1、BS 1363-4:2016 13 A plugs, socket-outlets, adaptors and connection units Part 4: Specification for 13 A fused connection units switched and unswitched BSI Standards Publication WB11885_BSI_StandardCovs_2013_AW.indd 1 15/05/2013 15:06Publishing and copyright information The BSI copyright notice displ
2、ayed in this document indicates when the document was last issued. The British Standards Institution 2016 Published by BSI Standards Limited 2016 ISBN 978 0 580 85812 3 ICS 29.120.30 The following BSI references relate to the work on this document: Committee reference PEL/23 Draft for comment 15/302
3、97238 DC Publication history First published November 1995 Second (present) edition, August 2016 Amendments issued since publication Date Text affected BS 1363-4:2016 BRITISH STANDARDContents Foreword iii 1 Scope 1 2 Conditions of use 1 3 Terms and definitions 2 4 General 4 5 General conditions for
4、type testing 4 6 Classification 6 7 Marking and labelling 6 8 Clearances, creepage distances and solid insulation 8 9 Accessibility of live parts 11 10 Provision for earthing 11 11 Terminals 12 12 (Not used) 16 13 Construction of connection units 16 14 Resistance to ageing, resistance to humidity an
5、d protection provided by enclosures 19 15 Insulation resistance and electric strength 23 16 Temperature rise 24 17 Breaking capacity of connection units 26 18 Normal operation of connection units 26 19 Connection of flexible cables and cable anchorage 27 20 Mechanical strength 29 21 Screws, current-
6、carrying parts and connections 30 22 Resistance to heat 31 23 Resistance to abnormal heat and fire 32 24 Resistance to excessive residual stresses and to rusting 33 Annexes Annex A (normative) The construction and calibration of a calibrated link 40 Annex B (normative) Measurement of clearances and
7、creepage distances 41 Annex C (normative) Determination of the Comparative Tracking Index (CTI) and Proof Tracking Index (PTI) 45 Annex D (normative) Relation between rated impulse withstand voltage, rated voltage and Overvoltage Category 46 Annex E (normative) Pollution degree 46 Annex F (normative
8、) Impulse voltage test 47 Annex G (informative) Specific structure of BS EN 50525 and its derivation from British Standards and from HD 21 and HD 22 (BS EN 50525-1:2011, National Annex NA) 48 Bibliography 50 List of figures Figure 19 Solid link for test on fuse clips (see Clause 20) 34 Figure 21a) P
9、endulum impact test: General view of apparatus (see Clause 20) 34 Figure 21b) Pendulum impact test: Constructional details of striking elements (see Clause 20) 35 Figure 21c) Pendulum impact test: Constructional details of mounting support for test samples (see Clause 20) 36 Figure 28 Calibrated lin
10、k (see A.1) 37 Figure 29 Calibration jig for calibrated link (see A.2) 38 Example 1 42 Example 2 42 Example 3 42 Example 4 42 Example 5 43 Example 6 43 BRITISH STANDARD BS 1363-4:2016 The British Standards Institution 2016 iExample 7 43 Example 8 43 Example 9 44 Example 10 44 Example 11 45 List of t
11、ables Table 1 Schedule of tests 5 Table 2 Minimum clearances for basic insulation 9 Table 3 Minimum creepage distances (mm) for basic insulation 10 Table 4 Withstand voltages for insulation types 11 T a b l e5T orque values for screws and nuts 12 Table 6 Actuator test force 19 T a b l e7T ightening
12、torque values for cable glands 21 T a b l e8T e s tvoltage across the open contacts for verifying the suitability for isolation, referred to the rated voltage and to the altitude where the test is carried out 24 Table 9 Permitted temperature rises 25 Table 10 Cable grip tests related to size of flex
13、ible cable 28 Table 11 Application of glow-wire test 32 Table B.1 Minimum values of widthX4 1 Table D.1 Rated impulse withstand voltage for connection units energized directly from the low voltage mains 46 Table F.1 Test voltages for verifying clearances at sea level 47 Table G.1 Specific structure
14、of BS EN 50525 and its derivation from British Standards and from HD 21 and HD 22 (BS EN 50525-1:2011, National Annex NA) 48 Summary of pages This document comprises a front cover, an inside front cover, pages i to iv, pages 1 to 52, an inside back cover and a back cover. BRITISH STANDARD BS 1363-4:
15、2016 ii The British Standards Institution 2016Foreword Publishing information This part of BS 1363 is published by BSI Standards Limited, under licence from The British Standards Institution, and came into effect on 31 August 2016. It was prepared by Technical Committee PEL/23, Electrical accessorie
16、s. A list of organizations represented on this committee can be obtained on request to its secretary. Supersession This part of BS 1363 supersedes BS 1363-4:1995+A4:2012, which remains current and will be withdrawn on 31 August 2019. Information about this document BS 1363 comprises five parts cover
17、ing the following: Part 1: Specification for rewirable and non-rewirable 13 A fused plugs; Part 2: Specification for 13 A switched and unswitched socket-outlets; Part 3: Specification for adaptors; Part 4: Specification for 13 A fused connection units switched and unswitched; Part 5: Specification f
