Anti-Intruder Fence

Anti-intruder fenceis widely used in the airport, highway, railway, forest farm, factory and other places for security protection. It has chain link mesh and welded wire mesh types for choice. The top and bottom can be installed with the barbed wire or razor bared wire to prevent intruders from climbing into the areas.

Welded wire mesh

The material of anti-intruder welded wire mesh is zinc coated steel wires, which conform to BS EN 10223-4. Both of the two materials can supply high corrosion and rust resistance performance for the welded anti-intruder fence. Additional, they can extend the service life of anti-intruder fence and save the maintenance cost.

The height of welded wire mesh is commonly 2.4 m if it is not buried and 2.7 m if it is buried. Sometimes, the plastic coated welded wire mesh will be separated into two pieces, the two panels will be overlapped horizontally by a minimum of two complete meshes.

The welded anti-intruder fence can be connected with different posts, including intermediate post and straining post. The intermediate post has different styles according to the crank type. The main types are inward cranked type, outward cranked type, straight type and double extension arm type.

There are four line wires evenly spaced on the welded wire mesh fence. The bottom wire is close to the ground and the top wire is not more than 50 mm below the top horizontal of the mesh for 50 mm meshes and not more than 75 mm below the 75 mm horizontal meshes. The line wire is 3 mm diameters and conform to BS EN 10223-6 or BS 4102 standard. Stirrup wire is used for securing line wires to intermediate post, which conform to BS 4102 standard with a 2.5 mm diameters. The tying wire is used for securing mesh to line wires, which conform to BS 4102 standard with a nominal 1.6 mm diameter.

Additional, the barbed wires are installed top or both top and bottom of the welded wire mesh to prevent intruders from entering the area and improve the safety factor. The barbed wire conform to BS EN 10223-6 standard.

Specifications of welded wire mesh

• Material: zinc coated wire or organic coated wire.
• Wire diameter:
  • Zinc coated wire: 3 mm.
  • Plastic coated wire: 3/4 mm.
• Mesh size: 50 mm × 50 mm or 75 mm× 25 mm.
• Line wire diameter:
  • Zinc coated wire: 3 mm.
  • Plastic coated wire: 3/4 mm.
• Stirrup wire diameter:
  • Zinc coated wire: 2.5 mm.
  • Plastic coated wire: 2.5/3.5 mm
• Tying wire diameter:
  • Zinc coated wire: 1.6 mm.
  • Plastic coated wire: 1.6/2.6 mm
• Height:
  • 2.4 m if it is not be buried.
  • 2.7 m if it is to be buried.
• Post type: intermediate post and straining post.

Chain link mesh

The chain link mesh anti-intruder fence is made of zinc or class A zinc alloy coated wire conforming to BS EN 10223-6 or organic coated wire conforming to BS EN 10223-6.

Chain link mesh is commonly fastened onto the post, such as intermediate post and straining post. Then the barbed wire or razor barbed wire will be attached onto the top and bottom of the fence to resist intruders. line wire is attached top and bottom of the chain link mesh to ensure the structure and increase strength. Line wire is mild steel wire, which is conform to BS 4102. The stirrup wire is used for securing the line wires to intermediate post, which is mild steel conforming to BS 4102. The tying wire is used for securing mesh to line wires, which is mild steel wire conforming the BS 4102.

Specifications of chain link mesh anti-intruder fence

• Material: zinc coated wire or organic coated wire.
• Wire diameter:
  • Zinc coated wire: 3.55 mm or 5.00 mm.
  • Plastic coated wire: 3.55/4.75 mm or 4.75/6.40 mm.
• Mesh size: 40 mm × 40 mm or 50 mm× 50 mm.
• Line wire diameter:
  • Zinc coated wire: 4.5 mm or 5.0 mm.
  • Plastic coated wire: 3.55/4.75 mm or 4.75/6.40 mm.
• Stirrup wire diameter:
  • Zinc coated wire: 2.5 mm.
  • Plastic coated wire: 3.55 mm
• Height:
  • 2.4 m if it is not be buried.
  • 2.7 m if it is to be buried.
• Post type: intermediate post and straining post.

The chain link mesh anti-intruder fence can be connected by different post types: intermediate post and straining post. The intermediate post is installed with inward cranks, outward cranks, straight or double extension arms for easy installation of barbed wire.

1 - Barbed wire.
2 - Double line wire.
3 - Chain link or welded mesh infill.
4 - Ground level.
5 - Barbed top or barbed wire.
6 - Concrete.
7 - Mesh buried or barbed and fastened to sill.

The inward cranked and outward cranked intermediate post should not be installed on the site boundary line.

For improved security, double extension arms should be used.

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