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GB21519-2008
Minimum allowable values of the energy efficiency and energy efficiency grades for electrical storage water heaters
储水式电热水器能效限定值及能效等级
GB 21519-2008 は現行の中国強制国家規格です：Minimum allowable values of the energy efficiency and energy efficiency grades for electrical storage water heaters。 業界：電子。テーマ：電気安全。 施行日：2008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 specifies the minimum allowable values of energy efficiency, energy-saving evaluating values, and energy efficiency grades for household and similar electrical storage water heaters. It is exclusively applicable to storage-type electric water heaters and does not cover instant or other types of water heating systems. Compliance with this standard is mandatory for manufacturers targeting the Chinese market.
技術要求
The standard establishes a 5-tier energy efficiency grading system, where Grade 1 represents the highest efficiency. It defines the minimum allowable values based on the 24h inherent energy consumption coefficient and the hot water output rate. Products must meet at least Grade 5 requirements to be legally sold, with a stepped upgrade to Grade 4 required two years after implementation. Additionally, the standard sets an energy-saving evaluating value corresponding to Grade 2, serving as a benchmark for high-efficiency products. The 24h inherent energy consumption is calculated against a baseline formula determined by the rated capacity of the heater. Manufacturers must ensure their products meet these dual metrics of energy loss and hot water delivery to achieve the desired efficiency grade.
試験方法
The standard outlines specific testing procedures, including the capacity test, which measures the actual volume by weighing the water-filled heater. The 24h inherent energy consumption test requires precise thermocouple placement on the container and a 48-hour measurement cycle under controlled ambient temperatures. Furthermore, the hot water output rate test evaluates the heater's ability to deliver hot water by measuring the discharged water mass and temperature differentials until the output temperature drops by 20°C from its peak. Strict environmental conditions, including specific ambient temperatures and humidity levels, must be maintained during all tests.
よくある質問
What products are regulated under GB 21519-2008?
GB 21519-2008 regulates household and similar electrical storage water heaters. It does not apply to instant water heaters.
What is the minimum energy efficiency requirement for entering the Chinese market?
Products must meet at least Grade 5 requirements as the minimum allowable value, which upgrades to Grade 4 two years after the standard's implementation date.
How is the energy efficiency grade determined?
The grade is determined by two key metrics: the 24h inherent energy consumption coefficient and the hot water output rate, tested according to the specific procedures outlined in the standard.
The summary above provides a high-level overview of GB 21519-2008. 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 21519-2008 today to access all detailed parameters, calculation formulas, and testing procedures.
適用のヒント
- 種別
- 管理
- CCS
- F01
- ICS
- 27.010
- 所管部門
- Standardization Administration of China
- 技術委員会
- National Technical Committee on Energy Fundamentals and Management of Standardization Administration of China