Standard No.:	GB 4909.7-1985
English Name:	Test methods for bare wires; Mandrel winding test
Chinese Name:	裸电线试验方法 卷绕试验
Chinese Classification:	K11    Bare wire
Professional Classification:	GB    National Standard
ICS Classification:	29.060.10 29.060.10    Wires 29.060.10
Source Content Issued by:	China Electrical Equipment Industry Association
Issued on:	1985-01-31
Implemented on:	1985-1-2
Status:	superseded
Superseded by:	GB/T 4909.7-2009 Test methods for bare wires - Part 7: Mandrel winding test
Superseded on:	2009-12-1
Abolished on:	2009-12-01
Target Language:	English
File Format:	PDF
Word Count:	1000 words
Translation Price(USD):	30.0
Delivery:	via email in 1~3 business day

本试验方法适用于检验标称直径为0.8~20mm的铜、铝及其合金的圆截面导体和标称尺寸a不大于20mm的异形截面导体（如电车线）弯曲性能。本试验方法是将试件围绕规定直径的试棒卷绕规定圈数，观察其表面的变化。卷绕方式可以是重复卷绕或一次卷绕。