1、BRITISH STANDARD BS EN 50344-1:2002 Routine tests for controls within the scope of the EN 60730 series Part 1: General requirements The European Standard EN 50344-1:2001 has the status of a British Standard ICS 97.120 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBS EN 50344-
2、1:2001 This British Standard, having been prepared under the direction of the Electrotechnical Sector Committee, was published under the authority of the Standards Committee and comes into effect on 18 February 2002 BSI 18 February 2002 ISBN 0 580 38212 5 National foreword This British Standard is t
3、he official English language version of EN 50344-1:2001, including corrigendum October 2001. The UK participation in its preparation was entrusted to Technical Committee CPL/72, Electrical control devices for household appliances and equipment, which has the responsibility to: A list of organization
4、s represented on this committee can be obtained on request to its secretary. Cross-references The British Standards which implement international or European publications referred to in this document may be found in the BSI Standards Catalogue under the section entitled “International Standards Corr
5、espondence Index”, or by using the “Find” 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 n
6、ot of itself confer immunity from legal obligations. aid enquirers to understand the text; present to the responsible European committee any enquiries on the interpretation, or proposals for change, and keep the UK interests informed; monitor related international and European developments and promu
7、lgate them in the UK. Summary of pages This document comprises a front cover, an inside front cover, the EN title page, pages 2 to 5 and a back cover. The BSI copyright date displayed in this document indicates when the document was last issued. Amendments issued since publication Amd. No. Date Comm
8、entsEUROPEAN STANDARD EN 50344-1 NORME EUROPENNE EUROPISCHE NORM June 2001 CENELEC European Committee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische Normung Central Secretariat: rue de Stassart 35, B - 1050 Brussels 2001
9、CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members. Ref. No. EN 50344-1:2001 E ICS 97.120 Incorporating corrigendum October 2001 English version Routine tests for controls within the scope of the EN 60730 series Part 1: General requirements Essai
10、s de production des dispositifs de commande du domaine de la srie des EN 60730 Partie 1: Rgles gnrales Stckprfungen in der Fertigung von Regel- und Steuergerten im Geltungsbereich der Normenreihe EN 60730 Teil 1: Allgemeine Anforderungen This European Standard was approved by CENELEC on 2000-08-01.
11、CENELEC members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for 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
12、on application to the Central Secretariat or to any CENELEC member. This European Standard exists in three official 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 S
13、ecretariat has the same status as the official versions. CENELEC members are the national electrotechnical committees of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and Uni
14、ted Kingdom.EN 50344-1:2001 - 2 - Foreword This European Standard was prepared by the Technical Committee CENELEC TC 72, Automatic controls for household use. The text of the draft was submitted to the Unique Acceptance Procedure and was approved by CENELEC as EN 50344-1 on 2000-08-01. The proposal
15、to prepare a draft for routine tests originated from a decision taken at the meeting of CLC/TC 72 held 6-7 December 1994 where CLC/TC 72 Working Group 1 was set up to produce a draft for routine tests, based on the document for routine testing of appliances under the scope of EN 60335-1, for use by
16、testing authorities. Following the circulation of drafts prepared by WG 1, document CLC/TC 72(SEC)71 which was circulated during 1996, and document CLC/TC 72(SEC)87 circulated during 1997, it was agreed at the meeting of CLC/TC 72 held 11 and 12 September 1997 that when finalized, the requirements f
17、or routine tests should be published in a separate standard. At the meeting of CLC/TC 72 held 10 and 11 September 1998 it was also agreed that there needed to be a Part 2 to this standard in order to cover functional testing of some safety related controls. It was agreed that work on Part 2 would no
18、t be started until Part 1 was complete. The following dates were fixed: latest date by which the EN has to be implemented at national level by publication of an identical national standard or by endorsement (dop) 2001-12-01 latest date by which the national standards conflicting with the EN have to
19、be withdrawn (dow) 2003-08-01 _- 3 - EN 50344-1:2001 Introduction The tests detailed in this standard are carried out by the manufacturer and apply to products within the scope of EN 60730-1 and its Part 2s. This standard is for use within the scheme of the CENELEC certification agreement (CCA) and
20、can be used in conjunction with other schemes. Routine tests are line tests performed on 100 % of production and are normally carried out at the final stage of manufacture. NOTE 1 Routine tests are not to be confused with functional or performance tests, or product verification tests (repeat type te
21、sts). NOTE 2 Functional or performance tests are considered the responsibility of the manufacturer and shall be carried out at the manufacturers discretion unless otherwise specified in clause 2 of this standard NOTE 3 Product verification tests (repeat type tests) are considered the responsibility
22、of the manufacturer and shall be carried out at the manufacturers discretion and to the manufacturers own quality system. These tests are performed to ensure the electrical safety of the products and are intended to reveal a variation during the manufacture of Automatic Electrical Controls which cou
23、ld impair safety. They do not impair the properties and the reliability of the Automatic Electrical Control. They are normally carried out on the complete Automatic Electrical Control after assembly but the manufacturer may perform the tests at an appropriate stage during production provided later m
24、anufacturing operations will not affect the results. The tests listed in this standard are the minimum considered necessary to cover essential electrical safety aspects. It is the responsibility of the manufacturer to decide if additional routine tests are necessary. It may be determined from engine
25、ering considerations of the manufacturer that some of the tests required in this standard are inappropriate and therefore unnecessary, e.g. for those Automatic Electrical Controls which can only be tested when incorporated or integrated in the final application. For the purpose of this standard the
26、definitions of EN 60730 apply.EN 50344-1:2001 - 4 - 1 General 1.1 The electrical safety tests described in this standard shall be carried out at the final stage of manufacture on the following Automatic Electrical Controls:a) free standing and in line cord controls, 100 % of production; b) independe
27、ntly mounted Automatic Electrical Controls, 100 % of production; c) any Automatic Electrical Controls with flexible integrated or internal conductors, 100 % of production; d) incorporated or integrated Automatic Electrical Controls with any surfaces directly accessible to the end user when mounted a
28、s declared 100 % of production. Except that for controls where 100 % testing is carried out on the final equipment in which the control is incorporated or integrated, routine testing is not required and testing is subject to agreement between the Control Manufacturer and the Appliance Manufacturer.
