AS 1306-1985

1 - AS 1306-1985 HIGH VOLTAGE A.C. SWITCHGEAR AND CONTROLGEAR - DISCONNECTORS (ISOLATORS) AND EARTHING SWITCHES
4 - PREFACE
5 - CONTENTS
7 - 1. SCOPE AND GENERAL
7 - 1.1 SCOPE.
7 - 1.2 APPLICATION.
7 - 1.3 REFERENCED DOCUMENTS.
7 - 2. SERVICE CONDITIONS
7 - 3. DEFINITIONS
7 - 3.1 GENERAL.
7 - 3.101 GENERAL TERMS.
7 - 3.101.1 Switchgear and controlgear
7 - 3.101.2 Ambient air temperature
7 - 3.101.3 Temperature rise
7 - 3.102 SWITCHING DEVICES.
7 - 3.102.1 Disconnector
7 - 3.102.2 Divided support disconnector
7 - 3.102.3 Centre-break disconnector
8 - 3.102.4 Double-break disconnector
8 - 3.102.5 Earthing switch
8 - 3.103 PARTS OF SWITCHING DEVICES.
8 - 3.103.1 Contact (of a mechanical switching device)
8 - 3.103.2 Contact piece
8 - 3.103.3 Position indicating device
8 - 3.103.4 Position signalling device
8 - 3.103.5 Terminal
8 - 3.103.6 Contact zone
8 - 3.104 CHARACTERISTIC QUANTITIES.
8 - 3.104.1 Prospective peak current
8 - 3.104.2 (Peak) Making current (of an earthing switch
8 - 3.104.3 Peak current
8 - 3.104.4 Normal current (of a disconnector)
8 - 3.104.5 Permissible duration of short-circuit current
8 - 3.104.6 Peak withstand current
8 - 3.104.7 Rated value
8 - 3.104.8 Rated insulation level
8 - 3.104.9 Rated 1-minute power-frequency withstand voltage
8 - 3.104.10 Rated impulse withstand voltage
8 - 3.104.11 Clearance between open contacts (gap)
8 - 3.104.12 Clearance to earth
8 - 3.104.13 Mechanical terminal load
8 - 4. RATINGS
8 - 4.0 LIST OF RATINGS.
9 - 4.1 RATED VOLTAGE.
9 - 4.2 RATED INSULATION LEVEL.
9 - 4.3 RATED FREQUENCY.
9 - 4.4 RATED NORMAL CURRENT AND TEMPERATURE-RISE
9 - 4.5 RATED SHORT-TIME WITHSTAND CURRENT
9 - 4.6 RATED PEAK WITHSTAND CURRENT.
9 - 4.7 RATED DURATION OF SHORT-CIRCUIT.
9 - 4.8 RATED SUPPLY VOLTAGE OF CLOSING AND OPENING DEVICES AND AUXILIARY CIRCUITS
9 - 4.9 RATED SUPPLY FREQUENCY OF OPERATING DEVICES AND AUXILIARY CIRCUITS.
9 - 4.10 RATED PRESSUREOF COMPRESSED GAS SUPPLY FOR OPERATION
9 - 4.11 RATED MECHANICAL LOAD OF TERMINALS
11 - 4.101 RATED SHORT-CIRCUIT MAKING CURRENT
11 - 4.102 RATED CONTACT ZONE.
14 - 4.103 RATED VALUES OF MAXIMUM FORCE REQUIRED FOR MANUAL OPERATION
14 - 4.104 BEHAVIOUR WHEN CARRYING RATED PEAK WITHSTAND CURRENT AND RATED SHORT-TIME WITHSTAND CURRENT.
14 - 4.104.1 Disconnectors.
14 - 4.104.2 Earthing switches.
14 - 4.105 BEHAVIOUR OF EARTHING SWITCHES WHEN MAKING SHORT-CIRCUIT CURRENTS.
14 - 4.106 COORDINATION OF RATED VOLTAGES, RATED NORMAL CURRENTS, AND RATED SHORT-TIME WITHSTAND CYURRENTS
14 - 5. DESIGN AND CONSTRUCTION
14 - 5.1 REQUIREMENTS FOR LIQUIDS.
14 - 5.2 REQUIREMENTS FOR GASES.
16 - 5.3 EARTHING.
16 - 5.4 AUXILIARY EQUIPMENT.
16 - 5.5 DEPENDENT POWER CLOSING-OPENING.
16 - 5.6 STORED ENERGY CLOSING-OPENING.
16 - 5.7 OPERATION OF RELEASES.
16 - 5.8 LOW AND HIGH PRESSURE INTERLOCKING DEVICES
16 - 5.9 NAMEPLATES.
16 - 5.10 TERMINALS.
16 - 5.11 POSITION INDICATING DEVICE.
16 - 5.101 SPECIAL REQUIREMENTS FOR EARTHING SWITCHES
16 - 5.102 LEAKAGE CURRENTS ACROSS OPEN DISCONNECTORS.
