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， # H- d# z. L7 B6 `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$ e' |: y# k6 W0 m; b+ e5 H
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 2 _1 J) e. _8 C5 x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- z6 N9 D0 X- q$ J9 o5 a' P
确定度。 * X: y% E0 R. L0 [关键词: 电线电缆; 绝缘电阻; 测量不确定度+ L% u; ?0 n9 E3 ~7 b
Research on Uncertainty Measurement of Insulation Resistance of Wires and Cables# a0 ~) D! Z2 Q. S. T. f
JI Hong) a+ ~3 \! B* G! k0 e) y4 S
( Jiangsu Province Institute of Quality Inspection and Testing，Nanjing 210007，China) 4 `! o9 H z$ p# H6 DAbstract: Insulation resistance is one of the basic electrical properties of wire and cables，and it is an important 9 P5 ^4 |' k: pquality feature of the tested object． Many quality defects of the production process can be found by the value of insulation7 ?& h1 D) V* P: `4 T" J) O
resistance，which is useful to identify the insulating materials． So it is necessary to evaluate the uncertainty measurement ( h5 O8 j2 S4 A u- g: B2 Jof insulation resistance of wires and cables． Many factors of the uncertainty measurement of 70 °C insulation1 `1 C* _4 x! a
resistance are considered，and the uncertainty of insulation resistance is given also．. L8 Z0 h4 U$ d1 P; u$ ^3 A
Key words: wires and cables; insulation resistance; uncertainty of measurement
发表于 2011-9-28 13:27:26
