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[问题求助] SPT-3中地线的颜色

P:2007-12-06 20:24:14

1

各位:SPT-3中地线的颜色是否有规定。比如是否只能是黄/绿,还是绿色也可以。谢谢!

conduit coupling - 电缆管道连接 (0) 投诉

P:2007-12-06 20:41:49

2

我也想了解,地线有的是绿注黄,有的是黄注绿.到底是哪中颜色才是标准的?

quasi-conductor - 半导体 (0) 投诉

P:2007-12-07 10:32:24

3

UL62中有对地线的颜色进行规定如下:

4.1.9.1 (b) Grounding conductors shall be distinguished by the color green or a combination of the colors green and yellow. On a grounding conductor colored green, one or more yellow stripes that cover no less than 5% and more than 70% of the calculated circumference of the finished conductor insulation shall be permitted.

因此,地线颜色用绿色和黄色和绿色的混和色都是可以的,只不过黄色注条的比例不能少于5%或多于70%.

tight buffer constant - 紧包缓冲结构(光缆的) (0) 投诉

P:2007-12-07 11:54:22

4

上面是正确的……

NHCF - non-hermetically coated fiber非密封涂层光纤 (0) 投诉

P:2007-12-07 20:53:03

5

多谢3楼的大侠!明白了。

de-reeling device - 放线装置 (0) 投诉

P:2008-04-04 01:57:17

6

谢谢三楼的朋友

group delay - 群时延 (0) 投诉

P:2008-04-04 16:05:14

7

学习了

optical fiber connector without focusing junction - 无聚焦结的光纤连接器 (0) 投诉

P:2008-04-17 19:43:18

8

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ravelling - 放线;退绕;拆卷,松开 (0) 投诉

P:2008-04-20 08:58:47

9

学习了!!!

FQC - Final Quality Control 最终质量管理 (0) 投诉

9


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