IEC 61180 pdf download.High-voltage test techniques for low-voltage equipment – Definitions, test and procedure requirements, test equipment
1 Scope
This International Standard is applicable to: – dielectric tests with direct voltage; – dielectric tests with alternating voltage; – dielectric tests with impulse voltage; – test equipment used for dielectric tests on low-voltage equipment. This standard is applicable only to tests on equipment having a rated voltage of not more than 1 kV a.c. or 1 ,5 kV d.c. This standard is applicable to type and routine tests for objects which are subjected to high voltage tests as specified by the technical committee. The test equipment comprises a voltage generator and a measuring system. This standard covers test equipment in which the measuring system is protected against external interference and coupling by appropriate screening, for example a continuous conducting shield. Therefore, simple comparison tests are sufficient to ensure valid results. This standard is not intended to be used for electromagnetic compatibility tests on electric or electronic equipment NOTE Tests with the combination of impulse voltages and currents are covered by IEC 61 000-4-5. This standard provides the relevant technical committees as far as possible with: – defined terms of both general and specific applicability; – general requirements regarding test objects and test procedures; – methods for generation and measurement of test voltages; – test procedures; – methods for the evaluation of test results and to indicate criteria for acceptance; – requirements concerning approved measuring devices and checking methods; – measurement uncertainty. Alternative test procedures may be required and these should be specified by the relevant technical committees. Care should be taken if the test object has voltage limiting devices, as they may influence the results of the test. The relevant technical committees should provide guidance for testing objects equipped with voltage limiting devices.
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply. 3.1 General terms 3.1 .1 clearance distance between two conductive parts along a string stretched across the shortest path between these conductive parts [SOURCE: IEC 60050-441 :1 984, 441 -1 7-31 ] 3.1 .2 creepage distance shortest distance along the surface of a solid insulating material between two conductive parts [SOURCE: IEC 60050-1 51 : 2001 , 1 51 -1 5-50] 3.2 Definitions related to disruptive discharge and test voltages 3.2.1 disruptive discharge failure of insulation under electric stress, in which the discharge completely bridges the insulation under test, reducing the voltage between electrodes to practically zero 3.2.2 withstand voltage specified voltage value which characterizes the insulation of the object with regard to a withstand test Note 1 to entry: Unless otherwise specified, withstand voltages are referred to standard reference atmospheric conditions (see 4.2). 3.3 Characteristics related to the test equipment 3.3.1 calibration set of operations that establishes, by reference to standards, the relationship which exists, under specified conditions, between an indication and a result of a measurement Note 1 to entry: The determination of the scale factor is included in the calibration. [SOURCE: IEC 60050-31 1 :2001 , 31 1 -01 -09, modified: note modified] 3.3.2 type test conformity test made on one or more items representative of the production Note 1 to entry: For a measuring system, this is a test performed on a component or on a complete measuring system of the same design to characterize it under operating conditions. [SOURCE: IEC 60050-1 51 : 2001 , 1 51 -1 6-1 6, modified:note added] 3.3.3 routine test conformity test made on each individual item during or after manufacture Note 1 to entry: This is a test performed on each component or on each complete measuring system to characterize it under operating conditions. [SOURCE: IEC 60050-1 51 : 2001 , 1 51 -1 6-1 7, modified:note added] 3.3.4 performance test test performed on a complete measuring system to characterize it under operating conditions 3.3.5 test equipment complete set of devices needed to generate and measure the test voltage or current applied to a test object 3.3.6 reference measuring system measuring system with its calibration traceable to relevant national and/or international standards, and having sufficient accuracy and stability for use in the approval of other systems by making simultaneous comparative measurements with specific types of waveform and ranges of voltage
IEC 61180 pdf download
