GB/T 5170.9-2017 in English

GB/T 5170.9—2017 Standard Overview

GB/T 5170.9—2017 "Environmental test equipment test methods Part 9: Solar radiation test equipment" is an important part of the national standard, mainly used to guide the inspection of solar radiation test equipment. This standard replaces the previous GB/T 5170.9—2008, and has revised and optimized some of the contents to meet the needs of new technological development.

Standard formulation background and technological evolution

With the increasing demand for environmental test equipment worldwide, the inspection methods of solar radiation test equipment are also facing higher requirements. GB/T 5170.9—2017 was formulated to ensure the performance and reliability of the equipment and meet the testing needs of electrical and electronic products in complex environments. Compared with the old version, the new standard has been improved in the following aspects:

• The inspection scope has been expanded from the original "first inspection/acceptance inspection and periodic inspection" to a broader "inspection of the equipment used".
• "Temperature uniformity" has been added as an inspection item, and the technical requirements for irradiance and spectral energy distribution measurement systems have been optimized.
• The structural hierarchy of some inspection methods has been adjusted to improve the accuracy and operability of the inspection results.

Comparison table of standard frameworks

Core inspection items and technical requirements

According to the standard, the inspection items of solar radiation test equipment mainly include:

• Irradiance deviation
• Spectral energy distribution deviation
• Temperature deviation
• Temperature fluctuation
• Temperature uniformity

Inspection instruments and requirements

The following are the main instruments required in the inspection process and their technical requirements:

Implementation suggestions and precautions

During the actual inspection process, the following points need to be noted:

1. Equipment calibration:All instruments used must be calibrated and ensure that they are within the calibration validity period.
2. Environmental condition control:The inspection should be carried out under the specified climate and power supply conditions, and special circumstances need to be recorded and explained.
3. Load selection:Choose the appropriate load according to the equipment specifications to avoid affecting the accuracy of the test results.
4. Data recording and analysis:Record all measured data in detail and calculate the deviation value strictly according to the standard formula.

Summary

GB/T 5170.9—2017 provides comprehensive and scientific guidance for the inspection of solar radiation test equipment. By strictly following the standard requirements for inspection, it can be ensured that the performance of the equipment meets the relevant technical indicators, thereby ensuring the reliability and durability of electrical and electronic products in complex environments.