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Semiconductor Explosion-Proof Design: FM 1-44
With the rapid development of the semiconductor industry, the importance of safety design in facilities, especially the design of explosion-proof zones, has become increasingly prominent. This article delves into the key elements of explosion-proof zone design in semiconductor facilities, focusing particularly on the design requirements and practices for Explosion Venting Fasteners, Traction Cables, and Fire Explosion Resistant Walls, aiming to provide a comprehensive and professional reference for the industry.
Explosion Venting Design
Explosion venting design is a crucial component of explosion protection systems, requiring precise calculations and comprehensive considerations. According to FM 1-44 standards, building technical regulations in Chapter 3, Section 4 of building design and construction fire zoning management rules, and practical application experiences, explosion venting design should consider the following key factors:
- Basic Explosion Venting Pressure Calculation Value: 0.96 kPa (approximately 0.14 psi)
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Explosion Venting Panel Weight Limitations:
- FM 1-44 standard recommendation: Should not exceed 3 lb/ft² (14.6 kg/m²)
- Fire resistance requirement consideration: Allowable up to 8 lb/ft² (39 kg/m²)
- Wind Speed Factors: Adjustments based on FM RoofNav calculations
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Fire Resistance Requirements:
- Explosion venting walls (external walls): 1-hour fire resistance rating
- Explosion venting roofs: 0.5-hour fire resistance rating
Material Selection and Application
Rock Wool Sandwich Panels
Combined with Explosion Venting Fasteners, these are currently a common solution for explosion venting roofs and walls internationally:
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Advantages:
- High economic efficiency
- Mature waterproof technology
- Strong multifunctionality
- Easy installation
- Application: Suitable for large-area roof and external wall explosion venting design
Explosion Venting Fasteners
Used in conjunction with rock wool sandwich panels to ensure effective pressure release during explosions:
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Components:
- Explosion venting washer
- Explosion venting fastener
- Positioning sleeve
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Technical Specifications:
- Explosion venting washer breaking force: Standard value of 700N, FM certified
- Static pressure design range for explosion venting: 0.96 to 1.92 kPa
Wind Speed Considerations
When designing explosion venting pressure values, local wind speed conditions must be considered to prevent the explosion venting structure from being blown away under adverse weather conditions:
- Use FM RoofNav tools to calculate local wind pressure values
- Use wind pressure values as the minimum parameter for designing explosion venting pressure values
- Ensure that the final designed explosion venting pressure value is not lower than wind pressure values and does not exceed the upper limit specified by FM 1-44 standards
Traction Cable Design
Traction Cables are used to prevent explosion venting panels from completely detaching in emergencies:
- Material: SUS304 stainless steel
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Specifications:
- Diameter: 6mm
- Length: 900mm
- Breaking strength exceeds 20kN
- Installation: Two cables per panel section measuring every 3 feet (0.9 meters) wide and 15 feet (4.6 meters) high
Fire Explosion Resistant Walls Design
Fire Explosion Resistant Walls are critical barriers in explosion-proof zoning:
- Material: Stamped Metal Composite Panels are recommended to meet both fire and explosion resistance requirements
- Fire Performance: Achieves up to a 3-hour fire resistance rating, CNS test certified
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Explosion Resistance Design:
- Design pressure not less than 4.8 kPa (approximately 0.7 psi)
- Recommended actual explosion resistance capability of at least 1.5 psi (approximately 10.3 kPa)
- Application: Fire explosion resistant walls and ceilings
Conclusion
The design of explosion-proof zones in semiconductor facilities is a complex and important engineering task. By meticulously designing Explosion Venting Fasteners, Traction Cables, and Fire Explosion Resistant Walls, while strictly adhering to FM Global standards and incorporating the latest composite Stamped Metal Composite Panel technology, overall facility safety performance can be significantly enhanced. Additionally, balancing explosion venting efficiency with fire performance is crucial in selecting the most suitable solutions.
As an industry leader and manufacturer certified by FM for Explosion Venting Fasteners, Traction Cables, and three-hour Fire Explosion Resistant Walls, Lian Suo Architectural Technology Co., Ltd. is committed to providing safer and more reliable explosion-proof solutions for the semiconductor industry to promote safe development within the sector.
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