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BSI 19/30404713 DC:2019 Edition

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BS EN IEC 60947-5-1. Low-voltage switchgear and controlgear – Part 5-1. Control circuit devices and switching elements. Electromechanical control circuit devices

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BSI 2019 127
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PDF Pages PDF Title
4 CONTENTS
16 FOREWORD
18 1 Scope
19 2 Normative references
21 3 Terms, definitions, symbols and abbreviated terms
3.1 Terms and definitions
3.1.1 General
3.1.2 Basic terms and definitions
22 3.1.3 Terms and definitions concerning automatic control switches
3.1.4 Terms and definitions concerning manually operated control switches
24 3.1.5 Terms and definitions concerning parts of control switches
26 3.1.6 Terms and definitions concerning operation of contactor relays
27 3.1.7 Terms and definitions concerning operation of pilot switches
3.1.8 Terms and definitions concerning operation of rotary switches
28 3.1.9 Terms and definitions concerning operation of mechanically operated control switches
29 3.1.10 Alphabetical index of definitions
32 3.2 Symbols and abbreviated terms
4 Classification
4.1 Contact elements
33 4.2 Control switches
4.3 Control circuit devices
4.4 Time delay switching elements
4.5 Control switch mounting
5 Characteristics
5.1 Summary of characteristics
5.1.1 General
5.1.2 Operation of a control switch
5.1.2.1 Principal application of a control switch
34 5.1.2.2 Normal conditions of use
5.1.2.3 Abnormal conditions of use
5.2 Type of control circuit device or switching element
5.2.1 Kind of control circuit device
5.2.2 Kind of switching elements
5.2.3 Number of poles
5.2.4 Kind of current
5.2.5 Interrupting medium
5.2.6 Operating conditions
5.2.6.1 Method of operation
35 5.2.6.2 Method of control
5.3 Rated and limiting values for switching elements
5.3.1 General
5.3.2 Rated voltages (of a switching element)
5.3.2.1 General
5.3.2.2 Rated operational voltage (Ue)
5.3.2.3 Rated insulation voltage (Ui)
5.3.2.4 Rated impulse withstand voltage (Uimp)
5.3.3 Currents
5.3.3.1 General
5.3.3.2 Conventional free air thermal current (Ith)
5.3.3.3 Conventional enclosed thermal current (Ithe)
36 5.3.3.4 Rated operational current (Ie)
5.3.4 Rated frequency
5.3.5 Vacant
5.3.6 Characteristics under normal and abnormal load conditions
5.3.6.1 Rated making and breaking capacities and behaviour of switching elements under normal conditions
5.3.6.2 Making and breaking capacities under abnormal conditions
5.3.7 Short-circuit characteristics
5.3.7.1 Rated conditional short-circuit current
5.4 Utilization categories for switching elements
37 5.5 Control circuits
5.6 Vacant
5.7 Vacant
5.8 Vacant
5.9 Vacant
5.10 Electrically separated contact elements
5.11 Actuating quantities for pilot switches
38 5.12 Pilot switches having two or more contact elements
6 Product information
6.1 Nature of information
39 6.2 Marking
6.2.1 General
6.2.2 Terminal identification and marking
6.2.3 Functional markings
6.2.4 Emergency stop
6.2.5 Operating diagram
6.2.5.1 General
40 6.2.5.2 Position indication and contact position
6.2.5.3 Terminal markings for operating diagrams
6.2.6 Time delay markings
6.3 Instructions for installation, operation and maintenance, decommissioning and dismantling
41 6.4 Environmental information
6.4.1 Environmentally conscious design process (ECD process)
6.4.2 Procedure to establish material declaration
6.5 Additional information
7 Normal service, mounting and transport conditions
7.1 Normal service conditions
