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Disaster Management


Disaster Management Plan for Thermal Power Plants By : H.M. Gangopadhyay Dy. General Manager (Safety) Corporate Safety Department NTPC Limited Presentation Outline ... – PowerPoint PPT presentation

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Title: Disaster Management

Disaster Management Plan for Thermal Power
Plants By H.M. Gangopadhyay Dy. General
Manager (Safety) Corporate Safety Department NTPC
Presentation Outline
  • Classification of Disaster
  • Requirement under the Laws
  • Objective of the Plan
  • Disasters in Thermal Power Plants
  • Risk Assessment Vulnerability Mapping
  • Emergency Equipments, Training Mock Drills
  • Disaster Management Organisation
  • Responsibilities of Team Members
  • Emergency Control Centre (ECC)
  • Evacuation and Assembly Points
  • Mutual Aid Scheme

  • Natural disasters (earth quake, flood, Tsunami
  • Technical disasters collapse of buildings,
    release of gases, major fires, explosions.

Classification of Disaster
  • A disaster occurring in the plant may
  • several sections within it
  • serious injuries / loss of lives,
  • Extensive damage to property
  • Serious disruption out side the works area
  • It requires the best use of internal resources as
    well as outside resources to handle it

  • ON-SITE EMERGENCY An accident which takes place
    in an industry handling hazardous materials and
    its effects are confined to the factory premises
    involving only the people working in the factory.
  • OFF-SITE EMERGENCY If an accident takes place in
    an industry handling hazardous materials and its
    effects are felt outside the factory premises,
    the situation thus generated is called an
    Off-Site Emergency

Factories Act
  • In accordance with the provision of Section 2
    (cb), read with The Factories Act - 1948, power
    generating industry is classified as hazardous
    process under item 5 thereof.
  • According to Section 41-b, para 4, of Factories
    Act- 1948, all factories engaged in hazardous
    processes must have Disaster Management Plan.

Section 41-b, Para -4 of Factories Act-1948
  • Every occupier shall, with the approval of the
    Chief Inspector, draw up an on site emergency
    plan and detailed disaster control measures for
    his factory and make known to the workers
    employed there in and to the general public
    living in the vicinity of factory, the safety
    measures required to be taken in the event of an
    accident taking place.

Approach and Objective of the Plan
  • The plan is developed to make best possible use
  • resources at its command and / or out side
  • for the following purposes.89
  • Prevention, Mitigation Preparedness (Pre phase)
  • Response, Rehabilitation Recovery (Post phase)
  • Safe guard others by evacuating them to safer
  • Rescue of victims and treating them suitably to
    effect speedy recovery at hospital
  • Identify the personnel affected / dead
  • Inform relatives of those deceased / affected
  • Providing relevant records / data needed as
    evidence for subsequent enquiry
  • Rehabilitation of the affected persons

Possible Disasters in Thermal Power Plants
  • Fast spreading fires
  • Explosions
  • Bursting of pipe lines / vessels
  • Uncontrolled release of toxic / corrosive /
    flammable liquids
  • Slow isolated fires
  • Breach of dams / ash dykes
  • Floods

Fire Hazards In Thermal Power Plants
  • Coal handling plant
  • Coal dust accumulation on
  • conveyor decks,
  • cable trays,
  • head tail pulleys,
  • Crusher house and vibrating screen floors,
  • Bunker house ,
  • Belt sway, belt tension,
  • Failure of belt joints,
  • Snapping of belts,
  • Partially damaged belt in operation,
  • Smoldering fire in bunkers,
  • Jamming of idlers and pulleys,

Fire Hazards In Thermal Power Plants
  • Cables in cable galleries and on trays in all
    plant sections,
  • Coal dust deposited on cable trays in mill area
  • Fuel oil handling and oil tanks (HSD, HFO, Petrol
  • Transformer oil, turbine oil, control fluid, seal
  • Electrical system
  • Heat path damaged insulation
  • Dry grasses
  • Accumulation of waste materials etc.

Explosion Hazard In Thermal Power Plant
  • Hydrogen plant
  • Turbo generators where hydrogen is used for
    cooling of TG.
  • Transformer (oil cooled).
  • Boiler (Coal/Oil fired).
  • Coal dust in Mills and Boilers.

