GB23826-2025
Light-emitting diode variable speed limit signs of motorway
高速公路LED可变限速标志
GB 23826-2025 is a current mandatory Chinese national standard for Light-emitting diode variable speed limit signs of motorway. It appears in the Construction compliance cluster with a labeling & classification focus and has an implementation date of Nov 1, 2025.
Applicability depends on product scope, certification route, competent authority notices and transition rules. Requst for the translation or verify source before using this record in a compliance decision.
Compliance overview
Scope and applicability
This standard applies to the production and quality inspection of LED variable speed limit signs used on motorways (expressways). It covers fixed outdoor installations displaying speed limits, but does not apply to general variable message signs (VMS) or non-highway applications. Manufacturers of highway traffic control equipment must comply with this standard.
Technical requirements
The standard specifies comprehensive requirements for LED variable speed limit signs, including structural dimensions, material properties, and chromaticity. It defines performance criteria for single LED luminous intensity, half-angle, and deviation angle, ensuring visibility under various conditions. The standard also sets limits for screen brightness and power factor to promote energy efficiency. Compliance with the specified environmental adaptation grades (S1, S2, A, B, C, J) is mandatory based on operating temperature ranges. Additionally, it outlines requirements for electrical safety, electromagnetic compatibility (EMC), and mechanical stability against wind pressure, referencing standards like GB/T 4208 for ingress protection (IP56 or IP66 for tunnels).
Testing methods
Testing methods include subjective and objective evaluations. Visual recognition tests assess static and dynamic distinguishing distances under specified lighting and speed conditions. Environmental tests cover low/high temperature operation, humidity, temperature cycling, vibration, and salt spray corrosion. Electrical safety tests measure insulation resistance, dielectric strength, and grounding. EMC tests evaluate surge, electrostatic discharge, and radiated immunity. Mechanical performance is verified via wind tunnel or sandbag tests.
FAQs
What products are regulated under GB 23826-2025?
GB 23826-2025 regulates LED variable speed limit signs specifically designed for motorways, which are fixed installations displaying speed limits.
Are there any updates from the previous version of GB 23826?
Yes, the 2025 version replaces GB 23826-2009, adding requirements for screen brightness, power factor, dynamic distinguishing distance, and low-temperature storage, among other technical changes.
What is the required ingress protection (IP) rating under this standard?
The standard requires a minimum IP56 rating for general outdoor use, but signs used in tunnel environments must meet the stricter IP66 rating per GB/T 4208-2017.
The summary above provides a high-level overview of GB 23826-2025. To ensure complete compliance for your products entering the Chinese market, a precise and professional translation of the full technical specifications is essential. Purchase our high-quality English translation of GB 23826-2025 today to access all detailed parameters, tables, and testing procedures.
Applicability hints
- Type
- Product
- CCS
- R85
- ICS
- 03.220.20, 93.080.30
- Competent department
- Ministry of Transport
- Technical committee
- National Technical Committee on Traffic Engineering Facilities (Highways) of Standardization Administration of China
Relationships
Replaces:GB 23826-2009