7.1.1 Ambient air temperature
7.1.2 Altitude
7.1.3 Atmospheric conditions
7.1.3.1 Humidity
7.1.3.2 Pollution degree
7.1.4 Shock and vibration
42 7.2 Conditions during transport and storage
7.3 Mounting
7.3.1 General
7.3.2 Mounting of single hole mounted devices
7.3.2.1 Dimensions
7.3.2.2 Location of the key recess (if any)
7.3.2.3 Range of panel thickness
7.3.2.4 Grouping of devices
43 8 Constructional and performance requirements
8.1 Constructional requirements
8.1.1 General
8.1.2 Materials
8.1.2.1 General materials requirements
8.1.2.2 Glow-wire testing
44 8.1.2.3 Test based on flammability category
8.1.3 Current-carrying parts and their connections
8.1.4 Clearances and creepage distances
8.1.5 Actuator
8.1.5.1 Insulation
8.1.5.2 Direction of movement
8.1.5.3 Actuating force (or moment)
8.1.5.4 Limitation of rotation (of a rotary switch)
8.1.5.5 Emergency stop
8.1.6 Indication of the contact position
45 8.1.7 Conditions for control switches suitable for isolation
8.1.8 Terminals
8.1.9 Vacant
8.1.10 Provisions for protective earthing
8.1.11 Enclosures for equipment
8.1.12 Degrees of protection of enclosed equipment
8.1.13 Conduit pull-out, torque and bending with metallic conduits
8.1.14 Requirements for control circuit devices with artificial optical radiation
8.1.15 Biological and chemical effects
46 8.1.16 Hygienic design
8.1.17 Safety related security
8.1.18 Limited energy source
8.1.18.1 General
8.1.18.2 Limited energy source with galvanic separation
8.1.18.3 Limited energy source with current limiting impedance
47 8.1.19 Fault and abnormal conditions
8.1.20 Stored charge energy circuit
8.2 Performance requirements
8.2.1 Operating conditions
8.2.1.1 General
8.2.1.2 Limits of operation of contactor relays
8.2.2 Temperature-rise
8.2.3 Dielectric properties
48 8.2.4 Ability to make and break under normal and abnormal load conditions
8.2.4.1 Making and breaking capacities
8.2.4.2 Vacant
8.2.4.3 Durability
8.2.5 Conditional short-circuit current
8.2.6 Vacant
8.2.7 Additional requirements for control switches suitable for isolation
8.2.8 Maximum recovery time
8.3 Electromagnetic compatibility (EMC)
8.3.1 General
49 8.3.2 Immunity
8.3.3 Emission
8.4 Special requirements
8.4.1 Class II control circuit devices
8.4.2 Additional requirements for control circuit devices with integrally connected cables
8.4.3 Additional requirements for semiconductor switching elements for control circuit devices
8.4.4 Special requirements for indicator lights, indicating towers and their optional audible functions
8.4.5 Special requirements for control switches with direct opening action
8.4.6 Special requirements for mechanically linked contact elements
50 8.4.7 Additional requirements for control circuit devices incorporating a built-in communication interface (SDCI)
56 9 Tests
9.1 Kinds of test
9.1.1 General
57 9.1.2 Type tests
9.1.3 Routine tests
9.1.4 Sampling tests
58 9.1.5 Special tests
9.1.5.1 General
9.1.5.2 Durability tests
9.1.5.3 Reliability data tests
9.1.5.4 Environmental tests
9.2 Compliance with constructional requirements
9.2.1 General
9.2.2 Test of materials to abnormal heat and fire
9.2.2.1 Glow-wire test (on equipment)
9.2.2.2 Flammability, hot wire ignition and arc ignition tests (on materials)
9.2.3 Equipment
59 9.2.4 Degrees of protection
9.2.5 Mechanical and electrical properties of terminals
9.2.5.1 General conditions for tests
9.2.5.2 Tests of mechanical strength of terminals
9.2.5.3 Testing for damage to and accidental loosening of conductors (flexion test)
9.2.5.4 Pull-out test
9.2.5.5 Test for insertability of unprepared round copper conductors having the maximum cross-section