18、or fused conversion plugs. NOTE In order to prevent confusion with BS 1363:1984, the figure and clause numbers have been retained. The structure of BS EN 50525 and its derivation from British Standards and HD 21 and HD 22 is set out in BS EN 50525-1:2011, National Annex NA. This is reproduced in Ann
19、ex G for the convenience of users of this part of BS 1363. This new edition of BS 1363-4 incorporates technical changes only. It does not represent a full review or revision of the standard, which will be undertaken in due course. Presentational conventions The provisions of this standard are presen
20、ted in roman (i.e. upright) type. Its requirements are expressed in sentences in which the principal auxiliary verb is “shall”. Commentary, explanation and general informative material is presented in smaller italic type, and does not constitute a normative element. Requirements in this standard are
21、 drafted in accordance with Rules for the structure and drafting of UK standards, subclause J.1.1, which states, “Requirements should be expressed using wording such as: When tested as described in Annex A, the product shall .”. This means that only those products that are capable of passing the spe
22、cified test will be deemed to conform to this standard. Contractual and legal considerations This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. Conformity with a British Standard cannot confer immunity from lega
23、l obligations. Particular attention is drawn to the following specific regulations: The Plugs and Sockets etc. (Safety) Regulations 1994. SI No. 1768. BRITISH STANDARD BS 1363-4:2016 The British Standards Institution 2016 iiiBRITISH STANDARD BS 1363-4:2016 This page deliberately left blank iv The Br
24、itish Standards Institution 20161 Scope This part of BS 1363 specifies requirements for 13 A fused fixed connection units for household, commercial and light industrial purposes, with particular reference to safety in normal use. The connection units are suitable for the connection of appliances, in
25、 a.c. circuits only, operating at voltages not exceeding 250 V r.m.s. at 50 Hz. Requirements are specified for connection units incorporating a fuse-link conforming to BS 1362:1973. Requirements are specified for 13 A connection units with or without associated controlling switches, for flush mounti
26、ng in suitable enclosures, e.g. boxes conforming to BS 4662:2006+A1:2009, or for surface or panel mounting. Connection units are intended for use with cables conforming to BS 6004:2012 having copper conductors. Connection units with cable outlets are additionally intended for use with flexible cable
27、s, conforming to the relevant part of BS EN 50525 (see Annex G), on the load (output) side. This standard does not apply to connection units incorporating screwless terminals for the connection of external conductors of the following types: flat quick-connect terminals; insulation-piercing connectin
28、g devices; and twist-on connecting devices. NOTE 1 The titles of the publications referred to in this part of BS 1363 are listed in the bibliography. NOTE 2 Requirements for electromagnetic compatibility are not given for the following reason. A connection unit is mechanical by nature of constructio
29、n. A connection unit does not emit intolerable electromagnetic interference and the product is immune from electromagnetic interference. 2 Conditions of use Fused connection units shall be suitable for use under the following conditions: a) an ambient temperature in the range 5 C to +40 C, the avera
30、ge value over 24 h not exceeding 25 C; NOTE Under normal conditions of use, the available cooling air is subject to natural atmospheric variations of temperature and hence the peak temperature occurs only occasionally during the hot season, and on those days when it does occur it does not persist fo
31、r lengthy periods. b) a situation not subject to exposure to direct radiation from the sun or other source of heat likely to raise temperatures above the limits specified in a); c) an altitude not exceeding 2 000 m above sea level; d) an atmosphere not subject to abnormal pollution by smoke, chemica
32、l fumes or other abnormal conditions. This is equivalent to pollution degree 2 (see Annex E) and Overvoltage Categroy III (see Annex D). BRITISH STANDARD BS 1363-4:2016 The British Standards Institution 2016 13 Terms and definitions For the purposes of this British Standard the following terms and d
33、efinitions apply. NOTE Where the terms “voltage” and “current” are used, they imply r.m.s. values, unless otherwise stated. 3.1 fused connection unit a device associated with the fixed wiring of an installation by which equipment may be connected, and having provision for a replaceable cartridge fus
