GB/T 17888.3-2020 (GB/T17888.3-2020, GBT 17888.3-2020, GBT17888.3-2020) & related versions
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Safety of machinery. Permanent means of access to machinery -- Part 3: Stairs, stepladders and guard-rails
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GB/T 17888.3-2020
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GBT 17888.3-2020
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| GB 17888.3-2008 | English | 639 |
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[GB/T 17888.3-2008] Safety of machinery -- Permanent means of access to machinery -- Part 3: Stairs, stepladders and guard-rails
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| GB 17888.3-1999 | English | 359 |
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Safety of machinery--Permanent means of access to machines and industrial plants-- Part 3: Stairways, stepladders and guard-rail
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GB/T 17888.3-2020
GB
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 13.110
J 09
GB/T 17888.3-2020 / ISO 14122-3:2016
Replacing GB/T 17888.3-2008
Safety of Machinery – Permanent Means of Access to
Machinery – Part 3: Stairs, Stepladders and Guard-Rails
(ISO 14122-3:2016, IDT)
ISSUED ON: NOVEMBER 19, 2020
IMPLEMENTED ON: JUNE 01, 2021
Issued by: State Administration for Market Regulation;
Standardization Administration of the People’s Republic of China.
Table of Contents
Foreword ... 3
Introduction ... 5
1 Scope ... 7
2 Normative References ... 7
3 Terms and Definitions ... 8
4 General Requirements ... 12
4.1 Construction and materials ... 12
4.2 Design and construction for the structure and the steps ... 13
5 Specific Requirements Applicable to Stairs ... 13
6 Specific Requirements Applicable to Step Ladders ... 15
7 Specific Requirements Applicable to Guard-Rails ... 16
7.1 Guard-rails for platforms, walkways and stair landings ... 16
7.2 Guard-rails and handrails for stairs and handrails for step ladders... 18
7.3 Additional fall-protection when steps, stairs or ladders are near guard-rails of working
platforms ... 20
7.4 Gates ... 20
8 Verification of Safety Requirements ... 22
8.1 General ... 22
8.2 Testing of guard-rails ... 22
8.3 Testing of steps of a stair ... 25
8.4 Testing of stepladders ... 27
Annex A (Informative) Significant Technical Changes between this Part and GB/T
17888.3-2008 ... 28
Bibliography ... 30
Foreword
GB/T 17888 Safety of Machinery – Permanent Means of Access to Machinery constitutes the
following four parts:
--- Part 1: Choice of a Fixed Means and General Requirements of Access;
--- Part 2: Working Platforms and Walkways;
--- Part 3: Stairs, Stepladders and Guard-Rails;
--- Part 4: Fixed Ladders.
This Part is Part 3 of GB/T 17888.
This Part was drafted as per the rules specified in GB/T 1.1-2009.
This Part replaced GB/T 17888.3-2008 Safety of Machinery - Permanent Means of Access to
Machinery - Part 3: Stairs Stepladders and Guard-Rails. Compared with GB/T 17888.3-2008,
the major technical changes of this Part can refer to Annex A.
This Part used translation method to equivalently adopt ISO 14122-3:2016 Safety of Machinery
- Permanent Means of Access to Machinery - Part 3: Stairs Stepladders and Guard-Rails.
The Chinese documents that have a consistent correspondence with the international documents
normatively cited in this part are as follows:
--- GB/T 15706-2012 Safety of Machinery - General Principles for Design - Risk
Assessment and Risk Reduction (ISO 12100:2010, IDT)
--- GB/T 17888.1-2020 Safety of Machinery - Permanent Means of Access to Machinery -
Part 1: Choice of Fixed Means and General Requirements of Access (ISO 14122-1:2016,
IDT)
This Part made the following editorial modifications:
--- Correct the editorial error in 4.1: and change the second column item b) to NOTE;
--- Correct editorial error in Table 1: and change "60°≤α≤75°" to "60°< α≤75°";
--- Correct the numbering errors of sub-clauses 8.2.1.1~8.2.1.3 of "8.2.2 Load" and "8.2.2
Test Procedure" and its sub-clauses.
This Part was proposed by and under the jurisdiction of National Technical Committee on
Mechanical Safety of Standardization Administration of China (SAC/TC 208).
Drafting organizations of this Part: Yancheng STG Safety Equipment Co., Ltd.; Zhangjiagang
Huaxiang Centrifuge Manufacturing Co., Ltd.; Anhui Dengshi Machinery Manufacturing Co.,
Safety of Machinery – Permanent Means of Access to
Machinery – Part 3: Stairs, Stepladders and Guard-Rails
1 Scope
This Part of GB/T 17888 gives requirements for non-powered stairs, stepladders and guard-
rails which are a part of a stationary machine, and to the non-powered adjustable parts (e.g.,
foldable, slidable) and movable parts of those fixed means of access.
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., stairs, stepladders, guard-rails)
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 of ISO 14122 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 steps,
stepladders, and guard-rails.
The 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.
