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www bzfxw com BRITISH STANDARD BS EN 60730 2 3 1992 Incorporating Amendments Nos 1 and 2 Automatic electrical controls for household and similar use — Part 2 3 Particular requirements for thermal prot[.]
Licensed Copy: Institute Of Technology Tallaght, Institute of Technology, Fri May 11 00:51:32 GMT+00:00 2007, Uncontrolled Copy, (c) BSI BRITISH STANDARD BS EN 60730-2-3:1992 Incorporating Amendments Nos and Automatic electrical controls for household and similar use — Part 2-3: Particular requirements for thermal protectors for ballasts for tubular fluorescent lamps The European Standard EN 60730-2-3:1992, with the incorporation of amendments A1:1998 and A2:2001, has the status of a British Standard ICS 29.140.99; 97.120 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW Licensed Copy: Institute Of Technology Tallaght, Institute of Technology, Fri May 11 00:51:32 GMT+00:00 2007, Uncontrolled Copy, (c) BSI BS EN 60730-2-3:1992 Cooperating organizations The European Committee for Electrotechnical Standardization (CENELEC), under whose supervision this European Standard was prepared, comprises the national committees of the following countries: Austria Belgium Denmark Finland France Germany Greece Iceland Ireland This British Standard, having been prepared under the direction of the Light Electrical Engineering Standards Policy Committee, was published under the authority of the Standards Board and comes into effect on 15 November 1992 © BSI March 2002 The following BSI references relate to the work on this standard: Committee reference LEL/96 Draft for comment 88/20630 DC ISBN 580 21258 Italy Luxembourg Netherlands Norway Portugal Spain Sweden Switzerland United Kingdom Amendments issued since publication Amd No Date Comments 10032 September 1998 See national forward 13263 March 2002 See national forward Licensed Copy: Institute Of Technology Tallaght, Institute of Technology, Fri May 11 00:51:32 GMT+00:00 2007, Uncontrolled Copy, (c) BSI BS EN 60730-2-3:1992 Contents Cooperating organizations National foreword Page Inside front cover ii Foreword Text of EN 60730-2-3 National annex NA (informative) Original IEC text amended by CENELEC common modification National annex NB (informative) Committees responsible © BSI March 2002 12 13 i Licensed Copy: Institute Of Technology Tallaght, Institute of Technology, Fri May 11 00:51:32 GMT+00:00 2007, Uncontrolled Copy, (c) BSI BS EN 60730-2-3:1992 National foreword This British Standard has been prepared under the direction of the Light Electrical Engineering Standards Policy Committee and is the English language version of EN 60730-2-3:1992 Automatic electrical controls for household and similar use — Part 2-3: Particular requirements for thermal protectors for ballasts for tubular fluorescent lamps, including amendment A1:1998 and Corrigendum March 2001, published by the European Committee for Electrotechnical Standardization (CENELEC) It was derived by CENELEC from IEC 60730-2-3:1990, including amendment 1:1995, published by the International Electrotechnical Commission (IEC) CENELEC corrigendum March 2001 changes the latest date of withdrawal of conflicting national standards in the EN foreword and the foreword to amendment A1 The CENELEC common modifications have been implemented at the appropriate places in the text The start and finish of each common modification is indicated in the text by tags Parts of the original IEC text that have been modified by CENELEC have been quoted in National annex NA The start and finish of text introduced or altered by amendment is indicated in the text by tags !" Tags indicating changes to IEC text carry the number if the IEC amendment For example, text altered by IEC amendment is indicated by !" The foreword of EN 60730-2-3 makes reference to the “date of withdrawal”, dow, of the relevant national standard In this case the relevant national standard is BS 3955 which will cease to be applicable to thermal protectors within the scope of BS EN 60730-2-3 on January 1997 Certification and marks will not be awarded after this date with respect to BS 3955 However such certification and marks already awarded may continue to apply to production until January 2001 BS 3955 will be progressively amended to delete specific controls at the dates of withdrawal agreed This British Standard is to be read in conjunction with BS EN 60730-1:1992 General requirements, which it supplements or modifies The many references to Part