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BS EN IEC 60947-1:2021 – TC

BS EN IEC 60947-1:2021 – TC

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Tracked Changes. Low-voltage switchgear and controlgear – General rules

Published By Publication Date Number of Pages
BSI 2021 660
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IEC 60947-1:2020 applies, when required by the relevant product standard, to low-voltage switchgear and controlgear hereinafter referred to as “equipment” or “device” and intended to be connected to circuits, the rated voltage of which does not exceed 1 000 V AC or 1 500 V DC. This document states the general rules and common safety requirements for low-voltage switchgear and controlgear, including: – definitions; – characteristics; – information supplied with the equipment; – normal service, mounting and transport conditions, decommissioning and dismantling; – constructional and performance requirements; – verification of characteristics and performance; – energy efficiency aspects (see Annex V); – environmental aspects. This sixth edition cancels and replaces the fifth edition published in 2007, Amendment 1:2010 and Amendment 2:2014. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: – DC values testing improvement; – update of EMC tests; – Annex B deletion; – update of requirements for environmental tests (Table Q.1); – improvement of Annex R (new examples); – deletion of digital input Type 2, and introduction of Type 3 in Annex S; – example for materials declaration (Annex W); – new Annex X (co-ordination between short-circuit protective devices associated in the same circuit) created.

PDF Catalog

PDF Pages PDF Title
1 compares BS EN IEC 60947-1:2021
2 TRACKED CHANGES
Text example 1 — indicates added text (in green)
5 Appareillage à basse tension – Partie 1: Règles générales (CEI 60947-1:2007IEC 60947-1:2020) Niederspannungsschaltgeräte – Teil 1: Allgemeine Festlegungen (IEC 60947-1:2007IEC 60947-1:2020)
6 Endorsement notice
Foreword to amendment A1
7 Endorsement notice
Endorsement notice
9 Endorsement notice
15 Table ZZA.1 — Correspondence between this European standard and Annex I of Directive 2014/30/EU [2014 OJ L96]
16 Table ZZB.1 — Correspondence between this European standard and Annex I of Directive 2014/35/EU [2014 OJ L96]
18 CONTENTS
29 INTERNATIONAL ELECTROTECHNICAL COMMISSION
31 INTRODUCTION
32 LOW-VOLTAGE SWITCHGEAR AND CONTROLGEAR –
1 General
1.1 Scope and object
33 1 Scope
1.22 Normative references
40 2 Definitions
41 3 Terms, definitions, symbols and reference clauses
3.1 General
3.2 Alphabetical index of definitions
50 2.13.3 General terms and definitions
2.1.23.3.2
2.1.33.3.3
2.1.43.3.4
2.1.63.3.6
51 2.1.73.3.7
2.1.83.3.8
2.1.93.3.9
2.1.103.3.10
2.1.113.3.11
2.1.123.3.12
52 2.1.133.3.13
2.1.14
3.3.14
3.3.15
2.1.163.3.16
2.1.173.3.17
2.1.183.3.18
53 3.3.19
2.1.203.3.20
2.1.213.3.21
3.3.24
3.3.25
54 3.3.26
3.3.27
3.3.28
3.3.29
3.3.30
3.3.31
2.23.4 Switching devices
2.2.13.4.1
55 2.2.23.4.2
2.2.33.4.3
2.2.43.4.4
2.2.53.4.5
2.2.63.4.6
2.2.73.4.7
56 2.2.83.4.8
2.2.93.4.9
2.2.103.4.10
2.2.113.4.11
2.2.123.4.12
2.2.133.4.13
57 2.2.143.4.14
2.2.173.4.17
2.2.183.4.18
2.2.193.4.19
58 2.2.203.4.20
2.2.213.4.21
2.2.223.4.22
2.2.233.4.23
3.4.24
2.33.5 Parts of switching devices
2.3.13.5.1
2.3.23.5.2
2.3.33.5.3
59 2.3.43.5.4
2.3.53.5.5
2.3.63.5.6
2.3.73.5.7
2.3.83.5.8
NOTENote 1 to entry: An arcing contact maycan serve as a main contact; it maycan be a separate contact so designed that it opens after and closes before another contact which it is intended to protect from deterioration.
2.3.93.5.9
2.3.103.5.10
60 2.3.113.5.11
2.3.123.5.12
2.3.133.5.13
2.3.143.5.14
2.3.153.5.15
2.3.163.5.16
2.3.173.5.17
NOTENote 1 to entry: The actuator maycan take the form of a handle, knob, push-button, roller, plunger, etc.
61 2.3.183.5.18
2.3.193.5.19
2.3.203.5.20
2.3.213.5.21
2.3.223.5.22
2.3.233.5.23
2.3.243.5.24
2.3.253.5.25
62 2.3.25.13.5.25.1
2.3.25.23.5.25.2
2.3.25.33.5.25.3
2.3.263.5.26
2.3.26.13.5.26.1
2.3.26.23.5.26.2
2.3.273.5.27
2.3.283.5.28
63 2.3.293.5.29
2.3.303.5.30
2.3.313.5.31
2.3.323.5.32
2.3.333.5.33
2.3.343.5.34
2.3.353.5.35
64 2.3.363.5.36
2.43.6 Operation of switching devices
2.4.13.6.1
2.4.23.6.2
2.4.33.6.3
2.4.43.6.4
65 2.4.63.6.6
2.4.73.6.7
2.4.83.6.8
2.4.93.6.9
2.4.103.6.10
2.4.113.6.11
2.4.123.6.12
2.4.133.6.13
66 2.4.143.6.14
2.4.153.6.15
2.4.173.6.17
2.4.183.6.18
2.4.193.6.19
2.4.203.6.20
67 2.4.213.6.21
3.6.22
2.4.223.6.23
2.4.233.6.24
2.4.243.6.25
2.4.253.6.26
