The most popular safety-related Australian Standard of all time, AS1657, has been revised for the first time in 20 years and is open for public comment until September 21. The document, which covers the selection, design, risk assessment and testing of fixed platforms, walkways, stairways and ladders has more than doubled in size from 30 pages to 75. There’s more detail and substantial new requirements. Here, member of the AS1657 committee, Carl Sachs, explains the major changes. Selection of the means of access Step ladder, rungs or staircase? The revised standard helps make the choices clear and assists designers to meet their responsibilities under the recently released Code of Practice for Safe Design of Structures. Its hierarchical approach is summarized in Figure 2.1.
Australian Standard AS 1657-1992 Fixed Platforms, Walkways, Stairways and Ladders - Design, Construction and Installation - Victoria. AS 1657-2013 Fixed Platforms, Walkways, Stairways and Ladders - Design, Construction and Installation. Steps and stairs must now comply with the Building Code of Australia. AS 1657- 2013: Fixed platforms. DOC-Live: australian standard 1657 - Online Free Unlimited pdf. Cios Installer For Wii 4.3e. Standards Australia is an independent, not-for-profit organisation, recognised by the Australian Government as the peak non-government Standards body in Australia.
In short, use access equipment with lesser inclines rather than steep ones wherever practicable. Use stairways at an incline of 20 to 45 degrees, for example, before using step type ladders. Similarly, use a step type ladder at 60-70 degrees in preference to a rung type ladder.
Step type ladders are designed to let users’ legs do the work and on level 100mm treads, while rungs at more severe inclines may be as thin as 20mm. Ocr Omnipage Rapidshare Library. So, what does “practicable” mean? Definitely not cost but it could be space constraints. A 3-metre step type ladder takes up around 1100mm on the ground when clearances are considered and a vertical rung ladder takes up around 900mm of floor space.