should be read as references to BS EN 60730-1, which is the English language version of EN 60730-1 which was derived from IEC Publication 730-1:1986 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 legal obligations Summary of pages This document comprises a front cover, an inside front cover, pages i and ii, the EN title page, pages to 13 and a back cover The BSI copyright notice displayed in this document indicates when the document was last issued ii © BSI March 2002 Licensed Copy: Institute Of Technology Tallaght, Institute of Technology, Fri May 11 00:51:32 GMT+00:00 2007, Uncontrolled Copy, (c) BSI EUROPEAN STANDARD EN 60730-2-3 NORME EUROPÉENNE March 1992 + A1 EUROPÄISCHE NORM February 1998 + A2 August 2001 UDC 621.327:621.316.9:614.8:620.1 Incorporating Corrigendum March 2001 Descriptors: Electrical household appliance, control, automatic control, tubular fluorescent lamp, ballast, thermal protector, rating, requirement, test English version Automatic electrical controls for household and similar use — Part 2-3: Particular requirements for thermal protectors for ballasts for tubular fluorescent lamps (includes amendments A1:1998 and A2:2001) (IEC 60730-2-3:1990 + A1:1995 + A2:2001, modified) Dispositifs de commande électrique automatiques usage domestique et analogue — Partie: 2-3: Règles particulières pour les protecteurs thermiques des ballasts pour lampes tubulaires fluorescence (inclut les amendements et A1:1998 et A2:2001) (CEI 60730-2-3:1990 + A1:1995 + A2:2001, modifiées) Automatische elektrische Regel- und Steuergeräte den Hausgebrauch und ähnliche Anwendungen — Teil 2-3: Besondere Anforderungen für thermische Shutzeinrichtungen für Vorschaltgeräte für Leuchtstoff-lampen (enthält Änderung en A1:1998 und A2:2001) (IEC 60730-2-3:1990 + A1:1995 +A2:2001, modifiziert) ｗｗｗ．ｂｚｆｘｗ．ｃｏｍ This European Standard was approved by CENELEC on 10 December 1991; amendment A1 was approved by CENELEC on 1998-01-01 and A2 was approved by CENELEC on 2001-07-03 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 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 Secretariat has the same status as the official versions CENELEC members are the national electrotechnical committees 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 Comité Européen de Normalisation Electrotechnique Europäisches Komitee für Elektrotechnische Normung Central Secretariat: rue de Stassart 35, B-1050 Brussels © 1992 Copyright reserved to CENELEC members Ref No EN 60730-2-3:1992 + A1:1998 + A2:2001E Licensed Copy: Institute Of Technology Tallaght, Institute of Technology, Fri May 11 00:51:32 GMT+00:00 2007, Uncontrolled Copy, (c) BSI EN 60730-2-3:1992 Foreword Foreword to amendment A1 The International Standard IEC 730-2-3:1990, together with the common modifications prepared by the CENELEC Technical Committee TC 72, Automatic controls for household use, was submitted to the CENELEC Unique Acceptance Procedure (UAP) in February 1991 The text of the amendment 1:1995 to the International Standard IEC 60730-2-3:1990, prepared by IEC TC 72, Automatic controls for household use, together with common modifications prepared by the Technical Committee CENELEC TC 72, Automatic controls for household use, was submitted to the Unique Acceptance Procedure and was approved by CENELEC as amendment A1 to EN 60730-2-3:1992 on 1998-01-01 The text of the draft was approved by CENELEC on 10 December 1991 The following dates were fixed: — latest date of publication of an identical national standard (dop) 1994-01-01 — latest date of withdrawal of conflicting national standards (dow) 2002-01-01 For products which have complied with the relevant national standard before 2002-01-01 as shown by the manufacturer or by a certification body, this previous standard may continue to apply for production until 2002-01-01 This Part has to be used in conjunction with EN 60730-1:1991, Automatic electrical controls for household and similar use — Part 1: General requirements, and its amendments A1:1991 and A11:1991 Consideration may be given to future editions of, or amendments to, EN 60730-1 Where a particular subclause of Part is not mentioned in this Part 2, that subclause applies as far as is reasonable Where this standard states “addition”, “modification” or “replacement”, the relevant text of Part is to be adapted accordingly Subclauses which are in addition to those in IEC 730-1 are numbered 101, 102, etc, additional appendices are labelled AA, BB, etc CENELEC annexes are numbered ZA, ZB, etc There