over-currentovercurrent relay or release
2.4.263.6.27
2.4.273.6.28
2.4.283.6.29
68 2.4.293.6.30
2.4.303.6.31
2.4.313.6.32
2.4.323.6.33
2.4.333.6.34
2.4.343.6.35
2.4.353.6.36
2.4.363.6.37
2.4.373.6.38
2.4.383.6.39
69 2.53.7 Characteristic quantities
2.5.13.7.1
2.5.23.7.2
2.5.33.7.3
2.5.43.7.4
2.5.53.7.5
2.5.63.7.6
70 2.5.73.7.7
2.5.83.7.8
2.5.93.7.9
2.5.103.7.10
2.5.113.7.11
71 2.5.123.7.12
2.5.133.7.13
2.5.143.7.14
2.5.153.7.15
2.5.163.7.16
2.5.173.7.17
72 2.5.183.7.18
let-through energy Joule integral (I2t)
2.5.193.7.19
2.5.203.7.20
2.5.213.7.21
2.5.223.7.22
2.5.233.7.23.1
73 3.7.23.2
3.7.23.3
2.5.253.7.24
2.5.263.7.26
2.5.273.7.27
2.5.283.7.28
2.5.293.7.29
74 2.5.303.7.30
2.5.313.7.31
2.5.323.7.32
2.5.333.7.33
2.5.343.7.34
2.5.353.7.35
75 2.5.363.7.36
2.5.373.7.37
2.5.383.7.38
2.5.393.7.39
2.5.403.7.40
2.5.413.7.41
2.5.423.7.42
76 2.5.433.7.43
2.5.443.7.44
2.5.453.7.45
2.5.463.7.46
2.5.473.7.47
2.5.483.7.48
2.5.50
77 2.5.513.7.51
2.5.523.7.52
2.5.533.7.53
2.5.54
2.5.54.1
2.5.54.2
2.5.553.7.54
2.5.563.7.55
2.5.573.7.56
78 2.5.583.7.57
2.5.593.7.58
2.5.603.7.59
2.5.613.7.60
2.5.623.7.61
2.5.633.7.62
2.5.643.7.63
2.5.653.7.64
79 2.5.663.7.65
2.5.673.7.66
3.7.67
3.7.68
2.63.8 Tests
2.6.13.8.1
2.6.23.8.2
2.6.33.8.3
2.6.43.8.4
2.73.9 Ports
2.7.13.9.1
2.7.2
2.7.3
80 2.7.4
2.7.53.9.2
2.7.63.9.3
2.7.7
port at which a conductor or cable is connected to a pole of the main circuit of the equipment
3.10 Symbols and references clauses for characteristics described in this document
81 3 Classification
4 Characteristics
82 4.1 General
5 Characteristics
4.25.2 Type of equipment
83 4.3.1.25.3.1.2 Rated insulation voltage (Ui)
4.3.25.3.2 Currents
84 4.3.2.25.3.2.2 Conventional enclosed thermal current (Ithe)
4.3.2.35.3.2.3 Rated operational current (Ie) or rated operational power
85 4.3.35.3.3 Rated frequency
4.3.45.3.4 Rated duties
4.3.4.15.3.4.1 Eight-hour duty
4.3.4.25.3.4.2 Uninterrupted duty
4.3.4.35.3.4.3 Intermittent periodic duty or intermittent duty
86 4.3.4.45.3.4.4 Temporary duty
4.3.4.55.3.4.5 Periodic duty
4.3.5 Normal load and overload characteristics
This subclause gives general requirements concerning ratings under normal load and overload conditions.
5.3.5 Characteristics under normal load and overload conditions (see 8.2.4)
4.3.5.15.3.5.1 Ability to withstand motor switching overload currents
4.3.5.25.3.5.2 Rated making capacity
87 4.3.5.35.3.5.3 Rated breaking capacity
4.3.65.3.6 Short-circuit characteristics
4.3.6.25.3.6.2 Rated short-circuit making capacity (Icm)
88 4.3.6.35.3.6.3 Rated short-circuit breaking capacity (Icn)
4.3.6.45.3.6.4 Rated conditional short-circuit current (Iq)alternatively Icc)
4.3.75.3.7 Pole impedance of the switching device (Z)
4.45.4 Utilization category
4.55.5 Control circuits
4.5.15.5.1 Electrically or electronically controlled circuits
89 4.5.25.5.2 Air-supply control circuits (pneumatic or electro-pneumatic)
4.65.6 Auxiliary circuits
4.75.7 Relays and releases
4.85.8 Co-ordination with short-circuit protective devices (SCPD)
NOTE IEC TR 61912-1 gives guidance on co-ordination with SCPDs.
90 4.9 Switching overvoltages
56 Product information
5.16.1 Nature of information
91 5.26.2 Marking
92 5.36.3 Instructions for installation, operation and maintenance, decommissioning and dismantling
5.46.4 Environmental information
67 Normal service, mounting and transport conditions
6.17.1 Normal service conditions
93 6.1.27.1.2 Altitude
6.1.37.1.3 Atmospheric conditions
6.1.3.27.1.3.2 Pollution degree
94 6.1.47.1.4 Shock and vibration
6.27.2 Conditions during transport and storage
6.37.3 Mounting
95 78 Constructional and performance requirements
7.18.1 Constructional requirements
7.1.28.1.2 Materials
7.1.2.28.1.2.2 Glow wire testing
The suitability of materials used is verified by:
96 7.1.2.38.1.2.3 Test based on flammability category
7.1.38.1.3 Current-carrying parts and their connections
7.1.48.1.4 Clearances and creepage distances
7.1.4.28.1.4.2 Insulation coordination barriers for creepage distances
97 7.1.4.38.1.4.3 Insulation coordination barriers for clearance distances
7.1.58.1.5 Actuator
7.1.5.28.1.5.2 Direction of movement
7.1.68.1.6 Indication of the contact position
98 7.1.6.28.1.6.2 Indication by the actuator
7.1.78.1.7 Additional requirements for equipment suitable for isolation
7.1.7.28.1.7.2 Supplementary requirements for equipment with provision for electrical interlocking with contactors or circuit-breakers
99 7.1.7.38.1.7.3 Supplementary requirements for equipment provided with means for padlocking the open position
