GB7793-2025

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 7793-2025 は施行予定の中国強制国家規格です：Hygienic standard for day lighting and artificial lighting for middle and elementary school。業界：食品。テーマ：製品安全。施行日：2026年11月1日。

適用可否は製品範囲、認証ルート、所管当局の通知、移行規定によって異なります。コンプライアンス判断に使う前に、翻訳をご依頼いただくか公式情報源をご確認ください。

コンプライアンス概要

この概要は現在英語のみで提供しています。

適用範囲

This standard applies to the hygienic requirements of daylighting and artificial lighting in classrooms of ordinary primary and secondary schools and secondary vocational schools. Off-campus training institutions for primary and secondary school students are also encouraged to refer to this standard. It is mandatory for all newly constructed and existing educational facilities to ensure visual health and myopia prevention. The standard specifically targets general classrooms, specialized classrooms (e.g., laboratories, computer rooms), and public teaching rooms.

技術要求

The standard comprehensively regulates both daylighting and artificial lighting environments. For daylighting, it specifies requirements for the daylight factor, daylighting uniformity, and the window-to-floor area ratio across different light climate zones. It also mandates minimum winter solstice full-window sunlight duration for south-facing classrooms and sets limits on the color rendering index and visible light transmittance of window glass. Classrooms must be equipped with curtains to control natural light ingress. For artificial lighting, the standard dictates strict photometric and safety parameters. It requires that all luminaires pass mandatory product certification and prohibits the use of bare light sources. It sets specific limits on correlated color temperature (CCT) and the general color rendering index (Ra), with additional requirements for LED luminaires. Writing boards must be equipped with dedicated local lighting luminaires featuring independent dimming controls for multimedia environments. Crucially, the standard introduces advanced photobiological safety requirements to protect students' visual health. It classifies limits for retinal blue light hazard groups, ensuring general classroom lighting achieves the safest RG0 category. It also sets strict thresholds for the flicker index (PstLM) and stroboscopic effect visibility measure (SVM), along with specific fluctuation depth limits for different frequency ranges. Finally, the standard defines the maintained average illuminance and uniformity for both desk surfaces and writing boards, while restricting the maximum lighting power density to ensure energy efficiency. Unified glare rating (UGR) must not exceed specified limits to prevent visual discomfort.

試験方法

Testing procedures are primarily based on referenced national standards. Daylighting metrics, including the daylight factor, uniformity, and surface reflectance, are measured according to GB/T 5699. Artificial lighting parameters such as illuminance and glare are evaluated using the central point distribution method specified in GB/T 5700. Photometric properties like CCT and color rendering are tested per GB/T 7922 and GB/T 5702, while LED spatial color distribution follows GB/T 36979. Blue light hazard assessment is conducted according to GB/Z 39942, and flicker/stroboscopic metrics are tested via GB/T 42064 and GB/Z 45064.

よくある質問

What products and facilities are regulated under GB 7793-2025?

It applies to ordinary primary/secondary schools and secondary vocational schools. Off-campus training institutions for students can refer to it for compliance.

What are the main updates in GB 7793-2025 compared to the 2010 version?

The 2025 version introduces stricter photobiological safety requirements, including limits for retinal blue light hazard, flicker index, and stroboscopic effect visibility (SVM). It also mandates independent dimming controls for writing board lighting in multimedia classrooms.

Does GB 7793-2025 include specific requirements for LED luminaires?

Yes, it mandates that all luminaires must pass China's mandatory product certification (CCC) and comply with referenced national standards such as GB 43472 and GB 43473 for safety requirements.

The summary above provides a high-level overview of GB 7793-2025. 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 7793-2025 today to access all detailed parameters, tables, and testing procedures.

適用のヒント

種別: 衛生
CCS: C56
ICS: 13.100
所管部門: National Disease Control and Prevention Administration
技術委員会: National Disease Control and Prevention Administration