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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，
! z3 p& l; e6 R# l8 c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, a1 ~/ j d1 J P ~
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# c! p" N, D& K% T8 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; R, Y: b; x3 D, P/ @0 J7 V$ J
确定度。
" x$ M( u$ c! k' I/ H9 y# S* N关键词: 电线电缆; 绝缘电阻; 测量不确定度
7 g2 U% j b1 I, `0 z Research on Uncertainty Measurement of Insulation Resistance of Wires and Cables; I7 B4 g8 R6 S$ }$ b( O; s
JI Hong/ b; ^# N# o3 Y1 e3 Z2 u3 K7 @* a
( Jiangsu Province Institute of Quality Inspection and Testing，Nanjing 210007，China)
3 v6 Z0 o* Y2 w" FAbstract: Insulation resistance is one of the basic electrical properties of wire and cables，and it is an important
; V% \. ~2 w" p/ J6 \' y0 |quality feature of the tested object． Many quality defects of the production process can be found by the value of insulation
( X9 `" ^0 [2 q3 Yresistance，which is useful to identify the insulating materials． So it is necessary to evaluate the uncertainty measurement9 P T- J0 G/ ?) B4 z
of insulation resistance of wires and cables． Many factors of the uncertainty measurement of 70 °C insulation) O# N! [" e" Z
resistance are considered，and the uncertainty of insulation resistance is given also．% f4 ?, U8 m8 ^, f; X7 H6 t/ V9 D8 }
Key words: wires and cables; insulation resistance; uncertainty of measurement |
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发表于 2011-9-28 13:27:26
