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1、BRITISH STANDARD BS EN 60999:1993 Incorporated Amendment No. 1 Connecting devices Safety requirements for screw-type and screwless-type clamping units for electrical copper conductors The European Standard EN 60999:1993 has the status of a British Standard UDC 621.315.684:621.315.55-034.3 Licensed C
2、opy: sheffieldun sheffieldun, na, Fri Nov 10 07:42:02 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS EN 60999:1993 This British Standard, having been prepared under the direction of the Power Electrical Engineering Standards Policy Committee, was published under the authority of the Standards Board a
3、nd comes into effect on 15 December 1993 BSI 02-1999 The following BSI references relate to the work on this standard: Committee reference PEL/4 Draft for comment 87/26011 DC ISBN 0 580 22642 5 Cooperating organizations The European Committee for Electrotechnical Standardization (CENELEC), under who
4、se supervision this European Standard was prepared, comprises the national committees of the following countries: AustriaItaly BelgiumLuxembourg DenmarkNetherlands FinlandNorway FrancePortugal GermanySpain GreeceSweden IcelandSwitzerland IrelandUnited Kingdom Amendments issued since publication Amd.
5、 No.DateComments Licensed Copy: sheffieldun sheffieldun, na, Fri Nov 10 07:42:02 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS EN 60999:1993 BSI 02-1999i Contents Page Cooperating organizationsInside front cover National forewordii Foreword2 Text of EN 609993 National annex NA (informative) Original
6、 IEC text amended by CENELEC common modifications19 National annex NB (informative) Committees responsibleInside back cover National annex NC (informative) Cross-referenceInside back cover Licensed Copy: sheffieldun sheffieldun, na, Fri Nov 10 07:42:02 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS E
7、N 60999:1993 ii BSI 02-1999 National foreword This British Standard has been prepared under the direction of the Power Electrical Engineering Standards Policy Committee and is the English language version of EN 60999:1993 Connecting devices. Safety requirements for screw-type and screwless-type clam
8、ping units for electrical copper conductors, published by the European Committee for Electrotechnical Standardization (CENELEC). It was derived by CENELEC from IEC 999:1990 published by the International Electrotechnical Commission (IEC). The CENELEC common modifications have been implemented at the
9、 appropriate places in the text and are indicated by a side line in the margin. Parts of the original IEC text that have been modified by CENELEC have been quoted in National annex NA. A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standar
10、ds are responsible for their correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. Summary of pages This document comprises a front cover, an inside front cover, pages i and ii, the EN title page, pages 2 to 22, an inside back cover and a
11、back cover. This standard has been updated (see copyright date) and may have had amendments incorporated. This will be indicated in the amendment table on the inside front cover. Licensed Copy: sheffieldun sheffieldun, na, Fri Nov 10 07:42:02 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EUROPEAN STAND
12、ARD NORME EUROPENNE EUROPISCHE NORM EN 60999 August 1993 UDC 621.315.684:621.315.55-034.3 Descriptors: Low voltage equipment, home electrical installations, connecting equipment, screwless type clamping units, screw-type clamping units, characteristics, tests English version Connecting devices Safet
13、y requirements for screw-type and screwless-type clamping units for electrical copper conductors (IEC 999:1990, modified) Dispositifs de connexion Prescriptions de scurit pour organes de serrage vis et sans vis pour conducteurs lectriques en cuivre (CEI 999:1990, modifie) Verbindungsmaterial Sicherh
14、eitsanforderungen fr Schraubklemmstellen und schraublose Klemmstellen fr elektrische Kupferleiter (IEC 999:1990, modifiziert) This European Standard was approved by CENELEC on 9 March 1993. CENELEC members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions f
15、or giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the Central Secretariat or to any CENELEC member. This European Standard exists in three off
16、icial versions (English, French, German). A version in any other language made by translation under the responsibility of a CENELEC member into its own language and notified to the Central Secretariat has the same status as the official versions. CENELEC members are the national electrotechnical com
17、mittees of Austria, Belgium, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. CENELEC European Committee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique E