7.1.88.1.8 Terminals
100 7.1.8.38.1.8.3 Connection
7.1.8.48.1.8.4 Terminal identification and marking
7.1.98.1.9 Additional requirements for equipment provided with a neutral pole
101 7.1.108.1.10 Provisions for protective earthing
7.1.10.28.1.10.2 Protective earth terminal
7.1.10.38.1.10.3 Protective earth terminal marking and identification
102 The following requirements are only applicable to enclosures supplied or intended to be used with the equipment.
8.1.11 Dedicated enclosures for equipment
103 7.1.11.28.1.11.2 Insulation
7.1.128.1.12 Degrees of protection of enclosed equipment
7.1.138.1.13 Conduit pull-out, torque and bending with metallic conduits
7.28.2 Performance requirements
7.2.1 Operating conditions
7.2.1.28.2.1.2 Limits of operation of power operated equipment
104 7.2.1.38.2.1.3 Limits of operation of under-voltage relays and releases
7.2.1.48.2.1.4 Limits of operation of shunt releases
7.2.1.58.2.1.5 Limits of operation of current operated relays and releases
105 7.2.2.28.2.2.3 Accessible parts
7.2.2.38.2.2.4 Ambient air temperature
7.2.2.4.8.2.2.5 Main circuit
7.2.2.58.2.2.6 Control circuits
7.2.2.68.2.2.7 Windings of coils and electromagnets
106 7.2.2.8 Other parts
7.2.38.2.3 Dielectric properties
7.2.3.18.2.3.2 Impulse withstand voltage
107 7.2.3.28.2.3.3 Power-frequency or DC withstand voltage of the main, auxiliary and control circuits
7.2.3.38.2.3.4 Clearances
7.2.3.48.2.3.5 Creepage distances
108 7.2.3.58.2.3.6 Solid insulation
Text deleted
7.2.3.78.2.3.8 Requirements for equipment with protective separation
7.2.48.2.4 Ability to make, carry and break currents under no-load, normal load and overload conditions
109 7.2.4.28.2.4.2 Operational performance
7.2.4.38.2.4.3 Durability
7.2.4.3.28.2.4.3.2 Electrical durability
7.2.58.2.5 Ability to make, carry and break short-circuit currents
110 7.2.6 Switching overvoltages
8.2.6 Pole impedance
7.2.78.2.7 Leakage currents of equipment suitable for isolation
7.2.8 Pole impedance
7.38.3 Electromagnetic compatibility (EMC)
111 7.3.28.3.2 Immunity
7.3.2.2 Equipment incorporating electronic circuits
7.3.38.3.3 Emission
112 7.3.3.2 Equipment incorporating electronic circuits
7.3.3.2.2 Limits for low-frequency emissions
89 Tests
8.19.1 Kinds of test
113 8.1.29.1.2 Type tests
8.1.39.1.3 Routine tests
8.1.49.1.4 Sampling tests
9.1.5 Special tests
114 9.1.5.2 Reliability data tests
9.1.5.3 Environmental tests
8.29.2 Compliance with constructional requirements
8.2.1 Materials
8.2.1.19.2.2 Test of resistancematerials to abnormal heat and fire
8.2.1.1.29.2.2.2 Flammability, hot wire ignition and arc ignition tests (on materials)
8.2.29.2.3 Equipment
8.2.39.2.4 Enclosures for equipment
115 8.2.49.2.5 Mechanical and electrical properties of terminals
8.2.4.29.2.5.2 Tests of mechanical strength of terminals
8.2.4.39.2.5.3 Testing for damage to and accidental loosening of conductors (flexion test)
116 8.2.4.49.2.5.4 Pull-out test
8.2.4.4.29.2.5.4.2 Flat copper conductors
117 8.2.4.5.29.2.5.5.2 Construction of gauges
8.2.4.6 Tests for insertability of flat conductors with rectangular cross-section
9.2.5.6 Void
8.2.4.89.2.5.8 Ageing test for screwless-type clamping units
118 8.2.59.2.6 Verification of the effectiveness of indication of the main contact position of equipment suitable for isolation
8.2.5.1 Condition of equipment for the tests
8.2.5.29.2.6.2 Method of test
120 8.2.5.3.29.2.6.3.2 Dependent and independent power operation
8.2.69.2.7 Vacant
8.2.7.29.2.8.3 Bending test
8.2.7.39.2.8.4 Torque test
121 9.2.9 Test of earth continuity for protective earth
9.2.9.2 Earth continuity test
9.2.9.3 Test results
8.39.3 Performance
8.3.19.3.1 Test sequences
8.3.29.3.2 General test conditions
122 8.3.2.29.3.2.2 Test quantities
123 8.3.2.2.29.3.2.2.2 Tolerances on test quantities
8.3.2.2.39.3.2.2.3 Recovery voltage
8.3.2.39.3.2.3 Evaluation of test results
8.3.2.49.3.2.4 Test reports
8.3.39.3.3 Performance under no-load, normal load and overload conditions
8.3.3.29.3.3.2 Operating limits
124 8.3.3.2.29.3.3.2.2 Relays and releases
8.3.3.3.29.3.3.3.2 Measurement of the temperature of parts
125 8.3.3.3.39.3.3.3.3 Temperature-rise of a part
8.3.3.3.49.3.3.3.4 Temperature-rise of the main circuit
127 8.3.3.3.59.3.3.3.5 Temperature-rise of control circuits
8.3.3.3.69.3.3.3.6 Temperature-rise of coils of electromagnets
128 8.3.3.49.3.3.4 Dielectric properties
132 8.3.3.4.29.3.3.4.2 Routine tests
133 8.3.3.4.39.3.3.4.3 Sampling tests for verification of clearances
8.3.3.4.49.3.3.4.4 Tests for equipment with protective separation
8.3.3.59.3.3.5 Making and breaking capacities
8.3.3.5.19.3.3.5.1 General test conditions
8.3.3.5.29.3.3.5.2 Test circuit
135 8.3.3.5.49.3.3.5.4 Vacant
8.3.3.69.3.3.6 Operational performance capability
8.3.3.79.3.3.7 Durability
8.3.3.7.19.3.3.7.2 Mechanical durability
8.3.3.7.29.3.3.7.3 Electrical durability
136 8.3.3.89.3.3.8 Pole impedance
8.3.49.3.4 Performance under short-circuit conditions
8.3.4.1 General conditions for short-circuit tests
8.3.4.1.29.3.4.1.2 Test circuit
138 8.3.4.1.49.3.4.1.4 Time-constant of the test circuit
8.3.4.1.59.3.4.1.5 Calibration of the test circuit
8.3.4.1.69.3.4.1.6 Test procedure
8.3.4.1.79.3.4.1.7 Behaviour of the equipment during short-circuit making and breaking tests
139 8.3.4.1.89.3.4.1.8 Interpretation of records
8.3.4.1.99.3.4.1.9 Condition of the equipment after the tests
140 8.3.4.29.3.4.2 Short-circuit making and breaking capacities
8.3.4.39.3.4.3 Verification of the ability to carry the rated short-time withstand current
142 8.4.1.2.3 Radiated radio-frequency electromagnetic fields
8.4.1.2.4 Electrical fast transients/bursts (EFT/B)
8.4.1.2.5 Surges
8.4.1.2.6 Conducted disturbances induced by radio-frequency fields
143 8.4.1.2.7 Power frequency magnetic fields
8.4.1.2.8 Voltage dips and interruptions
8.4.1.2.9 Harmonics in the supply
8.4.2 Emission
