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AS
AS 1265-1990

AS 1265-1990

Superseded

Superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

View Superseded by
superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

Bushings for alternating voltages above 1000 V

Available format(s)

Hardcopy , PDF 1 User , PDF 3 Users , PDF 5 Users , PDF 9 Users

Superseded date

06-30-2017

Published date

01-01-1990

Publisher

Standards Australia

Preview

1 - AS 1265-1990 BUSHINGS FOR ALTERNATING VOLTAGES ABOVE 1000 V
4 - PREFACE
6 - CONTENTS
8 - SECTION ONE- GENERAL
8 - 1. Scope
8 - SECTION TWO- DEFINITIONS
8 - 2. Definitions
8 - 2.1 Bushing
8 - 2.2 Liquid-filled bushing
8 - 2.3 Liquid-insulated bushing
9 - 2.4 Gas-filled bushing
9 - 2.5 Gas-insulated bushing
9 - 2.6 Oil-impregnated paper bushing
9 - 2.7 Resin-bonded paper bushing
9 - 2.8 Resin-impregnated paper bushing
9 - 2.9 Ceramic, glass or analogous inorganic material bushing
9 - 2.10 Cast resin-insulated bushing
9 - 2.11 Composite bushing
10 - 2.12 Capacitance graded bushing
10 - 2.13 Indoor bushing
10 - 2.14 Outdoor bushing
10 - 2.15 Outdoor-indoor bushing
10 - 2.16 Indoor-immersed bushing
10 - 2.17 Outdoor-immersed bushing
10 - 2.18 Completely immersed bushing
10 - 2.19 Nominal voltage
11 - 2.20 Rated phase-to-earth voltage
11 - 2.21 Rated current
11 - 2.22 Rated thermal short-time current I
11 - 2.23 Rated dynamic current
11 - 2.24 Temperature rise
11 - 2.25 Nominal frequency
11 - 2.26 Rated density of insulating gas
11 - 2.27 Minimum operating density of insulating gas
11 - 2.28 Maximum operating pressure
11 - 2.29 Leakage rate of gas-filled and gas-insulated bushings
11 - 2.30 Insulating envelope
12 - 2.31 Creepage distance
12 - 2.32 Arcing distance
12 - 2.33 Test tap
12 - 2.34 Voltage tap
12 - 2.35 Rated voltage of the voltage tap
12 - SECTION THREE- RATINGS
12 - 3. Standard values of nominal voltage
12 - 4. Standard values of rated current
13 - 5. Standard values of rated thermal short-time current
13 - 6. Standard value of rated dynamic current
13 - 7. Minimum withstand values of cantilever load
14 - 8. Angle of mounting
14 - 9. Minimum nominal specific creepage distance
14 - 10. Temperature limits
15 - 11. Standard insulation levels
15 - 12. Maximum values of capacitance and dielectric dissipation factor of the test tap on transformer bushings
15 - SECTION FOUR- INFORMATION TO BE FURNISHED WHEN ORDERING AND MARKINGS
15 - 13. Enumeration of characteristics
15 - 13.1 Application
16 - 13.2 Classification
16 - 13.3 Ratings
16 - 13.4 Operating conditions
17 - 13.5 Design
17 - 14. Markings
17 - SECTION FIVE- OPERATING CONDITIONS
17 - 15. Temporary overvoltages
18 - 16. Altitude
18 - 17. Temperature of ambient air and immersion media
19 - SECTION SIX - TEST REQUIREMENTS
19 - 18. General
20 - 19. Test classification
20 - 19.1 Type tests
20 - 19.2 Routine tests
21 - 20. Condition of the bushings during the dielectric and thermal tests
22 - SECTION SEVEN - TYPE TESTS
22 - 21. Wet power-frequency voltage withstand test
22 - 22. Dry lightning impulse voltage withstand test
23 - 23. Dry or wet switching impulse voltage withstand test
23 - 24. Thermal stability test
24 - 25. Temperature-rise test
24 - 25.1 General
24 - 25.2 Test procedure
25 - 25.3 Measurement of temperature
26 - 26. Thermal short-time current withstand test
27 - 27. Dynamic current withstand test
27 - 28. Cantilever load withstand test
27 - 29. Tightness test on liquid-filled and liquid-insulated bushings
28 - SECTION EIGHT - ROUTINE TESTS
28 - 30. Measurement of the dielectric dissipation factor and the capacitance at ambient temperature
28 - 30.1 Measurement of the dielectric dissipation factor (tan
28 - 30.2 Maximum values of ....
29 - 30.3 Permissible values for the increase of the tan .. on capacitance graded bushings
29 - 30.4 Measurement of capacitance
29 - 31. Dry power-frequency voltage withstand test
29 - 32. Measurement of the partial discharge quantity
30 - 33. Tests of the tap insulation
31 - 34. Pressure test of gas-filled and gas-insulated bushings
31 - 35. Tightness test on liquid-filled and liquid-insulated bushings
31 - 36. Tightness test on gas-filled, gas-insulated and gas-immersed bushings
32 - 37. Tightness test at the flange or other fixing device
35 - AUSTRALIAN APPENDIX A - VARIATIONS TO IEC 137 REQUIRED FOR AUSTRALIAN CONDITIONS
35 - A1 SCOPE.
35 - A2 LIST.
37 - AUSTRALIAN APPENDIX B - APPLICABILITY OF TESTS FOR BUSHINGS WITH MAJOR INSULATION OF CERAMIC OR OTHER INORGANIC MATERIAL
38 - AUSTRALIAN APPENDIX C - APPLICABILITY OF TESTS FOR BUSHINGS WITH MAJOR INSULATION OF ORGANIC MATERIAL

