NF C44-055-31*NF EN 62055-31:2006 Electricity metering - Payment systems - Part 31 : particular requirements - Static payment meters for active energy (classes 1 and 2)
2006NF C44-055-31*NF EN 62055-31:2006 Electricity metering - Payment systems - Part 31 : particular requirements - Static payment meters for active energy (classes 1 and 2)