18、uropisches Komitee fr Elektrotechnische Normung Central Secretariat: rue de Stassart 35, B-1050 Brussels 1993 Copyright reserved to CENELEC members Ref. No. EN 60999:1993 E Licensed Copy: sheffieldun sheffieldun, na, Fri Nov 10 07:42:02 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 60999:1993 BSI 02
19、-1999 2 Foreword The CENELEC questionnaire procedure, performed for finding out whether or not the International Standard IEC 999:1990 could be accepted without textual changes, has shown that some common modifications were necessary for the acceptance as a European Standard. The reference document,
20、 together with the common modifications prepared by the CENELEC Reporting Secretariat SR 23F, was submitted to the CENELEC members for formal vote in August 1992. The text of the draft was approved by CENELEC on 9 March 1993. The following dates were fixed: For products which have complied with the
21、relevant national standard before 1994-03-01 as shown by the manufacturer or by a certification body, this previous standard may continue to apply for production until 1999-03-01. Appendices and CENELEC annexes designated “normative” are part of the body of the standard. In this standard, Appendix B
22、 and Appendix C and Annex ZA are normative. Where reference is made to other international or harmonized standards, the edition of that standard quoted in Annex ZA is applicable. NOTEIn this document, the following print types are used: requirements proper: in roman type; test specifications: in ita
23、lic type; explanatory matter: in smaller roman type. Contents Page Foreword2 1Scope3 2Definitions3 3General4 4General notes on tests4 5Main characteristics4 6Connection of conductors4 7Constructional requirements5 8Tests7 Appendix A Void Appendix B Rated connecting capacity and corresponding gauges1
24、7 Appendix C Construction of stranded conductors18 Appendix D Void Annex ZA (normative) Other international publications quoted in this standard with the references of the relevant European publications18 Figure 1 Test apparatus according to Sub-clause 8.412 Figure 2 Examples of pillar clamping unit
25、s13 Figure 3 Examples of screw and stud clamping units14 Figure 4 Examples of saddle clamping units15 Figure 5 Examples of mantle clamping units15 Figure 6 Examples of screwless-type clamping units16 Table I Rated connecting capacity and connectable conductors4 Table II8 Table III8 Table IV9 Table V
26、 Pillar clamping units10 Table VI Screw and stud clamping units11 Table VII Saddle clamping units11 Table VIII Mantle clamping units11 latest date of publication of an identical national standard(dop) 1994-03-01 latest date of withdrawal of conflicting standards(dow) 1994-03-01 Licensed Copy: sheffi
27、eldun sheffieldun, na, Fri Nov 10 07:42:02 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 60999:1993 BSI 02-19993 1 Scope This standard applies to screw-type and screwless-type clamping units for connecting devices, either as separate entities or as integral parts of equipment, for the connection of
28、electrical copper conductors (complying with HD 383), rigid (solid or stranded) and/or flexible, having a cross-sectional area of 0.5 mm2 up to and including 35 mm2 with a rated voltage not exceeding 1 000 V a.c. with a frequency up to and including 1 000 Hz, and 1 500 V d.c. It applies to clamping
29、units primarily suitable for connecting unprepared conductors. This standard does not apply to clamping units: a) for connection by crimping or soldering; b) for data and signalling circuits; c) for flat quick-connect terminations, insulation-piercing connecting devices and twist-on connecting devic
30、es, for which separate parts are under consideration. d) designed to receive prepared conductors (soldering, eyelet, lug etc.) nor to terminals designed to be assembled together with apparatus being subjected to strong vibrations. 2 Definitions 2.1 Clamping unit denotes the part(s) of the terminal n
31、ecessary for the mechanical clamping and the electrical connection of the conductor(s), including the parts which are necessary to ensure the correct contact pressure. 2.2 Terminal denotes the conductive part of one pole, composed of one or more clamping unit(s) and insulation if necessary. 2.3 Conn
32、ecting device denotes a device for the electrical connection of one (or more) conductor(s), comprising one (or more) terminal(s), either fixed to a base or forming an integral part of the equipment. 2.4 Screw-type clamping unit denotes a clamping unit for the connection and subsequent disconnection
33、of one conductor or the interconnection and subsequent disconnection of two or more conductors, the connection being made, directly or indirectly, by means of screws or nuts of any kind. 2.5 Pillar clamping unit denotes a screw-type clamping unit in which the conductor is inserted into a hole or cav
34、ity, where it is clamped under the shank of a screw or screws. The clamping pressure may be applied directly by the shank of the screw or through an intermediate part to which pressure is applied by the shank of the screw. Examples of pillar clamping units are given in Figure 2. 2.6 Screw clamping u
