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.
DIN EN 61334-3-21-1997由德国标准化学会 DE-DIN 发布于 1997-09,并于 1997-09-01 实施。
DIN EN 61334-3-21-1997 在中国标准分类中归属于: F21 电力系统。
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