Safety knowledge for working at height

High-altitude work is defined by national standards as any operation conducted at a height where the potential fall distance exceeds 2 meters (including 2 meters) from the reference plane. Such activities pose significant risks, as workers or objects may fall if proper safety measures are not in place. These incidents are categorized into two main types: high falls, where a person falls from an elevated position, and object strikes, where falling objects injure individuals below. Preventing these accidents has long been a top priority in construction site safety. There are five basic types of high-altitude operations commonly encountered on construction sites: edge work, opening work, climbing work, suspended work, and crossover work. Each presents unique hazards that must be addressed with appropriate safety protocols. Edge work involves tasks performed near the edge of a structure without sufficient protection. This includes areas like pit edges, floor perimeters, stairways, and scaffolding sides. If not properly secured, workers risk falling off these exposed areas. Opening work refers to tasks involving holes, shafts, or gaps that are 2 meters or higher. These openings can lead to serious injuries if not covered or guarded. For example, unguarded openings larger than 2.5 cm can cause falls or allow objects to drop onto people below. Climbing work involves ascending structures such as scaffolds, ladders, or equipment. Workers rely on handholds, foot hooks, or waist ropes for balance, making this type of work particularly dangerous if not done carefully. Suspended or vacant work occurs when there is no stable footing or support. This includes working on cantilevered slabs, hanging baskets, or during demolition. The lack of stability increases the risk of falls or accidents. Crossover work happens when multiple operations occur simultaneously across different levels of a construction site. This often involves materials being lifted or moved, which can result in falling objects or collisions if not properly managed. To ensure safety during high-altitude operations, several technical measures are essential. These include guardrails, covers, safety nets, and protective shelters. Before starting work, all personnel must receive safety training, and equipment must be inspected for proper function. Workers must wear personal protective equipment such as helmets, gloves, and harnesses. Additionally, high-risk conditions like strong winds, heavy rain, or fog should halt all outdoor high-altitude activities. Scaffolding plays a critical role in supporting high-altitude work. It must be erected and dismantled according to strict guidelines, ensuring stability and compliance with safety regulations. All components should be inspected regularly, and unauthorized modifications are strictly prohibited. Personal protective equipment (PPE), often referred to as the "three treasures," includes helmets, seat belts, and safety nets. These items are vital in preventing injuries from falls or falling objects. Proper use and maintenance of PPE are crucial for worker safety. In summary, high-altitude work requires careful planning, strict adherence to safety protocols, and continuous monitoring to prevent accidents. By implementing effective safety measures and fostering a culture of awareness, construction sites can significantly reduce the risks associated with elevated operations.

Ceramic Plunger Pump

The liquid inlet/outlet adopts a ceramic hard seal structure, the liquid is in contact with the ceramic throughout the entire process, and does not touch the stainless steel jacket. The ceramic parts of the liquid inlet/outlet can be disassembled for cleaning and disinfection like the ceramic plunger rod and the ceramic reversing rod, which completely solves the problem of cleaning the dead angle between the steel jacket and the ceramic.

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