Module 6 Risk Assessment.pdf

ELECTRICAL
SAFETY RISK
ASSESSMENT

ELECTRICAL SAFETY RISK ASSESSMENT
• Safety assessments of electrical equipment and systems should be a planned and scheduled event
to help ensure a safe and reliable electrical system.
• Safety assessments of electrical equipment and systems should be a planned and scheduled
event to help ensure a safe and reliable electrical system.
• Regularly scheduled assessments are used to identify the following:
• unsafe equipment;
• inadequate or non-existent electrical equipment maintenance programs;
• unsafe employee work practices;
• compliance or non-compliance with regulations and standards;
• personal protective equipment (PPE) availability,
• condition, and usage by employees; and
• training programs for qualified and unqualified personnel.

Assessing the Risks
Once you have identified each potential source of electrical injury in a given work space,
you’re ready to move on to assessing the risks for those hazards.“Risk” refers to a combination
of ideas: the severity of an injury and the likelihood of that injury occurring. Informative Annex F
of the NFPA 70E standard describes a procedure for breaking down this concept into smaller
parts. Start by ranking the severity of the potential injury into one of these categories:
• Fatal or life-altering injury, permanently preventing a return to work
• Severe injury, requiring hospitalization
• Reversible harm, requiring professional medical attention
• Minor injuries, requiring first aid only

Assessing the Risks
For each task or procedure that could expose an employee to the hazard, rank the
likelihood of an injury’s occurrence, using these parameters:
• How often will a worker be exposed — once an hour, once a day, once a month, or once
a year?
• When a worker is exposed, how likely is it that the exposure will result in a harmful event?
• If a harmful event occurs, how likely is it that the worker will be able to limit or avoid
injury?
• Combining the severity of a potential injury with the likelihood of the injury occurring will
give you an estimate of the total risk for a given task.

Implementing Controls
• Engineering Control: such as barriers and redesigned equipment, which can eliminate
a hazard entirely or provide physical separation between a hazard and a worker
• Awareness Devices: such as signs and labels, which ensure that workers and visitors are
aware of a hazard before they are exposed to it
• Procedures: including written plans and instructions, which give workers specific guidance on
performing a given task safely
• Training: explaining what to do, what not to do, and the reasons behind those steps, which
gives workers a general background of safety that applies to similar situations
• Personal Protective Equipment (PPE): such as gloves and face shields, which offers a last line
of defense for workers exposed to a hazard

Risk Assessment Steps
• Identify the electrical hazards associated with the task and the electrical system, or electrical
process involved (example: shock hazard risk; arc flash hazard risk).
• Identify the electrical work to be performed within the electrical system or process.
• Define the possible failure modes that result in exposure to electrical hazards and the potential
resultant harm.
• Assess the severity of the potential injury from the electrical hazards.
• Determine the likelihood of the occurrence for each hazard.
• Define the level of risk for the associated hazard.
• If the level of risk is not acceptable, identify the additional measures or corrective actions to be
taken. Example: wear appropriate PPE and if the risk too great, do not perform the task.

Risk Assessment Sample

Module 6 Risk Assessment.pdf

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Module 6 Risk Assessment.pdf