ASTM D924电绝缘液体的损耗因数(或功率因数)和相对电容率(介电常数)的标准试验方法
日期:2012-02-08 11:34
Constant)Insulating liquids are used in general either to insulate components of an electrical network from each other and from ground, alone or in combination with solid insulating materials, or to function as the dielectric of a capacitor. For the first use, a low value of relative permittivity is often desirable in order to have the capacitance be as small as possible, consistent with acceptable chemical and heat transfer properties. However, an intermediate value of relative permittivity may
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09/14 21:44