JJF 1245.2-2010 安装式电能表型式评价大纲 特殊要求 机电式有功电能表(0.5,1和2

ProgramofPatternEvaluationofElectricityMeters-ParticularRequirements-ElectromechanicalMetersforActiveEnergy(classes0.5,7and2)ProgramofPatternEvaluationofElectricityMeters-ParticularRequirements-ElectromechanicalMetersforActiveEnergy(classes0.5,1and2)0.051,,1--0.11,,t.uir.;,Fntcosg:1cosg-9.51-