GB/T 47248-2026 Road vehicles—Safety chains for trailers up to 3.5 t English, Anglais, Englisch, Inglés, えいご
This is a draft translation for reference among interesting stakeholders. The finalized translation (passing through draft translation, self-check, revision and verification) will be delivered upon being ordered.
ICS
CCS
National Standard of the People's Republic of China
GB/T 47248-2026
Road vehicles - Safety chains for trailers up to 3.5 t
道路车辆 3.5 t以下挂车用安全链
Issue date: 2026-03-31 Implementation date: 2026-10-01
Issued by the General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China
the Standardization Administration of the People's Republic of China
Contents
Foreword
1 Scope
2 Normative References
3 Terms and Definitions
4 Classification
5 Technical Requirements
6 Test Methods
7 Inspection
8 Marking
Annex A (Normative) Safety Chain Attachment Points
Bibliography
Road vehicles — Safety chains for trailers with a gross mass up to 3,5 t
1 Scope
This document specifies the classification, technical requirements, test methods, inspection and marking of safety chains for trailers.
This document applies to the design, production and installation of steel safety chains for trailers with a gross mass up to 3,5 t.
2 Normative References
The following documents are essential for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition (including any amendments) applies.
GB/T 13912 Metallic coatings — Hot dip galvanized coatings on fabricated iron and steel articles — Specifications and test methods
GB/T 20946-2007 Short link chain for lifting purposes — General conditions of acceptance
3 Terms and Definitions
For the purposes of this document, the terms and definitions given in GB/T 20946-2007 and the following apply.
3.1 safety chain
A safety device used to ensure that a trailer does not separate in the event of an accidental uncoupling.
[Source: GB/T 22550-2023, 3.6.16, modified]
3.2 trailer gross mass
The sum of the trailer kerb mass and the rated payload.
3.3 safety chain attachment point
A structure provided on the trailer drawbar, the towing vehicle’s towing bracket or other components that meet the strength requirements, used to attach the safety chain, by means such as welding or bolting.
3.4 proof force
The force applied to the complete chain during the manufacturing verification test of the safety chain.
3.5 breaking force
The maximum tensile force reached when the chain breaks during a static tensile test.
[Source: GB/T 20946-2007, 3.7, modified]
4 Classification
Safety chains are classified into four categories. The category codes and the applicable trailer gross masses shall comply with the provisions of Table 1.
Standard
GB/T 47248-2026 Road vehicles—Safety chains for trailers up to 3.5 t (English Version)
Standard No.
GB/T 47248-2026
Status
to be valid
Language
English
File Format
PDF
Word Count
9000 words
Price(USD)
270.0
Implemented on
2026-10-1
Delivery
via email in 1~3 business day
Detail of GB/T 47248-2026
Standard No.
GB/T 47248-2026
English Name
Road vehicles—Safety chains for trailers up to 3.5 t
GB/T 47248-2026 Road vehicles—Safety chains for trailers up to 3.5 t English, Anglais, Englisch, Inglés, えいご
This is a draft translation for reference among interesting stakeholders. The finalized translation (passing through draft translation, self-check, revision and verification) will be delivered upon being ordered.
ICS
CCS
National Standard of the People's Republic of China
GB/T 47248-2026
Road vehicles - Safety chains for trailers up to 3.5 t
道路车辆 3.5 t以下挂车用安全链
Issue date: 2026-03-31 Implementation date: 2026-10-01
Issued by the General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China
the Standardization Administration of the People's Republic of China
Contents
Foreword
1 Scope
2 Normative References
3 Terms and Definitions
4 Classification
5 Technical Requirements
6 Test Methods
7 Inspection
8 Marking
Annex A (Normative) Safety Chain Attachment Points
Bibliography
Road vehicles — Safety chains for trailers with a gross mass up to 3,5 t
1 Scope
This document specifies the classification, technical requirements, test methods, inspection and marking of safety chains for trailers.
This document applies to the design, production and installation of steel safety chains for trailers with a gross mass up to 3,5 t.
2 Normative References
The following documents are essential for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition (including any amendments) applies.
GB/T 13912 Metallic coatings — Hot dip galvanized coatings on fabricated iron and steel articles — Specifications and test methods
GB/T 20946-2007 Short link chain for lifting purposes — General conditions of acceptance
3 Terms and Definitions
For the purposes of this document, the terms and definitions given in GB/T 20946-2007 and the following apply.
3.1 safety chain
A safety device used to ensure that a trailer does not separate in the event of an accidental uncoupling.
[Source: GB/T 22550-2023, 3.6.16, modified]
3.2 trailer gross mass
The sum of the trailer kerb mass and the rated payload.
3.3 safety chain attachment point
A structure provided on the trailer drawbar, the towing vehicle’s towing bracket or other components that meet the strength requirements, used to attach the safety chain, by means such as welding or bolting.
3.4 proof force
The force applied to the complete chain during the manufacturing verification test of the safety chain.
3.5 breaking force
The maximum tensile force reached when the chain breaks during a static tensile test.
[Source: GB/T 20946-2007, 3.7, modified]
4 Classification
Safety chains are classified into four categories. The category codes and the applicable trailer gross masses shall comply with the provisions of Table 1.