are no special national conditions (snc) causing a deviation from this European Standard other than those listed in Annex ZA of EN 60730-1 Where reference is made to other international or harmonized standards, the edition of that standard quoted in Annex ZB (normative) is applicable NOTE In this document, the following print types are used; — requirements proper: in roman type; — test specifications: in italic type; — explanatory matter: in small roman type The following dates were fixed: — latest date by which the amendment EN has to be implemented at national level by publication of an identical national standard or by endorsement (dop) 1999-06-01 — latest date by which the national standards conflicting with the amendment have to be withdrawn (dow) 2004-01-01 NOTE EN 60730-2-3 originally referred to EN 60730-1:1991 and its amendments A1:1991 and A11:1991 This amendment enables EN 60730-2-3 to be used with EN 60730-1:1995 and its amendments ｗｗｗ．ｂｚｆｘｗ．ｃｏｍ Foreword to amendment A2 The text of the document 72/473/FDIS, future amendment to IEC 60730-2-3:1990, prepared by IEC TC 72, Automatic controls for household use, was submitted to the IEC/CENELEC parallel vote and was approved by CENELEC as amendment A2 to EN 60730-2-3:1992 on 2001-07-03 The following dates were fixed: — latest date by which the amendment has to be implemented at national level by publication of an identical national standard or by endorsement (dop) 2002-04-01 — latest date by which the national standards conflicting with the amendment have to be withdrawn (dow) 2008-07-01 NOTE This amendment enables EN 60730-2-3 to be used with EN 60730-1:2000 Consideration may be given to future editions of, or amendments to, EN 60730-1 © BSI March 2002 Licensed Copy: Institute Of Technology Tallaght, Institute of Technology, Fri May 11 00:51:32 GMT+00:00 2007, Uncontrolled Copy, (c) BSI EN 60730-2-3:1992 Contents Foreword Scope Definitions General requirement General notes on tests Rating Classification Information Protection against electric shock Provision for protective earthing 10 Terminals and terminations 11 Constructional requirements 12 Moisture and dust resistance 13 Electric strength and insulation resistance 14 Heating 15 Manufacturing deviation and drift 16 Environmental stress 17 Overload, endurance and limited short-circuit 18 Mechanical strength 19 Threaded parts and connections 20 Creepage distances, clearances and distances through #solid$ insulation 21 Resistance to heat, fire and tracking 22 Resistance to corrosion 23 #Electromagnetic compatibility (EMC) requirement — Emission$ 23 Radio interference suppression 24 Components 25 Normal operation 26 #Electromagnetic compatibility (EMC) requirement — Immunity$ 27 Abnormal operation 28 Guidance on the use of electronic disconnection Appendices Appendix E Annex H Table 7.2 Page 5 5 6 7 7 7 8 ｗｗｗ．ｂｚｆｘｗ．ｃｏｍ © BSI March 2002 9 10 10 10 10 10 10 10 10 10 11 11 Licensed Copy: Institute Of Technology Tallaght, Institute of Technology, Fri May 11 00:51:32 GMT+00:00 2007, Uncontrolled Copy, (c) BSI ｗｗｗ．ｂｚｆｘｗ．ｃｏｍ blank Licensed Copy: Institute Of Technology Tallaght, Institute of Technology, Fri May 11 00:51:32 GMT+00:00 2007, Uncontrolled Copy, (c) BSI EN 60730-2-3:1992 Scope This clause of Part is replaced as follows: 1.1 This standard applies to the evaluation of thermal protectors for ballasts for tubular fluorescent lamps !This part applies to thermal protectors using NTC or PTC thermistors, additional requirements for which are contained in Annex J." Requirements concerning the testing of the combination of ballast and thermal protector are given in EN 60920. 1.1.1 This standard applies to the inherent safety, to the operating values, operating times, and operating sequences where such are associated with equipment safety and to the testing of thermal protectors used to protect ballasts for tubular lamps from overheating This standard applies to thermal protectors for ballasts within the scope of EN 60920 Thermal protectors covered by this standard may be suitable for ballasts for other discharge lamps Throughout this standard the word “protector” means “self-resetting thermal ballast protector” 1.1.2 This standard is not applicable to other means used to protect ballasts 1.1.3 This standard does not apply to a manual device for opening the circuit 1.2 This standard applies to protectors for use with ballasts for use on a.c supplies up to #690 V$ at 50 Hz or 60 Hz # $ 1.3 This standard does not take into account the response value of an automatic action of a control, if such a response value is dependent upon the method of mounting the control in the equipment Where a response value is of significant purpose for the protection of the user, or surroundings, the value defined in the appropriate household equipment standard or as determined by the manufacturer shall apply Definitions ｗｗｗ．