AS 2006-1986

1 - AS 2006-1986 HIGH VOLTAGE A.C. SWITCHGEAR AND CONTROLGEAR - CIRCUIT-BREAKERS FOR RATED VOLTAGES ABOVE 1000 V
4 - PREFACE
5 - CONTENTS
8 - 1. SCOPE AND GENERAL
8 - 1.1 SCOPE.
8 - 1.2 APPLICATION.
8 - 1.3 REFERENCED DOCUMENTS.
8 - 2. SERVICE CONDITIONS
8 - 2.1 NORMAL SERVICE CONDITIONS.
8 - 2.2 SPECIAL SERVICE CONDITIONS.
8 - 3. DEFINITIONS
8 - 3.1 GENERAL.
9 - 3.101 GENERAL TERMS.
9 - 3.101.1 Switchgear and controlgear
9 - 3.101.2 Indoor switchgear and controlgear
9 - 3.101.3 Outdoor switchgear and controlgear
9 - 3.101.4 Short-circuit current
9 - 3.101.5 Isolated neutral system
9 - 3.101.6 Resonant earthed system (system earthed through an arc-suppression coil)
9 - 3.101.7 Earthed neutral system
9 - 3.101.8 Earth-fault factor at a selected location of a three-phase system (generally the point of installation of equipment)
9 - 3.101.9 Ambient air-temperature
9 - 3.101.10 Temperature rise (of a part of a circuit-breaker)
9 - 3.101.11 Single capacitor bank
9 - 3.101.12 Multiple (parallel) capacitor bank (back-to-back capacitor bank)
9 - 3.101.13 Overvoltage
9 - 3.101.14 Out-of-phase conditions
9 - 3.101.15 Out-of-phase (as prefix to a characteristic quantity)
9 - 3.101.16 Unit test
9 - 3.101.17 Loop
9 - 3.101.18 Short-line fault
9 - 3.101.19 Power factor (of a circuit)
9 - 3.101.20 External insulation
9 - 3.101.21 Internal insulation
9 - 3.101.22 Self-restoring insulation
9 - 3.101.23 Non-self-restoring insulation
10 - 3.101.24 Disruptive discharge
10 - 3.102 SWITCHING DEVICES.
10 - 3.102.1 Switching device
10 - 3.102.2 Mechanical switching device
10 - 3.102.3 Circuit-breaker
10 - 3.102.4 Dead tank circuit-breaker
10 - 3.102.5 Live tank circuit-breaker
10 - 3.102.6 Air circuit-breaker
10 - 3.102.7 Oil circuit-breaker
10 - 3.102.8 Gas-blast circuit breaker
10 - 3.102.9 Sulphur hexafluoride circuit-breaker
10 - 3.102.10 Air-blast circuit-breaker
10 - 3.102.11 Vacuum circuit-breaker
10 - 3.102.12 Restrike-free circuit-breaker
10 - 3.103 PARTS OF CIRCUIT-BREAKERS.
10 - 3.103.1 Pole
10 - 3.103.2 Main circuit
10 - 3.103.3 Control circuit
10 - 3.103.4 Auxiliary circuit
10 - 3.103.5 Contact
10 - 3.103.6 Contact piece
10 - 3.103.7 Main contact
10 - 3.103.8 Arcing contact
10 - 3.103.9 Control contact
10 - 3.103.10 Auxiliary contact
10 - 3.103.11 Auxiliary switch
10 - 3.103.12 ‘a’ contact, make contact
10 - 3.103.13 ‘b’ contact, break contact
10 - 3.103.14 Sliding contact
10 - 3.103.15 Rolling contact
10 - 3.103.16 Release
10 - 3.103.17 Arc control device
10 - 3.103.18 Position indicating device
10 - 3.103.19 Connection (bolted or the equivalent)
10 - 3.103.20 Terminal (151-01-03)
10 - 3.103.21 Making (or breaking) unit
10 - 3.103.22 Module (of a pole of a circuit-breaker)
10 - 3.104 OPERATION.
