Table of Contents
Specifies requirements for the design, construction and installation of fixed means of access to, and safe working at places normally used by operating, inspection, maintenance and servicing personnel. Included in Appendices are methods for testing guardrails and posts, as well as typical component dimensions and spacings for guardrailing.
This Standard sets out requirements for the design, construction, and installation of fixed platforms, walkways, stairways, and ladders which are intended to provide means of safe access to and safe working at places normally used by operating, inspection, maintenance, and servicing personnel.
The Standard does not apply to situations where special provision is made in appropriate building or other regulations, e.g. means of escape from fire. Requirements for portable ladders are not included in this Standard.
The design, construction, and installation of a platform, walkway, stairway, or ladder shall comply with the appropriate requirements of Section 2 and the specific requirements for the type of structure, as follows: (a) Platforms and walkways: Section 3.
(b) Stairways: Section 4. (c) Fixed ladders: Section 5.
The application of the relevant Sections and the limits of slope are illustrated in Figure 1.1.
Where it is not reasonably practicable to meet the full requirements of this Standard, advice should be sought from the regulatory authority.
1 Some structures and vehicles will be unable to comply with all the requirements of this Standard. Special structures include radio masts, towers, portable on farm light-weight silos, and the like. Vehicles include road tankers, waste disposal trucks, and the like.
2 Structures and vehicles which are unable to comply with all the requirements of this Standard should comply with the relevant design Codes for loading.
First published as AS CA10-1938.
Second edition 1963.
Third edition 1966.
Fourth edition 1971.
Revised and redesignated AS 1657-1974.
Second edition 1985.
Third edition 1992.