GORMAN-RUPP VG3B3-B, Installation, Operation And Maintenance Manual

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ELECTRICAL LOCKOUT / TAG OUT
PROCEDURES
EP-10095 Electrical Lockout Procedures.doc 2 of 5
Copyright © 2012 Aqua-Aerobic Systems, Inc. 2008-12-22

Return to service. Once work is completed and lockout/tag out devices are removed, tests
and visual inspection must confirm that all tools, mechanical restraints, electric jumpers,
shorts, and grounds have been removed. Only then is it safe to re-energize and return to
service.

Temporary release. If the job requiring lockout/tag out is interrupted for testing or
positioning equipment, follow the same steps as in return to service (above).
WARNING
ELECTRICAL HAZARDS

Electric shock and burns: An electric shock occurs when electric current passes
through the body. This can happen when touching an energized part. If the electric
current passes across the chest or head, death can result. At high voltages, severe
burns can result.

Arc-flash burns: An electric arc flash can occur if a conductive object gets too close
to a high-amp current source or by equipment failure (for instance, while opening
or closing disconnects). The arc can heat the air to temperatures as high as 35,000
º
F, and vaporize metal in the equipment. The arc flash can cause severe skin burns
by direct heat exposure and by igniting clothing.

Arc-blast impacts: The heating of air and vaporization of metal creates a pressure
wave that can damage hearing and cause memory loss (from concussion) and other
injuries. Flying metal parts are also a hazard.

Falls: Electric shocks and arc blasts can cause falls, especially from ladders or
unguarded scaffolding.
Electric Safety Principles - Energized Condition

De-energize whenever possible .

Plan every job . The approach and step-by-step procedures to complete the work at hand
must be discussed and agreed upon between all involved employees before beginning.
Write down first-time procedures. Discuss hazards and procedures in a job briefing with
supervisors and other workers before starting any job. It is the employer’s responsibility
to have or develop a checklist system for working on live circuits, if such a scenario
arises.

Identify the hazards . Conduct a job hazard analysis. Identify steps that could create
electric shock or arc-flash hazards.

Minimize the hazards . De-energize any equipment, and insulate, or isolate exposed live
parts so contact cannot be made. If this is impossible, obtain and wear proper Personal
Protective Equipment (PPE) and tools.

Anticipate problems . If it can go wrong, it might. Make sure the proper PPE and tools
are immediately available for the worst-case scenario.

Obtain training . Make sure all involved employees are qualified electrical workers with
appropriate training for the job.