16 - 5.103 MECHANICAL STRENGTH.
16 - 5.104 POSITION OF MOVABLE CONTACT SYSTEM AND SIGNALLING.
16 - 5.104.1 Securing of position.
16 - 5.104.2 Auxiliary contacts for position signalling.
16 - 5.105 MECHANICAL AND ELECTRICAL INTERLOCKS
18 - 6. TYPE TESTS
18 - 6.0 GENERAL.
18 - 6.1 DIELECTRIC TESTS
18 - 6.1.1 Ambient air conditions during tests.
18 - 6.1.2 Wet test procedure.
18 - 6.1.3 Conditions of disconnectors and earthing switches during tests
18 - 6.1.4 Application of test voltage and test conditions.
18 - 6.1.5 Test voltage.
18 - 6.1.6 Lightning and switching impulse voltage tests.
19 - 6.1.7 Power-frequency voltage withstand tests.
19 - 6.1.8 Artificial pollution tests.
19 - 6.1.9 Partial discharge tests.
19 - 6.1.10 Test on auxiliary and control circuits.
20 - 6.2 RADIO-INTERFERENCE VOLTAGE (RIV) TEST
20 - 6.3 TEMPERATURE-RISE TESTS.
20 - 6.4 MEASUREMENT OF RESISTANCE OF THE MAIN CIRCUIT
20 - 6.5 SHORT-TIME WITHSTAND CURRENT AND PEAK WITHSTAND CURRENT TESTS
20 - 6.5.1 Arrangements of the mechanical switching device and of the test circuit.
20 - 6.101 TESTS TO PROVE THE SHORT-CIRCUIT MAKING CURRENT PERFORMANCE OF EARTHING SWITCHES
20 - 6.102 TESTS TO PROVE SATISFACTORY OPERATION AND MECHANICAL ENDURANCE.
20 - 6.102.1 General test conditions.
24 - 6.102.2 Contact zone test.
24 - 6.102.3 Mechanical endurance test.
24 - 6.102.4 Verification of operation during application of rated mechanical terminals loads
24 - 6.103 TESTS TO PROVE SATISFACTORY OPERATION UNDER SEVERE ICE CONDITIONS.
24 - 6.103.1 Applicability of tests.
24 - 6.103.2 Test arrangements.
25 - 6.103.3 Test procedure.
25 - 6.104 TESTS TO PROVE SATISFACTORY OPERATION AT MINIMUM AND MAXIMUM AMBIENT AIR TEMPERATURE.
25 - 6.104.1 General.
25 - 6.104.2 Operation at minimum ambient air temperature
25 - 6.104.3 Operation at maximum ambient air temperature
26 - 7. ROUTINE TESTS
26 - 7.0 GENERAL.
26 - 7.1 POWER-FREQUENCY VOLTAGE WITHSTAND DRY TESTS ON THE MAIN CIRCUIT.
26 - 7.2 VOLTAGE WITHSTAND TESTS ON AUXILIARY AND CONTROL CIRCUITS
26 - 7.3 MEASUREMENT OF THE RESISTANCE OF THE MAIN CIRCUIT
26 - 7.101 MECHANICAL OPERATING TESTS.
26 - 8. GUIDE TO THE SELECTION OF SWITCHING DEVICES
26 - 8.1 GENERAL.
27 - 8.2 SELECTION OF RATED VALUES FOR NORMAL SERVICE CONDITIONS.
27 - 8.2.1 Selection of rated voltage.
27 - 8.2.2 Insulation coordination.
27 - 8.2.3 Selection of rated normal current.
27 - 8.2.4 Local atmospheric and service conditions.
27 - 8.2.5 Selection of rated short-time withstand current and of rated duration of short-circuit
27 - 8.2.6 Selection of rated peak withstand current and for earthing switches of rated short-circuit making current
27 - 9. INFORMATION TO BE GIVEN WITH ENQUIRIES, TENDERS AND ORDERS
27 - 9.1 INFORMATION TO BE GIVEN WITH ENQUIRIES AND ORDERS
28 - 9.2 INFORMATION TO BE GIVEN WITH TENDERS
29 - 10. TRANSPORT, STORAGE, ERECTION AND MAINTENANCE
29 - 11. QUALITY CONTROL DURING MANUFACTURE.
30 - APPENDIX AA - PROCEDURE FOR ARRANGING PRE-ARCING CONDITION WHEN TESTING EARTHING SWITCHES FOR MAKING CAPACITY AT REDUCED VOLT
31 - APPENDIX BB - PREFERRED NOMENCLATURE FOR TYPES OF AIR INSULATED DISCONNECTORS AND EARTHING SWITCHES AND USUAL RATED VOLTAGE R
32 - APPENDIX CC - ITEMS SUBJECT TO AGREEMENT BETWEEN THE PURCHASER AND THE MANUFACTURER
33 - ANNEX - SUMMARY OF TECHNICAL VARIATIONS BETWEEN THIS STANDARD AND IEC 129