Saturday, 23 August 2025

✅ Why is carbon dioxide used in fire extinguishers

 ✅ Why is carbon dioxide used in fire extinguishers?




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  1. Issue Source / Interested Party / Process Significant Issue / Needs & Expectations /Process Activity Risk Type Identified Risk Aspect
    IDT Transformer Oil Filtration Job IDT Transformer Oil Filtration hose pipe fixing work. OHS Accidental dislocation of Suction / Delivery Hose pipe of Filtration Pumps.
    IDT Transformer Oil Filtration oil spillage in work area. Environmental Oil Spillages.
    IDT Transformer Oil Filtration Machine rotating parts. OHS Exposure to Rotating Parts of Oil Filtration Equipment.
    IDT Transformer Oil Filtration equipment movement. OHS Accidental movement of Mobile Filtering Equipment during operation..
    IDT Transformer Oil Filtration in & around area. OHS Slip-Trip- Fall Hazard.
    IDT Transformer Oil Filtration Job. OHS Fire Hazard.
    IDT Transformer Oil Filtration Job. Quality "1.Unauthorized person handling
    2.Incompetent person engaged in Inspection & maintenance activities"
    IDT Shifting & Erection Activities Transformers Transportation From Stores & Erection on Civil Foundation. OHS Accidental fall of Transformer while loading on the trailer body at Store yard / Fall of Workmen from height while making Slings Arrangement on Top Portion of Transformer.
    Transformers Transportation From Stores & Erection on Civil Foundation. OHS Accidental hit of crane / load to the workmen during swing motion or Hit by Trailer during Reverse Motion.
    Transformer Transportation from Store yard to Work Location By Trailer. OHS Topple down of Transformer during transportation by trailer.
    Transformer Lifting From Trailer Body and Lowering on Civil Foundation. OHS Entrapping of hands for the Riggers In Between Slings & Transformer Body
    Transformer Lifting From Trailer Body and Lowering on Civil Foundation. OHS Hit by Load during lowering with crane.
    Transformer Shifting from Store yard to Work Location. Environmental Dust emission on construction road during material transportation by Trailer.
    Transformer Installation Quality Topple down of Transformer during placing at foundation
    Transformer Installation Quality Topple down of from IDT while accessories erection time.

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  2. Inverter Duty Transformer Insulation Resistance Measurement with Megger Visual Inspection of Installation OHS "1. Electric Shock Hazard from an energised untested electrical circuit.
    2. Injury sustained from being struck by a release of
    uncontrolled energy.
    3. Electric Shock Hazard from inadvertent contact with live parts or undetected voltages.
    4. Attack from biting insects and vermin, or poisonous plants and animals"
    Live Electrical work OHS "1. Electric Shock Hazard from inadvertent contact with live parts or undetected voltages.
    2. Burns from arcing or flashover.
    "
    "Testing Earthing System for
    Continuity and Resistance" OHS "1.Electric Shock Hazard from differential voltage between elements.
    2. Circuit Protection fails due to poor earthling, resulting in electric shock and equipment damage."
    Insulation Resistance OHS "1.Electric Shock Hazard from inadvertent contact with live parts or undetected voltages
    2. Fire from Short circuits
    3. Equipment Damage"
    Polarity OHS "1.Electric Shock Hazard as a result
    from the incorrect connection of
    active, neutral and earthling
    conductors
    2. Equipment damage"
    Correct Circuit Connection OHS "Electric Shock Hazard as a result
    contact with an energized circuit
    • Equipment damage
    • Fire from short circuit or current
    in the earthling system"
    "Verification of operation &
    Residual Current Devices" OHS "Electric Shock Hazard as a result
    of a RCD failing to operate.
    • Potential voltage rise in the earth
    during the test may be encountered."
    Earth Electrode OHS "Electric Shock Hazard as a result
    of a protection devices not operating, and the earth electrode being high resistance
    • Electric Shock Hazard as a result
    of disconnecting the electrode
    when current may be flowing."
    "Continuity and Resistance of
    incoming Neutral" OHS "•Electric Shock Hazard as a result
    of a loose or poor neutral connection.
    • Equipment damage"
    Megger Equipment Connections OHS "• Electric Shock Hazard as a result
    of a incorrect polarity in connections.
    Electric Shock Hazard from failed
    earthling system
    • Electric Shock Hazard from
    inadvertent contact with live
    parts or undetected voltages as
    a result of MEN or Neutral reinstatement
    • Burns from arcing or flashover
    • Explosion from gas ignition"
    "Repairs to Portable
    electrical equipment" OHS "• Electric Shock Hazard as a result
    of defective equipment
    • Electric Shock Hazard from
    inadvertent contact with live
    parts"
    Accessing Switchboards OHS "• Electric Shock Hazard from inadvertent contact with live
    parts or undetected voltages
    • Attack from biting insects and
    vermin, or poisonous plants and
    animals
    • Injury sustained from being struck
    by a release of uncontrolled energy.
    • Burns from arcing or flashover
    • Explosion from gas ignition
    • Working at heights
    • Confined Space"
    Accessing Switchboards Quality "1.Unauthorized person handling
    2.Incompetent person engaged in Inspection & maintenance activities"

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