Acceptance criteria for the chain link fence

The hook flower net guardrail is beautiful and durable, maintenance-free, simple to install, and has good protection, decoration and beautification effects.

 

Understand the acceptance criteria of the chain link fence

 

1. The end of the easily accessible pipe shall be sealed with parts or pipe plugs and shall not be disassembled except for the use of tools.

 

2. The installation of the chain link fence should ensure stable and reliable, and there should be no loosening of the basic components and support members.

 

3. The installation method is directly buried. The depth of the column buried in the ground should be no less than 400mm. The horizontal dimension of the concrete foundation should be no less than 400mm×400mm; the concrete foundation pit for installing the fence should not be the upper and lower shape.

 

4. The concrete strength of the foundation of the plywood column should not be lower than C20. The supporting columns and main body should be perpendicular to the horizontal installation ground, and the vertical tolerance should be no more than 1/100.

 

5. The ground installation of the purse seine shall be pre-buried, and the embedded parts shall not be higher than the ground; the uprights shall not be fixed by the expansion bolts.

 

6. Cage sports equipment has at least 2 entrances and exits, which can be double-opened (appearing to the atmosphere) or single-opening.

 

7. Within the height of the ground 2000, the fence should not have a structure that can be climbed.

 

8. The height of the fence of the tennis court should be no less than 6 meters, the next 4 meters for the PE network, and the second meter for the soft net.

9. The layout of the fence and the column should ensure sufficient rigidity and stability. The diameter of the steel pipe mainly supporting the column should be not less than 76mm, the thickness of the pipe wall should be not less than 3mm, and the interval between the columns should be no more than 3 meters. The diameter of the horizontal pipe of the Japanese-shaped purse seine should be not less than 60mm, and the thickness of the pipe wall should be not less than 3mm.

 

The surface treatment process of the column and the connecting piece should be: shot blasting-defattting-phosphating-electrostatic spraying. The coating thickness is not less than 0.9 mm and the coating should be firmly adhered. The surface treatment process is very important. The fence is outdoor, sun and rain, and the surface treatment process is directly related to the service life and safety of the fence.

 

10. The standard value of the wind load of the purse seine should not be less than 0.35 kN/m2.

 

11. If there is a fence mesh, the fence mesh shall be treated by plastic coating and dip coating. After processing, the wire diameter of the mesh shall be not less than 4mm, and the wire diameter before treatment shall be not less than 3mm. The purse mesh aperture should be selected to be less than or equal to 45*45 to prevent the ball from coming out.

 

Be careful when selecting the plastic mesh. Be sure to choose PE plastic mesh. The steel wire inside should be galvanized (this is a direct impact on the service life of the fence, which can not be cheap, resulting in higher cost of use). Nowadays, PVC or recycled materials are used in the market at low prices. In the spring, summer, autumn and winter seasons, all cracks are used. The wire inside is not galvanized steel wire. When the surface is cracked, it will start to rust and will not be used soon.