GB/T 17888.4-2020
Safety of machinery—Permanent means of access to machinery—Part 4: Fixed ladders

Standard No.

GB/T 17888.4-2020

Language

Chinese

Release Date

2020

Published By

国家市场监督管理总局、中国国家标准化管理委员会

Lastest

GB/T 17888.4-2020

Replace

GB/T 17888.4-2008

Scope

This part of GB/T 17888 specifies the requirements for fixed ladders as part of stationary machines, and non-powered adjustable (such as foldable, slidable) and movable parts of fixed ladder systems. Note 1: "Fixed" access means means that after installation (such as by screws, nuts, welding), access facilities can only be removed using tools. The minimum requirements specified in this section also apply to similar access facilities (such as fixed ladders) on the building where the machine is installed, provided that the main function of such facilities is for access to the machine. Note 2: If there are no other standards, this section also applies to access facilities outside the scope of this section. This section is used together with the requirements specified in GB/T 17888.1 for fixed vertical ladder systems. GB/T 17888 applies to stationary machinery and mobile machinery equipped with fixed access facilities, and does not apply to powered access facilities, such as elevators, escalators or other devices specially designed to lift people between two levels . GB/T17888.4—2008 "Type Components" update 3.1, add the term "fixed vertical elevator system"

GB/T 17888.4-2020 Referenced Document

• ISO 12100 Safety of machinery - General principles for design - Risk assessment and risk reduction
• ISO 14122-1:2016 Safety of machinery - Permanent means of access to machinery - Part 1: Choice of fixed means and general requirements of access
• ISO 14122-2:2016 Safety of machinery - Permanent means of access to machinery - Part 2: Working platforms and walkways
• ISO 14122-3 Safety of machinery - Permanent means of access to machinery - Part 3: Stairs, stepladders and guard-rails

GB/T 17888.4-2020 history

• 2020 GB/T 17888.4-2020 Safety of machinery—Permanent means of access to machinery—Part 4: Fixed ladders
• 2008 GB/T 17888.4-2008 Safety of machinery - Permanent means of access to machinery - Part 4: Fixed ladders

GB/T 17888.4-2020 -All Parts