35、nit denotes a screw-type clamping unit in which the conductor is clamped under the head of a screw. The clamping pressure may be applied directly by the head of the screw or through an intermediate part such as a washer, clamping plate or anti-spread device. Examples of screw clamping units are give
36、n in Figure 3. 2.7 Stud clamping unit denotes a screw-type clamping unit in which the conductor is clamped under a nut. The clamping pressure may be applied directly by a suitably shaped nut or through an intermediate part such as a washer, clamping plate or anti-spread device. Examples of stud clam
37、ping units are given in Figure 3. 2.8 Saddle clamping unit denotes a screw-type clamping unit in which the conductor is clamped under a saddle by means of two or more screws or nuts. Examples of saddle clamping units are given in Figure 4. 2.9 Mantle clamping unit denotes a screw-type clamping unit
38、in which the conductor is clamped against the base of a slot in a threaded stud by means of a nut, by a suitably shaped washer under the nut, by a central peg if the nut is a cap nut, or by an equally effective means for transmitting the pressure from the nut to the conductor within the slot. Exampl
39、es of mantle clamping units are given in Figure 5. 2.10 Screwless-type clamping unit denotes a clamping unit for the connection and subsequent disconnection of one conductor or the interconnection and subsequent disconnection of two or more conductors, the connection being made, directly or indirect
40、ly, by means other than screws. 2.10.1 Universal clamping unit (for all types of conductors). 2.10.2 Non-universal clamping unit (for certain types of conductors only). For example: push-wire clamping unit (for solid conductors only); push-wire clamping unit (for rigid (solid and stranded) conductor
41、s only). Examples of screwless-type clamping units are given in Figure 6. 2.11 Rated connecting capacity denotes the cross-sectional area of the largest rigid conductor that can be connected, as stated by the manufacturer of the clamping unit. Licensed Copy: sheffieldun sheffieldun, na, Fri Nov 10 0
42、7:42:02 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 60999:1993 4 BSI 02-1999 2.12 Ambient temperature denotes the temperature of the air surrounding the clamping unit together with its enclosure, if any. 2.13 Temperature rise denotes the difference between the temperature of the part under test, t
43、ogether with its enclosure, if any, measured under load according to the test specification and the ambient temperature. 2.14 Unprepared conductor denotes a conductor which has been cut and the insulation of which has been removed for insertion into a clamping unit. A conductor the shape of which is
44、 arranged for introduction into a clamping unit or the strands of which are twisted to consolidate the end, is considered to be an unprepared conductor. 2.15 Prepared conductor denotes a conductor the stripped end of which is fitted with an eyelet, a terminal end, a cable lug, etc. 3 General Clampin
45、g units shall be so designed and constructed that, in normal use, their performance is reliable and without danger to the user or the surroundings. Compliance is checked by carrying out all the tests specified. 4 General notes on tests 4.1 Tests according to this standard are intended to be type tes
46、ts. They are carried out as tests of the product standard to be specified by the relevant Technical Committee. 4.2 Unless otherwise specified, the specimens are tested in the condition in which they are delivered and installed as in normal use. Tests are made at an ambient temperature of (20 5) C. 4
47、.3 The tests of Clause 8 are carried out in the order of the sub-clauses. 4.4 Unless otherwise specified, a set consisting of a minimum of three specimens is subjected to all the tests. 4.5 Clamping units are deemed not to comply with this standard if more than one sample fails one of the tests. If
48、one sample fails in a test, that test and the preceding ones which may have influenced the results of that test are repeated on another set of three samples, all of which shall then comply with the repeated tests. 4.6 A supplementary set of three samples, which may be necessary for the repetition of
49、 a test, may be supplied at the same time as the first set. Sub-clauses 4.5 and 4.6 are under revision by Technical Committee No. 23 as the present text is unacceptable to some countries. 5 Main characteristics The standard rated connecting capacities of a clamping unit are: 0.5 mm2, 0.75 mm2, 1 mm2, 1.5 mm2, 2.5 mm2, 4 mm2, 6 mm2, 10 mm2, 16 mm2, 25 mm2, and 35 mm2. 6 Connection of conductors 6.1 In general, clamping units are suitable to accept one conductor only. Certain types may also be used for two or more conductors of
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