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

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Scope

This Part of GB/T 17888 gives requirements for fixed ladders which are a part of a stationary
machine, and to the non-powered adjustable parts (e.g., foldable, slidable) and movable parts
of fixed ladder systems.
NOTE 1: “Fixed” means of access are those mounted in such a manner (for example, by screws, nuts,
welding) that they can only be removed by the use of tools.
This Part specifies minimum requirements that also apply when the same means of access is
required as the part of the building or civil construction (e.g. fixed ladders) where the machine
is installed, on condition that the main function of that part of the construction is to provide a
means of access to the machine.
NOTE 2: Where no local regulation or standards exists, this Part may be used also for means of access
which are outside the scope of the standard.
It is intended that this Part be used with GB/T 17888.1 to give the requirements for fixed ladder
systems.
GB/T 17888 series as a whole is applicable to both stationary and mobile machinery where
fixed means of access are necessary. It is not applicable to powered means of access such as
lifts, escalators, or other devices specially designed to lift persons between two levels.

Basic Data

Standard ID	GB/T 17888.4-2020 (GB/T17888.4-2020)
Description (Translated English)	Safety of machinery. Permanent means of access to machinery - Part 4: Fixed ladders
Sector / Industry	National Standard (Recommended)
Classification of Chinese Standard	J09
Classification of International Standard	13.110
Word Count Estimation	49,444
Date of Issue	2020-11-19
Date of Implementation	2021-06-01
Older Standard (superseded by this standard)	GB/T 17888.4-2008
Quoted Standard	ISO 12100; ISO 14122-1-2016; ISO 14122-2-2016; ISO 14122-3-2016; EN 353-1-2014; EN 795
Adopted Standard	ISO 14122-4-2016, IDT
Regulation (derived from)	National Standard Announcement No. 26 of 2020
Issuing agency(ies)	State Administration for Market Regulation, China National Standardization Administration
Summary	This standard specifies the requirements for fixed straight ladders that are part of fixed machines, as well as non-powered adjustable (such as foldable, slidable) parts and movable parts of fixed straight ladder systems. The minimum requirements specified in this standard also apply to similar access facilities (such as fixed straight ladders) on the building where the machine is installed, provided that the main function of such facilities is for access to the machine. This standard is used in conjunction with the requirements specified in GB/T 17888.1 for fixed vertical ladder systems. GB/T 17888 is applicable to fixed machinery and mobile machinery equipped with fixed access facilities, but not applicable to powered access facilities, such as elevators, escalators or other specially designed to lift personnel between two levels Device.