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JOB SAFETY ANALYSIS


HAZARD IDENTIFICATION TOOL-REFRESHER ENERGY SOURCES

Gravity

Electrical

Mechanical

Motion

Pressure

Temperature

Chemical

Biological

Radiation

Sound

WHAT IS HAZARD
A condition or action that has the potential for an unplanned release of, or unwanted contact with, an energy source that may result in harm or injury to people, property or the environment.

HAZARD IDENTIFICATION OBJECTIVE
Provide you with a method to identify energy sources in your environment.
Enable you to identify potential hazards associated with these energy sources.
Enhance your Hazard Assessment skills through the integration of this tool with JSA and JHA.

ENERGY WHEEL

GRAVITY
The force caused by the attraction of all other masses to the earth.
Examples: Falling object, collapsing roof, and a body tripping or falling.

MOTION
The change in position of objects or substances.
Examples: vehicles or equipment movement, flowing water, wind, and body positioning- lifting, straining, or bending.

MECHANICAL ENERGY
The energy of the components of a mechanical system, rotation, vibration, motion, etc.Within otherwise stationary piece of equipment/machinery.
Examples: rotating equipment, compressed springs, drive belts, conveyors, and, motors.

ELECTRICAL
The presence and flow of an electric charge.
Examples: power lines, transformers, static charges, lightening, energized equipment, wiring, and batteries.

PRESSURE
Energy applied by a liquid or gas which has been compressed or is under a vacuum.
Examples: Pressure, piping, compressed, cylinders, control lines, vessels, tanks, hoses, and pneumatic and hydraulic equipment.

RADIATION
The energy emitted from radioactive elements or sources and naturally occurring radioactive materials (NORM).
Examples: lighting issues, welding arcs, solar rays, microwaves, lasers, x-rays, and NORM scale.

SOUND
Sound is produced when a force cause an object or substance to vibrate the energy is transferred through the substance in waves.
Examples: equipment and vehicle noise, vibration, high pressure release, and the impact of noise to communication.

INTERRACTION OF ENERGY SOURCES
Temperature and Chemical

Chemical and Gravity

Sound and Mechanical

Some energy sources may interact and compound the hazard potential for instance, an ignition source (spark) combined with flammable vapors could result in the explosion and fire. A hot or corrosive liquid in a pipe is dangerous enough, but pressurizing the liquid would increase the chance you could be sprayed and injured if the piping was combined or ruptured.
Another example: While using a band saw, you have both motion and mechanical energy, which combines with sound energy could injure you in several ways.

JOB HAZARD ANALYSIS
Performed as part of job planning provides a structured approach for identifying potential hazard and developing control measures.
Ensures that the proper people, equipment, preparation and HES processes are identified prior to commencing work.
Provides the opportunity to adjust the work plan to reduce risk.
A qualified SOP may be used as the hazard analysis for job planning.

JOB HAZARD ANALYSIS –CONTD

To identify anticipated hazard and plan migrations.

To ensure that the right number of people, skill sets, equipment and PPE are included in the plan.

To identify the types of permits required to do the work.

For use as starting point for onsite JSA.

STEPS IN CONDUCTING JHA 

  1. Identify the task
  2. Forming the team
  3. Break the task down into major steps
  4. Identifying energy sources related to each step.
  5. Determine potential consequence
  6. Determine existing controls/safeguard in place.
  7. Risk Rank for each step.
  8. Developing additional controls if risk level is not low.

IDENTIFYING THE TASK

  1. A task is a sequence of steps or activities.
  2. Task are identified and evaluated to the appropriate level of detail.

-Performing a shutdown on a gas plant.
-Turning on a switch The appropriate level of detail for a task
-Removing a pump for maintenance.
-Collecting an oil sample from a vessel.
A hazard analysis (JSA) used onsite by an individual work crew should cover a single specific task.
In the planning phase for a large scope of work (eg capital project) the hazard analysis may consist of a single assessment covering many task.

FORMING THE HAZARD ANALYSIS TEAM

  1. Be experienced and knowledgeable about the task and hazards.
  2. Understand the hazard analysis procedure.
  3. Be an experienced facilitator, if appropriate.
  4. When forming the team, consider factors such as the complexity of the task, the location of the work and size.

JOB SAFETY ANALYSIS WORK SHEET COMPONENTS
 S/N  Task   Energy    Potential       Potential              Existing      Risk    Recomended
                    Sources   Hazards        Consequences     Controls      Level


JOB HAZARD ANALYSIS WORK SHEET COMPONENTS

S/N Task Energy     Sources    Consequences Responsible
                                      Potential

ENGINEERING 8916012274062145380

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