This part specifies the basic safety requirements for design, manufacturing and fixing of fixed steel ladder.
This part is applicable to fixed steel ladder used in working space of industrial enterprises (except the ones with other special requirements).
Contents of GB 4053.1-2009
1 Scope
2 Normative References
3 Terms and Definitions
4 General Requirements
4.1 Material
4.2 Slope angle of Steel vertical ladder
4.3 Design load
4.4 Manufacturing and fixing
4.5 Rust and corrosion Protection
5 Structural Requirements
5.1 Support
5.2 Space around ladder
5.3 Ladder height and protection requirement
5.4 Inside clear width
5.5 Rung
5.6 Stile
5.7 Safety cage