Specifies bushings supplied separately for use in the construction of indoor and outdoor electrical equipment, transformers and electrical installations that are connected to a.c. systems having a rated voltage above 1000 V. The bushings are capacitance graded or non-capacitance graded. It is technically identical with and has been reproduced from IEC 137. Modifications have been included to suit Australian conditions.

This standard is applicable to bushings, as defined in Section Two, which are supplied separately, intended for use in electrical apparatus, transformers, and installations, for three-phase alternating current systems, having rated voltages above 1 000 V and frequencies between 15 Hz and 60 Hz. This standard is not applicable to bushings for use with rectifiers, rotating machines, testing transformers, or to terminals for power cables (potheads). Such bushings shall be subject to special agreement between supplier and purchaser.Moreover this standard is not applicable to insulating structures similar to bushings, which are used as support insulators inside metal-enclosed switchgear according to IEC Publication 517: High-voltage Metal-enclosed Switchgear for Rated Voltages of 72.5 kV and Above.Notes 1. - The application of this standard to bushings for other than three-phase systems should be subject to special agreement between supplier and purchaser.2. - If a bushing, due to its design or use, cannot be tested separately under the conditions specified in this standard, the test procedure should be subject to special agreement between supplier and purchaser.

Committee
EL-008
DocumentType
Standard
ISBN
0 7262 6199 8
Pages
31
PublisherName
Standards Australia
Status
Superseded
SupersededBy
Supersedes
UnderRevision

Standards Relationship
IEC 60137:1984 Identical

AS 2006-1986 High voltage a.c. switchgear and controlgear - Circuit breakers for rated voltages above 1000 V
AS 2374.5-1982 Power Transformers Ability To Withstand Short-Circuit
AS 2926-1987 Standard voltages - Alternating (50 Hz) and direct
AS 1824.1-1995 Insulation co-ordination Definitions, principles and rules
AS 1078-1984 Guide to loading of oil-immersed transformers
AS/NZS 1052:1992 CISPR specification for radio interference measuring apparatus and measurement methods
AS 2263-1995 Gas-insulated metal-enclosed switchgear for rated voltages of 72.5 kV and above
AS 1931.1-1996 High-voltage test techniques - General definitions and test requirements
AS 1372-1974 Tests on hollow insulators of ceramic material or glass for use in electrical equipment for voltages above 1000 V
AS 1018-1985 Partial discharge measurements

AS 62271.100-2005 High-voltage switchgear and controlgear High-voltage alternating current circuit-breakers (IEC 62271-100, Ed. 1.1 (2003) MOD)
AS 60076.1-2005 Power transformers General (IEC 60076-1, Ed. 2.1 (2000) MOD)
AS IEC 60437-2005 Radio interference test on high-voltage insulators
AS 2067-1984 Switchgear assemblies and ancillary equipment for alternating voltages above 1 kV
AS 2263-1995 Gas-insulated metal-enclosed switchgear for rated voltages of 72.5 kV and above
AS 62271.100-2008 High-voltage switchgear and controlgear High-voltage alternating-current circuit-breakers (IEC 62271-100, Ed. 1.2 (2006) MOD)
AS 2326.1-1991 On-load tap-changers - Requirements
AS 2024-1991 High voltage a.c. switchgear and controlgear - Switch-fuse combinations
AS 2374.1-1997 Power transformers General
AS 2374.3.1-1992 Power transformers Insulation levels and dielectric test - External clearances in air
AS 1243-1982 Voltage transformers for measurement and protection
AS 2467-2008 Maintenance of electrical switchgear
AS 2467-1981 Maintenance of electrical switchgear
AS 2374.3.0-1982 Power transformers Insulation levels and dielectric tests - General requirements
AS 60265.2-2005 High-voltage switches High-voltage switches for rated voltages of 52 kV and above (IEC 60265-2, Ed.1.0(1988) MOD)
AS 2086-1995 A.C. metal-enclosed switchgear and controlgear for rated voltages above 1 kV and up to and including 72.5 kV
AS 1025.2-1989 High-voltage a.c. switchgear and controlgear - Switches and switch-disconnectors - For rated voltages of 52 kV and above

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Hardcopy - English
PDF 1 User - English
PDF 3 Users - English
PDF 5 Users - English
PDF 9 Users - English
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