10 - 3.104.1 Operation
10 - 3.104.2 Operating cycle
10 - 3.104.3 Operating sequence
10 - 3.104.4 Closing operation
10 - 3.104.5 Opening operation
10 - 3.104.6 Auto-reclosing
10 - 3.104.7 Positive opening operation
10 - 3.104.8 Positively driven operation
10 - 3.104.9 Dependent manual operation
10 - 3.104.10 Dependent power operation
10 - 3.104.11 Stored energy operation
10 - 3.104.12 Independent manual operation
10 - 3.104.13 Closed position
10 - 3.104.14 Open position
10 - 3.104.15 Fixed trip circuit-breaker
10 - 3.104.16 Trip-free circuit-breaker
10 - 3.104.17 Instantaneous release
10 - 3.104.18 Making-current release
10 - 3.104.19 Overcurrent release
10 - 3.104.20 Definite time-delay overcurrent release)
10 - 3.104.21 Inverse time-delay overcurrent release)
10 - 3.104.22 Direct overcurrent release
10 - 3.104.23 Indirect overcurrent release
10 - 3.104.24 Shunt release
11 - 3.104.25 Undervoltage release
11 - 3.104.26 Reverse current release (d.c. only)
11 - 3.104.27 Operating current (of an overcurrent release)
11 - 3.104.28 Current setting (of an overcurrent release)
11 - 3.104.29 Current setting range (of an overcurrent release)
11 - 3.104.30 Anti-pumping device
11 - 3.104.31 Interlocking device
11 - 3.104.32 Circuit-breaker with lock-out preventing closing
11 - 3.105 CHARACTERISTIC QUANTITIES OF CIRCUIT-BREAKERS.
11 - 3.105.1 Rated value
11 - 3.105.2 Prospective current (of a circuit and with respect to a circuit-breaker)
11 - 3.105.3 Prospective peak current
11 - 3.105.4 Peak current
11 - 3.105.5 Prospective symmetrical current (of an a. c. circuit)
11 - 3.105.6 Maximum prospective peak current (of an a.c. circuit)
11 - 3.105.7 Prospective making current (for a pole of a circuit-breaker)
11 - 3.105.8 (Peak) making current
11 - 3.105.9 Prospective breaking current (for a pole of a circuit-breaker)
11 - 3.105.10 Breaking current (of a switching device)
11 - 3.105.11 Critical (breaking) current
11 - 3.105.12 Breaking capacity
11 - 3.105.13 Line-charging (line off-load) breaking capacity)
11 - 3.105.14 Cable-charging (cable off-load) breaking capacity
11 - 3.105.15 Capacitor bank breaking capacity
11 - 3.105.16 Making capacity
11 - 3.105.17 Out-of-phase (making or breaking) capacity
11 - 3.105.18 Short-circuit making capacity
11 - 3.105.19 Short-circuit breaking capacity
11 - 3.105.20 Short-time withstand current
11 - 3.105.21 Peak withstand current
11 - 3.105.22 Applied voltage
11 - 3.105.23 Recovery voltage
11 - 3.105.24 Transient recovery voltage (TRV)
11 - 3.105.25 Prospective transient recovery voltage (of a circuit)
11 - 3.105.26 Power frequency recovery voltage
11 - 3.105.27 Peak arc voltage
11 - 3.105.28 Clearance
11 - 3.105.29 Clearance between poles
11 - 3.105.30 Clearance to earth
11 - 3.105.31 Clearance between open contacts
11 - 3.105.32 Opening time
12 - 3.105.33 Arcing time
12 - 3.105.34 Break time
12 - 3.105.35 Closing time
12 - 3.105.36 Make time
12 - 3.105.37 Pre-arcing time
12 - 3.105.38 Open-close time (during auto reclosing)
12 - 3.105.39 Dead time (during auto-reclosing)
12 - 3.105.40 Reclosing time
12 - 3.105.41 Re-make time (during reclosing)
12 - 3.105.42 Close-open time
12 - 3.105.43 Make-break time
12 - 3.105.44 Minimum trip duration
12 - 3.105.45 Minimum close duration
12 - 3.105.46 Re-ignition
12 - 3.105.47 Restrike
12 - 3.105.48 Normal current
12 - 3.105.49 Peak factor (of the line transient voltage)
12 - 3.105.50 First-pole-to-clear factor of a three-phase system, and at the location of a circuit- breaker)
12 - 3.105.51 Insulation level
12 - 3.105.52 Power frequency withstand voltage
13 - 3.105.53 Impulse withstand voltage
13 - 3.105.54 Initial transient recovery voltage (ITRV)
22 - 4. RATINGS
22 - 4.0 LIST OF RATINGS.
