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摘要: 绝缘电阻是电线电缆最基本的电气性能之一，它反映电线电缆产品在正常工作状态下的电气绝缘性能，. J Z# O' `3 d8 D8 m/ \5 j+ f3 B
是反映电线电缆产品绝缘特性的重要指标。通过测定绝缘电阻可以发现生产制造工艺中的缺陷，辨别所选用
9 Y' T& j: G X% c" K/ \1 R' p$ `- O绝缘材料的优劣。为了提高测定绝缘电阻的准确性，有必要对绝缘电阻测试影响因素及其不确定度评定加以8 f4 q7 E- l3 \, G1 n
研究。通过实例分析确定绝缘电阻测试的影响因素并计算电线电缆70℃绝缘电阻的合成不确定度及扩展不* M' u; K5 d/ n$ q) M/ _ X- F
确定度。
. g; |) w% D. C: K关键词: 电线电缆; 绝缘电阻; 测量不确定度" T4 C4 S( k. b' b
Research on Uncertainty Measurement of Insulation Resistance of Wires and Cables4 \* U5 K, w: t, N+ q
JI Hong Q! i6 ?5 P5 ^2 o) s; T
( Jiangsu Province Institute of Quality Inspection and Testing，Nanjing 210007，China)
- @& |4 j' }$ |Abstract: Insulation resistance is one of the basic electrical properties of wire and cables，and it is an important
X1 s2 K/ {9 [- `' G8 y$ tquality feature of the tested object． Many quality defects of the production process can be found by the value of insulation
( n0 |# d9 |' k; i7 rresistance，which is useful to identify the insulating materials． So it is necessary to evaluate the uncertainty measurement* W! U5 v& a8 J/ I
of insulation resistance of wires and cables． Many factors of the uncertainty measurement of 70 °C insulation. ~: E, l2 ], N7 o1 G! h
resistance are considered，and the uncertainty of insulation resistance is given also．0 H3 C$ s/ G# M3 }$ p
Key words: wires and cables; insulation resistance; uncertainty of measurement |
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发表于 2011-9-28 13:27:26
