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1、BRITISH STANDARD BS EN 61121:2005 Tumble dryers for household use Methods for measuring the performance The European Standard EN 61121:2005 has the status of a British Standard ICS 97.060 ? BS EN 61121:2005 This British Standard was published under the authority of the Standards Policy and Strategy
2、Committee on 15 February 2006 BSI 15 February 2006 ISBN 0 580 46714 7 National foreword This British Standard is the official English language version of EN 61121:2005. It was derived by CENELEC from IEC 61121:2002 + corrigenda 2003. It supersedes BS EN 61121:1999 which will be withdrawn on 1 Decemb
3、er 2007. The CENELEC common modifications have been implemented at the appropriate places in the text and are indicated by common modification tags . The UK participation in its preparation was entrusted by Technical Committee CPL/59, Performance of household electrical appliances, to Subcommittee C
4、PL/59/1, Performance of home laundry appliances, which has the responsibility to: A list of organizations represented on this subcommittee can be obtained on request to its secretary. Cross-references The British Standards which implement international or European publications referred to in this do
5、cument may be found in the BSI Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Search” facility of the BSI Electronic Catalogue or of British Standards Online. This publication does not purport to include all the necessary provisions of a contrac
6、t. Users are responsible for its correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. aid enquirers to understand the text; present to the responsible international/European committee any enquiries on the interpretation, or proposals for
7、change, and keep UK interests informed; monitor related international and European developments and promulgate them in the UK. Summary of pages This document comprises a front cover, an inside front cover, the EN title page, pages 2 to 31 and a back cover. The BSI copyright notice displayed in this
8、document indicates when the document was last issued. Amendments issued since publication Amd. No. DateComments EUROPEAN STANDARD EN 61121 NORME EUROPENNE EUROPISCHE NORM May 2005 CENELEC European Committee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisc
9、hes Komitee fr Elektrotechnische Normung Central Secretariat: rue de Stassart 35, B - 1050 Brussels 2005 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members. Ref. No. EN 61121:2005 E ICS 97.060 Supersedes EN 61121:1999 + A11:2000 English version T
10、umble dryers for household use Methods for measuring the performance (IEC 61121:2002 + corrigenda 2003, modified) Sche-linge tambour usage domestique Mthodes de mesure de laptitude la fonction (CEI 61121:2002 + corrigenda 2003, modifie) Wschetrockner fr den Hausgebrauch - Verfahren zur Messung der G
11、ebrauchseigenschaften (IEC 61121:2002 + Corrigenda 2003, modifiziert) This European Standard was approved by CENELEC on 2005-03-01. 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
12、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
13、 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, Cyprus, Czech Republic, Denma
14、rk, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. 2 Foreword The text of the International Standard IEC 61121:2002, prepared
15、by SC 59D, Home laundry appliances, of IEC TC 59, Performance of household electrical appliances, together with the common modifications prepared by the Technical Committee CENELEC TC 59X, Consumer information related to household electrical appliances, was submitted to the Unique Acceptance Procedu
16、re (UAP) but did not receive sufficient support. A new draft, including also the corrigenda April 2003 and September 2003 to IEC 61121:2002, allowing to maintain the classification of tumble dryers according to the energy label Directive 95/13/EC, was submitted to the formal vote and was approved by
17、 CENELEC as EN 61121 on 2005-03-01. Significant technical differences are a) reference machine in 7.3.2 is neutralized, b) an addition to Z1.1 describes factors which shall be used to correct the value for the energy consumption of the appliance found during the test in order to get the correct labe
18、l value for declaration. This European Standard supersedes EN 61121:1999 and its amendment A11:2000. 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) 2005-12-01 latest date by
19、which the national standards conflicting with the EN have to be withdrawn (dow) 2007-12-01 Annexes ZA and ZB have been added by CENELEC. Clauses, tables and annexes which are additional to those given in IEC 61121 are prefixed “Z”. _ BS EN 61121:2005 Endorsement notice The text of the International
20、Standard IEC 61121:2002 + corrigendum April 2003 + corrigendum September 2003 was approved by CENELEC as a European Standard with agreed common modifications as given below. _ 3 BS EN 61121:2005 CONTENTS INTRODUCTION 5 1 Scope 6 2 Normative references .6 3 Definitions and symbols6 4 Dimensions 8 5 R