34、e-link NOTE The device may include its dedicated enclosure. 3.2 cable outlet connection unit a fixed wiring device as in 3.1 having provision for a flexible cable 3.3 switched connection unit a fused connection unit as in 3.1 or 3.2, with an associated switch to disconnect the supply to both line an
35、d neutral load terminals 3.4 surface-mounted connection unit a fused connection unit as in 3.1, 3.2 or 3.3, which is intended to be mounted on a wall or other flat surface without the need for recessing 3.5 flush-mounted connection unit a fused connection unit as in 3.1, 3.2 or 3.3, which is intende
36、d to be mounted in a box which is recessed into a wall or other flat surface NOTE The fused connection unit plate and the base are regarded as forming a complete unit, and the connection unit plate is mounted with its back either flush with a wall or other flat-surfaced structure, or flush with the
37、front of a box or enclosure. 3.6 panel-mounted connection unit a fused connection unit intended for incorporation into equipment panels or electrical trunking and which depends upon such incorporation for its enclosure 3.7 connection unit base that part of the fused connection unit which carries liv
38、e parts. It may be integral with the fused connection unit plate 3.8 connection unit plate the external plate which covers the base and live parts of a fused connection unit 3.9 actuating member that part which is moved, e.g. pulled, pushed or turned by the user, to operate the switch mechanism 3.10
39、 indicator lamp (pilot lamp) a lamp or similar device which illuminates to indicate that the connection unit load terminals are energized 3.11 terminal a means by which the user can make an electrical connection between the appropriate cable or flexible cable and the conducting parts of the connecti
40、on unit without the use of special tools BRITISH STANDARD BS 1363-4:2016 2 The British Standards Institution 20163.12 screw-type terminals a terminal in which the connection is made directly by means of screws or nuts of any kind or indirectly through an intermediate metal part such as a washer, cla
41、mping plate or anti spread device on which the screw or nut bears directly NOTE The following are examples of screw-type terminals. a) A pillar terminal is a terminal in which the conductor is inserted into a hole or cavity, where it is clamped under the shank of the screw or screws. b) A screw term
42、inal is a terminal in which the conductor is clamped under the head of the screw. c) A stud terminal is a terminal in which the conductor is clamped under a nut. 3.13 clamp type (screwless) terminal a terminal for the connection and subsequent disconnection of one or more conductor(s), the connectio
43、n being made directly or indirectly by means of springs, wedges or the like 3.14 fuse carrier a moveable or removable part designed to carry, retain, cover and/or remove the fuse-link 3.15 type test a test or series of tests made on a type test sample, for the purpose of checking conformity to the d
44、esign of a given product with the requirements of the relevant standard 3.16 type test sample a sample consisting of one or more similar units or specimens submitted by the manufacturer or responsible vendor for the purpose of a type test 3.17 accessible external surface of a connection unit all sur
45、faces of a fused connection unit which can be touched by test probe B of BS EN 61032:1998 connection unit is installed as in use 3.18 live parts current-carrying parts and those metal parts in contact with them during normal use NOTE Metal parts of the earthing circuit are not considered to be curre
46、nt-carrying parts. 3.19 fine wire thermocouple a thermocouple having wires not exceeding 0.3 mm in diameter 3.20 calibrated link a calibrated heat source for use in place of a fuse-link during temperature rise tests 3.21 creepage distance the shortest distance along the surface of the insulating mat
47、erial between two conductive parts 3.22 clearance shortest distance in air between two conductive parts 3.23 basic insulation insulation applied to live parts to provide basic protection against electric shock BRITISH STANDARD BS 1363-4:2016 The British Standards Institution 2016 3NOTE Basic insulat
48、ion does not necessarily include insulation used exclusively for functional purposes. 3.24 supplementary insulation independent insulation applied in addition to basic insulation, in order to provide protection against electric shock in the event of failure of basic insulation 3.25 reinforced insula
49、tion a single insulation system applied to live parts, which provides a degree of protection against electric shock equivalent to double insulation under the conditions specified in the relevant standard 3.26 functional insulation insulation between conductive parts which is necessary only for the proper functioning of the equipment 3.27 isolation function intended to make dead for reasons of safety all or a discrete section of the electrical installation by separating the electrical installation or secti
