The use of dense security network legislation

1. Safety nets must be installed beneath all high-level work areas. When the building height exceeds 4 meters, a safety net should be set up in line with the wall and extended as the structure rises. A fixed safety net must be placed every 4 meters thereafter. Both the upper and lower openings of the outer frame and bridge type structures must be equipped with safety nets. The installation of safety nets should follow a low-to-high principle, with the difference in elevation generally around 50 cm. The supporting rods must not be broken or bent. The gap between the inner edge of the net and the wall surface should be less than 15 cm. The lowest point of the net must be at least 3 meters above the object below. The support system for the safety net must be properly erected. Wooden poles used for support must have a small end diameter of at least 7 cm, while bamboo poles must have a minimum small end diameter of 8 cm. The spacing between the support poles should not exceed 4 meters.

2. Before use, the safety net should be inspected for signs of corrosion or damage. During construction, it is essential to ensure that the safety net remains intact and effective, with proper support and even stress distribution. No debris should be present within the net. The seams must be tightly secured without any gaps. Safety nets must not be removed or damaged during construction. Any removal must be authorized by the installation unit beforehand. If temporary removal is necessary due to construction requirements, the construction unit must notify and obtain approval from the installation unit before proceeding. Once the construction is completed, the safety net must be immediately restored as required and can only be used after passing inspection by the installation unit.

3. Debris inside the net should be regularly cleaned. When welding operations are performed above the net, effective measures must be taken to prevent sparks from falling onto the net. In areas exposed to long-term acid-alkali smoke, special attention should be given to the condition of the net to prevent degradation.

4. Safety nets must be inspected regularly during use, and a record of their usage should be maintained. Any net that does not meet the required standards must be replaced promptly. When not in use, the safety nets should be stored properly to prevent mildew and deterioration. Before using a new net, the product's nameplate should be checked to determine whether it is a horizontal or vertical net. Vertical and horizontal nets must be strictly separated, and a horizontal net must never be used as a vertical one. The net should be securely tied at the bottom. Ensure the manufacturer has a valid production license and a factory certificate. If an old net is being reused, it should be tested before use, and a test report must be available. Only nets that pass the test can be used again.

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