Hazard identification ppt.
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27-01-2011, 12:28 PM





.pptx   Hazards and risks.pptx (Size: 238.02 KB / Downloads: 187)

Description of activity: Material (Steel sheets with sharp edges) are stored in the raw material storage area. An overhead crane is used to move the material to a rack near the shearing machine which is about 30 meters away from raw material storage. Individual sheets are lifted manually from the rack and moved to the shearing machine. Shearing (or cutting) takes place, cut pieces are removed manually (stretching is required) and kept on nearby racks. Scrap is removed manually (considerable bending is required) and moved to the scrap area.

Definition of key terms
OH & S
Hazard
Risk
Hazard Identification
Risk Assessment
Tolerable / Acceptable Risk
Safety

Key Definitions

Occupational Health and Safety
Conditions and factors that affect the well-being of
employees,
temporary workers,
contractor personnel,
visitors and
any other person in the workplace



Hazard
Source, situation or act with a potential for harm in terms of human injury or ill health or a combination of these (Ill health refers to identifiable, adverse physical or mental condition arising from and/or made worse by a work activity and/or work related situation)

Name any three hazards in your institute
Risk
Combination of the likelihood of an occurrence of a hazardous event or exposure(s) and the severity of injury or ill health that can be caused by the event or exposure(s)


Hazard Identification
Process of recognizing that a hazard exists and defining its characteristics


Risk Assessment
Process of evaluating the risk(s) arising from a hazard(s), taking into account the adequacy of any existing controls, and deciding whether or not the risk(s) is acceptable


Tolerable / acceptable risk
Risk that has been reduced to a level that can be tolerated by the organization having regard to its legal obligation and its own OH&S policy

Safety
Freedom from unacceptable risk of harm

What are the broad categories of hazards?

Work Equipment, e.g. entrapment in machinery, equipment without ergonomics consideration.
Workplace, e.g. uneven floors, poor lighting, high noise level.
Materials and substances, e.g. dusts, welding fumes.
Environmental, e.g. temperature extremes, both hot and cold.
Working practices and procedures, e.g. poor manual handling techniques, unhygienic conditions

Hazards
Struck by : person struck by object
Struck against : person strikes against object
Contact With: Contact with energy source like electrical, hydraulic, thermal, pneumatic
Caught between : pinched, crushed between objects
Caught on : person or his clothing gets caught on an object
Awkward Posture: exertion due to stressful / awkward posture
Caught in : person caught in opening
Fall to Same level: Fall to same level by slipping or tripping
Fall Below: Fall to level below
EX: Exposure to gases, dust, mist, UV, IR, Noise etc
Excessive force, exposure to stressors from excessive force
Excessive repetitions, exposure to stressors by excessive frequency

Determining need for controls
Hierarchy of controls
Elimination – Modify a design to eliminate the hazard (Mechanized instead of manual packaging)
Substitution – Substitute a less hazardous material or reduce the system energy (Lower the force, pressure, temperature, current)
Engineering Controls – Ventilation systems, machine guarding, interlocks, sound enclosures
Signages, warnings and / or administrative controls – Alarms, safety procedures, equipment inspections, access controls
PPE – Safety glasses, hearing protection, face shields, safety harnesses and lanyards, respirators and gloves


Hazard identification
Description of activity: Material (Steel sheets with sharp edges) are stored in the raw material storage area. An overhead crane is used to move the material to a rack near the shearing machine which is about 30 meters away from raw material storage. Individual sheets are lifted manually from the rack and moved to the shearing machine. Shearing (or cutting) takes place, cut pieces are removed manually (stretching is required) and kept on nearby racks. Scrap is removed manually (considerable bending is required) and moved to the scrap area





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