ASTM D149固体电绝缘材料在工业电源频率下的介电击穿电压和介电强度的试验方法。
Standard Test Method for dielectric breakdown voltage and dielectric strength of D149 ASTM solid electrical insulating materials at industrial power frequencies.
本文简述电子电气产品对绝缘系统的要求，以及在产品的安全测试中抗电强度试验和对测试仪器作运行检查的重要性。
This paper briefly introduces the requirements about the insulation system of electronic product, and describes the importance of functional check and Dielectric strength in safety test.
ASTM D149固体电绝缘材料在工业电源频率下的介电击穿电压和介电强度的试验方法。
Test method for ASTM D149 solid electrical insulating materials at commercial power frequencies the dielectric breakdown voltage and dielectric strength.
试验证明，该样品在较低的电场强度下有较大的电子流注入二氧化硅绝缘层。
Experiments show that, with this structure, more electrons are injected into the SiO2 under a low electric field.
通过测定高强度绝缘子的热膨胀和X射线衍射强度进行试验。
Tests were carried out by measuring the thermal expansion and the X-ray diffraction intensities of high-tension insulators.
通过测定高强度绝缘子的热膨胀和X射线衍射强度进行试验。
Tests were carried out by measuring the thermal expansion and the X-ray diffraction intensities of high-tension insulators.
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