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BSI 24/30445524 DC 2024

BSI 24/30445524 DC 2024

$13.70

BS EN IEC 63418 Fixed accessories intended for household and similar purposes that supply power through an interface

Published By Publication Date Number of Pages
BSI 2024 94
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PDF Catalog

PDF Pages PDF Title
9 CONTENTS
Fixed accessories intended for household and similar purposes that supply power through an interface
1 Scope
2 Normative references
11 3 Terms and definitions
15 4 General requirements
5 General remarks on tests
5.1 General
16 5.2 Products arrangement during test
5.3 Ambient test condition
5.4 Additional samples
5.5 Routine tests
6 Ratings
6.1 Rated input voltage
17 6.2 USB output ratings
7 Classification
7.1.1 Accessories are classified according to the degree of protection against access to hazardous parts and against harmful effects due to the ingress of solid foreign objects as described in IEC 60529.
7.1.2 Accessories are classified according to the degree of protection against harmful effects due to the ingress of water as described in IEC 60529.
7.1.3 Classification according to the provision for earthing:
7.1.3.1 Accessories without earthing;
7.1.3.2 Accessories with earthing.
7.1.4 Classification according to the connection means:
7.1.4.1 with screw type terminals;
7.1.4.2 with screwless-type terminals;
7.1.4.3 with insulation piercing terminals (IPT);
7.1.4.4 with connecting leads.
7.1.5 Classification according to the method of application/mounting of the accessory:
7.1.5.1 surface, or
7.1.5.2 flush, or
7.1.5.3 semi flush.
7.1.6 Classification according to the method of installation:
7.1.6.1 accessories where the cover or cover-plate can be removed without displacement of the conductors (design A), or
7.1.6.2 accessories where the cover or cover-plate cannot be removed without displacement of the conductors (design B).
18 7.1.7 according to the connection capacities of the terminals:
7.1.7.1 accessories with a connection capacity up and including 1,5 mm²;
7.1.7.2 accessories with a connection capacity up and including 2,5 mm².
7.1.8 according to the provision of loop terminals:
7.1.8.1 accessories with loop terminals;
7.1.8.2 accessories without loop terminals.
7.1.9 according to the nature of supply:
7.1.9.1 accessories powered by AC;
7.1.9.2 accessories powered by DC.
7.1.10 according to the function of the incorporated switch:
7.1.10.1 with switch for maintenance of electric installation;
7.1.10.2 with switch for switching the power supply in normal use.
8 Marking
22 9 Checking of dimensions
9.1 General
10 Protection against electric shock
23 10.3.1 For accessories powered by circuits other than SELV circuits, accessible parts of the accessory when wired and/or mounted as in normal use shall be made of insulating material with the exception of the following:
10.3.2 For accessories powered by circuits other than SELV circuits, covers, cover plates or other parts of the enclosure of metal shall be protected by additional insulation made by insulating linings or insulating barriers. The insulating linings or…
24 11 Provision for earthing
12 Terminals and terminations
12.1 General
25 12.2 Terminals with screw clamping for external copper conductors
12.2.1 Accessories shall be provided with terminals which shall allow the proper connection of copper conductors having nominal cross-sectional areas as shown in Table 2.
27 12.2.2 Terminals with screw clamping shall allow the conductor to be connected without special preparation.
28 12.2.3 Terminals with screw clamping shall have adequate mechanical strength.
12.2.4 Terminals with screw clamping shall be resistant to corrosion.
12.2.5 Terminals with screw clamping shall be so designed and constructed that they clamp the conductor(s) without undue damage to the conductor(s).
29 12.2.6 Terminals with screw clamping shall be so designed that they clamp the conductor reliably between metal surfaces.
12.2.7 Terminals with screw clamping shall be so designed or placed that neither a rigid solid conductor nor a wire of a stranded conductor can slip out while the clamping screws or nuts are tightened.
