1、BRITISH STANDARDBS EN 61228:2008Fluorescent ultraviolet lamps used for tanning Measurement and specification methodICS 17.240; 29.140.30; 97.170g49g50g3g38g50g51g60g44g49g42g3g58g44g55g43g50g56g55g3g37g54g44g3g51g40g53g48g44g54g54g44g50g49g3g40g59g38g40g51g55g3g36g54g3g51g40g53g48g44g55g55g40g39g3g3
2、7g60g3g38g50g51g60g53g44g42g43g55g3g47g36g58BS EN 61228:2008This British Standard was published under the authority of the Standards Policy and Strategy Committee on 30 April 2008 BSI 2008ISBN 978 0 580 57614 0National forewordThis British Standard is the UK implementation of EN 61228:2008. It is id
3、entical to IEC 61228:2008. It supersedes BS EN 61228:1995 which will be withdrawn on 1 February 2011.The UK participation in its preparation was entrusted by Technical Committee CPL/34, Lamps and related equipment, to Subcommittee CPL/34/1, Electric lamps.A list of organizations represented on this
4、committee can be obtained on request to its secretary.This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application.Compliance with a British Standard cannot confer immunity from legal obligations.Amendments/corrigenda issu
5、ed since publicationDate CommentsEUROPEAN STANDARD EN 61228 NORME EUROPENNE EUROPISCHE NORM March 2008 CENELEC European Committee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische Normung Central Secretariat: rue de Stassart
6、 35, B - 1050 Brussels 2008 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members. Ref. No. EN 61228:2008 E ICS 17.240; 29.140.01; 97.170 Supersedes EN 61228:1994 + A1:1996English version Fluorescent ultraviolet lamps used for tanning - Measurement
7、and specification method (IEC 61228:2008) Lampes fluorescentes ultraviolet utilises pour le bronzage - Mthode de mesure et de spcification (CEI 61228:2008) UV-Leuchtstofflampen fr Brunungszwecke - Verfahren zur Messung und Beschreibung(IEC 61228:2008) This European Standard was approved by CENELEC o
8、n 2008-02-01. 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 standards ma
9、y 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
10、 the Central Secretariat has the same status as the official versions. CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Cyprus, the Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxe
11、mbourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. Foreword The text of document 34A/1242/FDIS, future edition 2 of IEC 61228, prepared by SC 34A, Lamps, of IEC TC 34, Lamps and related equipment, was submitted to
12、 the IEC-CENELEC parallel vote and was approved by CENELEC as EN 61228 on 2008-02-01. This European Standard supersedes EN 61228:1994 + A1:1996. In EN 61128:2008, an equivalency code for the lamps is introduced. This equivalency code characterises the spectral energy distribution and is to be applie
13、d when replacing lamps in tanning equipment. 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) 2008-11-01 latest date by which the national standards conflicting with the EN hav
14、e to be withdrawn (dow) 2011-02-01 Annex ZA has been added by CENELEC. _ Endorsement notice The text of the International Standard IEC 61228:2008 was approved by CENELEC as a European Standard without any modification. _ BS EN 61228:2008 2 CONTENTS 1 Scope.4 2 Normative references .4 3 Terms and def
15、initions .4 4 General test conditions.6 4.1 Ageing.6 4.2 Operating position .6 4.3 Ambient temperature .6 4.4 Test voltage 6 4.5 Ballast.6 5 Test requirements 6 5.1 General .6 5.2 Spectroradiometric measuring system .6 6 Measurement and evaluation procedure .7 6.1 Measurement 7 6.2 Calculation of th
16、e total effective UV irradiance 7 6.3 Correction factors7 7 Lamp specification8 8 Lamp marking.8 Annex A (normative) Determination of the optimum UV irradiance of fluorescent UV lamps10 Annex B (normative) Ultraviolet action spectra.11 Figure B.1 UV action spectra for erythema and NMSC .11 Table B.1
17、 Weighting factors S() for the erythema and the NMSC action spectrum 12 Annex ZA (normative) Normative references to international publications with their corresponding European publications.13 BS EN 61228:2008 3 FLUORESCENT ULTRAVIOLET LAMPS USED FOR TANNING MEASUREMENT AND SPECIFICATION METHOD 1 S
18、cope This International Standard describes the method of measuring, evaluating and specifying the characteristics of fluorescent ultraviolet lamps that are used in appliances for tanning purposes. It includes specific requirements regarding the marking of such lamps. These recommendations relate onl
19、y to type testing. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. IEC 600
