I.S. EN 62155:2003

FOREWORD
1 Scope and object
   1.1 General
   1.2 Hollow insulators or hollow insulator bodies
        intended for general use
   1.3 Ceramic hollow insulators intended for use with
        permanent gas pressure
2 Normative references
3 Terms and definitions
4 Insulating materials
5 General recommendations for design
   5.1 General recommendations for design of hollow
        insulators and hollow insulator bodies intended
        for general use
   5.2 Design rules for hollow insulators and hollow
        insulator bodies for use with permanent gas
        pressure
6 Classification of the tests, sampling rules and
   procedures
   6.1 Classification of the tests
   6.2 Relevant tests for type, sample and routine
        tests
   6.3 Hollow insulator or hollow insulator body
        selection
   6.4 Retest procedure for sample tests
   6.5 Quality assurance
7 General test procedures and requirements
   7.1 Verification of the dimensions and roughness
        of ground surfaces
   7.2 Mechanical failing load tests
   7.3 Temperature cycle test
   7.4 Porosity test
   7.5 Galvanizing test
8 Type tests
   8.1 Tests
   8.2 Pressure test
   8.3 Bending test
9 Sample tests
   9.1 Tests for hollow insulators or hollow insulator
        bodies intended for general use
   9.2 Tests for ceramic hollow insulators or hollow
        insulator bodies intended for use with permanent
        gas pressure
10 Routine tests
   10.1 Tests for hollow insulators or hollow insulator
        bodies intended for general use
   10.2 Tests for ceramic hollow insulators or hollow
        insulator bodies intended for use with permanent
        gas pressure
   10.3 Routine visual inspection
   10.4 Electrical routine test
   10.5 Routine mechanical tests for hollow insulators
        or hollow insulator bodies intended for general
        use
   10.6 Routine mechanical tests for ceramic hollow
        insulators or hollow insulator bodies intended
        for use with permanent gas pressure
   10.7 Routine thermal shock test
11 Documentation
   11.1 Marking
   11.2 Records
Annex A (informative) Methods of testing for tolerances
        of parallelism, coaxiality, eccentricity,
        angular deviation, camber and shed angle of
        hollow insulators or hollow insulator bodies
Annex B (informative) Methods for bending tests of
        hollow insulator bodies
Annex C (informative) Alternative test method for the
        temperature-cycle test
Annex D (informative) Bending moment equivalent to the
        design pressure
Bibliography

Applicable to: - ceramic and glass hollow insulators intended for general use in electrical equipment; - ceramic hollow insulators intended for use with a permanent gas pressure in switchgear and controlgear.