CAJ | 학술논문

分析屏蔽系数和安全距离计算公式的几个不合理之处：当铜材半径和屏蔽体的网格尺寸符合一定关系时，屏蔽系数的计算结果有可能为负值：闪电击于格栅形大空间屏蔽体以外．当网格宽度大于3．13m时，安全距离随网格宽度增大而减小：网格宽度小于2．69m时．雷电直接击在格栅形大空间屏蔽体上的安全距离小于雷电击在屏蔽体以外时的安全距离。
분석병폐계수화안전거리계산공식적궤개불합리지처：당동재반경화병폐체적망격척촌부합일정관계시，병폐계수적계산결과유가능위부치：섬전격우격책형대공간병폐체이외．당망격관도대우3．13m시，안전거리수망격관도증대이감소：망격관도소우2．69m시．뇌전직접격재격책형대공간병폐체상적안전거리소우뇌전격재병폐체이외시적안전거리。
Some irrational points in the calculation formulas for shielding factor and safe distance are analyzed： when the radius of steel products has a certain relation with the grid size of the shield, the calculated result of the shielding factor may be a negative value; for the lightning to strike on the outside of a grid-shaped large- space shield, when the grid width is larger than 3.13 m, the safe distance will be shortened with the increase of the grid width; when the grid width is smaller than 2.69 m, the safe distance for the lightning to strike directly on the grid- shaped large- space shield is smaller than that on the outside of the shield.