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[中高压力缆] GB/T12706-2002中绝缘电阻体积电阻率是如何计算的？
P:2008-01-06 16:52:14
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k=R/Lg(D/d)
K is th insulation resistance constant at 20℃ in megohm kilometres
R is the insulation resistance of each core at 20℃ in megohm kilometres
D is the diameter over the insulation in millimetres(mm)
d is the diameter over the conductor in millimetres(mm)
optoelectronic traverse scanner - 光电子横向扫描器 （0） 投诉
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