1、| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | BRITISH STANDARD BS EN 60320-2-1:2001 IEC
2、60320-2-1:2000 The European Standard EN 60320-2-1:2000 has the status of a British Standard ICS 29.120.30 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW Appliance couplers for household and similar purposes Part 2-1: Sewing machine couplersThis British Standard, having been p
3、repared under the direction of the Electrotechnical Sector Committee, was published under the authority of the Standards Committee and comes into effect on 15 April 2001 BSI 04-2001 ISBN 0 580 36904 8 BS EN 60320-2-1:2001 Amendments issued since publication Amd. No. Date Comments National foreword T
4、his British Standard is the official English language version of EN 60320-2-1:2000. It is identical with IEC 60320-2-1:2000. It supersedes BS 4491-2.1:1990 which is withdrawn. The UK participation in its preparation was entrusted by Technical Committee PEL/23, Installed electrical accessories, to Su
5、bcommittee PEL/23/3, Connectors for portable appliances, which has the responsibility to: aid enquirers to understand the text; present to the responsible international/European committee any enquiries on the interpretation, or proposals for change, and keep the UK interests informed; monitor relate
6、d international and European developments and promulgate them in the UK. A list of organizations represented on this subcommittee can be obtained on request to its secretary. From 1 January 1997, all IEC publications have the number 60000 added to the old number. For instance, IEC 27-1 has been renu
7、mbered as IEC 60027-1. For a period of time during the change over from one numbering system to the other, publications may contain identifiers from both systems. Cross-references Attention is drawn to the fact that CEN and CENELEC Standards normally include an annex which lists normative references
8、 to international publications with their corresponding European publications. The British Standards which implement these international or European publications may be found in the BSI Standards Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Fi
9、nd” facility of the BSI Standards Electronic Catalogue. A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are responsible for their correct application. Compliance with a British Standard does not of itself confer immunity from lega
10、l obligations. Summary of pages This document comprises a front cover, an inside front cover, the EN title page, pages 2 to 11 and a back cover. The BSI copyright notice displayed in this document indicates when the document was last issued.(8523($167$1$5 (1 1250(8523e(11( (8523b,6 the sewing machin
11、e inlet, which is the part integrated in or incorporated in the sewing machine or its control or intended to be fixed to it. Page5 EN6032021:2000 BSI 04-2001 4 General requirements This clause of IEC 60320-1 applies. 5 General notes on tests This clause of IEC 60320-1 applies. 6 Standard ratings Thi
12、s clause of IEC 60320-1 applies amended as follows: 6.2 Replacement: The rated current of sewing machine couplers shall be not higher than 2,5 A. 7 Classification This clause of IEC 60320-1 applies amended as follows: 7.1.1 Replacement: Sewing machine couplers are for cold conditions only (maximum p
13、in temperature of the sewing machine inlet not exceeding 65 C). 7.1.2 Replacement: Sewing machine couplers are classified according to type of sewing machine to be connected: sewing machine couplers for class I sewing machines; sewing machine couplers for class II sewing machines. 8 Marking This cla
14、use of IEC 60320-1 applies. 9 Dimensions and compatibility This clause of IEC 60320-1 applies amended as follows: 9.1 Not applicable. 9.3 Addition: Note 2 does not apply. For sewing machine couplers no standard sheets have been included, but the following dimensional requirements apply: Page6 EN6032
15、021:2000 BSI 04-2001 In sewing machine connectors, the socket contacts shall be recessed so as to comply with the distances specified in clause 26. This dimension shall be equal, if possible, to the dimension specified on the standard sheet in IEC 60320-1 for a similar connector. NOTE 2 A sewing mac
16、hine connector with entry holes having a diameter or a width not exceeding 3 mm and recessed not less than 3 mm, as measured from the engagement face, is considered to be acceptable; see Standard Sheets C 1, C 5 and C 7 of IEC 60320-1. NOTE 3 A more precise relationship between the dimensions of the