8.4.2.1 Equipment not incorporating electronic circuits
8.4.2.2 Equipment incorporating electronic circuits
144 9.4.2.2 Electrostatic discharges
9.4.2.3 Radiated radio-frequency electromagnetic fields
9.4.2.4 Conducted disturbances induced by radio-frequency fields
9.4.2.5 Electrical fast transients/bursts
9.4.2.6 Surges
9.4.2.7 Power frequency magnetic fields
9.4.2.8 Voltage dips and interruptions
9.4.3 Emission
145 Table 1 – Nominal cross-sections of round copper conductors and approximate relationship between mm2 and AWG/kcmil sizes
(see 7.1.8.28.1.8.2)
Table 2 – Temperature-rise limits of terminals
146 Table 3 – Temperature-rise limits of accessible parts
Table 4 – Tightening torques for the verification of the mechanical strength of screw-type terminals
(see 8.2.4.29.2.5.2 and 8.3.2.19.3.2.1)
147 Table 5 – Test values for flexion and pull-out tests for round copper conductors
Table 6 – Test values for pull-out test for flat copper conductors
148 Table 7 – Maximum conductor cross-sections and corresponding gauges
149 Table 7aTable 8 – Relationship between conductor cross-section and diameter
150 Table 8 – Tolerances on test quantities
Table 9 – Test copper conductors for test currents up to 400 A inclusive
151 Table 10 – Test copper conductors for test currents above 400 A and up to 800 A inclusive
Table 11 – Test copper bars for test currents above 400 A and up to 3 150 A inclusive
152 Table 12 – Impulse withstand test voltages
153 Table 14 – Test voltages across the open contacts of equipment suitable for isolation
155 Table 16 – Values of power-factors and time-constants corresponding to test currents, and ratio n between peak and r.m.s.RMS values of current
Table 17 – Actuator test force
Table 18 – VacantTolerances on test quantities
156 Table 19 – VacantDielectric test voltage corresponding to the rated insulation voltage
Table 20 – Test values for conduit pull-out test
Table 21 – Test values for conduit bending test
Table 22 – Test values for conduit torque test
157 Table 23 – Tests for EMC – Immunity
158 Table 23 – Tests for EMC – Immunity
159 Table 24 – Acceptance criteria when EM disturbances are present
160 Figure 1 – Test equipment for flexion test
161 Figure 2 – Gauges of form A and form B
165 Figure 4 – Diagram of the test circuit for the verification of making and breaking capacities of a two-pole equipment on single-phase AC or on direct current (see 9.3.3.5.2)
166 Figure 5 – Diagram of the test circuit for the verification of making and breaking capacities of a three-pole equipment
(see 8.3.3.5.2)
167 Figure 5 – Diagram of the test circuit for the verification of making and breaking capacities of a three-pole equipment (see 9.3.3.5.2)
168 Figure 6 – Diagram of the test circuit for the verification of making and breaking capacities of a four-pole equipment
(see 8.3.3.5.2)
169 Figure 6 – Diagram of the test circuit for the verification of making and breaking capacities of a four-pole equipment (see 9.3.3.5.2)
170 Figure 7 – Schematic illustration of the recovery voltage across contacts of the first phase to clear under ideal conditions (see 8.3.3.5.29.3.3.5.2, item e))
171 Figure 8a – Diagram of a load circuit adjustment method: load star-point earthed
172 Figure 8b – Diagram of a load circuit adjustment method: supply star-point earthed
173 Figure 8 – Diagram of a load circuit adjustment method
177 Figure 10 – Diagram of the test circuit for the verification of short-circuit making and breaking capacities of a two-pole equipment on single-phase AC or on direct current (see 9.3.4.1.2)
179 Figure 11 – Diagram of the test circuit for the verification of short-circuit making and breaking capacities of a three-pole equipment (see 9.3.4.1.2)
181 Figure 12 – Diagram of the test circuit for the verification of short-circuit making and breaking capacities of a four-pole equipment (see 9.3.4.1.2)
183 Figure 13 – Example of short-circuit making and breaking test record in the case of a single-pole equipment on single-phase AC
(see 9.3.4.1.8)
185 Figure 14 – Verification of short-circuit making and breaking capacities on direct current (see 9.3.4.1.8)
186 Figure 15 – Determination of the prospective breaking current when the first calibration of the test circuit has been made at a current lower than
187 Figure 16 – Actuator test force
188 Figure 17 – Examples of ports
Figure 18 – Test set-up for the verification of immunity to electrostatic discharges
189 Figure 19 – Test set-up for the verification of immunity to radiated radio-frequency electromagnetic fields
190 Figure 20 – Test set-up for the verification of immunity to electrical fast transients/bursts
191 Figure 21 – Test set-up for the verification of immunity to conducted disturbances induced by r.f. fields on power lines
Figure 22 – Example of test set-up for the verification of immunity to conducted disturbances induced by r.f. fields on signal lines when CDN´s are not suitable
192 Figure 23 – Test set-up for the verification of immunity to power frequency magnetic fields
193 Annex A
(informative)
Table A.1 – Utilization categories used in the IEC 60947 series
199 Annex B
(informative)
(Vacant)
B.1 Examples of conditions differing from normal
B.1.1 Ambient air temperature
B.1.2 Altitude
B.1.3 Atmospheric conditions
B.1.4 Conditions of installation
B.2 Connections with other apparatus
B.3 Auxiliary contacts
B.4 Special applications
200 Annex C
(normative)
Introduction
C.1 General
C.1 Scope
C.2 Object
C.2 Object
C.3 Definitions
C.4 Designation
C.5 Degrees of protection against access to hazardous parts and against ingress of solid foreign objects indicated by the first characteristic numeral
201 C.6 Degrees of protection against ingress of water indicated by the second characteristic numeral
C.7 Degrees of protection against access to hazardous parts indicated by the additional letter
Clause 7 of IEC 60529:1989 applies.
