NF C44-052-21/A1*NF EN 62052-21/A1:2017 Electricity metering equipment (AC) - General requirements, tests and test conditions - Part 21 : tariff and load control equipment
2017NF C44-052-21/A1*NF EN 62052-21/A1:2017 Electricity metering equipment (AC) - General requirements, tests and test conditions - Part 21 : tariff and load control equipment