Bursting of Pipe Lines, Vessels
  • Water / Steam pipes due to high pressure/
  • H2 Gas lines and Acid lines.
  • Acid/Alkali tanks
  • H2 Gas Cylinders
  • Compressed air header.
  • Compressed air receivers.
  • H2 Gas Holder.

Release of Gases / Dust
  • Chlorine in water treatment plant
  • Hydrogen in turbo generator area of main plant
  • Pulverized coal dust from mills and associated
  • Fly ash from chimneys and ash ponds, ESP hoppers
    and bottom ash system
  • Coal dust in transfer points, CHP, Crusher mill
  • Flue gas from the ducts

Release Of Liquid
  • Acid and alkali tanks in water treatment plants
  • Chlorine toners in WTPs
  • Fuel oil tanks in fuel oil handling section
  • Ash dyke
  • Turbine oil and seal oil leakage

  • Breach of balancing reservoir.
  • Breach of ash dykes

Sections prone to Emergencies
  • Coal handling plant
  • Main plant, including Boiler, TG, ESP
  • Water treatment plant, use of Chlorine gas
  • Hydrogen generation plant
  • Fuel Oil Handling areas

Common elements of a model Disaster Management
Components of Disaster Management Plan
  • Plant emergency organization
  • Plant area risk evaluation
  • Notification procedures communication systems
  • Emergency equipments and facilities available
  • Procedure for returning to normal operations
  • Training and mock-drills for specialized services
  • Regular tests of emergency organization and
  • Review of Plan and updates
  • Emergency response procedures
  • Detailed operating manual

Risk Assesment Vulnerability Mapping
  • Consists of the following components
  • Maximum quantitative and qualitative assessment
    of hazards at any given point of time
  • Location of hazardous operations and systems
  • Properties of hazardous systems (MSDS)
  • Location of isolation systems
  • Special fire-fighting procedures
  • Special handling requirements.

Communication systems
  • Alarm systems
  • Communication equipments
  • Plant management, Local Officials, Response
    Agencies, Neighbouring industries, Neighbourhood
  • Names and telephone numbers of the designated
    officials and their alternates
  • Designated persons for media contacts
  • Procedures for notifying families of injured
  • Central reporting office (ECC).

Emergency equipments facilities
  • Fire-fighting equipment
  • Emergency medical supplies
  • Toxic gas detectors
  • Wind direction (wind sock)/speed indicators
  • Self-contained breathing apparatus
  • Protective clothings
  • Other on-site equipments according to the local
  • Containment facilities around tanks/vessels
  • Interfaces lines of communication with off-site
    officials, neighbouring industries.

Training, Simulation Mock Drills
  • Knowledge of chemicals (properties, toxicity,
  • and procedures for reporting emergencies
  • Alarm systems and communication network
  • Location of fire-fighting/first-aid equipment
  • Use of fire-fighting/first-aid equipment
  • Use of protective equipment(respirators,
    breathing apparatus, clothing, etc.)
  • Decontamination procedure for protective clothing
    and equipment demolition and repair
  • Evaluation procedures and rescue services
  • Records of documented simulated emergencies which
    should be conducted frequently.

Training, Simulation Mock Drills
  • Training and drills for specialized services
  • Regular tests of emergency organization and
  • Plan updates
  • Emergency response procedures
  • Detailed operating manual

Disaster Management Organisation
Chief Incident Controller
Support Team
Work Incident Controller
Communication team
Task Force Team
HR Team
Support Team
Rescue Team
Matls Mgmt. Team
Maint Team
Medical team
Autobase Team
Security Team
Responsibilities of WIC
  • The WIC shall identify
  • All probable emergency causing situations and
    take proper precautionary measures to prevent /
    control such situations
  • Ensure that all emergency team under him are
    informed about their functions before and during
  • Direct all operations within the affected area
    with the following priority
  • Secure the safety of personnel
  • Minimise damage to plant environment
  • Minimise loss of material

Responsibilities of WIC
  • Ensure that all non-essential workers in the
    affected areas are evacuated to appropriate
    assembly point.
  • Set up communication contact through telephone /
    messenger etc. With emergency control centre
  • Report significant developments to the chief
    incident controller.
  • Assume duties of chief incident controller
    pending his arrival and in particular
  • Direct the shut down and evacuation of plant and
    affected areas likely to be threatened by the
  • Ensure key personnel are informed and they are
    called in