21、ated capacity .8 6 General conditions for measurements.9 6.1 General.9 6.2 Resources and ambient conditions 9 7 Test loads 10 7.1 Composition 10 7.2 Usage .11 7.3 Preparation .11 8 Instrumentation and accuracy.12 8.1 Mass.12 8.2 Water and air temperature.13 8.3 Water volume 13 8.4 Water pressure13 8
22、.5 Water hardness.13 8.6 Water conductivity.13 8.7 Electrical energy13 8.8 Time13 8.9 Ambient humidity.13 9 Performance tests 13 9.1 General.13 9.2 Procedure for drying performance13 10 Evaluation and calculation16 10.1 Final moisture content of the load16 10.2 Electric energy consumption16 10.3 Wat
23、er consumption16 10.4 Time17 10.5 Condensation efficiency.17 10.6 Evenness of drying17 11 Reporting of test results .18 Annex A (normative) Nominal and standard exhaust duct for tumble dryer testing22 Annex B (normative) Cotton test load25 Annex C (normative) The bone-dry method .27 Annex D (normati
24、ve) Water preparation 28 Annex ZA (informative) Modified cotton base load.29 Annex ZB (normative) Normative references to international publications with their corresponding European publications .30 BS EN 61121:2005 4 Bibliography .31 Figure A.1 Pressure/air flow curve .22 Figure A.2 Standard exhau
25、st23 Figure A.3 Standard exhaust simulator.24 Table 1 Number of items of cotton test load for various rated capacities, W10 Table 2 Specifications for initial moisture content of the test load .12 Table 3 Specification for final moisture content of the test load after drying 14 5 BS EN 61121:2005 IN
26、TRODUCTION This third edition has been developed in light of experience with use of the second edition of IEC 61121. Other changes include some minor revisions to the test conditions and alterations to the test load to ensure that this remains harmonised with the IEC 60456 load for clothes washers.
27、In summary, the main changes are as follows. 1) General: more terms have been defined and some previous definitions have been streamlined, in addition to the correction of some symbols and equations; where possible, definitions and terms have been used in common with IEC 60456; the content has been
28、organised into a more logical and simple structure, and repetitive sections have been removed. 2) The conditions of measurement: the wording of various sections has been revised to reduce ambiguity; limits have been defined for water conductivity for auto-sensing dryers that are sensitive to conduct
29、ivity, as well as methods to adjust conductivity where necessary; specifications of a nominal exhaust duct were included. 3) Reproducibility and repeatability of test results: revision of the specification for the cotton test load to include suitable test materials which are currently available on t
30、he market; more careful definition of the process and conditions for pre-treatment, conditioning and normalisation. 4) Test methods: accuracy of measurement has been defined for all instruments; limits and interpretations of the allowable final moisture content for each type of dryer are now defined
31、; practical advice regarding the test procedure has been given with the aim of reducing ambiguity. BS EN 61121:2005 6 TUMBLE DRYERS FOR HOUSEHOLD USE METHODS FOR MEASURING THE PERFORMANCE 1 Scope This International Standard is applicable to household electric tumble dryers of the automatic and non-a
32、utomatic type, with or without a cold water supply and incorporating a heating device. The object is to state and define the principal performance characteristics of household electric tumble dryers of interest to users and to describe standard methods for measuring these characteristics. This stand
33、ard is concerned neither with safety nor with performance requirements. This European Standard also specifies, as far as necessary, the test methods which shall be applied in accordance with the Commissions Directive 95/13/EC of 23 May 1995 implementing Council Directive 92/75/EEC with regard to ene
34、rgy labelling of household electric tumble dryers and adds clauses defining permitted tolerances to values declared by the manufacturer and control procedures for checking these declared values. 2 Normative references NOTE Normative references to International Standards are listed in Annex ZB (norma
35、tive). 3 Definitions and symbols For the purposes of this standard, the following definitions apply. 3.1 tumble dryer appliance in which textile material is dried by tumbling in a rotating drum, through which heated air is passed 3.2 air vented tumble dryer tumble dryer with a fresh-air intake which
36、 is heated and passed over the textile material and where the resulting moist air is exhausted into the room or vented outside 3.3 condenser tumble dryer tumble dryer in which the air used for the drying process is dehumidified by cooling NOTE Combinations of the above-mentioned types are possible.
