Standard No.:	GB 11604-1989
English Name:	Test methods for measuring radio interference from high voltage equipment
Chinese Name:	高压电器设备无线电干扰测试方法
Chinese Classification:	K40    Electric transmission and transformation equipment in general
Professional Classification:	GB    National Standard
Source Content Issued by:	AQSIQ
Issued on:	1989-3-21
Implemented on:	1990-3-1
Status:	superseded
Superseded by:	GB/T 11604-2015 Testing procedure of radio interference generated by high voltage equipment
Superseded on:	2016-4-1
Abolished on:	2016-04-01
Target Language:	English
File Format:	PDF
Word Count:	3000 words
Translation Price(USD):	60.0
Delivery:	via email in 1 business day

1 Subject Content and Application Scope This standard specifies the test methods for measuring radio interference for high voltage equipment This standard is applicable to the radio interference test for high voltage equipment such as AC high voltage switchgear, voltage transformer, current transformer, coupling capacitor, arrester, insulator and fittings. Test methods in this standard are limited to the radio interference transmission part of the sample and not involved in the interference of its radiation part. 2 Terms Terms adopted in this standard are in accordance with the requirements of GB 4365 - 84 "Terms for Radio Interference" and GB 2900. 19- 82 "Electrotechnical Terms-High Voltage Test Techniques and Insulation Coordination". The unit of radio interference voltage adopted in this standard is μV, which is expressed by dB with 1 μV equaling to 0 dB.

1 Subject Content and Application Scope 2 Terms 3 Test Conditions 4 Test Principle 5 Test Circuit 6 The Background Noise of the Test Circuit 7 Determination of Attenuation Coefficient of Test Circuit 8 The Attenuation Coefficient of the Resistance Network 9 Measuring Result 10 The Test Voltage and the Pressing Mode 11 Test Observation 12 Test Report Additional Explanations: