Secure storage units - Classification and methods of test for resistance to fire - Part 1 : data cabinets and diskette inserts.
安全存储装置。防火试验分类和方法。第1部分：数据室和软盘插件。
2
In operation, a small excitation current is passed across the element, and the voltage, which is proportional to resistance, is then measured and converted to units of temperature calibration.
在操作中，微弱电流通过元件，电压与电阻正比，然后测量并转换为温度校正的组件。
3
The author put forward the reason of not having the insulation resistance test, and made a number of considerations for GIS units measuring insulation resistance.