHJ for Safe Work Practices to apply for an EEWP.