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首先要弄清楚一点:
6 w' z5 U4 s1 M! z( D" @) K# f- \LZ测的是高温绝缘电阻,这个应该是没有问题的。. n/ q# }7 w# H* H: S5 v
高温绝缘电阻怎样测呢?
5 l9 ^. @7 h7 s/ s1 YC 3005-1993有如下规定:# u3 v4 o6 P' f
9.2 Insulation resistance at high temperature: Sample a suitable length of a core specimen from the product, immerse it in water at a spesified temperature +-1 C, until the temperature of the insulation is stabilized, and then measure the insulation resistance by the method of 9.1. Do not carry out temperature conversion.5 P0 _% J- u# ^ t4 a& i
这段话中,抽取的是CORE SPECIMEN,参考国标70C绝缘电阻测试方法,这指的应该是芯线。
& f1 A& E7 P7 v9 W# h5 Q最好是翻阅日文版C 3005上面规定的很清楚。不过我不懂日文---$ h9 x' s) u. f# X7 I' c9 Y; g" b
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