Resistance to Explosion Pressure According to EN 13123:2001
EN 13123:2001 is the European standard that defines the classification system for resistance to explosion pressure properties of windows, doors, and shutters. The standard establishes resistance classes (EXC1 to EXC5), each representing different levels of protection against explosion pressure.
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Resistance Classes Overview
EXC1 (Explosion Resistance Class 1)
Basic protection against:
- Low pressure explosions
- Basic blast resistance
- Standard explosion threats
EXC2 (Explosion Resistance Class 2)
Enhanced protection against:
- Medium pressure explosions
- Enhanced blast resistance
- Standard explosion threats
EXC3 (Explosion Resistance Class 3)
High protection against:
- High pressure explosions
- Advanced blast resistance
- Enhanced explosion threats
EXC4 (Explosion Resistance Class 4)
Very high protection against:
- Very high pressure explosions
- Maximum blast resistance
- Advanced explosion threats
EXC5 (Explosion Resistance Class 5)
Maximum protection against:
- Maximum pressure explosions
- Ultimate blast resistance
- Maximum explosion threats
Testing Requirements
Each resistance class is tested against:
- Multiple pressure pulses
- Different explosion scenarios
- Various pressure durations
- Structural integrity maintenance
- Fragment control
Components Tested
Testing includes assessment of:
- Frame construction
- Panel materials
- Hardware components
- Sealing systems
- Installation methods
Application Guidelines
Recommended applications by class:
- EXC1-EXC2: Basic security, low-risk areas
- EXC3: Standard security, medium-risk areas
- EXC4: High security, high-risk areas
- EXC5: Maximum security, critical infrastructure
Safety Requirements
- Emergency egress compliance
- Fire safety standards
- Accessibility requirements
- Maintenance access
- Emergency response procedures
Important Considerations:
- Classification must match security requirements
- Higher classes require increased maintenance
- Insurance requirements may dictate minimum class
- Local regulations may specify minimum standards
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