Primary Security Line (PSL) Chain-Link Fence Project for airports is a critical infrastructure initiative designed to enhance security by establishing a robust and reliable perimeter around sensitive airport areas. This type of fence is characterized by its durable construction, typically made from galvanized steel, ensuring long-lasting protection against unauthorized access. The PSL chain-link fence is ideal for creating secure boundaries while maintaining visibility, allowing security personnel to monitor the area effectively. It is widely used for securing airfields, terminals, and restricted zones, providing a physical barrier that deters intrusions and enhances safety protocols. The project involves the installation of high-quality, corrosion-resistant chain-link fencing that meets industry standards, offering a versatile and cost-effective solution for airports to safeguard both their facilities and operations.

Materials

• Fabric: Woven with 9-gauge galvanized steel wire in a 2-inch (50 mm) mesh, meeting ASTM A392, Class 2.
• Razor Wire: Concertina razor wire, 2-strand 12-1/2 gauge zinc-coated, conforming to ASTM A121, Class 3, Chain Link Fence Grade.
• Posts, Rails, and Braces:
  

  	Galvanized tubular steel pipe (ASTM F-1043 or F1083): with Type A coating, or with Type B external and Type B or D internal coatings.
  	For aluminum alloy fabric: Posts, rails, and braces shall be made of aluminum alloy or composite.
  	Other materials (except galvanized steel and aluminum alloy) must pass a 1,000-hour salt spray test (ASTM B117) with a maximum of 5% red rust externally and 650 hours with a maximum of 5% red rust internally.

• Wire Ties and Tension Wires: Wire ties shall match the fabric material and coating. Top and bottom tension wire: 7-gauge marcelled steel wire, coated to match the fabric, conforming to ASTM A824.
• Miscellaneous Fittings and Hardware: Commercial-grade steel or better, wrought or cast, with sufficient strength. Zinc coating shall conform to ASTM A153. Razor barbed wire support arms must withstand a 250-pound (113 kg) vertical load.
• Concrete: Commercial grade with a minimum 28-day compressive strength of 3,000 psi (17,240 kPa).
• Marking: Fabric rolls shall be tagged with base metal, coating, wire gauge, length, and manufacturer. Posts, wire, and fittings shall be identified by base metal, and coating.