GB/T 5170.5-2016 in English
VALIDInspection methods for environmental testing equipments for electric and electronic products―Part 5:Damp heat testing equipments
- Issued on:2016-12-13
- Implemented on:2017-07-01
- File Format:PDF
- Delivery:Via email within 1~3 business days
$214.00
《GB/T 5170.5-2016电工电子产品环境试验设备检验方法 第5部分:湿热试验设备》由TC8(全国电工电子产品环境条件与环境试验标准化技术委员会)归口,TC8SC2(全国电工电子产品环境条件与环境试验标准化技术委员会气候环境试验分会)执行,主管部门为国家标准化管理委员会。
Introduction
GB/T5170.5-2016 Standard Overview
GB/T5170.5-2016 is part of the series of standards for test methods for environmental test equipment for electrical and electronic products, mainly for the test of damp heat test equipment. This standard replaces the old version GB/T5170.5-2008 and introduces more precise technical requirements and test methods.
Background of Standard Formulation
With the increasing complexity of electronic products and the improvement of environmental adaptability requirements, damp heat test equipment plays an important role in evaluating product quality and reliability. The formulation of GB/T5170.5-2016 standard aims to ensure that the performance of test equipment meets international general standards and meets the needs of product testing in different environments.
Technology Evolution Analysis
Compared with the old version, the new version of the standard has been improved in the following aspects:
- Scope Adjustment: The scope of application has been expanded from "initial inspection and periodic inspection" to "all inspections".
- Reference Document Update: GB12348-2008 and GB/T2423.50 have been added, and some outdated references have been deleted.
- Inspection Item Optimization: A new "Cyclic Damp Heat Characteristics" inspection has been added, and the error requirements for the temperature and humidity measurement systems have been adjusted.
Core Inspection Content and Requirements
The standard clarifies a number of key performance indicators of damp heat test equipment and specifies corresponding inspection methods. The following are some of the most important inspection items and their technical requirements:
| Serial number | Inspection items | Technical requirements |
|---|---|---|
| 1 | Temperature deviation | The maximum allowable error shall not exceed±0.2℃ |
| 2 | Relative humidity deviation | The maximum allowable error shall not exceed±2%RH |
| 3 | Temperature fluctuation | Calculate the fluctuation at each point through the measured data, and take the maximum value as the temperature fluctuation of the equipment. |
| 4 | Relative humidity fluctuation | Calculate the fluctuation of each point through the measured data, and take the maximum value as the relative humidity fluctuation of the equipment. |
| 5 | Alternating damp heat characteristics | According to the procedures specified in GB/T2423.4, evaluate the humidity changes of the equipment during the heating and cooling process. |
Inspection instruments and requirements
The following are the main inspection instruments and their technical requirements involved in the standard:
| Serial number | Instrument name | Technical requirements |
|---|---|---|
| 1 | Temperature measurement system | The maximum allowable error is ±0.2℃, and the response time is less than 40 seconds. |
| 2 | Relative humidity measurement system | The maximum allowable error is ±2%RH, using dry-bulb and wet-bulb thermometers or other sensors. |
Implementation suggestions and precautions
To ensure the accuracy of the test results, the following measures are recommended:
- Calibration instruments: Calibrate the temperature and humidity measurement systems regularly to ensure that their accuracy meets the requirements.
- Environmental control: During the test process, keep the laboratory environment stable (temperature and humidity do not exceed the specified range).
- Load selection: Select the load reasonably according to the equipment capacity to avoid affecting the test results.
- Record keeping: Record the data and results of each test in detail for easy traceability and analysis.
Summary and Outlook
The GB/T5170.5-2016 standard provides comprehensive technical guidance for the inspection of damp heat test equipment. With the diversification of electronic products and the advancement of technology, the standard may be further optimized in the future to meet more complex environmental testing needs.

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