ｂｚｆｘｗ．ｃｏｍ This clause of Part is applicable except as follows: 2.2.16 Thermal motor protector Additional definition: 2.2.16.101 Thermal ballast protector Thermal ballast protector denotes a self-resetting automatic control integrated or incorporated with a ballast for tubular fluorescent lamps and is specifically designed to protect the ballast against overheating under any condition of use The control carries ballast current and is sensitive to ballast temperature and current General requirement This clause of Part is applicable General notes on tests This clause of Part is applicable except as follows: 4.2 Samples required Replacement: 4.2.1 One sample is used for the tests in this standard except a separate sample is used for the test of 17.1.2 and three separate samples are used for the test of 17.4 Rating This clause of Part is applicable © BSI March 2002 Licensed Copy: Institute Of Technology Tallaght, Institute of Technology, Fri May 11 00:51:32 GMT+00:00 2007, Uncontrolled Copy, (c) BSI EN 60730-2-3:1992 Classification This clause of Part is applicable except as follows: 6.3 According to their purpose Additional subclause: 6.3.101 — thermal ballast protector 6.4 According to features of automatic action 6.4.1 — not applicable Additional subclause: 6.4.101 Protectors are further classified as providing micro-interruption on operation as follows: — self-resetting (Type 2.C) 6.6 and 6.7 Not applicable 6.10 to 6.12 inclusive Not applicable 6.14 Not applicable 6.16 Not applicable Information This clause of Part is applicable except as follows: ｗｗｗ．ｂｚｆｘｗ．ｃｏｍ Table 7.2 Replacement: Information Manufacturer’s name or trade mark2) Unique type reference1) 2) Rated voltage or rated voltage range (V) Nature of supply, unless the control is for both a.c and d.c., or unless the rating is the same for a.c and d.c Purpose of control 6a 20 Construction of control Details of any special conductors which are intended to be connected to terminals for internal conductors 31 Method of mounting control5) 37 Minimum and/or maximum rates of change of activating quantity, or minimum and/or maximum cycling rates for a sensing control4) 38 Values of overshoot of activating quantity for sensing controls which are either necessary for correction action, or which can be used for test purposes 48 Operating value (or values) 101 Limited short-circuit capability 102 Rated current101) Clause or Subclause 2.11.1, 2.13.1 2.1.2, 4.3.2 4.3.2, 6.1 4.3.5, 6.3 6.15 10.2 Method C C C D D D D 11.6 4, 15, 17 D X 17 X 15 17.4 6.101, 17 D X D © BSI March 2002 Licensed Copy: Institute Of Technology Tallaght, Institute of Technology, Fri May 11 00:51:32 GMT+00:00 2007, Uncontrolled Copy, (c) BSI EN 60730-2-3:1992 Modification to the notes of Table 7.2: Note 2 = maximum rising rate (for Type actions only) 2 = maximum falling rate (for Type2 actions only) The values 2 and 2 are for test purposes only, and may alternatively be declared as a maximum cycling rate For the purpose of this standard, the rate of change of temperature shall be expressed in K/h Additional note: Note 101 The rated current of the thermal ballast protector is chosen in accordance with the rated current of the ballast Protection against electric shock This clause of Part is applicable Provision for protective earthing This clause of Part is applicable 10 Terminals and terminations This clause of Part is applicable except as follows: 10.1 Not applicable 10.2 Addition: ｗｗｗ．ｂｚｆｘｗ．ｃｏｍ For the purpose of this standard, internal wiring conductors are considered as integrated conductors 11 Constructional requirements This clause of Part is applicable except as follows: 11.3.4 Setting by the manufacturer Addition: Sealing compounds, lock nuts and the like are deemed adequate for this purpose 12 Moisture and dust resistance This clause of Part is applicable except as follows: 12.2 Protection against humid conditions 13 Electric strength and insulation resistance This clause of Part is applicable except as follows: Addition: The suitability of the test in clause 13 may depend upon the method of mounting the protector in the equipment If the results of the tests in clause 