Electric power enginering - Modal components in three-phase a.c. systems - Quantities and transformations (IEC 62428:2008); German version EN 62428:2008— 25 стр.
Electricity metering data exchange - The DLMS/COSEM suite - Part 6-1: Object Identification System (OBIS) (IEC 62056-6-1:2017); English version EN 62056-6-1:2017— 52 стр.
Measurement and control; digital measuring instruments; instruments for measuring analogue quantities; definitions, tests and data sheet details— 7 стр.
Electrical measuring instruments - X-t recorders - Part 1: Definitions and requirements; Amendment A1 (IEC 61143-1:1992/A1:1997); German version EN 61143-1:1994/A1:1997— 3 стр.
Direct acting indicating analogue electrical measuring instruments and their accessories; part 4: special requirements for frequency meters (IEC 60051-4:1984, edition 4); german version EN 60051-4:1989— 6 стр.
Direct acting indicating analogue electrical-measuring instruments and their accessories - Part 9: Recommended test methods (IEC 60051-9:1988/A1:1994); German version EN 60051-9:1989/A1:1995— 3 стр.
Direct acting indicating analogue electrical measuring instruments and their accessories - Part 3: Special requirements for wattmeters and varmeters (IEC 60051-3:1984/A1:1994); German version EN 60051-3:1989/A1:1995— 3 стр.