1. **When is it necessary to install a horizontal lifeline?**
A horizontal lifeline becomes essential whenever high-altitude work requires lateral movement, and there’s no suitable location to attach a traditional safety harness. This setup provides a secure anchorage point while allowing workers to move freely across horizontal surfaces.
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2. **How should a horizontal lifeline be arranged?**
The arrangement should align with the worker's movement path. Proper planning ensures that the lifeline covers all necessary areas without hindering mobility. It’s crucial to consider the layout of the workspace to maximize safety and efficiency.
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3. **How do you determine the length and quantity of a horizontal lifeline?**
Firstly, the length depends on the distance covered during the worker’s trajectory. However, a single lifeline should ideally not exceed 200-300 meters in length. If the span is longer or if there are obstacles such as steep drops exceeding 15 degrees, dividing the lifeline into two sections is advisable. Additionally, on-site conditions like installation complexity and cost play a significant role in deciding whether to split the lifeline.
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4. **How many people can safely use a horizontal lifeline?**
Each horizontal lifeline system consists of a main lifeline and individual gear for each user. While the main lifeline anchors the system to the site, personal equipment—like lifeline sliders, connectors (speed differential devices, connecting ropes), and harnesses—is assigned to each worker. Workers can switch between different lifelines as needed, meaning the number of main lines doesn’t always need to match the number of users exactly. However, a single main lifeline should not support more than four individuals at once.
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5. **What are the current standards for horizontal lifelines?**
Adhering to national standards such as GB 38454 and international standards like EN 795-C ensures compliance and safety. These guidelines outline specifications for strength, durability, and proper usage of horizontal lifelines.
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6. **Can a horizontal lifeline be fixed with just one end of the steel cable?**
No. Horizontal lifelines endure significant shear forces during a fall, which can reach dozens of times the weight of the falling person. To mitigate this stress, shock-absorbing devices and tension indicators must be installed to prevent the cable from loosening and absorbing excessive impact forces.
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7. **Is it safe to reuse a horizontal lifeline after a fall?**
Absolutely not. After a fall, the lifeline must be thoroughly inspected by trained professionals. Any damaged components, including cables or connectors, must be replaced before the system is used again.
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8. **Do you need to conduct a fall test after installing a horizontal lifeline?**
It’s generally not recommended to perform fall tests unless absolutely necessary. Testing one lifeline (Line A) is sufficient, as it doesn’t guarantee the reliability of another (Line B). Instead, choosing a certified product ensures consistent quality and safety. For further clarification, feel free to contact technical experts at 13488814699.
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While these guidelines provide a foundation for using horizontal lifelines safely, every workplace has unique challenges. Consulting professionals ensures tailored solutions that prioritize worker safety above all else.
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