GB4793-2024

Safety technical specification for electrical equipment for measurement,control and laboratory use

测量、控制和实验室用电气设备安全技术规范

GB 4793-2024 est une norme nationale chinoise obligatoire à venir : Safety technical specification for electrical equipment for measurement,control and laboratory use. Secteur : Électronique. Thème principal : Sécurité des produits. Entrée en vigueur : 1 nov. 2026.

L’applicabilité dépend du périmètre du produit, de la voie de certification, des avis des autorités et des règles de transition. Demandez une traduction ou vérifiez la source avant d’utiliser cette fiche pour une décision de conformité.

Aperçu de conformité

Cet aperçu n’est actuellement disponible qu’en anglais.

Champ d’application

This standard applies to the design, production, inspection, and use of electrical equipment for measurement, control, and laboratory use, including industrial automation equipment. It serves as the fundamental safety benchmark for these categories. It is intended to be used in conjunction with the GB/T 42125 series, which contains the corresponding testing methods.

Exigences techniques

The standard specifies comprehensive safety requirements across multiple domains. It mandates marking and documentation protocols to ensure safe installation, operation, and maintenance. Manufacturers must provide clear warnings and technical files accompanying the equipment. Regarding protection against electric shock, the standard defines acceptable protective schemes, including protective grounding, double insulation, and protective impedance. It sets strict limits for accessible parts under both normal and single-fault conditions, and introduces specific requirements for solid insulation alongside clearances and creepage distances. For mechanical and thermal safety, the standard requires risk assessments for moving parts and sets limits for surface temperatures to prevent burns. Equipment must be designed to prevent fire spread by controlling ignition sources and using materials with appropriate flammability ratings (e.g., V-1 or better). Additional requirements cover protection against fluid ingress, radiation (including laser sources), and toxic gas release. It also mandates specific safety mechanisms for components and interlocks, ensuring that protective devices function reliably throughout the equipment's expected lifetime.

Méthodes d’essai

The standard outlines testing methodologies primarily by referencing the GB/T 42125.1-2024 standard. Testing procedures are consolidated in Chapter 16, covering evaluations for marking, electric shock, mechanical dangers, flame spread, temperature limits, and radiation. Key tests include dielectric strength tests for solid insulation, mechanical impact resistance evaluations, and stability verifications.

Questions fréquentes

What products are regulated under GB 4793-2024?

The standard applies to electrical equipment for measurement, control, and laboratory use, including industrial automation equipment. It covers the design, production, inspection, and usage phases of these products.

Are there any updates from the previous version of GB 4793?

The 2024 version restructures the standard by consolidating testing methods into a new Chapter 16, adds specific requirements for solid insulation protection against electric shock, and introduces new technical requirements for mechanical risk assessment and movement gaps.

How does GB 4793-2024 relate to the GB/T 42125 series?

GB 4793-2024 is designed to be used alongside the GB/T 42125 series. While GB 4793-2024 outlines the mandatory safety technical specifications, the GB/T 42125 series contains the corresponding detailed testing methods for those technical requirements.

The summary above provides a high-level overview of GB 4793-2024. 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 4793-2024 today to access all detailed parameters, tables, and testing procedures.

Indications d’applicabilité

Type: Sécurité
CCS: N20;N61
ICS: 19.080, 71.040.10
Autorité compétente: Ministry of Industry and Information Technology
Comité technique: National Technical Committee on Safety of Measurement, Control and Laboratory Electrical Equipment of Standardization Administration of China

Relations

Remplace partiellement:GB 4793.1-2007 (En vigueur)