37、3.4 automatic tumble dryer tumble dryer which switches off the drying process when a certain moisture content of the load is reached NOTE This may include conductivity or temperature sensing 7 BS EN 61121:2005 3.5 non-automatic tumble dryer tumble dryer which does not switch off the drying process w
38、hen a certain moisture content of the load is reached, usually controlled by a timer, but may also be manually controlled 3.6 pre-treatment successive washing, rinsing, spinning and drying of a new test load prior to its first use to avoid rapid changes of characteristics during the tests 3.7 normal
39、isation successive washing, rinsing, spinning and drying of a test load after a pre-determined number of cycles to bring the test load to a normal state 3.8 conditioning treatment of test load to assure homogenous condition 3.9 programme series of operations which are pre-defined and which are decla
40、red as suitable for drying certain types of textiles 3.10 cycle complete drying process, as defined by the programme selected, consisting of a series of different operations (heat, cool down etc.) 3.11 rated capacity mass in kg of dry textiles of a particular defined type, which the manufacturer dec
41、lares can be treated in a specific programme 3.12 List of symbols f actual final moisture content of the test load (%) f0 nominal final moisture content (%) given in table 3, without tolerances fi actual final moisture content of the test load after the i:th cycle (%) fj actual final moisture conten
42、t of the j:th individual piece of textile in a cycle (%) i actual initial moisture content (%) j arithmetic average of (f, j) for all individual load items i0 nominal initial moisture content (%) given in table 2, without tolerances arithmetical average of f for all i cycles C condensation efficienc
43、y (%) Em measured energy consumption kWh E corrected energy consumption kWh Lm measured water consumption (l) L corrected water consumption (l) n number of cycles sb standard deviation as a measure of the variability between cycles in one test series Sw average drying evenness swr standard deviation
44、 for the evenness of drying within a load W rated capacity for the programme (g) W0 conditioned mass of the test load (g) Wf mass of the test load after drying, “the final mass“ BS EN 61121:2005 8 Wi mass of the test load after wetting (but before drying), “the initial mass“ Ww mass of the condensed
45、 water tm measured programme time t corrected programme time 4 Dimensions Height a1 = vertical dimension measured from the lower edge (on the floor) to the upper edge of the top, with the door closed. If adjustable levelling feet are provided, they shall be moved up and down to determine minimum and
46、 maximum possible heights. Height a2 = maximum vertical dimension measured from the lower edge (on the floor) to a horizontal plane at the maximum height of the tumble dryer with the door open. If adjustable levelling feet are provided, they shall be moved up and down to determine minimum and maximu
47、m possible heights. Width b = horizontal dimension, between the sides, as measured between two parallel vertical planes against the sides of the tumble dryer, including all projections. Depth c1 = horizontal dimension as measured from a vertical rear plane against the tumble dryer and the most promi
48、nent part of the front, knobs and handles not being taken into account, with the door closed. Depth c2 = horizontal dimension as measured from a vertical rear plane against the tumble dryer and the most prominent part of the front knobs and handles not being taken into account, with the door open. D
49、rum volume = the volume of the drum in which textiles are placed, determined as the inside volume of the drum, in litres, after subtraction of ribs or other inward protrusions, etc. 5 Rated capacity The rated capacity for measurements to determine values to be declared for the dry cotton cycle according to the Commissions Directive in Clause 1, is the value declare