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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，
+ l2 M- @0 K; }/ ]3 z* t; n G7 t4 S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
& P, P+ i2 q# _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
& J2 J6 \) A$ T# C" w, }& d% ^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' K }$ i* F! |/ f- A6 ~
确定度。
# {/ C [5 ?% | F- i关键词: 电线电缆; 绝缘电阻; 测量不确定度) t" g3 I7 Z" ^# k' [
Research on Uncertainty Measurement of Insulation Resistance of Wires and Cables* J( n. u' t9 u- p7 S) }4 d. S4 g# W
JI Hong* r0 v. @9 H* G# U# n' C; z, i- j( Z
( Jiangsu Province Institute of Quality Inspection and Testing，Nanjing 210007，China)& {* z3 ]) l. a- I: @9 p
Abstract: Insulation resistance is one of the basic electrical properties of wire and cables，and it is an important
2 L& N5 h9 u/ n# Z- M; |quality feature of the tested object． Many quality defects of the production process can be found by the value of insulation: L5 Z: _: x% B; P# V2 x
resistance，which is useful to identify the insulating materials． So it is necessary to evaluate the uncertainty measurement
6 X5 [/ t: V h9 a3 xof insulation resistance of wires and cables． Many factors of the uncertainty measurement of 70 °C insulation0 \$ T9 }) M$ Q5 b
resistance are considered，and the uncertainty of insulation resistance is given also．" }7 ?3 [9 G2 c5 G2 g" p
Key words: wires and cables; insulation resistance; uncertainty of measurement |
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发表于 2011-9-28 13:27:26
