Development of a Korean Safety Ladder With Ensured Overturning Stability

IF 3.5 3区医学 Q1 PUBLIC, ENVIRONMENTAL & OCCUPATIONAL HEALTH

Safety and Health at Work Pub Date : 2025-03-01 DOI:10.1016/j.shaw.2024.11.005

Giyeol Lee , Jeongjae Park , Ilnam Lee , Jongmoon Hwang

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引用次数: 0

Abstract

Background

We have developed the Korean safety ladder as part of development of new safety technologies that can be accepted in industrial sites and would like to introduce the testing process to secure safety.

Methods

The test load and horizontal force prescribed by ANSI A14.7 and EN131-7 standards for only the overturning stability test were applied to calculate the weight required for securing overturning stability according to standards and installation of outrigger with the variables of the height of platform, the angle of inclination of the worker, and the size of the platform.

Results

The weight of a Korean safety ladder required for securing overturning stability according to the height is as follows: as mentioned by the ANSI A14.7, it is stable regardless of the weight when an outrigger. By the EN131-7 standard, a 5-step ladder is stable regardless of the weight, but 54 kg or more of weight is required for an 8-step ladder when an outrigger is installed. When there is no outrigger, 122 kg and 251 kg are required for 5-step and 8-step ladders, respectively.

Conclusion

It is necessary to restrict inclined working on the platform at less than 66° of inclination angle by the EN131-7 standards and secure 43 kg or more of weight in the minimum width of a platform of 400 mm or expand the ladder width or open length of the outrigger.

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来源期刊

Safety and Health at Work Social Sciences-Safety Research

CiteScore

6.40

自引率

5.70%

发文量

1080

审稿时长

38 days

期刊介绍： Safety and Health at Work (SH@W) is an international, peer-reviewed, interdisciplinary journal published quarterly in English beginning in 2010. The journal is aimed at providing grounds for the exchange of ideas and data developed through research experience in the broad field of occupational health and safety. Articles may deal with scientific research to improve workers'' health and safety by eliminating occupational accidents and diseases, pursuing a better working life, and creating a safe and comfortable working environment. The journal focuses primarily on original articles across the whole scope of occupational health and safety, but also welcomes up-to-date review papers and short communications and commentaries on urgent issues and case studies on unique epidemiological survey, methods of accident investigation, and analysis. High priority will be given to articles on occupational epidemiology, medicine, hygiene, toxicology, nursing and health services, work safety, ergonomics, work organization, engineering of safety (mechanical, electrical, chemical, and construction), safety management and policy, and studies related to economic evaluation and its social policy and organizational aspects. Its abbreviated title is Saf Health Work.