Standard No.:	GB/T 7673.4-2008
English Name:	Paper covered wires - Part 4: Paper covered combined conductors
Chinese Name:	纸包绕组线 第4部分: 纸绝缘组合导线
Chinese Classification:	K12    Wire with insulation layer
Professional Classification:	GB    National Standard
ICS Classification:	29.060.10 29.060.10    Wires 29.060.10
Issued by:	AQSIQ; SAC
Issued on:	2008-3-24
Implemented on:	2008-10-1
Status:	valid
Language:	English
File Format:	PDF
Word Count:	2000 words
Price(USD):	110.0
Delivery:	via email in 1 business day

This part of GB/T 7673 specifies the technical requirements of paper covered combined conductors (referred to as "combined conductors"); cores of combined conductors are two or more winding wires (e.g. paper covered rectangular copper wire) which compose the column of broad side or narrow side overlapped and of which the insulation layer is overlapped or covered with three or more layers of insulation papers. It is applicable to winding of transformer. This part shall be used together with GB/T 7673.1. The range of for rectangular wire conductor specified in this part: Narrow side a: (0.80≤a≤5.60)mm (R20 series is preferred) Broad side b: (2.00≤b≤16.00)mm (R20 series is preferred) For those exceed this range, it shall be determined through negotiation between the Supplier and the Demander. Combined number n: (2~12) pieces

Foreword I 1 Scope 2 Normative References 3 Definition, Code, Product Representation Method, General Provisions of Test Method and Appearance 4 Material, Insulation, Wrapping, Welding and Dimension 5 Resistance and Circuit Test 6 Elongation 7 Rebound resilience 8 Flexibility and Adhesiveness 9 Inspection Rules 10 Packaging