A.Ir=0.01I+I0 B.Ir=(1.0~1.25)I C.Ir=(1.0~1.25)I+I0 D.Ir=(1.25~1.5)I+I0
A.292V B.300V C.306V D.315V
A.≤±0.2% B.≤±0.5% C.≤±1% D.≤±2%