Electricity metering - Data exchange for meter reading, tariff and load control - Part 61: Object identification system (OBIS) (IEC 62056-61:2006); German version EN 62056-61:2007, text in English— 40 стр.
Electricity metering equipment (a.c.). Particular requirements. Static meters for reactive energy at fundamental frequency (classes 0,5 S, 1 S and 1)— 32 стр.
Electrical safety in low voltage distribution systems up to 1000 V a.c. and 1500 V d.c. Equipment for testing, measuring or monitoring of protective measures. Performance measuring and monitoring devices (PMD)— 82 стр.