22 - 4.1 RATED VOLTAGE.
22 - 4.2 RATED INSULATION LEVEL.
22 - 4.3 RATED FREQUENCY.
22 - 4.4 RATED NORMAL CURRENT AND TEMPERATURE RISE
22 - 4.5 RATED SHORT-TIME WITHSTAND CURRENT.
22 - 4.6 RATED PEAK WITHSTAND CURRENT.
22 - 4.7 RATED DURATION OF SHORT-CIRCUIT.
23 - 4.8 RATED SUPPLY VOLTAGE OF CLOSING AND OPENING DEVICES AND AUXILIARY CIRCUITS.
23 - 4.9 RATED SUPPLY FREQUENCY OF OPERATING DEVICES AND AUXILIARY CIRCUITS.
23 - 4.10 RATED PRESSURE OF COMPRESSED GAS SUPPLY FOR OPERATION OR INTERRUPTION.
23 - 4.11 RATED MECHANICAL LOAD OF TERMINALS.
23 - 4.101 RATED SHORT-CIRCUIT BREAKING CURRENT.
23 - 4.101.0 General.
24 - 4.101.1 A.C. component.
24 - 4.101.2 D.C. component.
24 - 4.102 RATED TRV FOR TERMINAL FAULTS.
24 - 4.102.0 General.
25 - 4.102.1 Representation of TRV waves.
25 - 4.102.2 Representation of rated TRV.
25 - 4.102.3 Standard values of rated TRV.
29 - 4.102.4 Standard values of rated ITRV.
29 - 4.103 RATED SHORT-CIRCUIT MAKING CURRENT.
29 - 4.104 RATED OPERATING SEQUENCE.
30 - 4.105 RATED CHARACTERISTICS FOR SHORTLINE FAULTS
32 - 4.106 RATED OUT-OF-PHASE BREAKING CURRENT
33 - 4.107 RATED LINE-CHARGING BREAKING CURRENT
33 - 4.108 RATED CABLE-CHARGING BREAKING CURRENT
34 - 4.109 RATED SINGLE CAPACITOR BANKBREAKING CURRENT
34 - 4.110 RATED BACK-TO-BACK CAPACITOR BANK BREAKING CURRENT
35 - 4.111 RATED CAPACITOR BANK INRUSH MAKING CURRENT
35 - 4.112 RATED SMALL INDUCTIVE BREAKING CURRENT.
35 - 4.113 RATED TIME QUANTITIES.
35 - 4.113. 0 General.
35 - 4.113. 1 Rated break time.
35 - 4.114 COORDINATION OF RATED VALUES.
38 - 5. DESIGN AND CONSTRUCTION
38 - 5.1 REQUIREMENTS FOR LIQUIDS AND GASES IN CIRCUIT-BREAKERS
38 - 5.2 REQUIREMENTS FOR GASES IN CIRCUIT-BREAKERS.
38 - 5.3 EARTHING OF CIRCUIT-BREAKERS.
38 - 5.4 AUXILIARY EQUIPMENT.
38 - 5.5 DEPENDENT POWER CLOSING-OPENING.
38 - 5.6 STORED ENERGY CLOSING-OPENING.
38 - 5.7 OPERATION OF RELEASES.
38 - 5.7.101 Overcurrent release.
38 - 5.7.102 Multiple releases.
38 - 5.8 LOW AND HIGH PRESSURE INTERLOCKING DEVICES
38 - 5.9 NAMEPLATES.
38 - 5.101 REQUIREMENTS FOR SIMULTANEITY OF POLES
38 - 5.102 GENERAL REQUIREMENTS FOR OPERATION.
40 - 5.103 PRESSURE LIMITS OF COMPRESSED GAS FOR INTERRUPTION IN GAS-BLAST CIRCUIT-BREAKERS.
40 - 5.104 VENT OUTLETS.
