Standard No.:	GB/T 2522-2007
Chinese Name:	电工钢片（带）表面绝缘电阻、涂层附着性测试方法
English Name:	Methods of test for the determination of surface insulation resistance and lamination factor of electric sheet and strip
Professional Classification:	H21 Metal physical property test method
Professional Classification:	GB National Standard
ICS Classification:	77.040.99 Other methods of testing of metals
Issued by:
Issued on:	2007-01-11
Implemented on:	2007-06-01
Status:	ABOLISHED
Replace:	GB/T2522-1988 Magnetic sheet and strip-Methods of measurement of interlamination resistance and lamination factor and coat adhesiveness
Replace By:	GB/T2522-2017 Methods of test for the determination of coating insulation resistance and coating adhesion of electrical strip and sheet
Replace By Date:	2018-04-01
Language:	English
File Format:	PDF
Word Count:	4500 words
Price(USD):	135 (USD)
Delivery:	via email in 1-3 business day

1 Scope

This standard specifies methods of test for the determination of surface insulation resistance and lamination factor of electric sheet and strip.
This standard is applicable to tests for the determination of surface insulation resistance and lamination factor of single-side or double-side insulated electric sheet and strip.

2 Test of Surface Insulation Resistance

2.1 Test principle
The circuit diagram of equipment is as shown in Figure 1. Press 10 metal contacts with the fixed area, under the specified voltage and pressure, on the lamination surface of the steel plate. The performance of the surface insulation lamination is evaluated with the current passing through the 10 contacts.
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