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AS 2989-1992

Superseded

Superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

View Superseded by
superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

Electrical equipment for coal mines - Specific requirements for high voltage circuit-breakers and disconnectors

Available format(s)

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

Superseded date

29-03-2023

Language(s)

English

Published date

01-01-1992

1 - AS 2989-1992 ELECTRICAL EQUIPMENT FOR COAL MINES - SPECIFIC REQUIREMENTS FOR HIGH VOLTAGE CIRCUIT-BREAKERS AND DISCONNECTORS
4 - PREFACE
5 - CONTENTS
7 - SECTION 1 SCOPE AND GENERAL
7 - 1.1 SCOPE
7 - 1.2 REFERENCED DOCUMENTS
7 - 1.3 DEFINITIONS
7 - 1.3.1 Disconnector
8 - SECTION 2 GENERAL REQUIREMENTS FOR DESIGN AND CONSTRUCTION
8 - 2.1 GENERAL
8 - 2.2 APPROVAL
8 - 2.3 CIRCUIT-BREAKER- GENERAL
8 - 2.3.1 Rating
8 - 2.3.2 Loss of insulating medium
8 - 2.3.3 Loss of supply
8 - 2.3.4 Operating mechanism
8 - 2.3.5 Operation counters
8 - 2.4 CIRCUIT-BREAKER- FIXED
8 - 2.4.1 General
8 - 2.4.2 Operating positions
8 - 2.4.3 Interlocking
8 - 2.5 CIRCUIT-BREAKER- WITHDRAWABLE
8 - 2.5.1 General
8 - 2.5.2 Operating positions
9 - 2.5.3 Isolation
9 - 2.5.4 Interlocking
9 - 2.6 DISCONNECTOR
9 - 2.6.1 Compliance
9 - 2.6.2 Rating
9 - 2.6.3 Operating positions
9 - 2.6.4 Visibility
9 - 2.6.5 Interlocking
9 - 2.7 RATED SHORT-TIME WITHSTAND CURRENT
9 - 2.8 ENCLOSURE
9 - 2.8.1 General
9 - 2.8.2 Mounting
9 - 2.8.3 Enclosure design
9 - 2.9 INSULATION, CABLES AND TERMINATIONS
9 - 2.10 AUXILIARY POWER SUPPLY ARRANGEMENTS
9 - 2.10.1 General
10 - 2.10.2 Regulatory authority insulation tests
10 - 2.11 EARTHING
10 - 2.11.1 General
10 - 2.11.2 Terminals
10 - 2.11.3 Doors and covers
10 - 2.12 SAFETY EARTHING OF OUTGOING HIGH VOLTAGE CIRCUIT
10 - 2.13 INTERLOCKING
10 - 2.14 OVERCURRENT AND SHORT-CIRCUIT PROTECTION
10 - 2.15 EARTH-FAULT PROTECTION
10 - 2.16 CIRCUIT-BREAKER TRIPPING DEVICE
11 - 2.17 MEASURING INSTRUMENTS
11 - 2.18 INDICATING DEVICES
11 - 2.19 REMOTE CONTROL
11 - 2.20 INTERNAL SEGREGATION
11 - 2.21 CABLE COUPLING DEVICES
11 - 2.22 TESTING FACILITIES
11 - 2.23 MARKING
11 - 2.24 WARNING LABELS
12 - SECTION 3 SPECIFIC REQUIREMENTS FOR ENCLOSURES FOR USE IN HAZARDOUS AREAS
12 - 3.1 GENERAL
12 - 3.2 FASTENERS
12 - 3.3 SEALING
12 - 3.4 INSULATED STUDS
12 - 3.5 OPERATING SPINDLE BUSHES
12 - 3.6 VIEWING WINDOW
12 - 3.7 APPROVAL
12 - 3.7.1 General
12 - 3.7.2 Tests for flame resistance of cables
12 - 3.7.3 Flammability of insulating materials
12 - 3.7.4 Test of windows and lenses
12 - 3.7.5 Pressure tests
12 - 3.7.6 Tests for intrinsically-safe circuits
12 - 3.7.7 Tests to determine explosion-protection characteristics
12 - 3.8 MAINTENANCE
13 - SECTION 4 SPECIFIC REQUIREMENTS FOR ENCLOSURES FOR USE IN NON-HAZARDOUS AREAS
13 - 4.1 GENERAL
13 - 4.2 ACCESS
13 - 4.3 SERVICE CONDITIONS
13 - 4.4 PRESSURE RELIEF
13 - 4.5 VISIBILITY OF EQUIPMENT
13 - 4.6 MAINTENANCE
14 - SECTION 5 TESTS
14 - 5.1 GENERAL
14 - 5.2 INSULATION RESISTANCE TEST
14 - 5.3 HIGH VOLTAGE TEST
14 - 5.3.1 General
14 - 5.3.2 Test voltage
14 - 5.3.3 Test equipment
14 - 5.3.4 Procedure
14 - 5.3.5 Criteria of acceptance
15 - 5.4 FUNCTION TEST
15 - 5.5 RATED SHORT-TIME WITHSTAND CURRENT
16 - APPENDIX A - TYPICAL CONNECTION DIAGRAMS