40 - 6. TYPE TESTS
40 - 6.0 GENERAL.
40 - 6.1 DIELECTRIC TESTS
40 - 6.1.1 Ambient air conditions during test.
40 - 6.1.2 Wet test procedure.
40 - 6.1.3 Condition of circuit-breaker during dielectric tests
40 - 6.1.4 Application of test voltage and test conditions.
40 - 6.1.5 Test voltage.
40 - 6.1.6 Lightning and switching impulse voltage tests.
41 - 6.1.7 Power-frequency voltage withstand tests.
41 - 6.1.8 Artificial pollution tests.
41 - 6.1.9 Partial discharge tests.
41 - 6.1.10 Test on auxiliary and control circuits.
42 - 6.2 RADIO INTERFERENCE VOLTAGE (RIV) TESTS
42 - 6.3 TEMPERATURE-RISE TESTS.
42 - 6.3.1 Condition of the circuit-breaker to be tested.
42 - 6.3.2 Arrangement of equipment.
42 - 6.3.3 Measurement of the temperature and the temperature rise
42 - 6.3.4 Ambient air temperature.
42 - 6.3.5 Temperature-rise test of auxiliary equipment.
42 - 6.3.6 Interpretation of the temperature-rise test.
42 - 6.4 MEASUREMENT OF THE RESISTANCE OF THE MAIN CIRCUIT
42 - 6.5 SHORT-TIME WITHSTAND CURRENT AND PEAK WITHSTAND CURRENT TEST.
42 - 6.5.0 General.
42 - 6.5.1 Arrangement of the circuit-breaker and of the test circuit
42 - 6.5.2 Test current and duration.
42 - 6.5.3 Behaviour of circuit-breaker during test.
42 - 6.5.4 Conditions of circuit-breaker after tests.
42 - 6.101 MECHANICAL AND ENVIRONMENTAL TESTS.
42 - 6.101.1 Miscellaneous provisions for mechanical and environmental tests.
43 - 6.101.2 Mechanical operation test at ambient temp-erature.
43 - 6.101.3 Low and high temperature test.
47 - 6.101.4 Humidity tests.
47 - 6.101.5 Test to prove the operation in severe ice conditions
47 - 6.101.6 Guide for static terminal load test.
51 - 6.102 MISCELLANEOUS PROVISIONS FOR MAKING AND BREAKING TESTS.
51 - 6.102.1 General.
51 - 6.102.2 Arrangement of circuit-breaker for tests.
52 - 6.102.3 General considerations concerning indirect testing methods.
53 - 6.102.4 Synthetic testing.
53 - 6.102.5 No-load operations before tests.
54 - 6.102.6 Alternative closing mechanisms.
54 - 6.102.7 Behaviour of circuit-breaker during tests.
54 - 6.102.8 Condition of circuit-breaker after tests.
55 - 6.102.9 Circuit-breakers with short arcing times.
56 - 6.103 TEST CIRCUITS FOR SHORT-CIRCUIT MAKING AND BREAKING TESTS.
56 - 6.103.1 Power factor.
56 - 6.103.2 Frequency.
56 - 6.103.3 Earthing of test circuit.
57 - 6.103.4 Connection of test circuit to circuit-breaker.
57 - 6.104 SHORT-CIRCUIT TEST QUANTITIES.
57 - 6.104.0 General.
57 - 6.104.1 Applied voltage before short-circuit making tests
57 - 6.104.2 Short-circuit (peak) making current.
59 - 6.104.3 Short-circuit breaking current.
60 - 6.104.4 D.C. component of short-circuit breaking current
60 - 6.104.5 Transient recovery voltage for terminal faults.
66 - 6.104.6 Measurement of TRV.
66 - 6.104.7 Power-frequency recovery voltage.
66 - 6.105 SHORT-CIRCUIT TEST PROCEDURE.
66 - 6.105.1 Time interval between tests.
66 - 6.105.2 Application of auxiliary power to the opening release-breaking tests
66 - 6.105.3 Application of auxiliary power to the opening release-make-break tests
66 - 6.105.4 Latching on short-circuit.
67 - 6.105.5 Invalid tests.