13 are not likely to be representative of the results obtained when the protector is used with a ballast, then these tests would normally be carried out on the assembled thermally protected ballast 14 Heating This clause of Part is not applicable Successful completion of the tests of clause 17 of this standard are deemed to be sufficient © BSI March 2002 Licensed Copy: Institute Of Technology Tallaght, Institute of Technology, Fri May 11 00:51:32 GMT+00:00 2007, Uncontrolled Copy, (c) BSI EN 60730-2-3:1992 15 Manufacturing deviation and drift This clause of Part is replaced as follows: 15.1 The allowable deviation in opening temperature shall not exceed ±5 K from the declared opening temperature 15.2 The allowable drift from initial opening temperature following the endurance test of 17.1.3 shall not exceed #+5 K$from the opening temperature recorded on the sample which had been previously tested for deviation # $ 15.3 Compliance is checked by the appropriate tests of this clause 15.4 The consistency shall be determined as follows: 15.4.1 One sample of the protector is tested for initial opening temperature in accordance with 15.4.2 and 15.4.3 Opening is indicated by the interruption of a current through the protector which does not exceed: 1) % of the protector rated current, or 2) 0,01 A, whichever is less 15.4.2 The protector is mounted in an air oven in which the air flow is at least 30 m/min (100 ft/min) Temperature is measured by means of 0,25 mm diameter thermocouple wire attached to the sensing element either of the sample or of an identical sample located in air adjacent to the element ｗｗｗ．ｂｚｆｘｗ．ｃｏｍ Other test apparatus may be used upon agreement between manufacturer and test house 15.4.3 The temperature of the air oven may be rapidly increased to 10 K below the expected opening temperature of the test sample and maintained until conditions of equilibrium have been reached The oven temperature is then increased at a rate of not more than 0,5 K/min until the sample operates For the repeat tests required in 17.1.3.5, it is important that the thermocouple be placed in the same position relative to the test sample as in the initial test 16 Environmental stress This clause of Part is applicable except as follows: 16.3 and 16.4 Not applicable 17 Endurance This clause of Part is replaced as follows: 17 Overload, endurance and limited short-circuit 17.1 General requirements 17.1.1 A protector shall withstand the mechanical, electrical and thermal stresses that occur in normal use 17.1.1.1 Separate samples shall be used for the tests of sub-clauses 17.1.2, 17.1.3 and 17.4 17.1.2 Endurance test (to simulate the effect of short circuited windings of the ballast) 17.1.2.1 An untested protector shall be used for the overload test The protector shall make and break a test current having a power factor between 0.4 and 0.5 at the rated test voltage specified in 17.2, for 000 cycles of operation The test current shall be four times the rated current When the test voltage is 120 V, the test current shall not be less than 20 A 17.1.2.2 For the test, the protector shall be mounted and connected as declared 17.1.2.3 The protector shall be operated thermally in a manner consistent with its normal operation If a heat source is used, it shall be cycled by the protector under test 17.1.2.3.1 The cycling rate shall be (6 ± 1) cycles/min unless other values, required by the characteristics of the protector, are declared in requirements 37 and 38 of Table 7.2 © BSI March 2002 Licensed Copy: Institute Of Technology Tallaght, Institute of Technology, Fri May 11 00:51:32 GMT+00:00 2007, Uncontrolled Copy, (c) BSI EN 60730-2-3:1992 17.1.2.4 The protector shall be deemed to comply with the requirements of 17.1.2 if there has been no malfunction, resulting in non-compliance with clauses 8, 13 and 20 17.1.3 Endurance test (to simulate the effect of starter failure) 17.1.3.1 A protector shall operate such that its drift, specified in 15.2, is not exceeded after making and breaking a test current of twice rated current for 10 000 cycles of operation, at a power factor between 0.4 and 0.5 and a test voltage as specified in 17.2 17.1.3.2 For the test, the protector shall be mounted and connected as declared 17.1.3.3 The protector shall be operated thermally in a manner consistent with its normal operation If a heat source is used, it shall be cycled by the protector under test 17.1.3.4 The cycling rate shall be (6 ± 1) cycles/min unless other values, required by the characteristics