High-voltage test techniques for low-voltage equipment - Part 2: Measuring system and test equipment
1 Scope
This standard specifies the characteristics test procedures applicable to the test equipment used for high-voltage dielectric tests on low-voltage equipment. It covers tests with direct, alternating or impulse voltage, impulse current, and tests with a combination of impulse voltage and impulse current. Verification procedures necessary for ensuring that the dielectric tests comply with the voltage, or current, requirements stated in GB/T 17627.1 in shape and magnitude are stated.
The test equipment comprises a voltage and/or current generator and a measuring system. This standard covers the above-mentioned test equipment in which the measuring system is protected against external interference and coupling by appropriate screening. Test equipment having measuring systems composed of non-screened components and/or connected by long leads is not covered in this standard. Such type of equipment shall be checked together with the used parts at the place of use. See GB/T 16927.2 High-voltage test techniques - Part 2: Measuring systems for the calibration procedure of such type of equipment.
2 Normative references
The following standards contain provisions which, through reference in this standard, constitute provisions of this standard. At time of publication, the editions indicated were valid. All normative documents are subject to revision, and parties to agreements based on this standard are encouraged to investigate the possibility of applying the most recent editions of the normative documents indicated below.
GB/T 2900.19-1994 Electrotechnical terminology - High-voltage test technique and insulation co-ordination
GB/T 16927.1-1997 High-voltage test techniques - Part 1: General test requirements (eqv IEC 60-1:1989)
GB/T 16927.2-1997 High-voltage test techniques - Part 2 : Measuring systems (eqv IEC 60-2:1994)
GB/T 17627.1-1998 High-voltage test techniques for low-voltage equipment - Part 1: Definitions, test and procedure requirements (eqv IEC 1180-1:1992)
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3 Definitions
For the purpose of this standard, the following definitions apply.
3.1 test equipment
complete set of devices needed to generate and measure the test voltage or current applied to a test object
Foreword II
IEC foreword III
1 Scope
2 Normative references
3 Definitions
4 General conditions for verification of test equipment
5 Verification of characteristics of direct voltage generators
6 Verification of characteristics of alternating voltage generators
7 Verification of characteristics of impulse voltage generators
8 Verification of characteristics of impulse current generators
9 Verification of characteristics of dedicated impulse voltage generators
10 Requirements for reference measuring systems