67 - 6.106 BASIC SHORT-CIRCUIT TEST DUTIES.
67 - 6.106.0 General.
67 - 6.106.1 Test Duty 1.
67 - 6.106.2 Test Duty 2.
68 - 6.106.3 Test Duty 3.
68 - 6.106.4 Test Duty 4.
68 - 6.106.5 Test Duty 5.
68 - 6.107 CRITICAL CURRENT TESTS.
68 - 6.107.1 Applicability.
68 - 6.107.2 Test currents.
68 - 6.107.3 Critical current Test Duties.
68 - 6.108 SINGLE-PHASE SHORT-CIRCUIT TESTS.
68 - 6.108.1 Applicability.
68 - 6.108.2 Test current and recovery voltage.
69 - 6.108.3 Test Duty.
69 - 6.109 SHORT-LINE FAULT TESTS.
69 - 6.109.1 Applicability.
69 - 6.109.2 Test current.
69 - 6.109.3 Test circuits.
69 - 6.109.4 Transient recovery voltage.
69 - 6.109.5 Test Duties.
70 - 6.109.6 Short-line fault tests with a test supply of limited power
70 - 6.110 OUT-OF-PHASE SWITCHING TESTS.
70 - 6.110.1 Applicability.
70 - 6.110.2 Test circuits.
70 - 6.110.3 Test voltages.
70 - 6.110.4 Test Duties.
70 - 6.111 CAPACITIVE CURRENT SWITCHING TESTS.
70 - 6.111.1 Applicability.
70 - 6.111.2 General.
72 - 6.111.3 Characteristics of supply circuits.
72 - 6.111.4 Earthing of the supply circuit.
73 - 6.111.5 Characteristics of the capacitive circuit to be switched.
73 - 6.111.6 Waveform of the current.
73 - 6.111.7 Test voltage.
74 - 6.111.8 Test Duties.
74 - 6.111.9 Test results.
75 - 6.112 MAGNETIZING AND SMALL INDUCTIVE SWITCHING TESTS.
75 - 6.112.1 Transformer magnetizing current for circuit-breakers with rated voltages of 100 kV and above.
75 - 6.112.2 Transformer magnetizing current for circuit-breakers with rated voltages below 100 kV
75 - 6.112.3 Transformer with a tertiary winding loaded with reactors
75 - 6.112.4 Shunt reactors.
75 - 6.112.5 High voltage motors.
75 - 6.113 EVOLVING-FAULT AND PARALLEL BREAKING TESTS
76 - 7. ROUTINE TESTS
76 - 7.0 GENERAL.
76 - 7.1 POWER-FREQUENCY VOLTAGE WITH-STAND DRY TESTS ON THE MAIN CIRCUIT.
76 - 7.2 VOLTAGE WITHSTAND TESTS ON AUXILIARY AND CONTROL CIRCUITS
76 - 7.3 MEASUREMENT OF THE RESISTANCE OF THE MAIN CIRCUIT
76 - 7.101 MECHANICAL OPERATING TESTS.
76 - 7.101.1 General.
76 - 7.101.2 Test sequences.
76 - 7.101.3 Performance of control and auxiliary equipment.
76 - 7.101.4 General measurements, inspection and tests for equipment performance
76 - 7.101.5 Performance of overcurrent releases.
77 - 7.101.6 Performance of under-voltage releases.
77 - 7.102 DESIGN AND VISUAL CHECKS.
77 - 8. GUIDE TO SELECTION OF CIRCUIT-BREAKERS FOR SERVICE
77 - 8.101 GENERAL.
78 - 8.102 SELECTION OF RATED VALUES FOR NORMAL SERVICE CONDITIONS.
78 - 8.102.1 Selection of rated voltage.
78 - 8.102.2 Insulation coordination.
78 - 8.102.3 Rated frequency.
78 - 8.102.4 Selection of rated normal current.
78 - 8.102.5 Local atmospheric and climatic conditions.
78 - 8.102.6 Use at high altitudes.
78 - 8.103 SELECTION OF RATED VALUES FOR FAULT CONDITIONS.
78 - 8.103.1 Selection of rated short-circuit breaking current
79 - 8.103.2 Selection of rated TRV, first-pole-to-clear factor and rated characteristics for short-line faults.
