GB14102.2-2024

Fire shutter assembly—Part 2：Motor for fire shutter assembly

防火卷帘第2部分：防火卷帘用卷门机

GB 14102.2-2024 é uma norma nacional chinesa obrigatória vigente: Fire shutter assembly—Part 2：Motor for fire shutter assembly. Setor: Construção. Foco: Segurança de produtos. Entrada em vigor: 1 de mai. de 2025.

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 the design, manufacturing, and inspection of motors for fire shutter assemblies used in industrial and civil buildings. It specifically targets the power units that drive fire shutter curtains to open, position, and close. It is mandatory for manufacturers producing fire shutter motors for the Chinese market. The standard does not cover the general technical conditions of the fire shutter itself, which are addressed in GB 14102.1, nor the controllers, which are covered in GB 14102.3.

Requisitos técnicos

The standard specifies comprehensive technical requirements for fire shutter motors, focusing on reliability and safety during fire emergencies. Key areas include appearance and materials, where components like transmission gears must not be made of plastic or aluminum, and electrical terminals must have heat-resistant insulation sleeves. Regarding basic performance, the standard sets limits for rated output torque and speed, ensuring the motor can handle its rated load. It also defines strict braking performance criteria, specifying maximum sliding displacement under 1.2 to 1.5 times the rated load. Additionally, it mandates manual and electric operation capabilities, requiring smooth operation without stalling or abnormal noise. A critical safety feature is the thermal release mechanism. The motor must automatically release the brake and allow the shutter to descend by gravity when the ambient temperature reaches 70°C. The release mechanism's driving distance and output force must meet specific safety margins. The standard also outlines safety performance requirements, including insulation resistance, leakage current, and electrical strength, referencing GB 4706.1. Furthermore, it requires dual limit protection devices for both upward and downward travel to prevent mechanical failure. Finally, it sets mechanical life and climatic environmental tolerance requirements, ensuring the motor can withstand 3000 open-close cycles and extreme temperatures (-40°C to 55°C) without performance degradation.

Métodos de ensaio

The standard details rigorous testing procedures to verify compliance. Key tests include: Appearance and Material Inspection via visual and tactile methods; Basic Performance Tests using a specialized test rig to measure torque, speed, braking displacement, and limit accuracy; Thermal Release Test by heating the sensing element to confirm automatic brake release within 5 seconds; Safety Performance Tests for insulation resistance, leakage current, and grounding; Mechanical Life Test running 3000 cycles under rated load; and Climatic Environmental Tolerance Tests including high temperature (55°C), low temperature (-25°C), constant damp heat (40°C, 93% RH), and low temperature storage (-40°C).

Perguntas frequentes

What products are regulated under GB 14102.2-2024?

This standard regulates motors for fire shutter assemblies, which are the power units responsible for opening, closing, and positioning fire shutter curtains in industrial and civil buildings.

What is the critical operating temperature for the thermal release mechanism?

The thermal release mechanism must activate at a nominal temperature of 70°C. Upon activation, it must release the brake and allow the shutter to descend by gravity within 5 seconds.

How does GB 14102.2-2024 relate to other fire shutter standards?

It is Part 2 of the GB 14102 series. Part 1 (GB 14102.1) covers general technical conditions for fire shutters, while Part 3 (GB 14102.3) covers fire shutter controllers. This part focuses solely on the motor.

The summary above provides a high-level overview of GB 14102.2-2024. 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 14102.2-2024 today to access all detailed parameters, tables, and testing procedures.

Indicações de aplicabilidade

Tipo: Produto
CCS: C82
ICS: 13.220.50
Órgão competente: National Fire and Rescue Administration
Comitê técnico: National Technical Committee on Fire Protection of Standardization Administration of China