>>>>IECA级:C1(标准反时限)IECB级:C2(强反时限)tp=TD*(0.14/(M0.02-1tp=TD*(13.5/(M-1tr=TD*(13.5/(1-M2tr=TD*(47.3/(1-M2IECC级:C3(极度反时限)IEC长时反时限:C4tp=TD*(80.0/(M2-1tp=TD*(120.0/(M-1tr=TD*(80.0/(1-M2tr=TD*(120.0/(1-M]IEC短时反时限:C5
tp=TD*(0.05/(M0.04-1tr=TD*(4.85/(1-M2>>>>>>>