C.8 Supplementary letters
C.9 Examples of designations with IP Code
C.10 Marking
C.11 General requirements for tests
202 C.12 Tests for protection against access to hazardous parts indicated by the first characteristic numeral
C.13 Tests for protection against ingress of solid foreign objects indicated by the first characteristic numeral
C.13.4 Dust test for first characteristic numerals 5 and 6
C.13.5.2 Acceptance conditions for first characteristic numeral 5
203 C.14.1 Test means
C.14.2 Test conditions
C.14.3 Acceptance conditions
C.15 Tests for protection against access to hazardous parts indicated by additional letter
C.16 Summary of responsibilities of relevant technical committees
207 Annex D
(informative)
D.1 Clamping unit in a connecting device
Figure D.8Figure D.1– Clamping unit in a connecting device
208 D.2 Examples of clamping units
209 Figure D.2 – Screw clamping units
212 Figure D.4 – Stud clamping units
216 Figure D.6 – Lug clamping units
217 Figure D.7 – Mantle clamping units
219 Figure D.8 – Screwless-type clamping units (sketches)
220 Annex E
(informative)
221 Figure E.1 – Determination of the actual value of the factor γ
222 Annex F
(informative)
F.1 Determination of short-circuit power-factor
F.1.1 Method I – Determination from d.c.DC component
223 F.1.2 Method II – Determination with pilot generator
F.2 Determination of short-circuit time-constant (oscillographic method)
224 Annex G
(informative)
G.1 Basic principles
Table G.1 – Minimum widths of grooves
G.2 Use of ribs
225 Figure G.1 – Measurement of ribs
235 Annex H
(informative)
INTRODUCTION
236 Table H.1 – Correspondence between the nominal voltage of the supply system and the equipment rated impulse withstand voltage, in case of overvoltage protection by surge-arresters according to IEC 60099-12
237 (informative)
238 Annex K
(normative)
K.1 General
K.1.1 Overview
K.1.2 Scope and objectObject
K.1.3 General requirements
239 K.2 Terms, definitions and symbols
K.2.1 Terms and definitions
K.2.1.1
K.2.1.2
K.2.1.3
K.2.1.4
K.2.1.5
K.2.1.5
K.2.1.6
K.2.1.6
240 K.2.1.7
K.2.1.8
K.2.2 Symbols
K.3 Method based on durability test results
K.3.1 General method
K.3.2 Test requirements
K.3.3 Number of samples
K.3.4 Characterization of a failure mode
241 Table K.1 – Failure modes of devices
K.3.5.2 Modelling method
242 K.3.5.3 Median rank regression
243 K.3.6 Useful life and upper limit of failure rate
K.3.6.2 Point estimate of the fractile (10 %) of the time to failure
K.3.6.3 Useful life
244 K.3.6.4 Upper limit of failure rate
K.3.7 Reliability data
245 K.5 Example
K.5.1 Test results
Table K.2 – Example of 15 sorted ascending times to failure of contactors
Table K.3 – Example median rank calculation
246 K.5.3 Useful life and failure rate
247 Annex L
(normative)
L.1 General
L.2 Terminal marking of impedances (alphanumerical)
L.2.1 Coils
248 L.2.2 Electromagnetic releases
L.2.2.2 Under-voltage release
L.2.3 Interlocking electromagnets
249 L.2.4 Indicating light devices
L.3 Terminal marking of contact elements for switching devices with two positions (numerical)
L.3.1 Contact elements for main circuits (main contact elements)
L.3.2 Contact elements for auxiliary circuit (auxiliary contact elements)
250 L.3.2.1L.3.2.2 Function number
L.3.2.2L.3.2.3 Sequence number
251 L.4 Terminal marking of overload protection devices
252 L.5 Distinctive number
L.6 Marking of terminals for external associated electronic circuit components, contacts and complete devices
L.6.1 Marking of terminals for external associated electronic circuit components and contacts
L.6.1.2 Marking of terminals for external associated impedances
253 L.6.1.3 Marking of terminals for external associated contacts
255 L.6.2 Marking of terminals for external complete devices
257 Annex M
(normative)
M.1 Hot wire ignition test (HWI)
M.1.1 Test sample
M.1.2 Description of test apparatus
258 Figure M.1 – Test fixture for hot wire ignition test
259 M.1.3 Conditioning
M.1.4 Test procedure
M.2 Arc ignition test (AI)
M.2.1 Test sample
M.2.2 Description of test apparatus
260 Figure M.2 – Circuit for arc ignition test
M.2.3 Conditioning
M.2.4 Test procedure
261 M.3 HWI and AI requirements
Table M.1 – HWI and AI characteristics for materials necessary to retain current carrying parts in position
262 Annex N
(normative)
N.1 General
N.2 DefinitionsTerms and definitions
N.2.1
N.2.2
N.2.3
N.2.4
263 N.2.5
N.2.6
N.2.6
N.2.7
N.2.8
N.2.9
264 N.2.10
N.2.9
N.2.10
N.2.11
N.2.12
N.3 Requirements
N.3.1 General
265 N.3.2 Dielectric requirements
N.3.2.2 Clearances
N.3.3 Construction requirements
N.4 Tests
N.4.1 General
N.4.2 Dielectric tests
N.4.2.2 Clearances verification
266 N.4.2.2.2 Application of the test voltage
N.4.2.2.3 Impulse test voltage
N.4.2.2.4 Test
N.4.2.2.5 Results to be obtained
N.4.3 Examples of constructional measures
267 Figure N.1 – Example of application with component connected between separated circuits
268 Annex O
(informative)
O.1 General
O.2 Scope of this annexObject
269 O.3 Terms and definitions
O.3.1
O.3.2
O.3.3
O.3.4
O.3.5
270 O.3.6
O.3.7
O.3.8
O.3.9
O.3.10
O.3.11
O.3.12
271 O.3.13
O.3.14
O.3.15
O.3.16
O.3.17
O.3.18
O.3.19
272 O.3.20
O.4 General considerations
274 Figure O.1 – Conceptual relationship between provisions in product standards and the environmental impacts associated with the product during its life cycle
275 O.5 Fundamentals requirements of environmentally conscious design (ECD)
Figure O.2 – Overview of ECD process
276 O.6 Environmentally conscious design process (ECD process)
O.6.1 General
O.6.2 Process steps of ECD
277 O.7 Tools for including ECD in product design and development
O.8 Relevant ISO technical committees
278 O.9 Reference documents for environmental conscious design
279 Annex P
(informative)
Table P.1 – Examples of terminal lugs for low voltage switchgear and controlgear connected to copper conductors
280 Annex Q
(normative)
Q.1 General
Q.2 Classification of equipment
281 Q.3 Tests
Q.3.1 General test conditions
Q.3.2 Test sequences
290 Annex R
(normative)
Introduction
R.1 General
R.1R.2 Object
291 R.2R.3 Definition of zones
R.2.1R.3.1 General
R.2.2R.3.2 Application of metal foil on accessible parts during normal operation or adjustment
293 Figure R.1 – Operating mechanism outside the enclosure
294 Figure R.2 – Operating space for push-button actuation
295 Figure R.2 – Application of the metallic foil to operating areas around switch actuator
297 Figure R.3 – Example of finger protected location for hazardous-live-parts in push-button vicinity
Figure R.4 – Example I of application of the foil
298 Figure R.5 – Example II of application of the foil