of the protector, are declared in requirements 37 and 38 of Table 7.2 17.1.3.5 At the conclusion of the endurance test, the protector shall be subjected to a repeated calibration verification test using the test procedure specified in 15.4.1 17.1.3.6 The protector shall be deemed to comply with the requirements of 17.1.3 if the opening temperature recorded in the repeat test of 17.1.3.5 does not exceed #+5 K$ from the initial opening temperature recorded in the test of 15.1 In addition, there shall have been no malfunction or welding of contacts # $ 17.2 Test voltage Voltages used for the tests of 17.1.2 and 17.1.3 shall be equal to rated voltage or the maximum voltage of the rated voltage range 17.3 Electrical strength requirements ｗｗｗ．ｂｚｆｘｗ．ｃｏｍ After all the tests of 17.1.3, the requirements of 13.2 shall apply to protectors for which the applicability of 13.2 has been previously determined; however the protector shall not be subjected to the humidity treatment 17.4 Limited short-circuit Requirements and test are under consideration 18 Mechanical strength This clause of Part is applicable 19 Threaded parts and connections This clause of Part is applicable 20 Creepage distances, clearances and distances through solid insulation This clause of Part is applicable except as follows: #20.101 Additional subclause: Requirements for creepage distances and clearances not apply — between same polarity live parts [including its heater(s), if used]; — across the contact gap; — between terminals and terminations NOTE This exclusion does not apply to clearance and creepage distances from live parts to earth or to accessible live parts.$ © BSI March 2002 Licensed Copy: Institute Of Technology Tallaght, Institute of Technology, Fri May 11 00:51:32 GMT+00:00 2007, Uncontrolled Copy, (c) BSI EN 60730-2-3:1992 21 Resistance to heat, fire and tracking This clause of Part is applicable except as follows: 21.7 Not applicable 22 Resistance to corrosion This clause of Part is applicable 23 Electromagnetic compatibility (EMC) requirements — Emission This clause of Part is applicable 24 Components This clause of Part is applicable 25 Normal operation This clause of Part is applicable 26 Electromagnetic compatibility (EMC) requirements — Immunity This clause of Part is applicable.$ 27 Abnormal operation !This clause of part is applicable." !28 # $ Guidance on the use of electronic disconnection ｗｗｗ．ｂｚｆｘｗ．ｃｏｍ This clause of part is applicable only if there is electronic disconnection." 10 © BSI March 2002 Licensed Copy: Institute Of Technology Tallaght, Institute of Technology, Fri May 11 00:51:32 GMT+00:00 2007, Uncontrolled Copy, (c) BSI EN 60730-2-3:1992 Appendices The appendices of Part are applicable except as follows: Appendix E Circuit for measuring leakage current This appendix of Part is not applicable !Annex H Requirements for electronic controls This annex of part is applicable except as follows: H.26.5.4 Severity levels Modification: Delete the words “At minimum” from the first sentence Delete the explanatory paragraph H.26.5.5 Remarks to the test procedure The first explanatory paragraph is not applicable H.26.6 Not applicable H.26.9 Fast transient bursts test Additional subclause: H.26.9.101 Test procedure ｗｗｗ．ｂｚｆｘｗ．ｃｏｍ The test is performed five times Three are conducted when the thermal protector is performing its protective function and two when it is not H.26.11 Electrostatic discharge test Clause Replacement: 8.2.1 Delete the first, fifth, sixth, seventh paragraphs, the note and the eighth paragraph as well as the second sentence of the ninth paragraph, replace by: Five discharges are applied to all accessible surfaces Two of the discharges are applied to the thermal protector when it is performing its protective function and three are applied when it is not Accessible parts include parts which are accessible after the removal of detachable parts as described in 8.1.9.5 of IEC 730-1 H.26.12.6 Remarks to the test procedure Additional paragraph: H.26.12.6.101 Sweeping is performed when the thermal protector is performing its protective function and when it is not H.26.13 Evaluation of compliance Delete the second explanatory paragraph H.27 Abnormal operation H.27.1.2 Replace the first line by: The thermal protector shall be operated under the following conditions In addition the thermal protector shall be tested when it is performing its protective function and when it is not." © BSI March 2002 11 Licensed Copy: Institute Of Technology Tallaght, Institute