20、50-845:1987, International Electrotechnical Vocabulary (IEV) Chapter 845: Lighting IEC 60081, Double-capped fluorescent lamps Performance specifications IEC 60901, Single-capped fluorescent lamps Performance specifications IEC 60335-2-27, Household and similar electrical appliances Safety Part 2-27:
21、 Particular requirements for appliances for skin exposure to ultraviolet and infrared radiation ClE 63:1984, The spectroradiometric measurement of light sources IEC 62471, Photobiological safety of lamps and lamp systems 3 Terms and definitions For the purposes of this document, the following terms
22、and definitions apply. 3.1 ultraviolet lamp lamp which radiates especially strongly in the ultraviolet, the visible radiation produced, if any, not being of direct interest IEV 845-07-52 3.2 fluorescent lamp discharge lamp of the low-pressure mercury type in which most of the light is emitted by one
23、 or several layers of phosphors excited by the ultraviolet radiation from the discharge IEV 845-07-26 BS EN 61228:2008 4 3.3 type test test or a series of tests made on a type test sample for the purpose of checking compliance of the design of a given product with the requirements of the relevant st
24、andard 3.4 spectroradiometer instrument for measuring radiometric quantities in narrow wavelength intervals over a given spectral region IEV 845-05-07 3.5 bandwidth at a given wavelength width at half-amplitude points of the transmittance function of a monochromator (unit: nm) 3.6 spectral adjective
25、 that, when applied to a quantity X pertaining to electromagnetic radiation, indicates: either that X is a function of the wavelength , symbol: X(); or that the quantity referred to is the spectral concentration of X, symbol: X= dX/d . Xis also a function of and in order to stress this it may be wri
26、tten X() without any change of meaning IEV 845-01-16 3.7 irradiance quotient of the radiant flux deincident on an element of the surface containing the point, by the area dA of that element (unit: W/m2) IEV 845-01-37 3.8 action spectrum efficiency of monochromatic radiations for producing a specifie
27、d phenomenon in a specified system IEV 845-06-14, modified 3.9 effective adjective that, when applied to a quantity pertaining to electromagnetic radiation, indicates that the quantity referred to is weighted according to a specified action spectrum 3.10 nominal value approximate quantity value used
28、 to designate or identify a lamp 3.11 rated value quantity value for a characteristic of a lamp for specified operating conditions NOTE The value and/or conditions are specified in this standard, or assigned by the manufacture or responsible vendor. BS EN 61228:2008 5 4 General test conditions 4.1 A
29、geing Before the initial measurements, lamps shall be aged for a period of 5 h 0,25 h under normal operating conditions. 4.2 Operating position During ageing and measurement, lamps shall be operated in a horizontal position. Ageing is preferably in a horizontal position; a vertical position may also
30、 be applied. 4.3 Ambient temperature The measurement shall be made in a draught-free atmosphere at an ambient temperature of 25 C 1 C. NOTE If applicable, lamps may also be measured under conditions different from the above standard ambient temperature conditions to establish the optimum UV irradian
31、ce, as described in Annex A. 4.4 Test voltage The test voltage applied to the circuit shall be as specified on the relevant lamp data sheet. 4.5 Ballast Lamps shall be operated with a reference ballast. In cases where a reference ballast has not been established, an appropriate test ballast shall be
32、 specified by the lamp manufacturer or responsible vendor. The ballast shall be operating at a frequency of 50 60 Hz. 5 Test requirements 5.1 General Spectroradiometric measurements shall be made in accordance with the relevant recommendations of the CIE (International commission on illumination ),
33、as given in CIE 63. Additional information about UV measurements is given in Annex B of IEC 62471. Requirements for electrical measurements are given in Annex B of IEC 60081 and IEC 60901. 5.2 Spectroradiometric measuring system Lamps shall be measured in an appropriate spectroradiometric system to
34、obtain the spectral irradiance. The system input optics shall have cosine response to accurately measure irradiance. The spectroradiometer shall have a bandwidth not exceeding 2,5 nm. The distance between detector and lamp axis is not specified but shall be not less than 10 cm. NOTE 1 For the public
