GB12021.9-2021

Minimum allowable values of energy efficiency and energy efficiency grades for electric fans

电风扇能效限定值及能效等级

GB 12021.9-2021 est une norme nationale chinoise obligatoire en vigueur : Minimum allowable values of energy efficiency and energy efficiency grades for electric fans. Secteur : Construction. Thème principal : Efficacité énergétique. Entrée en vigueur : 1 nov. 2022.

L’applicabilité dépend du périmètre du produit, de la voie de certification, des avis des autorités et des règles de transition. Demandez une traduction ou vérifiez la source avant d’utiliser cette fiche pour une décision de conformité.

Aperçu de conformité

Cet aperçu n’est actuellement disponible qu’en anglais.

Champ d’application

This standard applies to electric fans driven by AC or DC motors, including table fans, louver fans, wall fans, table-floor fans, pedestal fans, and ceiling fans. It covers single-phase rated voltages not exceeding 250V and other rated voltages not exceeding 480V. It is mandatory for all manufacturers producing these fan types for the Chinese market. The standard specifically excludes products that cannot be classified under the aforementioned categories.

Exigences techniques

The standard classifies electric fan energy efficiency into 3 grades, where Grade 1 represents the highest efficiency. It establishes the minimum allowable values of energy efficiency (Grade 3) which serve as the mandatory market access threshold. A major requirement introduced in this version is the limitation of standby power. The standard sets specific maximum limits for standby power consumption, differentiating between fans with and without information or status display functions. Products exceeding these standby power limits cannot achieve the corresponding energy efficiency grade. Additionally, the standard defines a specific category known as wind gathering fans. For these specific fan types, a correction coefficient (λ) is applied during the energy efficiency calculation to account for their concentrated airflow characteristics, as detailed in the referenced Appendix A.

Méthodes d’essai

Testing procedures involve measuring the input power and air volume of the fan, which must be conducted in accordance with GB/T 13380-2018 and QB/T 5262-2018. Standby power is measured according to GB/T 35758-2017. For identifying wind gathering fans, the inner and outer circle air volumes are tested and calculated based on specific radius ranges. Manufacturers must ensure their testing facilities are equipped to perform these specific Chinese standard test methods.

Questions fréquentes

What products are regulated under GB 12021.9-2021?

The standard applies to table fans, louver fans, wall fans, table-floor fans, pedestal fans, and ceiling fans driven by AC or DC motors, with specific voltage limits. It is mandatory for all manufacturers targeting the Chinese market.

Are there any significant updates from the previous GB 12021.9-2008 version?

The main updates include the addition of DC motor-driven fans, the introduction of standby power requirements, updated energy efficiency values for each grade, and a new calculation method featuring a correction coefficient for wind gathering fans.

How are the energy efficiency values tested and calculated?

Testing is conducted according to referenced national standards such as GB/T 13380-2018 for AC fans, QB/T 5262-2018 for DC fans, and GB/T 35758-2017 for standby power measurement. Manufacturers must ensure their testing facilities or partners are equipped to perform these specific Chinese standard tests.

The summary above provides a high-level overview of GB 12021.9-2021. To ensure complete compliance for your electric fans entering the Chinese market, a precise and professional translation of the full technical specifications is essential. Purchase our high-quality English translation of GB 12021.9-2021 today to access all detailed parameters, tables, and testing procedures.

Indications d’applicabilité

Type: Management
CCS: F01
ICS: 27.010
Autorité compétente: Standardization Administration of China
Comité technique: Standardization Administration of China

Relations

Remplace:GB 12021.9-2008