GB/T 34377-2017 in English

1. Background and significance of standard formulation

GB/T 34377-2017 "Technical Specification for Application Design, Installation and Acceptance of Household Solar Water Heating Systems" is an important standard formulated by the Chinese government to promote the application of renewable energy in buildings and improve the safety and efficiency of solar water heating systems. With the intensification of energy crisis and environmental problems, the development of clean energy such as solar energy has become an inevitable trend, and this standard provides technical support for this.

2. Comparison of standard frameworks

3. Interpretation of the main contents of the standard

3.1 Definition of terms and symbol specifications

The standard clarifies the relevant terms of domestic solar water heating systems and stipulates a unified symbol system, such as the collector solar altitude angle

(γ₀) and the height of the obstacle in front (H). These definitions provide a clear basis for subsequent technical requirements.

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3.2 Key points of system design

According to the standard, the system design needs to comprehensively consider the building type, climatic conditions and user habits. Table 1 recommends the volume specifications of the hot water storage tank of the domestic solar water heating system, providing a practical reference for designers.

3.3 Installation and Commissioning Requirements

Structural safety and waterproofing treatment are emphasized during the installation process. Especially when installing in existing buildings, it is necessary to conduct a safety review of the building structure and ensure that the anti-corrosion treatment of all connection nodes meets the requirements of GB50212.

4. Implementation Suggestions

• Design Phase:Fully consider the regional climate and user needs, select a reasonable model, and conduct energy efficiency evaluation.
• Construction Phase:Strictly comply with the technical requirements in the standard, and pay special attention to waterproofing and anti-corrosion treatment.
• Acceptance stage: Strictly check each item according to the installation acceptance form in Appendix B to ensure the system is safe and reliable.