EN 61211:2005

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

Deals with impulse puncture testing in air of ceramic and glass insulator units of class B: cap and pin, pin type (including pin-post type) and class B long rod insulators. May be applied also in tests on Class B insulators of other materials (e.g. polymers and composites). However, it may be useful to consider the possible need to adjust the test procedure accordingly.