Figure R.6 – Example III of application of the foil
299 Figure R.7 – Application of metal foil on holes and grooves
300 Figure R.4 – Operating space for actuation by rotary means
301 Figure R.8 – Operating space for actuation by rotary means
302 Annex S
(normative)
S.1 ScopeGeneral
S.2 DefinitionsTerms and definitions
S.2.1
S.2.1
S.2.2
303 S.2.3S.2.2
S.2.4S.2.3
S.2.5S.2.4
S.3 Functional requirements
S.3.1 Rated values and operating ranges
Table S.1 – Rated values and operating ranges of incoming power supply
304 Figure S.1 – I/O parameters
305 S.3.2.2 Digital inputs (current sinking)
S.3.2.2.2 Terminology (U/I operation regions)
306 Figure S.2 – U-I operation regions of current-sinking inputs
307 Figure S.2 – U-I operation regions of current-sinking inputs
308 S.3.2.2.3 Standard operating ranges for digital inputs (current sinking)
Table S.2 – Standard operating ranges for digital inputs (current sinking)
310 S.3.2.3 Digital outputs for alternating currents (current sourcing)
S.3.2.3.2 Rated values and operating ranges (a.c.alternating current)
Table S.3 – Rated values and operating ranges for current sourcing digital a.c.AC outputs
311 Figure S.3 – Temporary overload waveform for digital a.c.AC outputs
312 S.3.2.3.3.2 Protected outputs
S.3.2.3.3.3 Short-circuit-proof outputs
S.3.2.3.3.4 Non-protected outputs
S.3.2.3.3.5 Electromechanical relay outputs
313 S.3.2.4 Digital outputs for direct current (current sourcing)
S.3.2.4.2 Rated values and operating ranges (d.c.direct current)
314 Table S.4 – Rated values and operating ranges (direct current) for current-sourcing digital DC outputs
Figure S.4 – Temporary overload waveform for digital d.c. outputs
315 Figure S.4 – Temporary overload waveform for digital DC outputs
S.4 Verification of input/output requirements
S.4.1 General
S.4.2 Verification of digital inputs
316 S.4.2.2 Reversal of signal polarity test (withstand test)
S.4.3 Verification of digital outputs
S.4.3.2 Test of protected, not-protected, and short-circuit proof outputs
Table S.5 – Overload and short-circuit tests for digital outputs
317 S.4.4 Behaviour of the equipment
S.5 General information to be provided by the manufacturer
S.5.1 Information on digital inputs (current sinking)
S.5.2 Information on digital outputs for alternating currents (current sourcing)
318 S.5.3 Information on digital outputs for direct current (current sourcing)
S.6 Digital input standard operating range equations
321 Annex T
(normative)
T.1 ScopeObject
T.1.1 General
T.1.2 Ground/earth fault detection function
T.2 DefinitionsTerms and definitions
T.2.1
T.2.2
T.2.3
T.2.4
322 T.2.5
T.2.6
T.3 Classification of electronic overload relays
T.4 Types of relays with ground/earth fault detection function
T.5 Performance requirements
T.5.1 Limits of operation of ground/earth fault electronic overload relays
Table T.1 –OperatingTripping time of ground/earth fault electronic overload relays
323 T.5.2 Limits of operation of ground/earth fault current sensing electronic relays Type CII(-A and -B)
T.5.3 Limits of operation of voltage asymmetry relays
T.5.4 Limits of operation of phase reversal relays
T.5.5 Limits of operation of current imbalance relays
T.5.6 Limits of operation of over-voltage relays and releases
324 T.6.1 Limits of operation of ground/earth fault current sensing electronic relays TypeTypes CI and CII (-A and -B)
T.6.2 Verification of inhibit function of ground/earth fault current sensing electronic relays Type CII (-A and -B)
T.6.3 Current asymmetry relays
T.6.4 Voltage asymmetry relays
T.6.5 Phase reversal relays
325 T.7 Routine and sampling tests
Figure T.1 – Test circuit for the verification of the operating characteristic of a ground/earth fault current sensing electronic relay
326 Figure T.1 – Test circuit for the verification of the operating characteristic of a ground/earth fault current sensing electronic relay
327 Annex U
(informative)
U.1 External control device (ECD)
U.1.1 Definition
U.1.1.1
U.1.2 Diagrammatic representation of an external control device
328 U.2 Control circuit configurations
U.2.1 Equipment with external control supply
330 U.2.4U.2.3 Equipment with bus interface
331 Annex V
(informative)
V.1 General
V.2 Scope of this annexObject
V.3 Terms and definitions
V.3.1
V.3.2
V.3.3
V.3.4
332 V.3.5
V.3.6
V.3.7
V.4 Electrical energy efficiency and safety
V.5 Principles on electrical energy efficiency (system approach)
V.5.1 General
V.5.2 Strategy of energy management
V.5.3 Power management with automation and control
333 V.6 Energy efficiency application
V.6.1 Saving of semiconductor losses
V.6.2 Power factor correction
V.6.3 Load shedding
V.6.4 Motor control for fixed speed applications
334 Annex W
(normative)
W.1 General
W.2 Scope of this annexObject
W.3 Reference documentsdocument
W.4 Terms and definitions
W.4.1
W.4.2
335 W.4.1
W.4.2
W.4.3
W.4.4
W.4.5
336 W.5 Material declaration requirements
W.5.1 General reporting requirements
W.5.2 Additional reporting requirements
337 W.6 Example of material declaration made according to W.5
Table W.1 – Example of main and business information in tabular form
338 Figure W.1 – Example of Main and Business information, graphical representation of the XML code
339 Figure W.2 – Example of product information, graphical representation of the XML code
Table W.3 – Example of declarable substances information in tabular form
340 Figure W.3 – Example of declarable substances information, graphical representation of the XML code
341 Table W.4 – Example of material classes information in tabular form
342 Annex X
(normative)
X.1 General
X.2 Object
343 X.3 General requirements for the co-ordination of a circuit-breaker or CPS with another SCPD
X.3.1 General considerations
X.3.2 Take-over current (IB)
X.3.3 Behaviour of C1 in association with another SCPD
X.4 Type and characteristics of the associated SCPD
X.5 Verification of selectivity
X.5.1 General
344 X.5.2 Consideration of selectivity by desk study
X.5.2.2 Determination of selectivity in the fault current (short-circuit) zone
345 X.5.2.3 Determination of selectivity limit current for specific installation conditions
X.5.3 Selectivity determined by test
346 X.6 Verification of back-up protection
X.6.1 Determination of the take-over current
X.6.2 Verification of back-up protection
X.6.3 Tests for verification of back-up protection
347 X.6.4 Results to be obtained
348 Figure X.1 – Overcurrent co-ordination between a circuit-breaker or CPS and a fuse or back-up protection by a fuse: operating characteristics
349 Figure X.2 – Total selectivity between two circuit-breakers or a circuit-breaker and a CPS
350 Figure X.3 – Back-up protection by a circuit-breaker or CPS – Operating characteristics
