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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，
( w( Y1 w# [7 d) x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" | m" W: O' }3 `2 ?- `
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7 {+ J* S5 F6 J
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+ f( K, R" l; _/ h7 x7 H8 v
确定度。
1 e' l/ Z( j# }9 k! v关键词: 电线电缆; 绝缘电阻; 测量不确定度3 e8 v8 E/ `! w" p9 z) T0 q
Research on Uncertainty Measurement of Insulation Resistance of Wires and Cables6 X7 }& p) t/ [: w! H
JI Hong9 o! K9 n; {5 t9 J
( Jiangsu Province Institute of Quality Inspection and Testing，Nanjing 210007，China). a' ]6 j- `0 m! g! S+ w
Abstract: Insulation resistance is one of the basic electrical properties of wire and cables，and it is an important
6 L) E" [/ b9 e9 Y1 }( U" `* g' k2 E# wquality feature of the tested object． Many quality defects of the production process can be found by the value of insulation
, E. k$ L% O) ]! Zresistance，which is useful to identify the insulating materials． So it is necessary to evaluate the uncertainty measurement
. o- e, j6 W. j1 A, V" Z- Rof insulation resistance of wires and cables． Many factors of the uncertainty measurement of 70 °C insulation0 P$ b" |* t4 g6 l
resistance are considered，and the uncertainty of insulation resistance is given also．! j- T; t! J9 n; F: z5 ?
Key words: wires and cables; insulation resistance; uncertainty of measurement |
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发表于 2011-9-28 13:27:26