of Technology, Fri May 11 00:51:32 GMT+00:00 2007, Uncontrolled Copy, (c) BSI BS EN 60730-2-3:1992 National annex NA (informative) Original IEC text amended by CENELEC common modifications Scope 1.1 “IEC 920” has been replaced by “EN 60920” 1.1.1 “IEC 920” has been replaced by “EN 60920” 12 Moisture and dust resistance 12.2 The addition has been deleted It read as follows In Canada and the United States, the tests of Appendix D determine proof against humid conditions In Japan, this evaluation is done in the ballast 17 Endurance 17.1.1.1 This sub-clause has been replaced It read as follows Separate samples shall be used for the overload, endurance and limited short-circuit tests 17.1.2 The title of this sub-clause has been replaced It read as follows Overload test 17.1.2.1 The second line of this sub-clause has been amended It read as follows “… a test current having a 40 % to 50 % power …” 17.1.3 The title of this sub-clause has been replaced It read as follows Endurance test ｗｗｗ．ｂｚｆｘｗ．ｃｏｍ 17.1.3.1 The third line of this sub-clause has been amended It read as follows “ operation, at a 40 % to 50 % power factor and ” 17.4 The requirements and test have been deleted They read as follows A protector shall not cause a risk of fire when subjected to the limited short-circuit test Requirements for this test are under consideration In Canada and the United States, compliance is checked by the test of 17.4.1 At the option of the manufacturer the limited short-circuit test shall be performed on the protector alone, as declared by the manufacturer or on the protector installed as intended The test shall be carried out on three new samples which have not been subjected to any other tests 17.4.1 The test circuit shall include a 20 A series fuse having a design characteristic such that it will not open in less than 12 s when carrying 40 A The circuit shall be adjusted such that a limited short-circuit current of 200 A is obtained at a voltage of ±5 % of rated voltage of the protector and without the protector connected in the circuit The protector is connected in the circuit, without further circuit adjustment, by two 0,91 m (3 ft) lengths of 1,6 mm diameter (No 14 AWG copper wire) Surgical grade cotton shall be wrapped around the protector, if tested alone, during the test Each protector shall be subjected to one test in which the short-circuit is closed on the protector If the protector cycles during the test and if the cotton is not ignited, the test shall be continued until the protector permanently opens the circuit or the series fuse opens 17.4.1.1 The protector shall be deemed to comply with the requirements of 17.4 provided there is no ignition of the cotton indicator or other evidence of risk of fire such as emission of flame or molten metal during or after the test Appendix C has been deleted It read as follows Cotton used for mercury switch test This appendix of Part is applicable to the test of 17.4 12 © BSI March 2002 Licensed Copy: Institute Of Technology Tallaght, Institute of Technology, Fri May 11 00:51:32 GMT+00:00 2007, Uncontrolled Copy, (c) BSI BS EN 60730-2-3:1992 Appendix D has been deleted It read as follows Heat, fire and tracking This appendix of Part is applicable in the United States Annex H Requirements for electronic controls (added by IEC amendment 1:1995) H.26.9 Fast transient bursts test The replacement has been deleted It read as follows Replacement of the explanatory paragraph: This test is under consideration in Canada and the United States H.26.10 Ring wave test The replacement and the addition have been deleted They read as follows Replace the explanatory paragraph by: This test is applicable in Canada and the U.S.A H.26.10.4 Test procedure Addition: H.26.10.4.101 Five of the tests are performed when the thermal protector is performing its protective function and two are performed when it is not H.26.11 Electrostatic discharge test ｗｗｗ．ｂｚｆｘｗ．ｃｏｍ The explanation paragraph has been deleted It read as follows In some countries, accessible parts may include parts which can be contacted during installation and service National annex NB (informative) Committees responsible The United Kingdom participation in the preparation of this European Standard was entrusted by the Light Electrical Engineering Standards Policy Committee (LEL/-) to Technical Committee LEL/96, upon which the following bodies were represented: Association of Control Manufacturers TACMA (BEAMA Ltd.) 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