DC spark testing generates practically no corona and no heat, and is therefore a gentler test process, DC can be used on foamed insulation and thin insulation.
直流火花机几乎不能产生电晕和热量﹐因此它是一种轻微的测试方法﹐直流火花机可用于发泡和薄的绝缘。
2
The heat insulating and reflective film was approved to be a new building material especially suitable for wall and roof insulation by insulation test and actual project application.
Application of insulation tech for well bore breaks off the heat exchange which is economic and efficient, and has gained a satisfied effect in test for dense oil well of Bohai oilfield.