public void SetAverage(double indAveHei = 0, double grdAveHei = 0)
        {
            if (indAveHei <= 0)
            {
                //如果平均高度未设置,那么根据电压等级取值,此处平均高度是计算应力弧垂
                IndAveHei = ElecCalsToolBox.AveHeightDefault(Volt);
            }
            else
            {
                IndAveHei = indAveHei;
            }

            if (grdAveHei <= 0)
            {
                GrdAveHei = IndAveHei;
            }
            else
            {
                GrdAveHei = grdAveHei;
            }
        }