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
Annex ZA (normative) Normative references to international
publications with their corresponding
European Publications
Annex ZB (informative) A-deviations
Bibliography