This International Standard is applicable to:<\/p>\n
dielectric tests with direct voltage;<\/p>\n<\/li>\n
dielectric tests with alternating voltage;<\/p>\n<\/li>\n
dielectric tests with impulse voltage;<\/p>\n<\/li>\n
test equipment used for dielectric tests on low-voltage equipment.<\/p>\n<\/li>\n<\/ul>\n
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.<\/p>\n
This standard is applicable to type and routine tests for objects which are subjected to high voltage tests as specified by the technical committee.<\/p>\n
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.<\/p>\n
This standard is not intended to be used for electromagnetic compatibility tests on electric or electronic equipment<\/p>\n
Tests with the combination of impulse voltages and currents are covered by IEC 61000\u20114\u20115<\/span> <\/span>.<\/p>\n<\/div>\n This standard provides the relevant technical committees as far as possible with:<\/p>\n defined terms of both general and specific applicability;<\/p>\n<\/li>\n general requirements regarding test objects and test procedures;<\/p>\n<\/li>\n methods for generation and measurement of test voltages;<\/p>\n<\/li>\n test procedures;<\/p>\n<\/li>\n methods for the evaluation of test results and to indicate criteria for acceptance;<\/p>\n<\/li>\n requirements concerning approved measuring devices and checking methods;<\/p>\n<\/li>\n measurement uncertainty.<\/p>\n<\/li>\n<\/ul>\n Alternative test procedures may be required and these should be specified by the relevant technical committees.<\/p>\n 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.<\/p>\n High-voltage test techniques for low-voltage equipment. Definitions, test and procedure requirements, test equipment<\/b><\/p>\n\n
PDF Catalog<\/h4>\n
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\n PDF Pages<\/th>\n PDF Title<\/th>\n<\/tr>\n \n 4<\/td>\n European foreword
Endorsement notice <\/td>\n<\/tr>\n\n 5<\/td>\n Annex ZA (normative) Normative references to international publications with their corresponding European publications <\/td>\n<\/tr>\n \n 6<\/td>\n English
CONTENTS <\/td>\n<\/tr>\n\n 9<\/td>\n FOREWORD <\/td>\n<\/tr>\n \n 11<\/td>\n 1 Scope
2 Normative references <\/td>\n<\/tr>\n\n 12<\/td>\n 3 Terms and definitions
3.1 General terms
3.2 Definitions related to disruptive discharge and test voltages <\/td>\n<\/tr>\n\n 13<\/td>\n 3.3 Characteristics related to the test equipment
3.4 Characteristics related to direct voltage tests <\/td>\n<\/tr>\n\n 14<\/td>\n 3.5 Characteristics related to alternating voltage tests <\/td>\n<\/tr>\n \n 15<\/td>\n 3.6 Characteristics related to impulse tests (see Figure 1)
Figures
Figure 1 \u2013 Full impulse voltage time parameters <\/td>\n<\/tr>\n\n 16<\/td>\n 3.7 Definitions relating to tolerance and uncertainty <\/td>\n<\/tr>\n \n 17<\/td>\n 4 General requirements
4.1 General <\/td>\n<\/tr>\n\n 18<\/td>\n 4.2 Atmospheric conditions for test procedures and verification of test equipment
4.3 Procedures for qualification and use of measuring systems
4.3.1 General principles <\/td>\n<\/tr>\n\n 19<\/td>\n 4.3.2 Schedule of performance tests
4.3.3 Requirements for the record of performance
4.3.4 Uncertainty <\/td>\n<\/tr>\n\n 20<\/td>\n 4.4 Tests and test requirements for an approved measuring system and its components
4.4.1 Calibration \u2013 Determination of the scale factor <\/td>\n<\/tr>\n\n 21<\/td>\n Figure 2 \u2013 Calibration by comparison over the full voltage range <\/td>\n<\/tr>\n \n 22<\/td>\n 4.4.2 Influence of load
4.4.3 Dynamic behaviour
Figure 3 \u2013 Uncertainty contributions of the calibration (example with a minimum of 5 voltage levels) <\/td>\n<\/tr>\n\n 23<\/td>\n 4.4.4 Short-term stability
4.4.5 Long-term stability <\/td>\n<\/tr>\n\n 24<\/td>\n 4.4.6 Ambient temperature effect
4.4.7 Uncertainty calculation of the scale factor <\/td>\n<\/tr>\n\n 26<\/td>\n 4.4.8 Uncertainty calculation of time parameter measurement (impulse voltages only) <\/td>\n<\/tr>\n \n 29<\/td>\n 5 Tests with direct voltage
5.1 General
5.2 Test voltage
5.2.1 Requirements for the test voltage
5.2.2 Generation of the test voltage
5.2.3 Measurement of the test voltage <\/td>\n<\/tr>\n\n 30<\/td>\n 5.3 Test procedures
5.3.1 Withstand voltage tests
Tables
Table 1 \u2013 Tests required for an approved direct voltage measuring system <\/td>\n<\/tr>\n\n 31<\/td>\n 6 Tests with alternating voltage
6.1 Test voltage
6.1.1 Requirements for the test voltage
6.1.2 Generation of the test voltage
