GB14287.7-2025

Electrical fire monitoring system—Part 7: Current limiting protector for electric fire prevention

电气火灾监控系统第7部分：电气防火限流式保护器

GB 14287.7-2025 est une norme nationale chinoise obligatoire à venir : Electrical fire monitoring system—Part 7: Current limiting protector for electric fire prevention. 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, manufacture, and inspection of current limiting protectors for electric fire prevention used within electrical fire monitoring systems. It is specifically targeted at manufacturers and engineers developing electrical fire safety equipment for the Chinese market. The standard does not apply to other types of fire detectors or monitoring devices covered by different parts of the GB 14287 series.

Exigences techniques

The standard outlines the general requirements and basic functions for current limiting protectors, including specifications for indicator lights, acoustic alarms, and protection alarm functions. Protectors must trigger current-limiting actions and issue audible and visual alarms within specified timeframes during short circuits or overloads. It also mandates features like reset functions, self-check capabilities, and communication interfaces. It specifies critical alarm performance criteria, detailing the response times and current thresholds for both short-circuit and overload protection. The standard also defines non-action performance to ensure the device does not trigger false alarms under normal rated currents, along with requirements for repeatability and tolerance to voltage fluctuations. Furthermore, the standard sets rigorous environmental endurance and electromagnetic compatibility (EMC) requirements. Protectors must withstand climatic conditions (low temperature, constant damp heat), mechanical stresses (shock, bump, vibration), and various electromagnetic interferences without malfunctioning. Safety parameters such as insulation resistance and dielectric strength are strictly regulated. Additionally, if the enclosure is made of non-metallic materials, it must meet specific burning performance criteria as outlined in the normative appendix.

Méthodes d’essai

The standard details a comprehensive testing methodology to verify compliance. Key tests include the basic function check, alarm performance test (evaluating short-circuit and overload responses), and non-action performance test. Environmental and mechanical robustness are assessed through low temperature, constant damp heat, shock, bump, and vibration tests. EMC compliance is verified via RF electromagnetic field, ESD, EFT, and surge immunity tests. Finally, insulation resistance and dielectric strength tests, along with enclosure burning performance tests, ensure overall safety.

Questions fréquentes

What products are regulated under GB 14287.7-2025?

It regulates current limiting protectors for electric fire prevention, which are devices designed to limit current in protected circuits during short circuits or overloads within an electrical fire monitoring system.

Does the standard include requirements for non-metallic enclosures?

Yes, if the protector uses a non-metallic enclosure, it must pass the burning performance test specified in the normative Appendix A, ensuring the burning length does not exceed specified limits.

What are the key environmental tests required by this standard?

The standard requires protectors to undergo climatic environment tests (low temperature and constant damp heat) and mechanical environment tests (shock, bump, and vibration) to ensure reliable operation under harsh conditions.

The summary above provides a high-level overview of GB 14287.7-2025. 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 14287.7-2025 today to access all detailed parameters, tables, and testing procedures.

Indications d’applicabilité

Type: Produit
CCS: C81
ICS: 13.220.20
Autorité compétente: National Fire and Rescue Administration
Comité technique: National Technical Committee on Fire Protection of Standardization Administration of China