79 - 8.103.3 Selection of out-of-phase characteristics.
80 - 8.103.4 Selection of rated short-circuit-making current
80 - 8.103.5 Operating sequence in service.
80 - 8.103.6 Selection of rated duration of short-circuit (for circuit-breakers not filled with direct overcurrent releases)
80 - 9. INFORMATION TO BE GIVEN WITH ENQUIRIES, TENDERS AND ORDERS
80 - 9.101 INFORMATION TO BE GIVEN WITH ENQUIRIES AND ORDERS
81 - 9.102 INFORMATION TO BE GIVEN WITH TENDERS
82 - 10. TRANSPORT, STORAGE, ERECTION, MAINTENANCE AND GUIDE FOR COMMISSIONING TESTS
82 - 10.1 CONDITIONS DURING TRANSPORT, STORAGE AND ERECTION
82 - 10.2 ERECTION.
82 - 10.3 MAINTENANCE.
82 - 10.3.0 General.
82 - 10.3.101 Resistors and capacitors.
82 - 10.101 GUIDE FOR COMMISSIONING TESTS.
82 - 10.101.1 Purpose of tests.
82 - 10.101.2 Performance of tests.
82 - 11. QUALITY CONTROL DURING MANUFACTURE
83 - APPENDIX AA - CALCULATION OF TRANSIENT RECOVERY VOLTAGES FOR SHORT-LINE FAULTS FROM RATED CHARACTERISTICS
83 - AA1 BASIC APPROACH.
83 - AA2 INITIAL VOLTAGE TO EARTH.
85 - AA3 TRANSIENT VOLTAGE ON LINE SIDE.
85 - AA4 TRANSIENT VOLTAGE ON SOURCE SIDE.
86 - AA5 EXAMPLE OF CALCULATION.
87 - AA6 EXAMPLE OF CALCULATION FOR A SHORT- LINE FAULT TEST
87 - AA6.1 General.
87 - AA6.2 Unit test based on line- side unit.
89 - APPENDIX BB - CAPACITOR BANK INRUSH CURRENTS
91 - APPENDIX CC - RECORDS AND REPORTS OF TYPE TESTS FOR MAKING, BREAKING AND SHORT-TIME CURRENT PERFORMANCE
91 - CC1 INFORMATION AND RESULTS TO BE RECORDED.
91 - CC2 INFORMATION TO BE INCLUDED IN REPORTS.
91 - CC2.1 General.
91 - CC2.2 Apparatus tested.
91 - CC2.3 Rating assigned by manufacturer.
92 - CC2.4 Test conditions (for each series of tests).
92 - CC2.5 Short-circuit breaking and making tests.
92 - CC2.6 Short-time current test.
92 - CC2.7 No-load operation.
92 - CC2.8 Out-of-phase making and breaking tests.
92 - CC2.9 Capacitive current switching tests.
93 - CC2.10 Oscillographic and other records.
94 - APPENDIX DD - DETERMINATION OF SHORT-CIRCUIT POWER FACTOR
94 - DD1 INTRODUCTION.
94 - DD2 METHOD 1- CALCULATION FROM CIRCUIT CONSTANTS.
94 - DD3 METHOD 2- DETERMINATION FROM DC COMPONENT.
94 - DD4 METHOD 3- DETERMINATION WITH PILOT GENERATOR.
96 - APPENDIX EE - METHOD OF DRAWING THE ENVELOPE OF THE PROSPECTIVE TRV OF A CIRCUIT AND DETERMINING THE REPRESENTATIVE PARAMETER
96 - EE1 INTRODUCTION.
96 - EE2 DRAWING THE ENVELOPE.
96 - EE3 DETERMINATION OF PARAMETERS.
99 - APPENDIX FF - METHODS OF DETERMINING PROSPECTIVE TRANSIENT RECOVERY VOLTAGE WAVES
99 - FF1 INTRODUCTION.
100 - FF2 GENERAL SUMMARY OF THE RECOMMENDED METHODS.
100 - FF3 DETAILED CONSIDERATION OF THE RECOMMENDED METHODS.
100 - FF3.1 Group 1- Direct short-circuit breaking.
