GB18154-2025

Safety specification for explosion suppression of combustible dust

可燃性粉尘抑爆安全规范

GB 18154-2025 é uma norma nacional chinesa obrigatória que entrará em vigor: Safety specification for explosion suppression of combustible dust. Setor: Máquinas. Foco: Segurança de produtos. Entrada em vigor: 1 de nov. de 2026.

A aplicabilidade depende do escopo do produto, da via de certificação, dos avisos da autoridade competente e das regras de transição. Solicite uma tradução ou verifique a fonte antes de usar este registro em uma decisão de conformidade.

Visão geral de conformidade

Esta visão geral está disponível por enquanto apenas em inglês.

Escopo e aplicabilidade

This standard specifies the safety requirements for explosion suppression devices used in process equipment and facilities within dust explosion hazardous areas. It is mandatory for industrial environments handling combustible dust, excluding underground coal mines, fireworks, explosives, and highly toxic or corrosive dusts. It officially replaces the previous GB/T 18154-2000.

Requisitos técnicos

The standard outlines general requirements for identifying and assessing dust explosion propagation risks in production systems. Enterprises must select and design suppression devices based on specific process safety requirements and establish comprehensive maintenance protocols. For technical requirements, it details the selection and design criteria for suppression systems. This includes gathering process characteristics, potential ignition sources, and dust explosion parameters. The selected suppressant must not contaminate materials and must remain chemically stable under process temperatures. The standard mandates that suppression devices must not generate ignition sources before activation and should not create projectile hazards upon activation. Devices must be compatible with other industrial safety systems like fire alarms and emergency shutdown systems, and must include safety mechanisms to prevent accidental activation during maintenance. Installation, usage, and maintenance guidelines require on-site verification of design parameters. The system must integrate with process control systems to trigger alarms and interlocks during an explosion event. Compliance with GB 15577 for hot work and GB 50057 for lightning protection is required during installation.

Métodos de ensaio

The standard references testing methods to verify device performance, including sensor response time and sensitivity tests for both flame and pressure sensors. It also outlines procedures for testing suppressor deployment metrics such as spray lag time, fog formation time, and spray rate. Full-scale suppression performance tests must be conducted in both pipelines and enclosed vessels to ensure effective flame extinguishment. Stability tests over a 100-hour operational period are also mandated, referencing procedures found in Appendix B.

Perguntas frequentes

What products are regulated under GB 18154-2025?

It regulates automatic explosion suppression devices used in process equipment within combustible dust hazardous areas. It does not apply to coal mines, fireworks, or explosive manufacturing facilities.

Are there any updates from the previous version of GB 18154-2025?

Yes, it replaces GB/T 18154-2000. The new version transitions from a recommended to a mandatory standard, adds general requirements, and includes new chapters on installation, maintenance, and verification methods.

Does GB 18154-2025 specify exact technical parameters for sensors?

The standard specifies that flame sensors must respond in under 1ms and defines threshold pressures for pressure sensors. Specific threshold values are determined based on the unique process conditions of the protected facility.

The summary above provides a high-level overview of GB 18154-2025. 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 18154-2025 today to access all detailed parameters, tables, and testing procedures.

Indicações de aplicabilidade

Tipo: Segurança
CCS: C67
ICS: 13.230
Órgão competente: Ministry of Emergency Management
Comitê técnico: National Technical Committee on Work Safety of Standardization Administration of China

Relações

Substitui:GB/T 18154-2000