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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，
9 e+ ^/ t' D5 E7 z; b u$ {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
# w0 [6 S( B0 x$ n: Y, X4 M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9 q& q+ Y4 R7 [2 W2 j; X6 c1 B: R
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' o5 H- K' L0 u m4 I
确定度。! k+ i1 J9 L9 |
关键词: 电线电缆; 绝缘电阻; 测量不确定度 C. m8 [2 s- K8 V% b3 c
Research on Uncertainty Measurement of Insulation Resistance of Wires and Cables
& Y2 N4 b$ Y* I+ AJI Hong: x( N( u( G5 a; v* p7 L
( Jiangsu Province Institute of Quality Inspection and Testing，Nanjing 210007，China)
4 l' i# h6 G6 O3 e, l- VAbstract: Insulation resistance is one of the basic electrical properties of wire and cables，and it is an important, t6 S2 {, x& T6 K6 U J
quality feature of the tested object． Many quality defects of the production process can be found by the value of insulation
2 {# z# p0 e& x# Eresistance，which is useful to identify the insulating materials． So it is necessary to evaluate the uncertainty measurement6 u3 `, c A6 ?( Q# N. \# r; }; X
of insulation resistance of wires and cables． Many factors of the uncertainty measurement of 70 °C insulation, K( y! t/ \- v2 W
resistance are considered，and the uncertainty of insulation resistance is given also．" k& {" E' Q2 U6 [7 G X- V; X' R4 P
Key words: wires and cables; insulation resistance; uncertainty of measurement |
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发表于 2011-9-28 13:27:26
