1. When might you need to install a horizontal lifeline?
Anytime you need to perform high-altitude tasks that involve horizontal movement, and there isn’t an appropriate spot to attach a safety harness.
2. How should you plan the layout of a horizontal lifeline?
It’s best to design it based on the user's specific movement path to ensure maximum safety and coverage.
3. How do you decide the length and quantity of a horizontal lifeline?
Firstly, determine the length according to the user’s trajectory, but each individual lifeline should ideally not exceed 200-300 meters in length. If possible, split longer sections into two parts for safety reasons. Secondly, consider the actual conditions of the installation site. If there are obstacles or significant height differences exceeding 15°, and the installation costs are too high, dividing the lifeline into multiple segments is recommended.
4. How many people can use a single horizontal lifeline at once?
A horizontal lifeline system consists of a main line and personal gear. The main line refers to the horizontal lifeline installed on-site, while personal equipment includes lifeline sliders, connectors (such as speed differential devices or connection ropes), and harnesses. The number of users depends on the number of individuals, who can switch between different main lines (e.g., Line A and Line B) freely without needing a one-to-one correspondence with the main lines. However, the maximum number of users for a single main line should not exceed four people.
5. What are the current standards for horizontal lifelines?
The national standard is GB 38454, and the European standard is EN795-C.
6. Can a horizontal lifeline be secured with just one end of the steel cable?
No, because the horizontal lifeline experiences shear forces. Based on physical and mechanical principles, the force exerted on the cable and its anchor points during a fall could be tens of times greater than the impact force of the falling person. To prevent the cable from loosening and to absorb some of the impact force, a shock absorber must be installed. Additionally, a tensioning device with a shock-absorbing feature and a tension indicator should also be included.
7. Can you keep using the horizontal lifeline after someone has fallen?
No, it must be thoroughly inspected by professionals, and any damaged components must be replaced before it can be used again.
8. Should you conduct a fall test after installing the horizontal lifeline? If not, how can you ensure its reliability?
It’s not recommended to perform a fall test. Testing one line (say, Line A) doesn’t guarantee the reliability of another line (Line B). Instead, it’s better to choose a certified lifeline product. For more detailed inquiries, contact professional technical support at 13488814699.
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In real-world scenarios, the installation of a horizontal lifeline requires careful planning and adherence to safety standards. Whether it’s for construction work, maintenance, or other high-risk activities, ensuring the correct setup and usage is critical. Remember, the primary purpose of these systems is to protect workers and prevent accidents. Always prioritize safety over convenience or cost savings.
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