BS EN 61345-1998 UV test for photovoltaic (PV) modules《光电(PV)模块的紫外线试验》.pdf

1、BRITISH STANDARD BS EN 61345:1998 IEC 61345: 1998 UV test for photovoltaic (PV) modules The European Standard EN 61345:1998 has the status of a British Standard ICS 27.160BSEN61345:1998 This British Standard, having been prepared under the directionof the Electrotechnical Sector Board, was published

2、 underthe authorityof the Standards Boardand comes intoeffect on 15 August 1998 BSI 05-1999 ISBN 0 580 30248 2 National foreword This British Standard is the English language version of EN61345:1998. It is identical with IEC61345:1998. The UK participation in its preparation was entrusted to Technic

3、al Committee GEL/82, Solar photovoltaic energy systems, 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 related

4、 international and European developments and promulgate them in the UK. A list of organizations represented on this committee can be obtained on request to its secretary. From 1 January 1997, all IEC publications have the number60000 added to the old number. For instance, IEC27-1 has been renumbered

5、 as IEC60027-1. 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 to int

6、ernational publications with their corresponding European publications. 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 Correspondence Index”, or

7、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 not of itself confer im

8、munity from legal obligations. Summary of pages This document comprises a front cover, an inside front cover, pages i and ii, theEN title page, pages 2 to 4, an inside back cover and a back cover. This standard has been updated (see copyright date) and may have had amendments incorporated. This will

9、 be indicated in the amendment table on the inside front cover. Amendments issued since publication Amd. No. Date CommentsBSEN61345:1998 BSI 05-1999 i Contents Page National foreword Inside front cover Foreword 2 Text of EN 61345 3ii blankEUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 61345 Ap

10、ril 1998 ICS 27.160 English version UV test for photovoltaic (PV) modules (IEC 61345:1998) Essai aux rayons ultra-violets des modulesphotovoltaques (PV) (CEI 61345:1998) Prfung von photovoltaischen (PV) Modulenmit ultravioletter (UV)-Strahlung (IEC 61345:1998) This European Standard was approved by

11、CENELEC on1998-04-01. 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 stan

12、dards 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 not

13、ified to the Central Secretariat has the same status as the official versions. CENELEC members are the national electrotechnical committees of Austria, Belgium, CzechRepublic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden

14、, Switzerland and United Kingdom. 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 1998 CENELECAll rights of exploitation in any fo

15、rm and by any means reserved worldwide for CENELEC members. Ref. No. EN 61345:1998 EEN61345:1998 BSI 05-1999 2 Foreword The text of document 82/187/FDIS, future edition1 of IEC61345, prepared by IEC TC82, Solar photovoltaic energy systems, was submitted to the IEC-CENELEC parallel vote and was appro

16、ved by CENELEC as EN61345 on1998-04-01. The following dates were fixed: Annexes designated “normative” are part of the body of the standard. Annexes designated “informative” are given for information only. In this standard, Annex ZA is normative and Annex A is informative. Annex ZA has been added by

17、 CENELEC. Endorsement notice The text of the International Standard IEC61345:1998 was approved by CENELEC as a European Standard without any modification. Contents Foreword 2 1 Scope and object 3 2 Normative references 3 3 Initial measurements 3 4 Apparatus 3 5 Procedure 3 6 Final measurements 4 7 R

18、equirements 4 Annex A (informative) Suggested UVlight sources Inside back cover Annex ZA (normative) Normative references to international publications with their corresponding European publications Inside back cover latest date by which the EN has to be implemented at national level by publication

19、of an identical national standard or by endorsement (dop) 1999-01-01 latest date by which the national standards conflicting with the EN have to be withdrawn (dow) 2001-01-01EN61345:1998 BSI 05-1999 3 1 Scope and object This International Standard defines a test which determines the resistance of th

20、e module when exposed to ultra-violet (UV) radiation. This test is useful for evaluating the UV resistance of materials such as polymers and protective coatings. The object of this test is to determine the ability of the module to withstand exposure to ultra-violet (UV) radiation from280nm to400nm.

21、Before conducting this test, light soaking or other pre-conditioning should be performed in accordance with IEC61215 or IEC61646. 2 Normative references The following normative documents contain provisions which, through reference in this text, constitute provisions of this International Standard. A

22、t the time of publication, the editions indicated were valid. All normative documents are subject to revision, and parties to agreements based on this International Standard are encouraged to investigate the possibility of applying the most recent editions of the normative documents indicated below.

23、 Members of IEC and ISO maintain registers of currently valid International Standards. IEC 60904-1:1987, Photovoltaic devices Part1:Measurements of photovoltaic current-voltage characteristics. IEC 60904-3:1989, Photovoltaic devices Part3:Measurement principles for terrestrial photovoltaic (PV) sola

24、r devices with reference spectral irradiance data. IEC 61215:1993, Crystalline silicon terrestrial photovoltaic (PV) modulesDesign qualification and type approval. IEC 61646:1996, Thin-film terrestrial photovoltaic (PV) modulesDesign qualification and type approval. 3 Initial measurements The follow

25、ing initial measurements shall be carried out: visual inspection in accordance with IEC61215 or IEC61646; I-V characteristics at standard test conditions (STC) in accordance with IEC60904-1; insulation test in accordance with IEC61215 or IEC61646. 4 Apparatus The apparatus consists of the items list