35、ation of the final lamp specifications, the measured irradiance values are corrected to arrive at irradiance values at 25 cm distance from the lamp axis (see 6.3). NOTE 2 A bandwidth of 1 nm is advisable for greater measurement accuracy in cases where a rapid change of the spectral irradiance occurs
36、 within a small bandwidth area. BS EN 61228:2008 6 NOTE 3 The bandwidth should be at least 2,5 times the measurement interval.(e.g. 2,5 nm bandwidth requires 1 nm measurement interval) 6 Measurement and evaluation procedure 6.1 Measurement The spectral irradiance shall be measured at intervals of 1
37、nm from 250 nm to 400 nm. Under the test conditions, the lamp power, current and voltage shall be recorded. 6.2 Calculation of the total effective UV irradiance The total effective UV irradiance shall be calculated from the spectral irradiance using the following formula: Eeff= E. S() . where Eeffis
38、 the total effective irradiance (W/m2); Eis the spectral irradiance (W/(m2.nm); S() is the weighting factor according to the applicable action spectrum; is the wavelength interval (nm). The wavelength interval for the calculation shall preferably be equal to the bandwidth. The applicable action spec
39、tra for erythema and NMSC are given in Annex B. For the total effective UV irradiance weighted according to the erythema action spectrum, the summation shall be performed over the following wavelength range: 250 nm 400 nm. For the total effective UV irradiance weighted according to the NMSC action s
40、pectrum, the summation shall be performed over two wavelength ranges: 250 nm 320 nm, and 320 nm 230; N for lamps with a narrow reflector angle 320 nm. X is to be given in mW/m2rounded to the nearest integer, Y is to be rounded to the nearest first decimal. The effective values are at 25 cm distance
41、and under conditions of optimum UV irradiance. EXAMPLE 100 W reflector lamp with 220 reflector angle erythema effective UV irradiance (250 nm 400 nm) = 47 mW/m2short wave NMSC effective UV irradiance ( 320 nm) = 61 mW/m2long wave NMSC effective UV irradiance ( 320 nm) = 19 mW/m2Equivalency code: 100
42、R47/3,2 BS EN 61228:2008 9 Annex A (normative) Determination of the optimum UV irradiance of fluorescent UV lamps Many fluorescent UV lamps for tanning have a very high wall loading. When operated at the standard ambient temperature of 25 C, the vapour pressure will be too high and the emitted UV ra
43、diation will be lower than its optimum value. In many appliances, forced cooling is applied in order to reach optimum conditions for the radiation. The electrical characteristics and the effective UV irradiance have to be specified under these conditions for optimum UV irradiance. To arrive at the v
44、alues at optimum UV irradiance two methods can be applied: a) the measurement is made under non-standard ambient conditions to control the vapour pressure, i.e. by a lower ambient temperature or by local cooling. The conditions to be applied are dependent on the lamp type and shall be described in t
45、he manufacturers documentation. b) the measurement is made under standard ambient conditions and a correction factor is applied to the results. This correction factor can be determined for each lamp type from a continuous plot of the UV irradiance, emitted by the phosphor, during the run-up of the l
46、amp until a stable situation is reached. From this plot, the maximum value and the value after stabilisation can be measured. The correction factor to be applied follows from the quotient of the maximum value by the stabilised value. At the time of maximum UV irradiance the lamp wattage, current and
47、 voltage have to be recorded. In case of dispute, the second method shall be the reference measuring method. BS EN 61228:2008 10 Annex B (normative) Ultraviolet action spectra The UV action spectra to be applied are the erythema and the NMSC (non-melanoma skin cancer) action spectra, as given in IEC
48、 60335-2-27. The action spectra are shown graphically in Figure B.1 and the weighting factors S() are listed in Table B.1. NOTE The erythema action spectrum is defined from the following parameters: Wavelength (nm) Weighting factor S() 298 1 298 328 100,094(298 - )328 400 100,015(140 - )250 260 270
49、280 290 300 310 320 330 340 350 360 370 380 390 400 10 1 0,1 0,01 0,001 0,000 1 Weighting factor S() Wavelength (nm) Spectrum for non-melanoma skin cancer Spectrum for erythema IEC 2351/07 Figure B.1 UV action spectra for erythema and NMSC BS EN 61228:2008 11 Table B.1 Weighting factors S() for the erythema and the NMSC action spectrum Weighting factor Weighting factor Weighting factor Wavelength nm Erythema NMSC Wavelengt
