ljh809809 发表于 2008-9-28 14:31

为什么这里还要打这个高压呢?

节录标准:
cl 14.3.4.2 winding of class I construciton

--the insulation between hazardous live windings and the protective screen shall comply with the requirements for BASIC INSULATION according to 8.8 dimensioned for the hazardous live voltage;

- the insulation between the protective screen and non-hazardous live windings shall comply with
the requirements for dielectirc strength according to table 5, item 2;
为什么在保护屏蔽层与非危险绕阻之间还要打而压呢?

wuybpujr 发表于 2008-9-28 16:00

也就是说在他们之间需要基本绝缘或附加绝缘!

yorkwang 发表于 2008-9-28 16:18

功能绝缘

14828144 发表于 2008-9-28 16:37

应该是功能绝缘!

davidsuzhou 发表于 2008-10-9 15:17

不是功能绝缘..是基本绝缘..

ljh809809 发表于 2008-10-21 15:40

既然hazardous live windings 和 the protective screen 满足了基本绝缘的要求,且protective screen已经接地,为什么protective screen 和non-hazardous live windings 还要table 5, item2的电气强度要求呢?
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