GB27900-2011

Firemen's special call unit

消防员呼救器

GB 27900-2011 é uma norma nacional chinesa obrigatória vigente: Firemen's special call unit. Setor: Meio ambiente. Foco: Segurança de produtos. Entrada em vigor: 1 de jun. de 2012.

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 applies to firemen's special call units (also known as personal distress alarms) carried by firefighters during firefighting and rescue operations. It covers the terminology, models, technical requirements, and testing methods for these life-saving devices. It is mandatory for all manufacturers producing firemen's special call units for the Chinese market.

Requisitos técnicos

The standard outlines the general operational conditions for firemen's special call units, requiring them to function reliably across specific temperature, humidity, and atmospheric pressure ranges. It mandates the use of rechargeable batteries equipped with charge/discharge protection circuits. Functionally, the standard specifies requirements for pre-alert, automatic alarm, and manual alarm capabilities. It also details the necessary low-voltage warning features and, for communication-enabled models, the ability to transmit and receive signals to a receiving terminal. Performance criteria include strict limits on permissible static time, pre-alert time, and minimum sound intensity levels for various alarm stages. The standard also sets requirements for continuous operation time, overall device mass, and luminous brightness for visual location indicators. Additionally, the standard mandates rigorous explosion-proof performance in accordance with GB 3836.1, alongside specific insulation resistance and waterproof ratings. Devices must withstand severe climatic and mechanical environmental tests, including high/low temperatures, vibrations, and impacts.

Métodos de ensaio

The standard defines comprehensive testing procedures to verify compliance. Key tests include alarm function verification (automatic, manual, and low-voltage), acoustic intensity measurements for various alerts, and environmental durability assessments such as high/low temperature, alternating damp heat, vibration, shock, and free fall tests. For communication-type units, radio frequency parameters like emission frequency, frequency stability, and receiving sensitivity are measured in shielded environments. Manufacturers must ensure their products pass both type tests and routine factory inspections.

Perguntas frequentes

What products are regulated under GB 27900-2011?

GB 27900-2011 regulates firemen's special call units, which are personal distress alarm devices carried by firefighters during emergency rescue and firefighting operations.

Does the standard cover communication-enabled call units?

Yes, the standard includes specific requirements for communication-type call units, covering their transmission frequency, frequency stability, receiving sensitivity, and effective communication distance.

Is GB 27900-2011 a mandatory standard?

Yes, Chapters 5, 7, and 8.1.1 of GB 27900-2011 are mandatory, while the remaining chapters are recommended. Compliance is essential for market access in China.

The summary above provides a high-level overview of GB 27900-2011. 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 27900-2011 today to access all detailed parameters, tables, and testing procedures.

Indicações de aplicabilidade

Tipo: Produto
CCS: C85
ICS: 13.220.10
Órgão competente: National Fire and Rescue Administration
Comitê técnico: National Technical Committee on Fire Protection of Standardization Administration of China

Relações

Substituída por:GB 27900-2026 (Futura)