标题: 电线中300/300V,300/500V是什么意思 [打印本页] 作者: 莫惜言 时间: 2011-11-23 08:30 标题: 电线中300/300V,300/500V是什么意思 请教:电线额定电压中像300/300V,300/500V,300/750V的“/“前后两个值各指什么?谢谢作者: keven2012 时间: 2011-11-23 08:55
前者:2C或3C 线的额定电压; " e8 [7 ?" p; t4 L) J+ }$ t: o( Q ^0 ?# T
后者:外面线的额定电压作者: tonze5082 时间: 2011-11-23 09:05
同意楼上的说法作者: ajay 时间: 2011-11-23 09:09
The rated voltage is expressed by the combination of two values Uo/U, expressed in volts:, `* m! s; ?0 H6 N3 ]
5 D/ R6 P* u0 y/ z! G8 sUo being the r.m.s. value between any insulated conductor and "earth" (metal covering of the cable or the surrounding medium);4 h5 } z, e4 a. X! s
) G0 x# @7 h0 }5 N7 ~' ^) O6 jU being the r.m.s. value between any two-phase conductors of a multicore cable or of a system of single-core cables.作者: 往事如烟 时间: 2011-11-23 09:55
引用第1楼xujianyou于2011-11-23 08:55发表的 :. ^2 ^9 C) }8 T0 ?$ T( J5 y
前者:2C或3C 线的额定电压;$ }) M O2 M; P/ R& {8 l E. W