GB 23826-2025Light-emitting diode variable speed limit signs of motorway (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 23826-2009 "LED variable speed limit signs for highways". Compared with GB 23826-2009, except for the structural adjustment, In addition to the integration and editorial changes, the main technical changes are as follows:

a) Added the terms and definitions of "highway LED variable speed limit sign", "static visual distance" and "dynamic visual distance" (see 3.1~3.3);

b) The contents of composition, classification and model have been changed (see Chapter 4, Chapter 4 of the.2009 edition);

c) The requirements for ambient temperature adaptability level have been changed (see 5.1.3,

5.1.3 of the.2009 edition);

d) The technical requirements for normal luminous intensity and half-intensity angle of a single LED have been changed (see 5.2.2,

5.2.3 of the.2009 edition);

e) Added technical requirements and test methods for single LED deviation angle (see

5.2.2 and 6.2.2);

f) Changed the appearance quality requirements of the controller (see 5.4.3,

5.4.4 of the.2009 edition);

g) The technical requirements for chassis color have been changed (see 5.5.1,

5.5.1 of the.2009 edition);

1 Scope

GB 23826-2025 is the Chinese national standard on light-emitting diode variable speed limit signs of motorway, in the field of services and company organization. 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 25 April 2025 by the State Administration for Market Regulation; Standardization Administration of China, and has been in force since 1 November 2025. Classification: ICS 03.220.20, CCS R85. 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 composition, classification and model, technical requirements, inspection regulations, and other requirements of variable speed limit signs for highway light emitting diodes (LEDs). The test methods are described, as well as labeling, packaging, transportation and storage. This document applies to the production and product quality inspection of LED variable speed limit signs for highways.

2 Normative references

The contents of the following documents constitute 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/T 191 Pictorial markings for packaging, storage and transportation

GB/T 2423.1 Environmental testing for electric and electronic products Part

3 Terms and definitions

The terms and definitions defined in GB/T 23828 and the following apply to this document.