Low voltage distribution systems up to 1000 V a.c. and 1500 V d.c. Electrical safety. Equipment for testing, measuring or monitoring of protective measures. Part 6. Residual current devices in TT and TN systems
United power system and isolated power systems. Relay protection and network automation of autotransformers (transformers), shunt reactors, controlled shunt reactors, capacitor banks 110 kV and above. Functional requirements
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