2 Normative References
The following documents are essential to the application of this document. For the dated
documents, only the versions with the dates indicated are applicable to this document; for the
undated documents, only the latest version (including all the amendments) is applicable to this
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
......
| Standard ID | GB/T 17888.3-2020 (GB/T17888.3-2020) | | Description (Translated English) | Safety of machinery. Permanent means of access to machinery -- Part 3: Stairs, stepladders and guard-rails | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | J09 | | Classification of International Standard | 13.110 | | Word Count Estimation | 25,215 | | Date of Issue | 2020-11-19 | | Date of Implementation | 2021-06-01 | | Older Standard (superseded by this standard) | GB/T 17888.3-2008 | | Quoted Standard | ISO 12100; ISO 14122-1-2016 | | Adopted Standard | ISO 14122-3-2016, IDT | | Drafting Organization | Yancheng Sizhuangge Safety Equipment Co., Ltd., Zhangjiagang Huaxiang Centrifuge Manufacturing Co., Ltd., Anhui Deng��s Machinery Manufacturing Co., Ltd., Tianjin Jinmao Group Co., Ltd., Zhengzhou Guizhu Industry and Trade Co., Ltd., Foshan Shunde District Wan Yi Household Products Co., Ltd., Ningbo Weicheng Technology Co., Ltd., Shanghai Ruiju Metal Products Co., Ltd., Shenyang Yongpan Metal Products Co., Ltd., Zhejiang Aopeng Industry and Trade Co., Ltd., China National Machinery Productivity Promotion Center, Nanjing Forestry University/Mechanical and Electrical Products Packaging National and Local Joint Engineering Research Center for Biomass Materials, Xiamen Laikesheng Intelligent Technology Co., Ltd., Suzhou Angao Intelligent Security Technology Co., Ltd., Nanjing Light Machinery Packaging Machinery Co., Ltd., Xi'an Xumai Intelligent Appliance Technology Co., Ltd., Fujian Minxuan Technology Co., Ltd., Suzhou Lihong Standardization | | Administrative Organization | National Machinery Safety Standardization Technical Committee (SAC/TC 208) | | Regulation (derived from) | National Standard Announcement No. 26 of 2020 | | Proposing organization | National Machinery Safety Standardization Technical Committee (SAC/TC 208) | | Issuing agency(ies) | State Administration for Market Regulation, National Standardization Administration | | Summary | This standard specifies requirements for unpowered stairs, stairs, and guardrails that are part of fixed machines, as well as the unpowered adjustable (such as foldable and slidable) parts and movable parts of such fixed access facilities. The minimum requirements specified in this standard also apply to similar access facilities (such as stairs, ladders and guardrails) 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 stairs, stairs and guardrails. GB/T 17888 is applicable to fixed 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 people between two levels | | Standard ID | GB 17888.3-2008 (GB17888.3-2008) | | Description (Translated English) | [GB/T 17888.3-2008] Safety of machinery. Permanent means of access to machinery. Part 3: Stairs, stepladders and guard-rails | | Sector / Industry | National Standard | | Classification of Chinese Standard | J09 | | Classification of International Standard | 13.110 | | Word Count Estimation | 16,132 | | Date of Issue | 2008-03-31 | | Date of Implementation | 2008-10-01 | | Older Standard (superseded by this standard) | GB 17888.3-1999 | | Quoted Standard | GB/T 15706.1; GB/T 15706.2; GB 17888.1 | | Adopted Standard | ISO 14122-3-2001, IDT | | Drafting Organization | Mechanical Science Research Institute of Machine Productivity Promotion Center | | Administrative Organization | National Machinery Safety Standardization Technical Committee | | Regulation (derived from) | Announcement of Newly Approved National Standards No. 5, 2008 (No. 118 overall) | | Proposing organization | National security machinery Standardization Technical Committee | | Issuing agency(ies) | Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China; Standardization Administration of China | | Summary | This Chinese standard applies to entering the facility must have a fixed, all machinery (stationary and mobile). This standard applies to a machine part of the stairs, steps and rails. | | Standard ID | GB 17888.3-1999 (GB17888.3-1999) | | Description (Translated English) | Safety of machinery--Permanent means of access to machines and industrial plants-- Part 3: Stairways, stepladders and guard-rail | | Sector / Industry | National Standard | | Classification of Chinese Standard | J09 | | Classification of International Standard | 13.11 | | Word Count Estimation | 9,912 | | Date of Issue | 1999/10/18 | | Date of Implementation | 2000/10/1 | | Quoted Standard | GB/T 15706.1-1995; GB/T 15706.2-1995; GB 17888.1-1999; GB 17888.2-1999; GB 17888.4-1999 | | Adopted Standard | ISO/DIS 14122-3-1996, MOD | | Regulation (derived from) | Announcement of Newly Approved National Standards No. 5, 2008 (No. 118 overall) | | Proposing organization | National Machinery Industry Bureau | | Issuing agency(ies) | State Quality and Technical Supervision | | Summary | This Standard specifies safety requirements applicable to flights of stairs and step ladders and prevention facilities. This standard fence, stairs, ladders, platforms, work platforms, channels and access to machines and industrial equipment locations are set forth requirements. |
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