Aerial work suspended platforms are indispensable temporary suspension equipment in building maintenance, cleaning, and high-altitude construction. Their design, manufacturing, installation, use, and management must strictly comply with national and industry technical standards to ensure operational safety. Currently, the main references are the national standard "GB/T 19155-2017 Aerial Work Suspended Platforms" and the industry standard "JB/T 11699-2025 Technical Regulations for Installation, Dismantling and Use of Aerial Work Suspended Platforms". The latter, implemented on November 1, 2025, fully replaces the old version JB/T 11699-2013.

 

Core design requirements cover multiple aspects. Structural stability must meet specific calculation requirements, such as a stability coefficient of not less than 3 for counterweight-type supports, and the calculation formula for the horizontal force of parapet clamps is Fh=2.5×10×Wll. The safety factor has been significantly improved, with the double-rope system increased from the previous standard of single rope ≥8 to ≥12. Load capacity requires the equipment to pass a dynamic test (25% overload of rated load) and a static test (50% overload of rated load). Environmental adaptability specifies that the equipment shall work normally at temperatures from -20℃ to +40℃, humidity not exceeding 90% (at 25℃), power supply voltage deviation within ±5%, and working gust wind speed not greater than 8.3m/s (Beaufort scale 5). The non-working state shall be checked according to a wind speed of 20m/s. Noise control limit is specified as not greater than 79 dB(A) (measured at a distance of 1 meter).

 

Safety devices and key components are the core of ensuring safety. The anti-fall device must comply with the impact force calculation formula Tm=2×Wll×g, and be calibrated regularly, with a validity period usually of 1 year. The non-powered descent device requires manual sliding to be sensitive and reliable, with a descent speed not greater than 1.5 times the rated speed. The electrical system should have a protection level (such as IP54) to adapt to outdoor humid environments.

 

Installation, use, and maintenance management must strictly implement specifications. The building structure must be able to bear the full load of the suspended platform. Safety anchoring rings or embedded bolts (with a diameter of not less than 16mm) shall be reserved during design, and safe access passages and power interfaces shall be provided. Operators and maintenance personnel must be trained and qualified personnel. Regular inspections include quarterly wire rope broken wire inspection (according to GB/T 5972 standard), weld inspection of key parts of structural components, and annual calibration of anti-fall devices. Safety management requires property rights, installation, and use units to jointly strengthen technical management, complying with local standards such as "DB22/T 5169-2024 Application Standard for Aerial Work Suspended Platforms in Construction".

 

In conclusion, the safe operation of aerial work suspended platforms relies on compliant design, correct installation, standardized operation, and continuous maintenance. All links must strictly abide by the latest standards to ensure personnel safety and smooth progress of the project. By following these requirements, accidents can be effectively prevented, and the reliability and efficiency of high-altitude operations can be improved.