30 12.2.8 Terminals with screw clamping shall be so fixed or located within the accessory that, when the clamping screws or nuts are tightened or loosened, the terminals shall not work loose from their fixing to accessories.
31 12.2.9 Clamping screws or nuts of earthing terminals with screw clamping shall be adequately locked against accidental loosening and it shall not be possible to loosen them without the aid of a tool.
12.2.10 Earthing terminals with screw clamping shall be such that there is no risk of corrosion resulting from contact between these parts and the copper of the earthing conductor, or any other metal that is in contact with these parts.
12.2.11 For pillar terminals, the distance between the clamping screw and the end of the conductor, when fully inserted, shall be at least that specified in Figure 5.
32 12.3 Screwless-type terminals for external copper conductors
12.3.1 Screwless-type terminals may be of the type suitable for rigid copper conductors only or of the type suitable for both rigid and flexible copper conductors.
12.3.2 Screwless-type terminals shall be provided with two clamping units each allowing the proper connection of rigid or of rigid and flexible copper conductors having nominal cross-sectional areas as shown in Table 2.
12.3.3 Screwless-type terminals shall allow the conductor to be connected without special preparation.
12.3.4 Parts of screwless-type terminals mainly intended to carry current shall be of materials as specified in 19.5.
12.3.5 Screwless-type terminals shall be so designed that they clamp the specified conductors with sufficient contact pressure and without undue damage to the conductor.
12.3.6 It shall be clear how the connection and disconnection of the conductors is to be made.
12.3.7 Screwless-type terminals which are intended to be used for the interconnection of two or more conductors shall be so designed that
33 12.3.8 Screwless-type terminals shall be designed so that adequate insertion of the conductor is obvious and over-insertion is prevented if further insertion is liable to reduce the creepage distances and/or clearances required in Table 17, or to infl…
12.3.9 Screwless-type terminals shall be properly fixed to the accessory.
12.3.10 Screwless-type terminals shall withstand the mechanical stresses occurring in normal use.
34 12.3.11 Screwless-type terminals shall withstand the electrical and thermal stresses occurring in normal use.
35 12.3.12 Screwless-type terminals shall be so designed that the connected rigid solid conductor remains clamped, even when it has been deflected during normal installation, for example, during mounting in a box, and the deflecting stress is transferred…
37 12.4 Insulation piercing terminals (IPT)
13 Construction of accessories
13.1 Insulating linings, barriers and the like
13.2 Connection of conductors
41 13.3 Protection against electric shock provided by covers, cover-plates
13.3.1 For covers or cover-plates whose fixings are of the screw-type:
13.3.2 For covers or cover-plates of accessories powered by circuits other than SELV circuits whose fixing is not dependent on screws and whose removal is obtained by applying a force in a direction approximately perpendicular to the mounting/supporti…
42 13.3.3 For covers or cover-plates the fixing of which is not dependent on screws and whose removal is obtained by using a tool, in accordance with the manufacturer’s instructions given in an instruction sheet or in other documentation:
13.4 Openings in normal use
13.5 Means for mounting the accessory
13.6 Mounting plate of surface-type accessories
13.7 Surface-type accessories having an IP code higher than IP20
43 13.8 Metal strips of the earthing circuit
13.9 Installation in boxes
13.10 Inlet openings
44 13.11 Fixing of membranes (grommets)
13.12 Material for membranes
13.13 Conductors used in accessories
45 13.14 Switches used in accessories
13.15 Capacitors bridging insulation between primary and secondary circuits of the accessory
46 13.16 Applicable clauses of IEC 62368-1:2023
13.17  Applicable clauses of IEC 62368-3:2017
14 Resistance to ageing, protection provided by enclosures, and resistance to humidity
14.1 Resistance to ageing