17、 entry hole and the distance from the socket contact to the engagement face is under consideration. The internal length of the socket contact shall be such that the contact overlap between the socket contact and the corresponding pin of the sewing machine inlets is not less than 4 mm. Additional sub
18、clause: (following 9.6): 9.101 Sewing machine couplers shall not be interchangeable with connectors or appliance inlets complying with the standard sheets in IEC 60320-1 nor with plugs or socket-outlets for household and similar purposes (e.g. those complying with IEC 60083). 10 Protection against e
19、lectric shock This clause of IEC 60320-1 applies. 11 Provision for earthing This clause of IEC 60320-1 applies. 12 Terminals and terminations This clause of IEC 60320-1 applies with the following additions: 12.1.3 Replacement: Rewirable sewing machine connectors shall have terminals which can accept
20、 flexible conductors having a nominal cross-sectional area of 0,75 mm 2and 1 mm 2 . For screw and stud terminals the diameter D is 1,4 mm, see standard sheet C27 of IEC 60320-1. Compliance is checked by inspection, by measurement and by fitting conductors having cross- sectional areas of 0,75 mm 2an
21、d 1 mm 2 . Additional subclause (following 12.1.3): 12.101 The terminal(s) in rewirable sewing machine connectors to which more than one conductor shall be connected, shall be checked with the number of conductors to be connected. 12.2.4 Addition: For terminals of size 0, each conductor is subjected
22、 to a pull of 30 N. Page7 EN6032021:2000 BSI 04-2001 12.2.6 Addition: Terminals of size 0 are fitted with conductors having a nominal cross-section of 1 mm 2 , the number of wires and the nominal diameter of the wires being 32 0,20 mm 2 . 13 Construction This clause of IEC 60320-1 applies with the f
23、ollowing additions: Additional subclauses: 13.101 (Following 13.7) Sewing machine connectors shall not have contacts which are recessed in grooves or the like. NOTE This requirement applies in all cases, even if the contacts may not be accessible with the standard test finger. Compliance is checked
24、by inspection. 13.102 (Following 13.11) Sewing machine connectors containing contacts both for the supply voltage and for SELV shall be non-rewirable. Compliance is checked by inspection. 14 Moisture resistance This clause of IEC 60320-1 applies. 15 Insulation resistance and electric strength This c
25、lause of IEC 60320-1 applies. 16 Forces necessary to insert and to withdraw the connector This clause of IEC 60320-1 applies. 17 Operation of contacts This clause of IEC 60320-1 applies. 18 Resistance to heating of appliance couplers for hot conditions or very hot conditions This clause of IEC 60320
26、-1 does not apply. 19 Breaking capacity This clause of IEC 60320-1 applies. Page8 EN6032021:2000 BSI 04-2001 20 Normal operation This clause of IEC 60320-1 applies. 21 Temperature rise This clause of IEC 60320-1 applies. 22 Cords and their connection This clause of IEC 60320-1 applies amended as fol
27、lows: 22.1 Addition to the table: Type of connector Lightest type of cord Minimum nominal cross-sectional area mm 2 Sewing machine connector 60227 IEC 52 60245 IEC 53 0,75* 0,75 * A reduction to 0,5 mm 2for lengths up to 2 m is allowed when IEC 60335-2-28 permits. 22.3, 22.4, 22.5 Addition to the te
28、st specifications: If a sewing machine connector is provided with, or is intended to be fitted with, more than one cord, the test shall be made as follows: non-rewirable sewing machine connectors shall be tested with the cords as delivered; rewirable sewing machine connectors shall be tested using t
29、he sizes and types of cords recommended by the manufacturer; the sewing machine connector shall be tested with each cord separately, any other cord being cut back to a length of approximately 100 mm. NOTE For this test, one additional set of samples per extra cord is needed. 22.5 Replacement: For no
30、n-rewirable sewing machine connectors, the number of flexings is 10 000. 23 Mechanical strength This clause of IEC 60320-1 applies with the following additions: 23.2 Addition to the test specification: If a sewing machine connector is provided with, or is intended to be fitted with, more than one co
31、rd, the test shall be made as follows: non-rewirable sewing machine connectors shall be tested with the cords as delivered; rewirable sewing machine connectors shall be tested using the sizes and types of cords recommended by the manufacturer; all cords shall have a length of approximately 100 mm. Page9 EN6032021:2000
