GB 24537-2025Fall protection - Guided type fall arrester including a flexible anchor line (English PDF)

Foreword

This document is in accordance with the provisions of GB/T 1.1-2020 "Guidelines for standardization work Part

1.Structure and drafting rules for standardization documents" Drafting. This document replaces GB/T 24537-2009 "Self-locking devices for flexible guide rails of fall protection belts" and is consistent with GB/T 24537-2009. In addition to structural adjustments and editorial changes, the main technical changes are as follows:

a) The scope has been changed (see Chapter 1, Chapter 1 of the.2009 edition);

b) The definitions of self-locking device, flexible guide rail, connecting rope, connector, and fall distance have been changed (see 3.1, 3.2, 3.4, 3.6, 3.12,.2009 Versions 3.2, 3.1, 3.6, 3.5, and 3.9);

c) The definitions of safety rope, buffer, opening device and descent distance have been deleted (see 3.3, 3.4,

3.8 of the.2009 edition);

d) Added self-locking device with flexible guide rail, buffer device, blocking device, maximum rated load, minimum rated load, guide bracket, lock Terms and definitions of stopping distance (see 3.3, 3.5,

e) Change "General Principles" and "General Requirements" to "Design and Construction" (see 4.1,

4.2 of the.2009 edition);

f) The overall static performance technical requirements and test methods have been modified (see 4.2.1, 5.2.1, and

5.1 of the.2009 edition);

g) Added technical requirements and test methods for static performance of buffer devices (see

4.2.2 and 5.2.2);

h) The technical requirements and test methods for static performance of guide rails have been modified (see 4.2.3, 5.2.3, and

1 Scope

GB 24537-2025 is the Chinese national standard on fall protection - guided type fall arrester including a flexible anchor line, in the field of environment and health protection, safety. It carries no /T suffix, which in the Chinese system means compliance is mandatory: a product or a practice within its scope has to meet it to be lawfully made, sold or carried out in China. It was issued on 29 August 2025 by the Ministry of Emergency Management, and has been in force since 1 September 2026. Classification: ICS 13.340.99, CCS C73. This page is published from the official record of the standard held by the Chinese standards administration: the identification, the dates, the classification and the issuing body are taken from there. The clause text, the tables and the numeric limits are in the document itself, which is delivered complete in English translation.

This document specifies the technical requirements, inspection rules, permanent marking and information to be provided by the manufacturer for self-locking devices with flexible guide rails. Corresponding test methods. This document applies to self-locking devices with flexible guide rails installed within an angle of 15° from the vertical direction.

2 Normative references

The contents of the following documents constitute the essential clauses of this document through normative references in this document. For referenced documents without a date, only the version corresponding to that date applies to this document; for referenced documents without a date, the latest version (including all amendments) applies to This document.

GB 6095 Fall protection safety belt

GB/T 10125 Artificial atmosphere corrosion test Salt spray test

GB/T 12903 Terminology of Personal Protective Equipment

GB 23469 Fall protection connector

3 Terms and Definitions

The terms and definitions defined in GB/T 12903 and the following apply to this document.

3.1 A component attached to the guide rail that can slide along the guide rail as the user moves, and the falling action triggers a braking effect.

3.2 Flexible guide rail flexible anchor line When in use, the self-locking device (3.1) is hung on the flexible connecting part of the upper hanging point, and the self-locking device (3.1) slides on the guide rail. When falling, the self-locking device can be locked in On the guide rail.

Note. Flexible guide rails are usually fiber ropes, wire ropes or webbings.

3.3 A component consisting of a self-locking device (3.1) and a flexible guide rail (3.2) forming part of a fall protection system.

Note. The self-locking device and flexible guide rail are tested, confirmed and used as a whole. See Appendix A for a schematic diagram of the structure.

3.4 connecting line Part used to connect the self-locking device (3.1) and the lacing connection point.

Note. The connecting rope is usually a safety rope, a buffer device, a connector or any combination of the three.

3.5 A component used to absorb impact energy in a self-locking device (3.1) with a flexible guide rail (3.2).