9.2.5.6 Void
9.2.5.7 Electrical performance of screwless-type clamping units
60 9.2.5.8 Ageing test for screwless-type clamping units
9.2.6 Verification of actuating force (or moment)
9.2.7 Verification of limitation of rotation (of a rotary switch)
9.2.8 Conduit pull-out test, torque test and bending test with metallic conduits
9.2.9 Test of earth continuity for protective earth
61 9.2.10 Limited energy source test
9.2.11 Breakdown of components
9.2.11.1 General
9.2.11.2 Breakdown of component test
62 9.2.12 Artificial optical radiation test
9.3 Performance
9.3.1 Test sequences
63 9.3.2 General test conditions
9.3.2.1 General requirements
9.3.2.2 Test quantities
9.3.2.3 Evaluation of test results
9.3.2.4 Test reports
64 9.3.3 Performance under no-load, normal load and abnormal load conditions
9.3.3.1 Operation
9.3.3.2 Operating limits of contactor relays
9.3.3.3 Temperature-rise
9.3.3.4 Dielectric properties
9.3.3.4.1 Type tests
9.3.3.4.2 Routine tests
65 9.3.3.4.3 Sampling tests
9.3.3.4.4 Tests for equipment with protective separation
9.3.3.5 Making and breaking capacities
9.3.3.5.1 General
9.3.3.5.2 Test circuits and connections
66 9.3.3.5.3 Making and breaking capacities of switching elements under normal conditions
9.3.3.5.4 Making and breaking capacities of switching elements under abnormal conditions
9.3.3.5.5 Vacant
9.3.3.5.6 Results to be obtained
9.3.4 Performance under conditional short-circuit current
9.3.4.1 General conditions for short-circuit tests
9.3.4.2 Test procedure
67 9.3.4.3 Test circuit and test quantities
9.3.4.4 Condition of the switching element after the test
9.4 Tests for EMC
9.4.1 General
68 9.4.2 Immunity
9.4.2.1 Electrostatic discharges
9.4.2.2 Radiated radio-frequency electromagnetic fields
9.4.2.3 Electrical fast transients/bursts
9.4.2.4 Surges
9.4.2.5 Conducted disturbances induced by radio-frequency fields
9.4.2.6 Power-frequency magnetic fields
69 9.4.2.7 Voltage dips and interruptions
9.4.3 Emission
9.4.4 Test results and test report
76 Annex A (normative) Electrical ratings based on utilization categories (see 4.1)
78 Annex B (normative) Example of inductive test loads for DC contacts
B.1 General
B.2 Construction
80 Annex C (normative) Special tests – Durability tests
C.1 General
C.1.1 Durability declaration
C.1.2 Test procedures
C.1.2.1 General
C.1.2.2 Single 8 test
C.1.2.3 Double 3 test
81 C.1.3 Failure criteria
C.2 Mechanical durability
C.2.1 General
C.2.2 Test procedures
C.3 Electrical durability
C.3.1 General
C.3.2 Test procedures
C.3.2.1 General
82 C.3.2.2 AC tests
C.3.2.3 DC tests
84 Annex D Vacant
85 Annex E (informative) Items subject to agreement between manufacturer and user
86 Annex F (normative) Class II control circuit devices Requirements and tests
F.1 General
F.3 Terms and definitions
87 F.6 Product information
F.6.2 Marking
F.8 Constructional and functional requirements
F.8.1 Constructional requirements
F.8.1.1 General
88 F.8.1.2 Materials
F.8.1.2.1 Choice of compound
F.8.1.2.2 Adhesion of the compound
F.8.1.4 Clearances and creepage distances
89 F.8.2 Performance requirements
F.8.2.3 Dielectric properties
F.9 Tests
F.9.1 Kind of tests
F.9.1.1 General
F.9.1.2 Type test
F.9.1.2.1 Test sequence
F.9.1.2.2 Dielectric tests in new conditions
F.9.1.2.3 Cable tests (if applicable)
F.9.1.2.4 Rapid change of temperature test
90 F.9.1.2.5 Impact test
F.9.1.2.6 Damp heat
F.9.1.2.6.1 Cyclic damp heat for Class II achieved by encapsulation
F.9.1.2.6.2 Damp heat for Class II achieved by double insulation and/or reinforced insulation
91 F.9.1.2.7 Dielectric test after stresses
92 Annex G (normative) Additional requirements for control circuit devices with integrally connected cables
G.1 General
G.3 Terms and definitions
G.8 Constructional and performance requirements
G.8.1 Constructional requirements
G.8.1.1 Cable material
G.8.1.2 Cable anchorage
93 G.8.1.3 Cable entrance sealing means
G.8.2 Performance requirements
G.9 Tests
G.9.1 Kind of tests
G.9.1.1 General
G.9.1.2 Type tests
G.9.1.2.1 General
G.9.1.2.2 Pull-out test
96 G.9.1.2.3 Torque test
G.9.1.2.4 Push test
G.9.1.2.5 Bend test
G.9.1.2.6 Results to be obtained
97 Annex H (normative) Additional requirements for semiconductor switching elements for control circuit devices
H.1 General
H.3 Terms and definitions
H.4 Classification
H.4.1 Semiconductor switching elements
98 H.5 Characteristics
H.5.3 Rated and limiting values for semiconductor switching elements
H.5.3.1 General
H.5.3.2 Rated voltages
H.5.3.2.1 General
H.5.3.2.2 Rated operational voltage (Ue)
H.5.3.2.3 Rated insulation voltage (Ui)
H.5.3.2.4 Rated impulse withstand voltage (Uimp)
H.5.3.2.5 Operational voltage (UB)
H.5.4 Utilization categories
H.6 Product information
99 H.8 Constructional and performance requirements
H.8.2 Performance requirements
H.8.2.4 Ability to make under abnormal and normal conditions
H.8.2.4.1 Making and breaking capacities
H.8.2.5 Conditional short-circuit current
H.8.2.6 Characteristic values
H.8.2.6.1 Voltage drop (Ud)
H.8.2.6.2 Minimum operational current (Im)
H.8.2.6.3 OFF-state current (Ir)
H.8.3 Electromagnetic compatibility (EMC)
H.9 Tests
H.9.1.2 Type tests
100 H.9.3 Performance
H.9.3.3 Performance under no-load, normal load and abnormal load conditions
H.9.3.3.5 Making and breaking capacities
H.9.3.3.6 Verification of characteristic values
H.9.3.3.6.1 Voltage drop (Ud)
H.9.3.3.6.2 Minimum operational current (Im)
101 H.9.3.3.6.3 OFF-state current (Ir)
H.9.3.4 Performance under short-circuit current conditions
H.9.3.4.1 Test circuit and test procedure
H.9.3.4.2 Condition of the switching element after the test
102 H.9.4 Verification of electromagnetic compatibility
H.9.4.1 General
H.9.4.2 Immunity
H.9.4.2.4 Surges
H.9.4.3 Emission
103 Annex J (normative) Special requirements for indicator lights, indicating towers and audible signalling devices
J.1 General
J.3 Terms and definitions
104 J.4 Classification
J.5 Characteristics
J.5.1 Rated operational voltage of an indicator light
J.5.2 Rated thermal power of an indicator light
J.5.3 Rated values of the lamp
J.5.4 rated voltage for the audible function
105 J.6 Product information
J.7 Normal service, mounting and transport conditions
J.8 Constructional and performance requirements
J.8.1.13 Indicator lights with built-in transformers
106 J.8.2.1.2 Limits of operation
J.8.2.5.1 Short-circuit durability of built-in transformer
J.9 Tests
J.9.3 Tests for indicator lights and indicating towers
J.9.3.3.3 Temperature-rise tests
107 J.9.3.3.4 Dielectric tests
J.9.3.3.4.3 Indicator lights with built-in transformers
J.9.3.4 Short-circuit test (on built-in transformers, if any)
108 J.9.4 Shock and vibration
J.9.4.1 General
J.9.4.2 Direct mounting
J.9.4.2.1 General
J.9.4.2.2 Shock
J.9.4.2.3 Vibration
J.9.4.3 Indirect support mounting
J.9.4.4 Results to be obtained
J.9.5 Degree of protection for indicating towers
109 Annex K (normative) Special requirements for control switches with direct opening action
K.1 General
K.3 Terms and definitions
K.4 Classification
110 K.5 Characteristics
K.5.3.2.3 Rated insulation voltage
K.5.3.3.2 Conventional free air thermal current
K.5.4 Utilization categories for switching elements
K.6 Product information
K.6.2 Marking
K.6.2.7 Direct opening action
K.6.2.8 Electrical separation for change-over contact elements
K.6.5 Additional information
K.6.5.1 Actuator travel and operating force
111 K.6.5.2 Short-circuit protection
K.7 Normal service, mounting and transport conditions
K.7.1.1 Ambient air temperature
K.8 Constructional and performance requirements
K.8.1 Constructional requirements
K.8.1.5 Actuator
K.8.1.5.6 Robustness of the actuating system
K.8.1.5.7 Actuator travel indication
K.8.1.9 Requirements for the opening action
K.8.1.9.1 Directness of opening action
K.8.1.9.2 Automatic opening of cable operated control switches
K.8.1.9.3 Conditions for direct opening action (see 3.6.10 of IEC 60947-1:—)
112 K.8.1.9.4 Contact element types
K.9 Tests
K.9.3 Performance
K.9.3.1 Test sequences
K.9.3.4 Performance under conditional short-circuit current
K.9.3.4.2 Verification of conditional short-circuit current
K.9.3.4.4 Condition of the switching element after the test
K.9.3.4.4.1 Operation ability after the test
K.9.3.5 Verification of mechanical operation of position switches at limits of temperature
113 K.9.3.6 Verification of direct opening action
K.9.3.7 Verification of robustness of the actuating system
115 Annex L (normative) Special requirements for mechanically linked contact elements
L.1 General
L.3 Terms and definitions
L.4 Classification
L.5 Characteristics
116 L.6 Product information
L.6.2.7 Mechanically linked contact elements identification and marking
L.7 Normal service, mounting and transport conditions
L.8 Constructional and performance requirements
L.8.1.9 Requirements for mechanically linked contact elements
117 L.9 Tests
L. 9.5 Special test for mechanically linked contact elements
118 Annex M (normative) Terminal marking, distinctive number and distinctive letter for control circuit devices
M.1 General
M.2 Terminal marking rule
M.2.1 General
M.2.2 Function digit
M.2.3 Sequence digit
119 M.2.4 Numbering method
M.3 Distinctive number and distinctive letter
M.3.1 General
M.3.2 Distinctive number
M.3.3 Distinctive letter
M.4 Terminal numbering sequence
120 M.5 Contactor relays designated by the distinctive letter E
122 M.6 Contactor relays designated by distinctive letters X, Y or Z
M.6.1 Contactor relays designated by the distinctive letter Z
M.6.2 Contactor relays designated by the distinctive letter X
M.6.3 Contactor relays designated by the distinctive letter Y
123 Annex N (normative) Procedure to determine reliability data for electromechanical devices in control circuits used in functional safety applications
N.1 General
N.1.1 Overview
N.1.2 Object
N.1.3 General requirements
N.2 Terms, definitions and symbols
N.3 Method based on durability test results
N.3.1 General method
N.3.2 Test requirements
N.3.2.1 General
N.3.2.2 Mechanical durability
124 N.3.2.3 Electrical durability
N.3.3 Number of samples
N.3.4 Characterization of a failure mode
N.3.5 Weibull modelling
N.3.6 Useful life and upper limit of failure rate
N.3.7 Reliability data
N.4 Data information
N.5 Example
125 Annex O (normative) Additional requirements for control circuit devices incorporating a built-in communication interface complying with IEC 61131-9
O.1 General
O.2 Normative references
O.3 Terms and definitions
O.3.1 General
O.3.2 Terms and definitions concerning digital communication interface
O.3.3 Symbols and abbreviated terms
O.5 Characteristics
126 O.6 Product information
O.8 Constructional and performance requirements
O.8.1 Constructional requirements
O.8.3 Electromagnetic compatibility (EMC)
O.9 Tests
O.9.1 Kinds of tests
O.9.1.2 Type tests
127 Bibliography
BSI 19/30404713 DC
$24.66