Fire Safety Requirements for Oil Refineries in India: Systems and Compliance
Oil refineries are among the most fire-sensitive industrial facilities in India. They handle crude oil, petroleum products, hydrocarbons, LPG, solvents and other flammable materials under high temperature and pressure. A small leak, ignition source or equipment failure can quickly develop into a major fire or explosion.
For this reason, refinery fire safety cannot depend only on portable extinguishers or a conventional alarm system. It requires a combination of fire detection, fire suppression, firewater infrastructure, passive fire protection, emergency response, inspection and regulatory compliance.
In India, refinery operators need to consider requirements under the Petroleum Rules, 2002, applicable OISD standards, PESO requirements and other relevant safety regulations and codes. OISD-STD-116 specifically addresses fire protection facilities for petroleum refineries, petrochemical complexes and oil/gas processing plants. The current OISD standards list shows OISD-STD-116 as the June 2025 edition.
This guide explains the major fire safety requirements for oil refineries in India, including the systems that safety officers and facility managers should evaluate.
Why Fire Safety Is Critical in Oil Refineries
An oil refinery has several areas where fire hazards can develop. These include crude processing units, furnaces, tank farms, loading and unloading areas, pump houses, LPG facilities, pipelines, electrical installations and process units.
The primary risks include:
- Hydrocarbon leaks
- Flammable vapour formation
- Pool fires
- Jet fires
- Flash fires
- Equipment overheating
- Electrical ignition
- Static electricity
- Pressure-related incidents
- Tank fires
- Explosion risks
The risk is not limited to the refinery itself. OISD notes that industrial and residential development can gradually come closer to refinery installations, increasing the potential impact of a major incident on surrounding areas.
Therefore, refinery fire protection must be designed to detect an incident early, control its spread and support emergency response.
Key Fire Safety Requirements for Oil Refineries in India
A refinery’s fire protection strategy should combine active protection, passive protection, detection, emergency response and regular inspection.
1. Fire Detection and Alarm Systems
Early detection is one of the most important parts of refinery safety.
A suitable fire detection system should identify a developing fire or hazardous condition as quickly as possible. Depending on the area and risk, refineries may use:
- Flame detectors
- Heat detectors
- Smoke detectors
- Gas detectors
- Fire alarms
- Manual call points
- Process monitoring systems
Conventional smoke detection may not be suitable for every outdoor hydrocarbon processing area. Flame and gas detection can be more appropriate in locations where combustible vapours or rapidly developing fires are possible.
The detection system should be integrated with the refinery’s control and emergency response systems so that alarms can reach the right personnel quickly.
Also Read: The Future of Fire Detection: AI-Powered Smoke and Heat Sensors
2. Fire Hydrant System and Firewater Network
A reliable fire hydrant system is a core component of refinery fire protection.
Petroleum Rules, 2002 specifically require an adequate water supply at strategic points through an independent ring main or grid with isolating valves. The system is required to remain pressurised using boosting pumps, with at least one boosting pump independent of the normal power supply.
The rules also specify hydrant spacing requirements: hydrants are to be provided at convenient locations at intervals not exceeding 30 metres in hazardous areas and 45 metres in non-hazardous areas, subject to the applicable requirements.
A refinery firewater system typically includes:
- Firewater storage tanks
- Fire pumps
- Jockey pumps
- Ring mains
- Hydrants
- Monitors
- Isolation valves
- Hose connections
- Water spray systems
- Deluge systems
The design must ensure that sufficient water is available during an emergency, including situations where normal utilities may be unavailable.
Also Read: The Role of Passive Fire Protection in High-Rise Buildings
3. Fire Suppression Systems
Detection alone cannot control a refinery fire. The facility also needs appropriate fire suppression systems.
The suppression method should depend on the type of hazard.
Common systems can include:
Automatic sprinkler systems
Fire sprinkler systems can provide automatic water discharge when heat reaches the activation point. They are particularly useful in suitable enclosed buildings and support areas.
However, refinery process areas often require more specialised protection than standard building sprinklers.
Water spray and deluge systems
Water spray and deluge systems can provide rapid cooling and protection for equipment exposed to fire or radiant heat.
They may be used around process equipment, vessels and other high-risk installations where rapid application of water is required.
Foam systems
Foam can be important for hydrocarbon liquid fires because it can form a blanket over the burning liquid and help suppress vapour release.
Foam systems may be considered for appropriate tank and hydrocarbon handling applications based on the hazard assessment and applicable standards.
Water mist systems
Water mist systems use finely divided water droplets and can be useful for selected applications where conventional water systems may not be the preferred solution.
The system should always be selected based on the specific fire risk, equipment and applicable design standards.
4. Passive Fire Protection
Active systems respond to a fire. Passive fire protection helps limit the consequences of fire and protects critical structures and equipment.
Important measures can include:
- Fireproofing of structural steel
- Fire rated doors
- Fire-resistant walls
- Fire-resistant barriers
- Protected cable routes
- Equipment separation
- Fire-resistant insulation
- Protected escape routes
Passive protection is particularly important because a refinery incident may continue even when active systems are operating.
The objective is to prevent structural failure and provide additional time for emergency response, isolation and evacuation.
OISD also maintains a dedicated standard covering fire proofing of steel supporting structures in the oil and gas industry.
Fire suppression systems are designed to control or extinguish a fire without relying entirely on manual intervention.
5. Tank Farm Fire Protection
Storage tanks represent a major fire risk because they can contain large quantities of flammable petroleum products.
