DIN EN 61334-3-21-1997 配电线路载波系统的配电自动化.第3部分:电力线信号要求.第21节:MV 两线之间的专用的电容耦合装置
Distribution automation using distribution line carrier systems - Part 3: Mains signalling requirements; Section 21: MV phase-to-phase isolated capacitive coupling device (IEC 61334-3-21:1996); German version EN 61334-3-21:1996
The document applies only to MV phase-to-phase isolated capacitive coupling devices for MV (medium voltage) distribution line carrier (DLC) systems. The coupling devices ensures: a) the efficient transmission/reception of carrier-frequency signals between the DLC-transceiver and the power line; b) the safety of personnel and the protection of the low-voltage parts of the installation against the effects of the power-frequency voltage and transient overvoltages.