29、1.2 Components of the Control need not be subjected to the routine tests if they have been tested 100 % previously equivalent to the requirements of this standard. 1.3 Tests shall be made on the complete Automatic Electrical Control after assembly, except that where this is not practical it shall be
30、 permissible to carry out certain tests at a stage prior to final assembly. If a flexible cord is provided, all Automatic Electrical Control shall be tested with the cord fitted. 1.4 Any nonconforming control shall be clearly identified and segregated to prevent unauthorized use, delivery or mixing
31、with conforming products. Repaired and reworked controls shall be reinspected in accordance with documented procedures. 1.5 The manufacturer shall install and maintain a failure investigation and corrective action procedure, and shall document the testing, test results, test equipment verification a
32、nd any corrective actions in case of non-compliance of test equipment or a control. 2 Test method (general conditions) 2.1 No preconditioning of the control is required before testing. 2.2 The test equipment shall be verified for correct operation. 2.3 It shall be verified that the values of test cu
33、rrent and voltage are correct and are applied in such a manner that they are not detrimental to the product. 3 Earth continuity test A current of at least 10 A, and derived from an a.c. source with a no load voltage not exceeding 12 V, is passed between the earthing terminal, earthing termination or
34、 earthing contact, and each other accessible part required to be connected thereto, in turn if applicable. The voltage drop between the earthing terminal, earthing termination or earthing contact and the part is measured, and the resistance calculated from the current and this voltage drop shall, in
35、 no case, exceed 0,1 ohm. The test is only carried out for the duration necessary for the measurement to be made. Care shall be taken that the contact resistance between the tip of the measuring probe and the metal part under test does not influence the test results.- 5 - EN 50344-1:2001 The resista
36、nce of any external conductor or internal conductor is not included in the resistance measurement, but the resistance of any integrated conductor is included. 4 Electric strength test The test is conducted between live parts and all metal surfaces accessible to the user including foil or a suitable
37、alternative on accessible non metallic surfaces when the control is mounted as declared. A voltage of substantially sinusoidal form having a frequency of 50 Hz to 60 Hz and the value specified in Table 4 shall be applied for a minimum of one second. No breakdown or flashover shall occur during the t
38、ests. Table 4 Test voltages for the electric strength test Test voltage for V Points of application 1) Class I controls Class II controls Class III controls Between live parts and accessible metal surfaces and between accessible non metallic surfaces covered by metal foil or a suitable alternative s
39、eparated from live parts by: basic insulation only 1 000 400 double or reinforced insulation 2 500 2 500 Between live parts and metal parts separated from live parts by basic insulation only 2) 1 000 1)Special components which might render the test impractical, such as electronic parts, neon lamps,
40、coils or windingsshall be disconnected at one pole or bridged as appropriate to the insulation being tested. 2)This test may be carried out on components during assembly. The circuit used for the test incorporates a current sensing device which trips when the current exceeds 5 mA. However, it may be
41、 necessary to set the device to trip at a higher value which shall not exceed 30 mA. Tripping of the device shall indicate breakdown by audible or visual means. The high voltage transformer shall be capable of maintaining the specified voltage until the tripping current flows. Instead of being subje
42、cted to an a.c. voltage, the insulation may be subjected to a d.c. voltage of 1,5 times the value shown in the table. An a.c. voltage having a frequency up to 5 Hz is considered to be a d.c. voltage.BS EN 50344-1:2002 BSI 389 Chiswick High Road London W4 4AL BSI British Standards Institution BSI is
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