Tank farm safety may require a combination of:
- Firewater systems
- Foam-based protection
- Cooling arrangements
- Fire monitors
- Detection systems
- Emergency isolation
- Drainage and containment
- Adequate separation distances
The fire protection design should consider the stored product, tank type, storage capacity and potential fire scenarios.
OISD-STD-129 also addresses inspection of storage tanks, highlighting the importance of ongoing inspection and maintenance in refinery operations.
6. Electrical and Ignition Source Control
Electrical equipment can become an ignition source in areas containing flammable gases or vapours.
Refineries therefore need appropriate electrical area classification and suitable equipment for hazardous locations.
Important controls include:
- Proper grounding and bonding
- Static electricity control
- Suitable electrical equipment
- Inspection of electrical installations
- Lightning protection
- Control of hot work
- Restricted ignition sources
- Safe maintenance procedures
OISD maintains standards covering hazardous-area classification, static electricity, electrical installation safety and fire prevention for electrical installations.
7. Emergency Shutdown and Process Safety
Fire protection should not operate independently from process safety.
When a hazardous condition is detected, the refinery may need to isolate equipment, stop product flow, depressurise systems or shut down specific operations.
Safety instrumentation plays an important role in this process.
OISD’s standards list includes requirements for safety instrumentation in hydrocarbon industry process systems as well as inspection and maintenance of safety instrumentation.
This demonstrates why refinery fire safety is broader than installing fire alarms or extinguishers. The goal is to prevent escalation.
8. Fire and Security Systems
Modern refinery protection also involves security.
Unauthorised access, tampering, unsafe maintenance activity or unauthorised ignition sources can increase operational risk.
Depending on the facility’s security assessment, systems may include:
- Access control systems
- CCTV surveillance
- Perimeter monitoring
- Visitor management
- Vehicle access control
- Biometric security
- Security control rooms
- Emergency communication systems
Security systems should work alongside fire and emergency response systems rather than operating as completely separate functions.
For example, access control can help restrict entry into hazardous zones, while CCTV can support incident verification and emergency coordination.
9. Role of Safety Officers and Facility Managers
Technology is only effective when people know how to use it.
Safety officers should regularly review:
- Firewater availability
- Pump performance
- Hydrant condition
- Alarm functionality
- Detection coverage
- Suppression systems
- Emergency exits
- Fire extinguishers
- Passive fire protection
- Emergency response procedures
- Inspection records
- Training status
Petroleum Rules, 2002 require refinery personnel to be trained in the use of first-aid and firefighting appliances, with selected personnel trained in firefighting. The rules also require inspection and testing of plant, instruments and equipment, including firefighting equipment, with records maintained.
This makes inspection and training an ongoing responsibility rather than a one-time compliance activity.
10. Regulatory Compliance in India
One of the most important requirements for refinery operators is understanding which regulations and standards apply to their facility.
Petroleum Rules, 2002
The Petroleum Rules, 2002 are administered by the Petroleum and Explosives Safety Organisation (PESO). PESO’s responsibilities include approval and inspection related to refineries, petrochemical and oil/gas processing plants, as well as safety requirements for petroleum installations.
OISD Standards
OISD develops safety standards specifically for India’s petroleum industry.
OISD-STD-116 covers fire protection facilities for petroleum refineries and oil/gas processing plants. Importantly, OISD states that this standard has been included in the Petroleum Rules, 2002.
Other relevant standards cover areas such as oil storage and handling, hazardous-area electrical classification, fire-fighting equipment, inspection of fire-fighting systems, storage tanks and safety instrumentation.
National Building Code
The National Building Code of India 2016 (NBC 2016) includes provisions related to fire and life safety, building services, construction safety and facility management. Its application should be considered alongside industry-specific requirements where relevant.
Because refinery compliance can involve multiple regulations, operators should always verify the latest applicable editions and requirements for their specific installation.
Fire Safety Compliance Checklist for Oil Refineries
A practical refinery fire safety review can include the following:
Why Continuous Inspection Matters
Fire protection systems can deteriorate over time.
Corrosion, blocked nozzles, damaged hydrants, failed detectors, valve problems or pump failures may remain unnoticed until an emergency occurs.
This is why inspection should be treated as part of the refinery’s operational safety program.
OISD conducts external safety audits across several petroleum-sector installations to assess safety measures, identify non-compliance and highlight areas for improvement.
For facility managers, this means that compliance should not be viewed simply as preparing for an audit. The objective should be maintaining reliable protection every day.
Conclusion
Fire safety in an Indian oil refinery requires a layered protection strategy.
Fire alarms and detection systems provide early warning. Fire hydrant systems and firewater networks provide the water needed for emergency response. Fire suppression systems help control fires. Passive fire protection protects structures and critical equipment. Security systems help control access and monitor the facility. Training, inspection and emergency planning connect all these layers.
For Indian refineries, OISD-STD-116 and the Petroleum Rules, 2002 are particularly important references for fire protection requirements. Operators should also evaluate other applicable OISD standards, PESO requirements, NBC provisions and site-specific regulations.
As fire and security technologies continue to develop, industry professionals can also explore new detection, suppression, monitoring and security solutions at events such as the Fire & Security India Expo 2027. Such events provide an opportunity for safety officers, facility managers, refinery professionals and technology providers to understand emerging solutions for industrial fire and security challenges.
Note: This article is intended for general industry education and SEO/GEO/AEO purposes. Refinery operators should verify the latest applicable regulations, OISD standards, PESO requirements and site-specific approvals before making design or compliance decisions.