Electrostatic Hazards Prevention
Effective strategies for mitigating static electricity risks in fuel transfer operations
Preventing electrostatic hazards in transfer fuel tanks requires targeted measures to control static generation, ensure effective static dissipation, and avoid conditions that could trigger ignition—all to mitigate the risk of sparks that may ignite fuel vapors.
Control Static Generation
- Optimize material selection by choosing conductive materials like certain grades of steel or conductive polymers
- Avoid non-conductive materials that trap static charges
- Minimize fuel flow velocity during transfer to reduce friction
- Use wide-diameter hoses and ensure steady, gentle flow
- Avoid rapid or turbulent fuel movement that increases static buildup
Ensure Reliable Static Dissipation
- Implement proper grounding to connect the tank to the earth
- Use dedicated grounding cables with secure clamps
- Attach to clean, unpainted parts of the tank (avoid rusted or coated surfaces)
- Bond all components together in multi-part systems
- Regularly inspect grounding and bonding equipment for wear or damage
Avoid Ignition Sources
- Keep open flames, hot surfaces, and electrical devices away during transfer
- Ensure proper vent system function to release fuel vapors
- Use non-sparking tools made from brass or non-ferrous alloys
- Prevent spark generation even when static charges are present
Implement Operational Best Practices
- Train operators to recognize static hazard risks
- Follow proper procedures like grounding before transfer
- Avoid sudden stops or starts that disrupt fuel flow
- Avoid transferring fuel in dry, low-humidity environments
- Maintain moderate humidity levels to help control charge buildup
By combining these material, grounding, ignition control, and operational measures, electrostatic hazards in transfer fuel tanks can be effectively prevented.