Table 2 \u2013 Minimum currents of the test circuit <\/td>\n<\/tr>\n\n 32<\/td>\n 6.1.3 Measurement of the test voltage <\/td>\n<\/tr>\n \n 33<\/td>\n Figure 4 \u2013 Shaded area for acceptable normalised amplitude-frequency responses of measuring systems intended for single fundamental frequencies fnom (to be tested in the range (1\u2026.7) fnom)
Figure 5 \u2013 Shaded area for acceptable normalised amplitude-frequency responses of measuring systems intended for a range of fundamental frequencies fnom1 to fnom2 (to be tested in the range fnom1 to 7 fnom2) <\/td>\n<\/tr>\n\n 34<\/td>\n 6.2 Test procedures
6.2.1 Withstand voltage tests
7 Tests with impulse voltage
7.1 Test voltage
7.1.1 General
Table 3 \u2013 Tests required for an approved alternating voltage measuring system <\/td>\n<\/tr>\n\n 35<\/td>\n 7.1.2 Requirements for the test voltage
7.1.3 Generation of the test voltage
Figure 6 \u2013 1,2\/50 \u00b5s standard impulse voltage <\/td>\n<\/tr>\n\n 36<\/td>\n 7.1.4 Measurement of the test voltage and determination of impulse shape
7.2 Test procedures
7.2.1 Verification of impulse voltage waveshape
7.2.2 Impulse voltage tests
7.3 Measurement of the test voltage
7.3.1 Requirements for an approved measuring system <\/td>\n<\/tr>\n\n 37<\/td>\n 7.3.2 Uncertainty contributions
7.3.3 Dynamic behaviour
7.3.4 Requirements for measuring instrument
8 Reference measurement systems
8.1 Requirements for reference measuring systems
8.1.1 Direct voltage
8.1.2 Alternating voltage
8.1.3 Impulse voltages
8.2 Calibration of a reference measuring system
8.2.1 General
Table 4 \u2013 Tests required for an approved impulse voltage measuring system <\/td>\n<\/tr>\n\n 38<\/td>\n 8.2.2 Reference method: comparative measurement
8.3 Interval between successive calibrations of reference measuring systems
8.4 Use of reference measuring systems <\/td>\n<\/tr>\n\n 39<\/td>\n Annex A (informative) Uncertainty of measurement
A.1 General
A.2 Terms and definitions in addition to 3.7 <\/td>\n<\/tr>\n\n 40<\/td>\n A.3 Model function
A.4 Type A evaluation of standard uncertainty <\/td>\n<\/tr>\n\n 41<\/td>\n A.5 Type B evaluation of standard uncertainty <\/td>\n<\/tr>\n \n 42<\/td>\n A.6 Combined standard uncertainty <\/td>\n<\/tr>\n \n 43<\/td>\n A.7 Expanded uncertainty <\/td>\n<\/tr>\n \n 44<\/td>\n A.8 Effective degrees of freedom
A.9 Uncertainty budget
Table A.1 \u2013 Coverage factor k for effective degrees of freedom \u03bdeff (p\u00a0=\u00a095,45\u00a0%) <\/td>\n<\/tr>\n\n 45<\/td>\n A.10 Statement of the measurement result
Table A.2 \u2013 Schematic of an uncertainty budget <\/td>\n<\/tr>\n\n 46<\/td>\n Figure A.1 \u2013 Normal probability distribution p(x)
Figure A.2 \u2013 Rectangular probability distribution p(x) <\/td>\n<\/tr>\n\n 47<\/td>\n Annex B (informative) Example for the calculation of measuring uncertainties in high-voltage measurements <\/td>\n<\/tr>\n \n 48<\/td>\n Table B.1 \u2013 Result of the comparison measurement up to 500 V at a single voltage level <\/td>\n<\/tr>\n \n 49<\/td>\n Table B.2 \u2013 Summary of results for h\u00a0=\u00a05 voltage levels (VXmax\u00a0=\u00a0500 V) <\/td>\n<\/tr>\n \n 50<\/td>\n Table B.3 \u2013 Uncertainty budget of the assigned scale factor FX <\/td>\n<\/tr>\n \n 51<\/td>\n Annex C (informative) Atmospheric correction
C.1 Standard reference atmosphere
C.2 Atmospheric correction factor
C.2.1 General
C.2.2 Humidity correction factor k2 <\/td>\n<\/tr>\n\n 52<\/td>\n C.2.3 Air density correction factor k1 <\/td>\n<\/tr>\n \n 53<\/td>\n Bibliography <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":" \n\n
\n Published By<\/td>\n Publication Date<\/td>\n Number of Pages<\/td>\n<\/tr>\n \n BSI<\/b><\/a><\/td>\n 2016<\/td>\n 56<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":255081,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[2641],"product_tag":[],"class_list":{"0":"post-255075","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-bsi","8":"first","9":"instock","10":"sold-individually","11":"shipping-taxable","12":"purchasable","13":"product-type-simple"},"_links":{"self":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product\/255075","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media\/255081"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=255075"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=255075"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=255075"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}