351 Figure X.4 – Example of test circuit for conditional short-circuit breaking capacity tests showing cable connections for a 3-pole circuit-breaker or CPS (C1)
352 Figure X.5 – Example of test circuit for the verification of selectivity
353 Bibliography
355 Bibliography
359 (normative)
366 undefined
370 Annex ZA (normative)Normative references to international publicationswith their corresponding European publications
379 English
CONTENTS
390 FOREWORD
393 INTRODUCTION
394 1 Scope
2 Normative references
398 3 Terms, definitions, symbols and reference clauses
3.1 General
3.2 Alphabetical index of definitions
403 3.3 General terms and definitions
407 3.4 Switching devices
410 3.5 Parts of switching devices
416 3.6 Operation of switching devices
421 3.7 Characteristic quantities
431 3.8 Tests
3.9 Ports
3.10 Symbols and references clauses for characteristics described in this document
432 4 Classification
5 Characteristics
5.1 Summary of the characteristics
433 5.2 Type of equipment
5.3 Rated and limiting values for the main circuit
439 5.4 Utilization category
5.5 Control circuits
440 5.6 Auxiliary circuits
5.7 Relays and releases
5.8 Co-ordination with short-circuit protective devices (SCPD)
6 Product information
6.1 Nature of information
441 6.2 Marking
442 6.3 Instructions for installation, operation and maintenance, decommissioning and dismantling
443 6.4 Environmental information
7 Normal service, mounting and transport conditions
7.1 Normal service conditions
445 7.2 Conditions during transport and storage
7.3 Mounting
8 Constructional and performance requirements
8.1 Constructional requirements
454 8.2 Performance requirements
461 8.3 Electromagnetic compatibility (EMC)
462 9 Tests
9.1 Kinds of test
464 9.2 Compliance with constructional requirements
471 9.3 Performance
491 9.4 Tests for EMC
493 Tables
Table 1 – Nominal cross-sections of round copper conductors and approximate relationship between mm2 and AWG/kcmil sizes (see 8.1.8.2)
494 Table 2 – Temperature-rise limits of terminals (see 8.2.2.2 and 9.3.3.3.4)
Table 3 – Temperature-rise limits of accessible parts (see 8.2.2.3 and 9.3.3.3.4)
495 Table 4 – Tightening torques for the verification of the mechanical strength of screw-type terminals (see 9.2.5.2 and 9.3.2.1)
496 Table 5 – Test values for flexion and pull-out tests for round copper conductors (see 9.2.5.4.1)
Table 6 – Test values for pull-out test for flat copper conductors (see 9.2.5.4.2)
497 Table 7 – Maximum conductor cross-sections and corresponding gauges (see 9.2.5.5.1)
498 Table 8 – Relationship between conductor cross-section and diameter
499 Table 9 – Test copper conductors for test currents up to 400 A inclusive (see 9.3.3.3.4)
500 Table 10 – Test copper conductors for test currents above 400 A and up to 800 A inclusive (see 9.3.3.3.4)
Table 11 – Test copper bars for test currents above 400 A and up to 3 150 A inclusive (see 9.3.3.3.4)
501 Table 12 – Impulse withstand test voltages
Table 13 – Minimum clearances in air
502 Table 14 – Test voltages across the open contacts of equipment suitable for isolation
Table 15 – Minimum creepage distances
503 Table 16 – Values of power-factors and time-constants corresponding to test currents, and ratio n between peak and RMS values of current (see 9.3.4.3, item a))
504 Table 17 – Actuator test force (see 9.2.6.2.1)
Table 18 – Tolerances on test quantities (see 9.3.4.3, item a))
Table 19 – Dielectric test voltage corresponding to the rated insulation voltage
505 Table 20 – Test values for conduit pull-out test (see 9.2.8.2)
Table 21 – Test values for conduit bending test (see 9.2.8.3)
Table 22 – Test values for conduit torque test (see 9.2.8.2 and 9.2.8.4)
506 Table 23 – Tests for EMC – Immunity (see 9.4.1)
507 Table 24 – Acceptance criteria when EM disturbances are present
Table 25 – Cross-sectional area of a copper protective conductor
508 Figures
Figure 1 – Test equipment for flexion test (see 9.2.5.3 and Table 5)
Figure 2 – Gauges of form A and form B (see 9.2.5.5.2 and Table 7)
509 Figure 3 – Diagram of the test circuit for the verification of making and breaking capacities of a single-pole equipment on single-phase AC or on direct current (see 9.3.3.5.2)
510 Figure 4 – Diagram of the test circuit for the verification of making and breaking capacities of a two-pole equipment on single-phase AC or on direct current (see 9.3.3.5.2)
511 Figure 5 – Diagram of the test circuit for the verification of making and breaking capacities of a three-pole equipment (see 9.3.3.5.2)
512 Figure 6 – Diagram of the test circuit for the verification of making and breaking capacities of a four-pole equipment (see 9.3.3.5.2)
513 Figure 7 – Schematic illustration of the recovery voltage across contacts of the first phase to clear under ideal conditions (see 9.3.3.5.2, item e))
514 Figure 8 – Diagram of a load circuit adjustment method
515 Figure 9 – Diagram of the test circuit for the verification of short-circuit making and breaking capacities of a single-pole equipment on single-phase AC or on direct current (see 9.3.4.1.2)
516 Figure 10 – Diagram of the test circuit for the verification of short-circuit making and breaking capacities of a two-pole equipment on single-phase AC or on direct current (see 9.3.4.1.2)
517 Figure 11 – Diagram of the test circuit for the verification of short-circuit making and breaking capacities of a three-pole equipment (see 9.3.4.1.2)
518 Figure 12 – Diagram of the test circuit for the verification of short-circuit making and breaking capacities of a four-pole equipment (see 9.3.4.1.2)
519 Figure 13 – Example of short-circuit making and breaking test record in the case of a single-pole equipment on single-phase AC (see 9.3.4.1.8)
520 Figure 14 – Verification of short-circuit making and breaking capacities on direct current (see 9.3.4.1.8)
521 Figure 15 – Determination of the prospective breaking current when the first calibration of the test circuit has been made at a current lower than the rated breaking capacity (see 9.3.4.1.8, item b))
522 Figure 16 – Actuator test force (see 9.2.6.2.1 and Table 17)
523 Annexes
Annex A (informative) Harmonisation of utilization categories for low-voltage switchgear and controlgear
Table A.1 – Utilization categories used in the IEC 60947 series
526 Annex B (Vacant)
527 Annex C (normative) Degrees of protection of enclosed equipment
531 Table C.1 – IP Codes (1 of 3)
534 Annex D (informative) Examples of clamping units and relationship between clamping unit and connecting device
Figure D.1 – Clamping unit in a connecting device
535 Figure D.2 – Screw clamping units