Specifies the requirements for an assembly which incorporates a high voltage circuit-breaker and an isolating device. It is limited to systems below ground at voltages up to and including 12 000 V a.c. The necessary provisions for isolation, safety earthing and regulatory inspection and testing procedures are also included.

This Standard specifies requirements for high voltage circuit-breakers and disconnectors, connected to three-phase, high voltage, power reticulation systems in underground coal mines, and controlling single outlet or multiple outlet circuits at voltages up to and including 12 200 V a.c. This Standard also includes the necessary provisions for isolation, safety earthing and, where applicable, facilities for regulatory authority inspection and testing requirements.NOTE: High voltage circuit-breakers and disconnectors are generally used on three-phase systems with nominal voltages of 6600 V and 11 000 V and may require approval by the relevant regulatory authority. Enquiries concerning approval may be made to the following: Department of Minerals and Energy, N.S.W.Department of Resource Industries, Qld Department of Mines, Tas.Department of Mines, W.A.Department of Mines and Energy, S.A.Department of Industry, Technology and Resources, Vic.

Committee
EL-023
DocumentType
Standard
ISBN
0 7262 7465 8
Pages
10
PublisherName
Standards Australia
Status
Superseded
SupersededBy
Supersedes

First published as AS 2989-1987.Second edition 1992. First published as AS 2989-1987. Second edition 1992.

AS 1614-1985 The design and use of reflectorized signs for mines and tunnels
AS 1300-1989 Electrical equipment for coal mines - Bolted flame-proof cable coupling devices
AS 1025.1-1984 High-voltage a.c. switchgear and controlgear - Switches and switch-disconnectors - For rated voltages above 1 kV and less than 52 kV
AS 2595.1-1992 Electrical equipment for coal mines - Electrical requirements for underground mining machines and accessories - Equipment for use in hazardous areas
AS 2380.7-1987 Electrical equipment for explosive atmospheres - Explosion-protection techniques - Intrinsic safety i
AS 1939-1990 Degrees of protection provided by enclosures for electrical equipment (IP Code)
AS 2006-1986 High voltage a.c. switchgear and controlgear - Circuit breakers for rated voltages above 1000 V
AS 1931.1-1996 High-voltage test techniques - General definitions and test requirements
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 3573-1988 Electrical equipment for coal mines - Glossary of terms
AS 1802-1985 Reeling and trailing electric cables for underground coal mining purposes
AS 1931.2-1996 High-voltage test techniques - Measuring systems
AS 1828-1984 Electrical equipment for explosive atmospheres - Cable glands
AS 1972-1976 Cables for use below ground in coal mines (other than trailing cables)
AS 2467-1981 Maintenance of electrical switchgear
AS 2380.2-1991 Electrical equipment for explosive atmospheres - Explosion-protection techniques Flameproof enclosure d

HB 13-2000 Electrical equipment for hazardous areas

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