GB/T 32192-2015 in English
VALIDWithstanding voltage tester
- Issued on:2015-12-10
- Implemented on:2016-07-01
- File Format:PDF
- Delivery:Via email within 5 business days
$447.00
《GB/T 32192-2015耐电压测试仪》由TC104（全国电工仪器仪表标准化技术委员会）归口，TC104SC3（全国电工仪器仪表标准化技术委员会交直流仪器、测量电源装置、记录仪表分会）执行，主管部门为中国机械工业联合会。
本标准规定了耐电压测试仪的术语和定义、分类、要求、检验方法、检验规则、标志、包装、运输和贮存。
本标准适用于最高输出电压不高于15kV的数字显示以及模拟(指针)指示的交流(工频)和直流耐电压测试仪(以下简称测试仪)，也适用于符合上述条件的其它试验测试仪器的耐电压部分。
本标准不适用于匝间冲击电压试验仪等输出电压为脉冲电压或瞬态电压的电压测试仪器。
Introduction
Interpretation of the core content of the standard
This standard specifies the terminology, classification system, performance requirements and test methods of withstand voltage testers, and is applicable to AC and DC test equipment with an output voltage of ≤15kV. It focuses on standardizing the metrological characteristics and control functions of insulation strength testing, and provides a technical basis for the safety testing of electrical equipment.
Comparison of key technical indicators
| Project | Grade 1 accuracy | Grade 2 accuracy | Grade 5 accuracy | Grade 10 accuracy |
|---|---|---|---|---|
| Output voltage error | ±1% | ±2% | ±5% | ±10% |
| Breakdown current error | ±1% | ±2% | ±5% | ±10% |
| Ripple factor (DC) | ≤5% (1mA load) | |||
| Distortion (AC) | ≤5% (no load/full load) | |||
Typical application scenario analysis
Case 1: Low-voltage electrical production line detection
When using electronic boost tester to perform 2000V/1min withstand voltage test on household circuit breakers, please note:
- Select Class 2 or above accuracy equipment to ensure ±2% voltage control
- Set the 5mA alarm current threshold to meet IEC60335 requirements
- Regularly check the ripple factor to prevent the influence of DC components
Case 2: Factory test of high-voltage cables
When performing a 15kV/5min withstand voltage test on a 10kV cable:
- A programmed AC tester should be used to meet 1% frequency accuracy
- Configure 200mA short-circuit current capability to cope with sudden breakdown
- Temperature compensation is required (-5℃~45℃ range)
Standard evolution and implementation recommendations
Technical development background
This standard was issued in 2015 and replaced the original industry specification. The main improvements include:
- Added performance requirements for electronic boosting equipment
- Refine the electromagnetic compatibility test level (GB/T 18268.1)
- Specify the special requirements for AC/DC hybrid testers
Implementation points
Enterprises should focus on:
- Establish a regular calibration system (six-month cycle is recommended)
- Strengthen high-voltage safety training for operators
- Improve the test record traceability system
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