26、ed below. a) A temperature controlled test chamber or other arrangement with a window or fixtures for a UV light source and the module(s) under test. The chamber shall be capable of maintaining the module temperature at60 C 5 C and a dry condition. b) A UV light source capable of producing UV radiat

27、ion with an irradiance uniformity of 15%over the test plane of the module(s) and capable of providing the necessary total irradiance in the different spectral regions of interest as defined in clause5 c). The final test report shall indicate which UV light source is used. c) Means for measuring and

28、recording the temperature of the module(s) to an accuracy of 2 C. The temperature sensors shall be attached to the front or back surface of the module near the middle. If more than one module is tested simultaneously, it will suffice to monitor the temperature of one representative sample. d) A cali

29、brated radiometer capable of measuring the irradiance of the UV light produced by the UV light source at the test plane of the module(s). See Annex A for suggested UV light sources. 5 Procedure The test shall be carried out according to the procedure outlined below. a) Use the calibrated radiometer

30、to measure the irradiance at the proposed module test plane and ensure that, at wavelengths between280nm and400nm, the test spectral irradiance is never more than5times the corresponding standard spectral irradiance specified in the standard AM1,5 solar irradiance distribution given byTable 1 of IEC

31、60904-3, that there is no appreciable irradiance at wavelengths below280nm and that it has a uniformity of 15% over the test plane. b) Mount the module in the test plane at the location selected in a) with the front side normal to the UV irradiance beam. c) While maintaining the module temperature w

32、ithin the prescribed range, subject the module(s) to a minimum irradiance of 7,5 kWhm 2in the wavelength range between280nm and320nm, and 15 kWhm 2in the wavelength range between320nm and400nm.EN61345:1998 4 BSI 05-1999 d) Reorient the module so that the back side is normal to the UV irradiance beam

33、. e) Repeat step c) for10% of the time at the irradiation levels that were performed on the front side. 6 Final measurements Repeat the following tests: visual inspection in accordance with IEC61215 or IEC61646; I-V characteristics at STC in accordance with IEC60904-1; insulation test in accordance

34、with IEC61215 or IEC61646. 7 Requirements The photovoltaic modules tested shall fulfill the requirements stated below. No evidence of major visual defects, as defined in IEC61215 or IEC61646. The degradation of maximum power output at STC shall not exceed5% of the value measured before the test. For

35、 thin-film modules, the maximum output power at STC shall exceed the manufacturers minimum power rating for this module type. Insulation resistance shall meet the same requirements as for the initial measurements, as defined in IEC61215 or IEC61646.EN61345:1998 BSI 05-1999 Annex A (informative) Sugg

36、ested UV light sources Selection of a UV light source is based on its ability to meet the spectral requirements of this standard. The following UV light sources can be able to meet these requirements when properly mounted and/or filtered. A.1 QUV-A and QUV-B fluorescent UV lamps, or similar QUV-B la

37、mps have a spectral range from280nm to315nm. The only drawback with this light source is the fact that almost all of the irradiance will be at the high energy end of the specified irradiance range. A combination of QUV-B and QUV-A fluorescent lamps may be used to provide the required irradiation in

38、the specified ranges. A.2 Filtered xenon The spectral irradiance of a filtered xenon lamp in the UV-visible range most closely resembles the spectrum of natural sunlight, especially in the wavelengths from280nm to320nm. Because xenon reproduces all of the solar spectrum, it has more energy in the wa

39、velength bracket ranging from320nm to400nm than the test specifies. To achieve a total irradiation of7,5kWhm 2between280nm and320nm with a xenon source, the sample may be exposed to considerably more than the15kWhm 2of total irradiation specified for the wavelength range between280nm and400nm. A.3 U

40、V-high pressure metal halide lamp These are high pressure mercury discharge lamps with metal halide additives which radiate mainly UVA and UVB. Special quartz glass shall be used to absorb the UVC radiation. This is also important in order to avoid the production of ozone. A.4 Natural sunlight Natur

41、al sunlight can be utilized with concentration. As with the xenon source, in order to achieve a total irradiation of7,5kWhm 2between280nm and320nm, the sample may be exposed to considerably more than the15kWhm 2of total irradiation specified for the wavelength range between280nm and400nm. Annex ZA (

42、normative) Normative references to international publications with their corresponding European publications This European Standard incorporates by dated or undated reference, provisions from other publications. These normative references are cited at the appropriate places in the text and the publi

43、cations are listed hereafter. For dated references, subsequent amendments to or revisions of any of these publications apply to this European Standard only when incorporated in it by amendment or revision. For undated references the latest edition of the publication referred to applies (including am

44、endments). NOTEWhen an international publication has been modified by common modifications, indicated by (mod), the relevant EN/HD applies. Publication Year Title EN/HD Year IEC 60904-1 1987 Photovoltaic devices Part 1: Measurement of photovoltaic current-voltage characteristics EN 60904-1 1993 IEC

45、60904-3 1989 Part 3: Measurement principles for terrestrial photovoltaic(PV) solar devices with reference spectralirradiance data EN 60904-3 1993 IEC 61215 1993 Crystalline silicon terrestrial photovoltaic (PV) modulesDesign qualification and type approval EN 61215 1995 IEC 61646 1996 Thin-film terr

46、estrial photovoltaic (PV) modules Designqualification and type approval EN 61646 1997BS EN 61345:1998 IEC 61345: 1998 BSI 389 Chiswick High Road London W4 4AL BSIBritishStandardsInstitution BSI is the independent national body responsible for preparing BritishStandards. It presents the UK view on st

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