NBN EN 61211 : 2005
Current
The latest, up-to-date edition.
INSULATORS OF CERAMIC MATERIAL OR GLASS FOR OVERHEAD LINES WITH A NOMINAL VOLTAGE GREATER THAN 1 000 V - IMPULSE PUNCTURE TESTING IN AIR
12-01-2013
INTRODUCTION
1 Scope and object
2 Normative references
3 Terms and definitions
4 Abbreviations
5 Impulse voltage puncture test on insulators in air
5.1 General requirements for the test
5.2 Mounting arrangements
5.3 Number of insulators to be tested
5.4 Measurement of the test voltage
5.5 Test voltage
5.6 Test procedure
5.7 Puncture determination
5.8 Acceptance criteria
5.9 Re-test procedure
Annex A (normative) Method for determining U[50] of the
insulator for the basis of
per unit (p.u.) values
Annex B (informative) Information on measuring short front
high voltage impulses
Annex ZA (normative) Normative references to international
publications with their corresponding
European publications
Bibliography
Figures
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