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GB7793-2010
Hygienic standard for day lighting and Artificial lighting for middle and elementary school
中小学校教室采光和照明卫生标准
GB 7793-2010 es una norma nacional china obligatoria vigente: Hygienic standard for day lighting and Artificial lighting for middle and elementary school. Sector: Alimentos. Enfoque: Seguridad de productos. Entrada en vigor: 1 may 2011.
La aplicabilidad depende del alcance del producto, la vía de certificación, los avisos de la autoridad competente y las reglas de transición. Solicite una traducción o verifique la fuente antes de usar esta ficha en una decisión de cumplimiento.
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Alcance y aplicabilidad
This standard establishes the hygienic requirements for daylighting and artificial lighting in school classrooms. It is specifically applicable to newly built, reconstructed, and expanded ordinary primary and secondary schools, as well as normal and kindergarten teacher training schools in urban and county-town areas. It does not apply to specialized or higher education institutions. The standard references architectural lighting terminology defined in JGJ/T 119.
Requisitos técnicos
The standard outlines specific parameters for natural daylighting, including the daylight factor and the ratio of glazing to floor area. It mandates that classrooms generally adopt a north-south orientation with bilateral daylighting, and requires the installation of curtains to prevent direct glare. Interior surface reflectance values for ceilings, walls, and blackboards must strictly adhere to the prescribed ratios to optimize visual environments. For artificial lighting, the standard specifies maintained average illuminance levels for both student desks and blackboards, along with minimum uniformity ratios. It sets requirements for light sources, recommending specific color temperature ranges and a minimum color rendering index (CRI). Classrooms must utilize fine-bore rare-earth tri-phosphor fluorescent lamps with designated ballasts to meet energy and visual health standards. Furthermore, the standard regulates visual comfort and energy efficiency by setting limits on the unified glare rating (UGR) and lighting power density (LPD). It also defines the maintenance factor to be used in illuminance calculations. Specific UGR and LPD limits are legally mandatory to ensure student eye health and energy conservation.
Métodos de ensayo
Compliance verification involves measuring the daylighting performance according to GB/T 5699 and the artificial lighting parameters according to GB/T 5700. Key evaluations include testing the daylight factor, illuminance uniformity, and glare indices. Engineers must ensure that measurements are taken under the specified maintenance conditions to verify adherence to the maintained average illuminance.
Preguntas frecuentes
What types of educational facilities are regulated under GB 7793-2010?
The standard applies to newly built, reconstructed, and expanded ordinary primary and secondary schools, normal schools, and kindergarten teacher training schools in urban and county-town areas. It does not cover specialized training facilities or higher education institutions.
Are there any significant updates from the previous GB 7793-1987 version?
The 2010 version introduced mandatory requirements for blackboard lighting, light source specifications (color temperature and CRI), unified glare rating (UGR), lighting power density, and maintenance factors. It also removed the outdated illuminance compensation factor. Notably, a 2018 amendment corrected the UGR requirement to specify that it should not exceed 19.
How does GB 7793-2010 address testing and measurement methods?
The standard references national measurement standards such as GB/T 5699 for daylighting and GB/T 5700 for artificial lighting. Compliance verification must be conducted using these specified Chinese testing protocols.
The summary above provides a high-level overview of GB 7793-2010. To ensure complete compliance for your educational facility projects or lighting 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 7793-2010 today to access all detailed parameter tables, reflectance values, and testing procedures.
Indicaciones de aplicabilidad
- Tipo
- Salud e higiene
- CCS
- C56
- ICS
- 13.100
- Organismo competente
- National Disease Control and Prevention Administration
- Comité técnico
- National Disease Control and Prevention Administration