Technical reference · English
Insulation monitoring and leakage current monitoring of medical equipment
Online measurement method for earth leakage current
Choice of online monitoring of type A leakage current/type B leakage current
The power distribution system contains AC, pulsed DC, and smooth DC current components. We select the device according to the objects we need to detect.
Dialysis-room circuit-monitoring example: Type A monitoring, 15 Hz–2,000 Hz frequency range and 1–10 mA leakage-current range. This configuration must suit the equipment’s current waveform, instructions for use and circuit design; it is not a general requirement for all dialysis equipment or medical locations.
The loop may include power frequency AC, variable frequency output and different current waveforms after rectification. The monitoring type should be selected based on the actual equipment and power supply structure, and cannot be judged just by the name of the equipment.
The anti-shock protection category and application part type of the equipment should be based on the specific product nameplate and manufacturer's information, and should not be uniformly classified according to the name of the equipment.
