Presentation on theme: "Disaster Management Plan for"— Presentation transcript:
1Disaster Management Plan for Thermal Power PlantsBy : H.M. GangopadhyayDy. General Manager (Safety)Corporate Safety DepartmentNTPC Limited
2Presentation Outline Classification of Disaster Requirement under the LawsObjective of the PlanDisasters in Thermal Power PlantsRisk Assessment & Vulnerability MappingEmergency Equipments, Training & Mock DrillsDisaster Management OrganisationResponsibilities of Team MembersEmergency Control Centre (ECC)Evacuation and Assembly PointsMutual Aid Scheme
3Natural disasters (earth quake, flood, Tsunami etc.,) EpidemicsNatural disasters (earth quake, flood, Tsunami etc.,)Technical disasters – collapse of buildings, release of gases, major fires, explosions.
4Classification of Disaster A disaster occurring in the plant may affect/causeseveral sections within itserious injuries / loss of lives,Extensive damage to propertySerious disruption out side the works areaIt requires the best use of internal resources as well as outside resources to handle it effectively.
5ON-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
6Factories Act Requirement In accordance with the provision of Section 2 (cb), read with The Factories Act , “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.
7Section 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.
8Approach and Objective of the Plan The plan is developed to make best possible use ofresources at its command and / or out side agenciesfor the following purposes.89Prevention, Mitigation & Preparedness (Pre phase)Response, Rehabilitation & Recovery (Post phase)Safe guard others by evacuating them to safer places;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;
9Possible Disasters in Thermal Power Plants Fast spreading firesExplosionsBursting of pipe lines / vesselsUncontrolled release of toxic / corrosive / flammable liquidsSlow isolated firesBreach of dams / ash dykesFloods
10Fire Hazards In Thermal Power Plants Coal handling plant:Coal dust accumulation onconveyor 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,
11Fire Hazards In Thermal Power Plants Cables in cable galleries and on trays in all plant sections,Coal dust deposited on cable trays in mill areaFuel oil handling and oil tanks (HSD, HFO, Petrol )Transformer oil, turbine oil, control fluid, seal oil,Electrical systemHeat path damaged insulationDry grassesAccumulation of waste materials etc.
12Explosion Hazard In Thermal Power Plant Hydrogen plantTurbo generators where hydrogen is used for cooling of TG.Transformer (oil cooled).Boiler (Coal/Oil fired).Coal dust in Mills and Boilers.
13Bursting of Pipe Lines, Vessels Water / Steam pipes due to high pressure/ temperatureH2 Gas lines and Acid lines.Acid/Alkali tanksH2 Gas CylindersCompressed air header.Compressed air receivers.H2 Gas Holder.
14Release of Gases / Dust Chlorine in water treatment plant Hydrogen in turbo generator area of main plantPulverized coal dust from mills and associated pipingFly ash from chimneys and ash ponds, ESP hoppers and bottom ash systemCoal dust in transfer points, CHP, Crusher & mill area.Flue gas from the ducts
15Release Of Liquid Acid and alkali tanks in water treatment plants Chlorine toners in WTPsFuel oil tanks in fuel oil handling sectionAsh dykeTurbine oil and seal oil leakage
16FloodsBreach of balancing reservoir.Breach of ash dykes
17Sections prone to Emergencies Coal handling plantMain plant, including Boiler, TG, ESPWater treatment plant, use of Chlorine gasHydrogen generation plantFuel Oil Handling areas
18Common elements of a model Disaster Management Plan
19Components of Disaster Management Plan Plant emergency organizationPlant & area risk evaluationNotification procedures & communication systemsEmergency equipments and facilities availableProcedure for returning to normal operationsTraining and mock-drills for specialized servicesRegular tests of emergency organization and proceduresReview of Plan and updatesEmergency response proceduresDetailed operating manual
20Risk Assesment & Vulnerability Mapping Consists of the following components:Maximum quantitative and qualitative assessment of hazards at any given point of timeLocation of hazardous operations and systemsProperties of hazardous systems (MSDS)Location of isolation systemsSpecial fire-fighting proceduresSpecial handling requirements.
21Communication systems Alarm systemsCommunication equipmentsPlant management, Local Officials, Response Agencies, Neighbouring industries, Neighbourhood populationNames and telephone numbers of the designated officials and their alternatesDesignated persons for media contactsProcedures for notifying families of injured employeesCentral reporting office (ECC).
22Emergency equipments & facilities Fire-fighting equipmentEmergency medical suppliesToxic gas detectorsWind direction (wind sock)/speed indicatorsSelf-contained breathing apparatusProtective clothingsOther on-site equipments according to the local conditionsContainment facilities around tanks/vesselsInterfaces & lines of communication with off-site officials, neighbouring industries.
23Training, Simulation & Mock Drills Knowledge of chemicals (properties, toxicity, etc.)and procedures for reporting emergenciesAlarm systems and communication networkLocation of fire-fighting/first-aid equipmentUse of fire-fighting/first-aid equipmentUse of protective equipment(respirators, breathing apparatus, clothing, etc.)Decontamination procedure for protective clothing and equipment; demolition and repairEvaluation procedures and rescue servicesRecords of documented simulated emergencies which should be conducted frequently.
24Training, Simulation & Mock Drills Training and drills for specialized servicesRegular tests of emergency organization and proceduresPlan updatesEmergency response proceduresDetailed operating manual
26Responsibilities 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 emergency;Direct all operations within the affected area with the following priority;Secure the safety of personnelMinimise damage to plant & environmentMinimise loss of material
27Responsibilities 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 (ECC).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 emergency.Ensure key personnel are informed and they are called in
28Responsibilities 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
29Emergency 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/operationNo other personnel shall have access to the ECC.
30Emergency 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.
31Evacuation And Assembly Points In an emergency, it will almost certainly be necessary to evacuate personnel from affected areas.On evacuation, employees shall assemble at assembly points.Assembly point must be shown in Disaster Management Plan.
32Key PersonnelApart 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 includesIncharge of generation, electrical & mechanical maintenance, C&I, Chemistry (& WTP)Heads of HR, safety, PR, Medical, Security & Fire Department.
33Mutual Aid SchemeAn 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
34Support team to CIC & WIC In addition to the teams already mentioned there will be one additional team known as support team.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.
35Responsibilities 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.
36Responsibilities 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. ServicesOn 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 CICHe will make sure that all safety equipments are made available to the emergency teams.Participate in rescue operations.Maintain inventory of items in ECC.
37Mock DrillMock-drills are conducted to test the effectiveness of action plan / emergency preparedness.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.
38Emergency Siren In case of fire 10 seconds on 05 seconds off, 3 times T y p e DurationIn case of fire seconds on seconds off, timesIn case of seconds on,Heavy chlorine leak seconds off, times.All clear signal Continuous siren for 3 min, only once.
39Thank youLet us develop a positive safety culture involving all our employees & associates