this is particularly true with high-frequency spark testers that should not be used with foamed insulation 因此高频火花机不被应用于发泡绝缘是非常正确的。
dc spark testers are often used in cabling operations, sometimes testing 25 twisted pairs within a single electrode 直流火花机常被用于成缆?有时在单个电极中测试25对的电缆。
key components in the insulation line : high precision extrusion crosshead with automatic centring produced by swiss unitek, o . d . meter, centrifugal tester, h . f . spark tester, capacitance tester provided by uk beta co ., frequency converter, temperature controller, plc and bearing from simens in germany and mitsubishi injapan 生产线选用的主要关键器件:挤出机头采用瑞士unitek公司的高精度自动定心机头;外径测试、偏心测定、高频火花、电容测试等均采用英国beta公司的高精度仪器;而且挤出机的变频器、温控器、plc和轴承等均采用德国西门子公司和日本三菱公司的产品。