Responsibilities of CIC
  • Relieve the works incidence controller from the
    responsibility of over all main control.
  • Declare major emergency, if considered necessary
    and ensure out side emergency services are called
    in and near by industries are informed.
  • Directing shutting down and evacuation of plant,
    establish liaison with head of fire, safety,
    medical, HR, security and local police.
  • Arrange for relief of personnel and catering
    facilities for affected in emergency.
  • Ensure information / reporting to Corporate
    Office and Statutory authorities as per
    provisions of state Factory rules and Factory Act

Emergency Control Centre (ECC)
  • Emergency control centre shall be established and
    equipped with adequate means of communication to
    areas inside and outside.
  • The emergency control room will be manned by the
    Chief Incident Controller, Work Incident
    Controller, key personnel and Sr.Officers of out
    side services called for assistance.
  • It should have general map and guide for Assembly
    Points, location of Hazardous process/operation
  • No other personnel shall have access to the ECC.

Emergency Control Centre (ECC)
  • ECC must contain the following information
  • Safety data pertaining to all hazardous materials
    likely to cause emergency.
  • Procedure of major and special fire fighting,
    rescue operations, first aid etc.
  • Emergency call out list of persons drafted for
    emergency control eg key personnel from fire,
    safety, medical, HR, security, local police and
    District Admn. Authorities.

Evacuation And Assembly Points
  • In an emergency, it will almost certainly be
    necessary to evacuate personnel from affected
  • On evacuation, employees shall assemble at
    assembly points.
  • Assembly point must be shown in Disaster
    Management Plan.

Key Personnel
  • Apart from WIC and CIC, other works personnel
    will have key role to play in providing advice
    and in implementing the decisions made by CIC.
  • Key personnel includes
  • Incharge of generation, electrical mechanical
    maintenance, CI, Chemistry ( WTP)
  • Heads of HR, safety, PR, Medical, Security Fire

Mutual Aid Scheme
  • An understanding for mutual aid between nearby
    industries to send assistance to each other in
    case of an emergency
  • Details of facilities offered by the mutual aid
    partners should be mentioned in the plan
  • Details of contact phone nos. of officers
    responsible for emergency action of mutual aid
    partners should be mentioned in the plan

Support team to CIC WIC
  • In addition to the teams already mentioned there
    will be one additional team known as support
  • This team will assist CIC WIC during an
    emergency. The responsibilities of the team
    given below
  • Contacting statutory authorities.
  • Arranging for relievers and catering facilities.
  • Giving information to media.

Responsibilities Of Support Team
  • Arranging shelters for affected persons.
  • Contacting medical centres and nursing homes.
  • Providing all other support, as necessary.
  • Arranging for urgently required materials through
    cash purchase or whatever means.
  • Arranging funds for various relief measures as
    emergency purchase of materials.

Responsibilities of key personnel
  • Departmental heads
  • The departmental heads will provide assistance as
    required by the works incident controller. They
    will decide which members of their departments
    are required at the incident site.
  • Head of Tech. Services
  • On knowing the major emergency, he will proceed
    to the site and report to CIC.
  • He will provide technical information as required
    to CIC/WIC.
  • Head of Safety
  • On knowing the emergency, he will immediately
    report to site and keep in touch with CIC
  • He will make sure that all safety equipments are
    made available to the emergency teams.
  • Participate in rescue operations.
  • Maintain inventory of items in ECC.

Mock Drill
  • Mock-drills are conducted to test the
    effectiveness of action plan / emergency
  • Periodicity of mock drill is at least once in
    every six months (As per Factories Act-1948).
  • Deficiencies found are to be recorded and
    corrective actions are to be taken immediately
    for effectiveness of the plan.

Emergency Siren
  • --------------------------------------------------
  • T y p e Duration
  • --------------------------------------------------
  • In case of fire 10 seconds on

    05 seconds off,
    3 times
  • In case of 20 seconds on,
  • Heavy chlorine leak 10 seconds off,
    5 times.
  • All clear signal Continuous
    siren for 3 min,

    only once.
  • --------------------------------------------------

  • Thank you
  • Let us develop a positive safety culture
    involving all our employees associates
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