This standard specifies technical conditions for the safety of fixed ladders and relevant platform, safety cage, safety door, etc. related to safe use.
This standard is applicable to fixed ladders used as fixed facilities for entering into the machinery.
2 Normative References
The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the normative document (including any amendments) applies.
GB/T 8013.1-2007 Anodic Oxide Coatings and Organic Polymer Coatings on Aluminium and its Alloys - Part 1: Anodic Oxide Coatings
GB/T 12467 (All Parts) Quality Requirements for Fusion Welding of Metallic Materials
GB/T 13912 Metallic Coatings - Hot Dip Galvanized Coatings on Fabricated Iron and Steel Articles - Specifications and Test Methods
GB/T 15706-2012 Safety of Machinery - General Principles for Design - Risk Assessment and Risk Reduction
GB 17888.2 Safety of Machinery - Permanent Means of Access to Machinery - Part 2: Working Platforms and Walkways
GB 17888.3-2008 Safety of Machinery - Permanent Means of Access to Machines and Industrial Plants - Part 3: Stairways, Stepladders and Guard-rail
GB 17888.4-2008 Safety of Machinery - Permanent Means of Access to Machinery - Part 4: Fixed Ladders
GB/T 17889.2 Ladders - Part 2: Requirements, Test, Marking
GB/T 19355 Protection Against Corrosion of Iron and Steel in Structures - Zinc and Aluminum Coatings - Guidelines
GB/T 22086 Recommendations for Welding of Aluminium and Aluminium Alloys
GB 24537-2009 Personal Fall Protection Equipment - Guided Type Fall Arrester Including a Flexible Anchor Line
GB 24542-2009 Personal Fall Protection Equipment - Guided Type Fall Arrester Including a Rigid Anchor Line
GB 24544-2009 Personal Fall Protection Equipment - Retractable Type Fall Arrester
GB/T 31255-2014 Safety of Machinery - Safety Specification for the Design of Industrial Type Stairs, Working Platforms and Walkways
ISO 12944 (All Parts) Paints and Varnishes Corrosion Protection of Steel Structures by Protective Paint Systems
3 Terms and Definitions
For the purpose of this standard, terms and definitions defined in GB/T 15706-2012 and GB 17888.4-2008 as well as the following ones apply.
3.1
Safety cage
A kind of combined type frame restricting the falling risk of personnel from straight stairs, see Figures 1, 2, 3 and 4.