47 14.2 Protection provided by enclosures
14.2.1 General
14.2.2 Protection against access to hazardous parts and against harmful effects due to ingress of solid foreign objects
14.2.2.1 General
48 14.2.2.2 Protection against access to hazardous parts
14.2.2.3 Protection against harmful effects due to ingress of solid foreign objects
14.2.3 Protection against harmful effects due to ingress of water
51 14.3 Resistance to humidity
15 Insulation resistance and electric strength
15.1 General
52 15.2 Test for measuring the insulation resistance
15.3  Electric strength test
53 16 Temperature rise
16.1 General
16.2 Temperature rise test
55 16.3 Temperature rise test of terminals for accessories with loop terminals 
16.4 Looping through function
56 17 Mechanical strength
17.1 General
17.2 Impact test with pendulum hammer
60 17.3 Test for accessories with a main part intended to be mounted directly on a surface
17.4 Torque test for glands
61 17.5 Tests on covers, cover-plates or parts of them according to 13.3.2 a)
17.5.1 When checking the forces necessary to retain or remove covers, cover-plates or parts of them, the accessories are mounted as for normal use.
17.5.2 Verification of the retention of covers or cover-plates is carried out as follows.
17.5.3 Verification of the removal of covers or cover-plates is carried out as follows.
62 17.6 Tests on covers, cover-plates or parts of them according to 13.3.2 b)
17.7 Tests on covers, cover-plates or parts of them according to 13.3.2 c)
17.8 Verification of the outline of covers fixed without screws on a mounting surface or supporting surface
65 17.9 Verification of grooves, holes and reverse tapers
66 17.10 Mechanical tests of USB ports
17.10.1 General
17.10.2 USB port lateral strain test
67 17.10.3 Resistance to mechanical force on a USB port during insertion
17.10.4 Impact test
18 Resistance to heat
18.1 General
18.2 Basic heating test
68 18.3 Ball-pressure test at 125 C
18.4 Ball-pressure test at 70 C or higher
69 19 Screws, current-carrying parts and connections
19.1 General
19.2 Correct insertion of screws
19.3 Contact pressure of electrical connections
70 19.4 Screws and rivets used both as electrical and mechanical connections
19.5 Material of current-carrying parts
19.6 Contacts subjected to sliding actions
71 19.7 Thread-forming and thread-cutting screws
20 Creepage distances, clearances and distances through sealing compound
20.1 General
73 20.2 Insulating sealing compound
21 Resistance of insulating material to abnormal heat, to fire and to tracking
21.1 Resistance to abnormal heat and to fire
21.1.1 General
21.1.2 Glow-wire test
75 21.1.3 Resistance to tracking
22 Resistance to rusting
23 EMC requirements
23.1 General
76 23.2 Immunity
23.2.1 General
23.2.2 Voltage dips and short interruptions
77 23.2.3 Surge immunity test for 1,2/50 wave impulses
23.2.4 Electrical fast transient/burst test
23.2.5 Electrostatic discharge test
78 23.2.6 Radiated electromagnetic field test
23.2.7 Radio-frequency voltage test
23.2.8 Power-frequency magnetic field test
79 23.3 Emission
23.3.1 General
23.3.2 Low-frequency emission
23.3.3 Radio-frequency emission
23 Electromagnetic fields (EMF) requirements
24 Abnormal conditions
25.1 General
25.2 Temperature rise under abnormal conditions
25.2.1 Overview
25.2.2 General
25.2.2.1 Overview
25.2.2.2 Fault conditions tests
81 25.2.2.3 Overload tests
25.3 Protection against electric shock after fault conditions arise
25.4 Short circuit in the looping through circuit
83 Annex A (informative) Safety-related routine tests for electric strength test control – Electric strength test of the accessory
85 Annex B (informative) Guidance for the measurement of the working voltage between Primary and Secondary of Transformer
86 Annex C (normative) Additional requirements for accessories provided with insulation-piercing terminals
3 Terms and definitions
7 Classification
7.1.10 IPT classification according to the method of making the connection
8 Marking
8.1 General
8.2 Symbols
8.3 Visibility of markings
8.9 Manufacturer’s documentation for IPTs
87 12 Terminals and terminations
12.4 Insulation piercing terminals (IPT)
93 Bibliography

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