ASTM D3300在脉冲条件下石油成因的绝缘油的电介质击穿电压的标准试验方法
日期:2012-02-10 11:51
ticularly polyaromatic, hydrocarbon molecules.
This test method may be used to evaluate the continuity of composition of an oil from shipment to shipment. The NPS impulse breakdown voltage of an oil can also be substantially lowered by contact with materials of construction, by service aging, and by other impurities. Test results lower than those expected for a given fresh oil may also indicate use or contamination of that oil.
Although polarity of the voltage wave has little or no effect on the
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08/29 20:50