536 Figure D.3 – Pillar clamping units
537 Figure D.4 – Stud clamping units
538 Figure D.5 – Saddle clamping units
539 Figure D.6 – Lug clamping units
540 Figure D.7 – Mantle clamping units
541 Figure D.8 – Screwless-type clamping units (sketches)
542 Annex E (informative) Description of a method for adjusting the load circuit
543 Figure E.1 – Determination of the actual value of the factor γ
544 Annex F (informative) Determination of short-circuit power-factor or time-constant
546 Annex G (informative) Measurement of creepage distances and clearances
Table G.1 – Minimum widths of grooves
547 Figure G.1 – Measurement of ribs
Figure G.2 – Creepage distance across the fixed and moving insulation of contact carriers
548 Figure G.3 – Example 1
Figure G.4 – Example 2
Figure G.5 – Example 3
549 Figure G.6 – Example 4
Figure G.7 – Example 5
Figure G.8 – Example 6
550 Figure G.9 – Example 7
Figure G.10 – Example 8
551 Figure G.11 – Example 9
Figure G.12 – Example 10
552 Figure G.13 – Example 11
553 Annex H (informative) Correlation between the nominal voltage of the supply system and the rated impulse withstand voltage of equipment
554 Table H.1 – Correspondence between the nominal voltage of the supply system and the equipment rated impulse withstand voltage, in case of overvoltage protection by surge-arresters according to IEC 60099-1
555 Annex J informative) Items subject to agreement between manufacturer and user
556 Annex K (normative) Procedure to determine reliability data for electromechanical devices used in functional safety applications
559 Table K.1 – Failure modes of devices
563 Table K.2 – Example of 15 sorted ascending times to failure of contactors
564 Table K.3 – Example median rank calculation
565 Figure K.1 – Plot of Weibull median rank regression
566 Annex L (normative) Terminal marking and distinctive number
577 Annex M (normative) Flammability test
Figure M.1 – Test fixture for hot wire ignition test
579 Figure M.2 – Circuit for arc ignition test
580 Table M.1 – HWI and AI characteristics for materials necessary to retain current carrying parts in position
Table M.2 – HWI and AI characteristics for materials other than those covered by Table M.1
581 Annex N (normative) Requirements and tests for equipment with protective separation
585 Figure N.1 – Example of application with component connected between separated circuits
586 Annex O (informative) Environmentally conscious design
591 Figure O.1 – Conceptual relationship between provisions in product standards and the environmental impacts associated with the product during its life cycle
592 Figure O.2 – Overview of ECD process
595 Annex P (informative) Terminal lugs for low voltage switchgear and controlgear connected to copper conductors
Figure P.1 – Dimensions
Table P.1 – Examples of terminal lugs for low voltage switchgear and controlgear connected to copper conductors
596 Annex Q (normative) Special tests – Tests for environmental categories
598 Table Q.1 – Test sequences
602 Annex R (normative) Application of the metal foil for dielectric testing on accessible parts during operation or adjustment
604 Figure R.1 – Operating mechanism outside the enclosure
605 Figure R.2 – Application of the metallic foil to operating areas around switch actuator
606 Figure R.3 – Example of finger protected location for hazardous-live-parts in push-button vicinity
Figure R.4 – Example I of application of the foil
607 Figure R.5 – Example II of application of the foil
Figure R.6 – Example III of application of the foil
608 Figure R.7 – Application of metal foil on holes and grooves
609 Figure R.8 – Operating space for actuation by rotary means
610 Annex S (normative) Digital inputs and outputs
611 Table S.1 – Rated values and operating ranges of incoming power supply
612 Figure S.1 – I/O parameters
613 Figure S.2 – U-I operation regions of current-sinking inputs
614 Table S.2 – Standard operating ranges for digital inputs (current sinking)
615 Table S.3 – Rated values and operating ranges for current sourcing digital AC outputs
616 Figure S.3 – Temporary overload waveform for digital AC outputs
618 Table S.4 – Rated values and operating ranges (direct current) for current-sourcing digital DC outputs
619 Figure S.4 – Temporary overload waveform for digital DC outputs
621 Table S.5 – Overload and short-circuit tests for digital outputs
625 Annex T (normative) Extended functions within electronic overload relays
626 Table T.1 – Tripping time of ground/earth fault electronic overload relays
629 Figure T.1 – Test circuit for the verification of the operating characteristic of a ground/earth fault current sensing electronic relay
630 Annex U (informative) Examples of control circuit configurations
Figure U.1 – Diagrammatic representation of an external control device
631 Figure U.2 – Single supply and control input
Figure U.3 – Separate supply and control inputs
Figure U.4 – Equipment with several external control supplies
632 Figure U.5 – Equipment with bus interface
633 Annex V (informative) Power management with switchgear and controlgear for electrical energy efficiency
636 Annex W (normative) Procedure to establish material declaration
639 Table W.1 – Example of main and business information in tabular form
640 Figure W.1 – Example of Main and Business information, graphical representation of the XML code
Table W.2 – Example of product information in tabular form
641 Figure W.2 – Example of product information, graphical representation of the XML code
Table W.3 – Example of declarable substances information in tabular form
642 Figure W.3 – Example of declarable substances information, graphical representation of the XML code
643 Figure W.4 – Example of material classes information, graphical representation of the XML code
Table W.4 – Example of material classes information in tabular form
644 Annex X (normative) Co-ordination between circuit-breaker or CPS and another short-circuit protective device associated in the same circuit
650 Figure X.1 – Overcurrent co-ordination between a circuit-breaker or CPS and a fuse or back-up protection by a fuse: operating characteristics
651 Figure X.2 – Total selectivity between two circuit-breakers or a circuit-breaker and a CPS
652 Figure X.3 – Back-up protection by a circuit-breaker or CPS – Operating characteristics
653 Figure X.4 – Example of test circuit for conditional short-circuit breaking capacity tests showing cable connections for a 3-pole circuit-breaker or CPS (C1)
654 Figure X.5 – Example of test circuit for the verification of selectivity
655 Bibliography

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