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eLibrary > BS EN IEC 62772:2023 Composite hollow core station post insulators with a.c. voltage greater than 1 000 V and d.c. voltage greater than 1 500 V. Definitions, test methods and acceptance criteria >

BS EN IEC 62772:2023 Composite hollow core station post insulators with a.c. voltage greater than 1 000 V and d.c. voltage greater than 1 500 V. Definitions, test methods and acceptance criteria, 2024

BS EN IEC 62772:2023 Composite hollow core station post insulators with a.c. voltage greater than 1 000 V and d.c. voltage greater than 1 500 V. Definitions, test methods and acceptance criteria, 2024

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Annex ZA (normative)Normative references to international publicationswith their corresponding European publications [Go to Page]
English [Go to Page]
CONTENTS
FOREWORD
INTRODUCTION
1 Scope
2 Normative references
3 Terms and definitions
4 Identification and marking
5 Environmental conditions
6 Information on transport, storage and installation
7 Classification of tests [Go to Page]
7.1 General
7.2 Design tests
Table 1 – Required design and type tests [Go to Page]
7.3 Type tests
7.4 Sample tests
7.5 Routine tests
8 Design tests [Go to Page]
8.1 General
8.2 Tests on interfaces and connections of end fittings [Go to Page]
8.2.1 General
8.2.2 Test specimens
8.2.3 Reference disruptive- discharge dry power frequency voltage test
8.2.4 Thermal mechanical pre-stressing test
8.2.5 Water immersion pre-stressing test
8.2.6 Verification tests
8.3 Assembled core load tests [Go to Page]
8.3.1 Test for the verification of the maximum design cantilever load (MDCL)
8.3.2 Test for the verification of the maximum design torsion load (MDToL)
8.3.3 Verification of the specified tension load (STL)
8.4 Tests on shed and housing material [Go to Page]
8.4.1 Hardness test
8.4.2 Accelerated weathering test
8.4.3 Tracking and erosion – 1 000 h salt fog AC voltage test
8.4.4 Flammability test
8.4.5 Hydrophobicity transfer test
8.5 Tests on the tube material [Go to Page]
8.5.1 General
8.5.2 Porosity test (Dye penetration test)
8.5.3 Water diffusion test
8.6 Water diffusion test on core with housing
9 Type tests [Go to Page]
9.1 Internal pressure test
9.2 Bending test
9.3 Specified tension load test, compression and buckling withstand load test
9.4 Electrical tests [Go to Page]
9.4.1 General
9.4.2 Mounting arrangements for electrical tests
9.4.3 Dry lightning impulse withstand voltage test
9.4.4 Dry or wet switching impulse withstand voltage test
9.4.5 Dry power-frequency withstand voltage test
9.4.6 Wet power-frequency withstand voltage test
10 Sample tests
11 Routine tests [Go to Page]
11.1 General
11.2 Routine seal leak rate test [Go to Page]
11.2.1 General
11.2.2 Test procedure
11.2.3 Acceptance criteria
12 Documentation
Annex A (informative) Qualification of fillers [Go to Page]
A.1 General
A.2 Dye penetration test with solid filler
A.3 Water diffusion test with solid filler
A.4 Tests on interfaces and connections of end fittings with filler
Figure A.1 – Example of sample preparation for water diffusion test
Annex B (informative) Load definitions, relationship of loads
Figure B.1 – Definitions according to IEC 62231
Figure B.2 – Definitions according to IEC 61462
Figure B.3 – Comparison of definitions IEC 61462 vs. IEC 62231
Annex C (informative) Principle sketch of hollow insulators design assembly
Figure C.1 – Interface description for insulator with housing made by modular assembly
Figure C.2 – Interface description for insulator with housing made by injection moulding and ouvermold end fitting
Bibliography [Go to Page]

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BS EN IEC 62772:2023 Composite hollow core station post insulators with a.c. voltage greater than 1 000 V and d.c. voltage greater than 1 500 V. Definitions, test methods and acceptance criteria, 2024

⨯To continue with accurate pricing,
please select your company type below: