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BS EN IEC 60947-6-2:2023

BS EN IEC 60947-6-2:2023

$215.11

Low-voltage switchgear and controlgear – Multiple function equipment. Control and protective switching devices (or equipment) (CPS)

Published By Publication Date Number of Pages
BSI 2023 118
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Applies to control and protective switching devices (or equipment) (CPS), the main contacts of which are intended to be connected to circuits of rated voltage not exceeding 1 000 V a.c. or 1 500 V d.c. CPSs are intended to provide both protective and control functions for circuits and are operated otherwise than by hand. They may also fulfil additional functions, such as isolation.

PDF Catalog

PDF Pages PDF Title
2 undefined
6 Annex ZA (normative)Normative references to international publicationswith their corresponding European publications
8 Blank Page
9 English
CONTENTS
14 FOREWORD
17 1 Scope
2 Normative references
18 3 Terms and definitions
3.1 General
19 3.2 Terms and definitions related to the equipment
20 3.3 Terms and definitions concerning characteristic quantities
21 3.4 Terms and definitions concerning safety aspects
22 4 Classification
5 Characteristics
5.1 Summary of characteristics
5.2 Type of equipment
5.2.1 Number of poles
5.2.2 Kind of current (alternating current or direct current)
5.2.3 Method of operation
23 5.2.4 Method of control
5.2.5 Method of resetting after overload
5.2.6 Method of rearming after short-circuit
5.3 Rated and limiting values of the main circuit
5.3.1 Rated voltages
5.3.2 Currents and powers
5.3.3 Rated frequency
5.3.4 Rated duties
24 5.3.5 Normal load and overload characteristics – Rated making and breaking capacities
5.3.6 Short circuit characteristics – Rated service short-circuit breaking capacity (Ics)
5.3.7 Pole impedance of a CPS (Z)
5.4 Utilization categories
5.4.1 General
25 5.4.2 Assignment of utilization categories based on the results of tests
Tables
Table 1 – Utilization categories
26 5.4.3 Application of utilization categories for motor control duty
5.5 Control circuits
27 5.6 Auxiliary circuits
5.7 Relays or releases
5.7.1 Summary of characteristics
5.7.2 Types of relays or releases
28 5.7.3 Characteristic values
5.7.4 Designation and current setting of overload relays or releases
5.7.5 Time-current characteristics of over current relays or releases
29 5.7.6 Influence of ambient air temperature
6 Product information
6.1 Nature of information
6.1.1 Identification
6.1.2 Characteristics
30 6.2 Marking
31 6.3 Instructions for installation, operation and maintenance
6.4 Environmental information
7 Normal service, mounting and transport conditions
32 8 Constructional and performance requirements
8.1 Constructional requirements
8.1.1 General
8.1.2 Materials
33 8.1.3 Current-carrying parts and their connections
8.1.4 Clearances and creepage distances
8.1.5 Actuator
34 8.1.6 Indication of the contact position
8.1.7 Additional requirements for equipment suitable for isolation
8.1.8 Terminals
8.1.9 Additional requirements for equipment provided with a neutral pole
8.1.10 Provisions for protective earthing
8.1.11 Enclosures for equipment
35 8.1.12 Degrees of protection of enclosed equipment
8.1.13 Conduit pull-out, torque and bending with metallic conduits
8.1.14 Limited energy source
36 Table 20 – Limits for limited energy sources without an over-current protective device
Table 21 – Limits for limited energy sources with an over-current protective device
37 8.1.15 Stored charge energy circuit
8.1.16 Fault and abnormal conditions
Table 22 – Limits for limited energy source with current limiting impedance
38 8.1.17 Short-circuit and overload protection of ports
8.2 Performance requirements
8.2.1 Operating conditions
40 Table 2 – Limits of operation of inverse time-delayoverload relays or releases when energized on all poles
41 Figures
Figure 1 – Multiple of current setting limits for ambient air temperature time-delayoverload relays or releases (see 8.2.1.5.1)
Table 3 – Trip classes of overload relays or releases for utilizationcategories AC-2, AC-3, AC-3e, AC-4, DC-3, DC-5
42 Table 4 – Limits of operation of three-pole inverse time-delay overload relaysor releases when energized on two poles only
43 Figure 2 – Thermal memory test
44 8.2.2 Temperature-rise
Table 5 – Temperature-rise limits of terminals
45 Table 6 – Temperature-rise limits for insulated coils in air
Table 7 – Intermittent duty test cycle data
46 8.2.3 Dielectric properties
8.2.4 Performance under no load, normal load and overload conditions
47 Table 8 – Rated making and breaking capacities – Making and breaking conditions corresponding to the utilization categories
48 Table 9 – Relationship between current broken Ic and OFF-time forthe verification of rated making and breaking capacities
50 Table 10 – Conventional operational performance after making/breaking capacity tests –Making and breaking conditions according to utilization category
51 Table 11 – Operational performance before and after short-circuit tests at Icr and Ics –Making and breaking conditions according to utilization category
52 8.2.5 Ability to make, carry and break short-circuit currents
Table 12 – Value of the prospective test current according tothe rated operational current
53 8.2.6 Pole impedance
8.2.7 Leakage currents of equipment suitable for isolation
8.2.8 Coil power consumption
8.2.9 Co-ordination between a CPS and another short-circuit protective device
8.3 Electromagnetic compatibility (EMC)
8.3.1 General
Table 13 – Value of the prospective test current accordingto the rated operational current (harmonized table)
54 8.3.2 Immunity
8.3.3 Emission
Table 14 – Performance criteria when EM disturbances are present
55 9 Tests
9.1 Kind of tests
9.1.1 General
9.1.2 Type test
9.1.3 Routine tests
9.1.4 Sampling tests
9.1.5 Special tests
56 9.2 Compliance with constructional requirements
9.2.1 General
9.2.2 Electrical performance of screwless-type clamping units
57 9.2.3 Ageing test for screwless-type clamping units
9.2.4 Limited energy source test
Figure 3 – Voltage drop measurement at contact point of the clamping terminal
58 9.2.5 Breakdown of components
9.3 Compliance with performance requirements
9.3.1 Test sequences
59 9.3.2 General test conditions
9.3.3 Performance under no load, normal load and overload conditions
66 Figure 4 – Example of a pole impedance measurement for a three-pole CPS
68 9.3.4 Performance under short-circuit conditions
70 9.4 EMC tests
9.4.1 General
71 9.4.2 Immunity
Table 15 – EMC immunity tests
74 Figure 5 – Representation of test current produced by back-to-back thyristors
75 Figure 6 – Test current for the verification of the influence of the current dips and interruptions
Table 16 – Test parameters for harmonics and interruptions
76 9.4.3 Emission
Table 17 – Terminal disturbance voltage limits for conducted radio-frequency emission (for mains ports)
77 9.5 Test sequences
9.5.1 General
Table 18 – Radiated emission test limits
Table 19 – Test sequences
78 9.5.2 Test sequence I: temperature-rise, operating limits, dielectric properties
82 9.5.3 Test sequence II: performance under normal load and overload conditions
83 9.5.4 Test sequence III: operational performance before and after operating sequences at conventional prospective current Icr and conventional prospective current “r” test
84 9.5.5 Test sequence IV: operational performance before and after operating sequences at Ics
85 9.5.6 Test sequence V: additional breaking capacity
9.5.7 Test sequence VI: additional test sequence for four-pole CPS’s
86 9.5.8 Test sequence VII: additional test sequence for CPS’s intended for use inan individual enclosure
9.5.9 Test sequence VIII: EMC
9.6 Routine tests
9.6.1 General
87 9.6.2 Operation and operating limits
9.6.3 Dielectric tests
88 Annexes
Annex A (normative)Special tests
A.1 General
A.2 Mechanical durability
A.2.1 General
A.2.2 Verification of mechanical durability
90 A.3 Electrical durability
91 Annex B (xxx)Vacant
92 Annex C (normative)Marking and identification of CPS terminals
C.1 General
C.2 Marking and identification of terminals of main circuits
C.2.1 General
C.2.2 Marking and identification of terminals of auxiliary circuits
93 Annex D (informative)Items subject to agreement between manufacturer and user
94 Annex E (xxx)Vacant
95 Annex F (normative)Requirements for auxiliary contact linked with power contact (mirror contact)
F.1 Application and object
F.1.1 Application
F.1.2 Object
F.2 Terms and definitions
F.3 Characteristics
F.4 Product information
96 F.5 Normal service, mounting and transport conditions
F.6 Constructional and performance requirements
F.7 Tests
F.7.1 General
F.7.2 Tests on products in a new condition
Figure F.1 – Mirror contact
97 F.7.3 Test after conventional operational performance (defined under Table 10)
Table F.1 – Test voltage according to altitude
98 Annex G (normative)Test sequence for CPS’s for IT systems
G.1 General
G.2 Individual pole short circuit
Table G.1 – Individual pole
99 G.3 Verification of dielectric withstand
G.4 Verification of overload releases
G.5 Marking
100 Annex H (xxx)Vacant
101 Annex I (informative)Glossary of symbols and graphical representation of characteristics
102 Annex J (xxx)Vacant
103 Annex K (normative)Procedure to determine data for electromechanical CPSused in functional safety applications
K.1 General
K.2 Test requirements
K.3 Characterization of a failure mode
K.4 Failure ratios of a CPS
Table K.1 – Failure mode of CPS
104 Table K.2 – Typical failure ratios for CPS
105 Annex L (xxx)Vacant
106 Annex M (informative)Load monitoring indicators
M.1 General
M.2 Indicators list
107 Table M.1 – AC monitoring indicators list
108 M.3 Uncertainty
Figure M.1 – Example of quantification of a process change
109 M.4 Tests
M.4.1 Routine tests
M.4.2 Type tests
Table M.2 – Different possibilities authorized for verification of indicators
110 Table M.3 – Reference for verification conditions
Table M.4 – Harmonic levels
111 Annex N (normative)Additional requirements and tests for equipment with protective separation
N.1 General
N.2 Terms and definitions
N.3 Requirements
N.3.1 Test method for implementing protective impedance
112 N.3.2 Touch current measurement
Figure N.1 – Protection by means of protective impedance
113 Figure N.2 – Measuring instrument
114 Bibliography

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BS EN IEC 60947-6-2:2023
$215.11