首页 > 电力电缆
[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
2
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)
static coiling machine with or without drawing draft - 带有或没有拉线模的静盘成圈机 （0） 投诉
4
你需要登录才能发表，点击登录。