101 - FF3.2 Group 2-Power-frequency current injection.
102 - FF3.3 Group 3-Capacitance current injection.
102 - FF3.4 Groups 2 and 3-Methods of calibration.
103 - FF3.5 Group 4-Model networks.
103 - FF3.6 Group 5-Calculation from circuit parameters.
103 - FF3.7 Group 6-No-load switching of testing systems including transformers.
103 - FF4 COMPARISON OF THE METHODS.
103 - FF5 APPROXIMATION OF TRV FOR INDICATION OF SEVERITY.
112 - APPENDIX GG - TIGHTNESS SPECIFICATIONS AND TESTS
112 - GG0 SCOPE..
112 - GG1 GAS TIGHTNESS.
112 - GG1.1 Application.
112 - GG1.2 Definitions.
113 - GG1.3 Specifications for gas tightness.
113 - GG1.4 Tests.
116 - GG2 LIQUID TIGHTNESS.
116 - GG2.1 Application.
116 - GG2.2 Definitions.
116 - GG2.3 Specifications for liquid tightness.
117 - GG2.4 Tests.
118 - APPENDIX HH - EXAMPLE OF A COMMISSIONING TEST PROGRAM
118 - HH1 CHECKS AFTER ERECTION.
118 - HH1.1 General.
118 - HH1.2 Electrical circuits.
118 - HH1.3 Insulation and/ or extinguishing fluid(s).
118 - HH2 MECHANICAL TESTS AND MEASUREMENTS.
118 - HH2.1 Measurements of characteristic operating fluid pressures (if applicable).
119 - HH2.2 Measurement of consumption during operations (if applicable).
119 - HH2.3 Verification of the rated operating sequence.
119 - HH2.4 Measurement of time quantities.
119 - HH2.5 Checks of certain specific operations.
120 - HH3 ELECTRICAL TESTS AND MEASUREMENTS.
120 - HH3.1 Dielectric tests.
120 - HH3.2 Measurement of the resistance of the main circuit.
121 - APPENDIX JJ - ITEMS SUBJECT TO AGREEMENT BETWEEN THE PURCHASER AND THE MANUFACTURER
123 - ANNEX - SUMMARY OF TECHNICAL VARIATIONS BETWEEN THIS STANDARD AND THE IEC DOCUMENTS LISTED IN THE PREFACE

Applies to a.c. circuit-breakers designed for indoor and outdoor service for operation on systems with frequencies up to 60 Hz and voltages higher than 1000 V. Sections are included covering service conditions, definitions, ratings, design and construction, type and routine tests, the selection of circuit-breakers for service, information to be given with enquiries, tenders and orders, transport and storage, erection, maintenance, guide for commissioning tests and quality control during manufacture. Nine appendices giving supplementary information are included.

This standard applies to a.c. circuit-breakers designed for indoor and outdoor installation and for operation at frequencies up to and including 60 Hz on systems having voltages above 1000 V, and to the operating devices of circuit-breakers and to their auxiliary equipment.It applies only to three-pole circuit-breakers for use in three-phase systems and single-pole circuit-breakers for use in single-phase systems. Two-pole circuit-breakers for use in single-phase systems are subject to agreement between purchaser and manufacturer.NOTE: Tests to prove the performance under abnormal conditions should be subject to agreement between manufacturer and user. Such abnormal conditions are, for instance, cases where the voltage is higher than the rated voltage of the circuit-breaker, conditions which may occur due to sudden loss of load on long lines or cables, and over-voltages which may occur when closing onto long unloaded lines or cables.This standard does not apply to the following:(a) Circuit-breakers intended for use on motive power units of electrical traction equipment.(b) Circuit-breakers intended for use with overhead lines which include series capacitors.(c) Starting switches, contactors, tap-switches and similar apparatus.(d) Circuit-breakers with closing mechanisms for dependent manual operation, because in such cases rated short-circuit making-current cannot be specified and such dependent manual operation may be objectionable because of safety reasons. This standard does not necessarily apply to circuit-breakers for special conditions of service, e.g. those produced by two earth faults one of which occurs on one side of the circuit-breaker and the other on another phase on the other side of the circuit-breaker.