{"id":4062,"date":"2022-01-31T23:22:27","date_gmt":"2022-01-31T23:22:27","guid":{"rendered":"https:\/\/kursy-udt.pl\/?p=4062"},"modified":"2022-07-31T23:35:31","modified_gmt":"2022-07-31T23:35:31","slug":"stepping-out-of-platforms-at-height","status":"publish","type":"post","link":"https:\/\/kursy-udt.pl\/en\/wychodzenie-z-podestow-na-wysokosci\/","title":{"rendered":"Exiting from platforms at height"},"content":{"rendered":"
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Walking off mobile platforms at height is generally prohibited. Is it always? What is the practice? This is an issue currently faced by, among others, companies installing and servicing cranes. In a series of two articles, the authors will take a closer look at what this looks like in practice and in light of the legal and OHS<\/a>.<\/p>\n

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The Haulotte manufacturer's DTR does not provide for the possibility of leaving the basket at a height
\nPhoto Haulotte<\/center><\/div>\n
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Some have certainly seen a scene in which several service technicians put together the so-called Warsaw scaffolding, and after assembly, it enters the damaged crane bridge. It happened in the 90s. At that time, however, it was a rather rare case, because the existing halls were equipped with longitudinal galleries, which allowed for safe entry to the track, and then to the crane bridge at any point of its stopping. Along with the increase in investments, a trend, generally popular in Western countries, appeared, consisting in the elimination of galleries along the track, especially in situations where the level of the track did not exceed the height of 6 m. This significantly reduced the investment costs. Access to the operation and maintenance of cranes was secured by purchasing a slow-moving mobile platform, which was used to operate many cranes and perform all the works necessary for maintenance. For 25 years, these solutions have dominated the design of the hall structures and resulted in the elimination of platforms from double-girder cranes installed in low-height halls. Along with them, however, another problem appeared in companies assembling and servicing cranes: How to safely enter the crane bridge or the subgrade from the mobile platform? not allowed. It is hardly surprising, because mass-produced platforms must limit the spectrum of threats to foreseeable situations.<\/p>\n

Construction companies using platforms for construction and assembly works in their OHS instructions prohibit work in inclination outside the basket, and if such a need arises, the employee must be equipped with individual fall protection equipment and indicate anchoring points.<\/p>\n

The vast majority of manufacturers of mobile platforms do not take into account the possibility of leaving the basket in their design solutions. Climbing over the protective railings of the basket increases the risk even more. Dynamic introduction of load on the side of the cage may generate a torsional moment, which may lead to the boom twisting or loss of platform stability. Another problem is the behavior of the hydraulic system in the event of dynamic loads.<\/p>\n

The Technical Supervision Authority is of the opinion that the device should be used in accordance with its intended purpose. Therefore, if the manufacturer clearly indicates in the operation and maintenance documentation that leaving the platform is not allowed, it means that this recommendation should be followed.<\/p>\n

In practice, however, there are a number of situations in which the exit from the mobile platform is often the only or the safest solution. They are, for example:<\/p>\n