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eLibrary > BS EN 61462:2007 Composite hollow insulators. Pressurized and unpressurized insulators for use in electrical equipment with rated voltage greater than 1000 V. Definitions, test methods, acceptance criteria and design recommendations >

BS EN 61462:2007 Composite hollow insulators. Pressurized and unpressurized insulators for use in electrical equipment with rated voltage greater than 1000 V. Definitions, test methods, acceptance criteria and design recommendations, 2007

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BS EN 61462:2007 Composite hollow insulators. Pressurized and unpressurized insulators for use in electrical equipment with rated voltage greater than 1000 V. Definitions, test methods, acceptance criteria and design recommendations, 2007

BS EN 61462 body copy.pdf [Go to Page]
iec61462{ed1.0}b.pdf [Go to Page]
English [Go to Page]
CONTENTS
INTRODUCTION
1 Scope and object
2 Normative references
3 Terms and definitions
4 Relationships of mechanical loads [Go to Page]
4.1 Loads from outside the insulator
4.2 Pressures
5 Marking
6 Classification of tests [Go to Page]
6.1 Design tests
6.2 Type tests
6.3 Sample tests
6.4 Routine tests
7 Design tests [Go to Page]
7.1 General
7.2 Tests on interfaces and connections of end fittings
7.3 Tests on shed and housing material
7.4 Tests on the tube material
8 Type tests (only mechanical tests) [Go to Page]
8.1 General
8.2 Test specimens
8.3 Preparation of the test specimen
8.4 Internal pressure test
8.5 Bending test
9 Sample tests [Go to Page]
9.1 Selection and number of insulators
9.2 Testing
9.3 Verification of dimensions
9.4 Mechanical tests
9.5 Galvanizing test
9.6 Check of the interface between end fittings and the housing
9.7 Re-test procedure
10 Routine tests [Go to Page]
10.1 General
10.2 Visual examination
10.3 Routine pressure test
10.4 Routine mechanical test
10.5 Routine tightness test
11 Documentation
Annex A (normative) Tolerances of form and position
Annex B (informative) General recommendations for design and construction
Annex C (informative) Principles of damage limit and use of reversible and irreversible strain caused by internal pressure and/or bending loads on composite hollow insulator tubes
Bibliography
Figures [Go to Page]
Figure 1 – Thermal-mechanical pre-stressing test – Typical cycles
Figure 2 – Thermal-mechanical pre-stressing test – Typical test arrangement
Figure 3 – Test arrangement for the leakage rate test
Figure 4 – Examples of sealing systems for composite hollow insulators
Figure A.1 – Parallelism, coaxiality and concentricity
Figure A.2 – Angular deviation of fixing holes: Example 1
Figure A.3 – Angular deviation of fixing holes: Example 2
Figure A.4 – Tolerances according to standard drawing practice
Figure B.1 – Relationship of bending loads
Figure B.2 – Relationship of pressures
Figure C.1 – Position of strain gauges for pressure load and bending load
Figure C.2 – Strain/time curve, reversible elastic phase
Figure C.3 – Strain/time curve, irreversible plastic phase, damage limit
Tables [Go to Page]
Table 1 – Mechanical loads applied to the insulator
Table 2 – Pressures applied to the insulator
Table 3 – Tests to be carried out after design changes
Table 4 – Sample sizes
Table 5 – Choice of re-test procedure
Table B.1 – Loads/stress and classification of tests
Table B.2 – Example of pressure/bending values – Practical relationship of the values [Go to Page]

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BS EN 61462:2007 Composite hollow insulators. Pressurized and unpressurized insulators for use in electrical equipment with rated voltage greater than 1000 V. Definitions, test methods, acceptance criteria and design recommendations, 2007

To continue with accurate pricing,
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