Resumo em português · Tradução disponível
GB12791-2006
Point type ultraviolet flame detectors
点型紫外火焰探测器
GB 12791-2006 é uma norma nacional chinesa obrigatória vigente: Point type ultraviolet flame detectors. Setor: Construção. Foco: Segurança de produtos. Entrada em vigor: 1 de abr. de 2007.
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 point type ultraviolet flame detectors with a wavelength range below 300nm installed in general industrial and civil buildings. For detectors with special performance installed in other environments, this standard should also be executed unless otherwise specified by relevant standards. It is mandatory for manufacturers of UV flame detectors entering the Chinese market.
Requisitos técnicos
The standard specifies general requirements for point type ultraviolet flame detectors, including the mandatory presence of a red alarm confirmation light and secure factory settings. Manufacturers must ensure that detectors meet strict operational and environmental stability criteria. It also outlines requirements for auxiliary equipment connections, response performance field settings, and control software design to ensure reliability and prevent program lockups. Furthermore, the standard mandates that detectors must withstand various environmental and electromagnetic conditions without issuing false alarms or unrecoverable fault signals. Key parameters include insulation resistance, dielectric withstand voltage, and protection against environmental light interference. Software-controlled detectors must store preset data in non-volatile memory. The standard also requires that detectors have clear product markings, including the executed standard, manufacturer name, model, and main technical parameters like the flame radiation spectrum range and sensitivity level. Compliance with these marking and documentation requirements is mandatory for market access.
Métodos de ensaio
The standard outlines a comprehensive testing program using a specialized UV flame test device to measure response thresholds. Key tests include consistency, repeatability, and orientation tests to evaluate detection uniformity. Environmental tests such as high/low temperature, constant damp heat, and corrosion assess durability. Electromagnetic compatibility (EMC) tests including electrostatic discharge, radiated immunity, and surge immunity are also mandated. Finally, a fire sensitivity test using n-heptane and ethanol flames determines the detector's sensitivity classification.
Perguntas frequentes
What products are regulated under GB 12791-2006?
GB 12791-2006 regulates point type ultraviolet flame detectors with a wavelength range below 300nm used in general industrial and civil buildings.
Are there any updates from the previous version of GB 12791-2006?
Yes, this version replaces GB 12791-1991 and incorporates technical requirements from the European standard EN 54-10. It adds several EMC and environmental endurance tests, and modifies impact and fire sensitivity test methods.
What are the mandatory chapters in GB 12791-2006?
Chapters 3, 4, 5, and 6 are mandatory, covering general requirements, requirements and test methods, inspection rules, and marking.
The summary above provides a high-level overview of GB 12791-2006. 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 12791-2006 today to access all detailed parameters, tables, and testing procedures.
Indicações de aplicabilidade
- Tipo
- Produto
- CCS
- C81
- ICS
- 13.220.20
- Órgão competente
- National Fire and Rescue Administration
- Comitê técnico
- National Technical Committee on Fire Protection of Standardization Administration of China