Bsi bs en 60335 2 24 2010

BS EN 60335-2-24:2010 Incorporating corrigendum November 2010 BSI Standards Publication Household and similar electrical appliances — Safety Part 2-24: Particular requirements for refrigerating appliances, ice-cream appliances and ice makers NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW raising standards worldwide™ BRITISH STANDARD BS EN 60335-2-24:2010 National foreword This British Standard is the UK implementation of EN 60335-2-24:2010 It is identical to IEC 60335-2-24:2010 It supersedes BS EN 60335-2-24:2003+A2:2007 which will be withdrawn on March 2015 The UK participation in its preparation was entrusted by Technical Committee CPL/61, Safety of household and similar electrical appliances, to Subcommittee CPL/61/3, Refrigerators and food freezers A list of organizations represented on this 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 © BSI 2010 ISBN 978 580 73179 ICS 97.040.30 Compliance with a British Standard cannot confer immunity from legal obligations This British Standard was published under the authority of the Standards Policy and Strategy Committee on 31 July 2010 Amendments/corrigenda issued since publication Date Text affected December 2010 Correction to supersession details in national foreword EUROPEAN STANDARD EN 60335-2-24 NORME EUROPÉENNE April 2010 EUROPÄISCHE NORM ICS 97.040.30 Supersedes EN 60335-2-24:2003 + A1:2005 + A2:2007 + A11:2004 + A12:2009 English version Household and similar electrical appliances Safety Part 2-24: Particular requirements for refrigerating appliances, ice-cream appliances and ice makers (IEC 60335-2-24:2010) Appareils électrodomestiques et analogues Sécurité Partie 2-24: Règles particulières pour les appareils de réfrigération, les sorbetières et les fabriques de glace (CEI 60335-2-24:2010) Sicherheit elektrischer Geräte für den Hausgebrauch und ähnliche Zwecke Teil 2-24: Besondere Anforderungen für Kühl-/Gefriergeräte und Speiseeis- und Eisbereiter (IEC 60335-2-24:2010) This European Standard was approved by CENELEC on 2010-03-01 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 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, Bulgaria, Croatia, Cyprus, the Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom CENELEC European Committee for Electrotechnical Standardization Comité Européen de Normalisation Electrotechnique Europäisches Komitee für Elektrotechnische Normung Central Secretariat: Avenue Marnix 17, B - 1000 Brussels © 2010 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members Ref No EN 60335-2-24:2010 E BS EN 60335-2-24:2010 EN 60335-2-24:2010 (E) –2– Foreword The text of document 61C/459/FDIS, future edition of IEC 60335-2-24, prepared by SC 61C, Household appliances for refrigeration, of IEC TC 61, Safety of household and similar electrical appliances, was submitted to the IEC-CENELEC parallel vote and was approved by CENELEC as EN 60335-2-24 on 2010-03-01 This European Standard supersedes EN 60335-2-24:2003 + A1:2005 + A2:2007 + A11:2004 + A12:2009 The principal changes in this edition as compared with EN 60335-2-24:2003 are as follows (minor changes are not listed): − aligns the text with EN 60335-1, and its Amendments 1, 2, 11, 12 and 13; − clarifies the term “household and similar use” (1, 7.12); − updates marking requirements for supply terminals of battery operated appliances (7.6, 7.101); − introduces requirements for appliances using transcritical refrigerant systems (3.112, 3.113, 3.114, 3.115, 3.116, 7.1, 7.6, 7.12.1, 22.103, 24.1.4, 24.102); − introduces an enhanced flexing test (23.3); − introduces requirements for accessible glass panels (22.116); − clarifies tests for appliances using flammable refrigerants (22.107, Annex DD) Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights CEN and CENELEC shall not be held responsible for identifying any or all such patent rights 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) 2010-12-01 date on which national standards conflicting with the EN have to be withdrawn (dow) 2015-03-01 This Part has to be used in conjunction with EN 60335-1, Household and similar electrical appliances – Safety – Part 1: General requirements It was established on the basis of the 2002 edition of that standard Amendments and revisions of Part have also to be taken into account and the dates when such changes become applicable will be stated in the relevant amendment or revision of Part This Part supplements or modifies the corresponding clauses of EN 60335-1, so as to convert it into the European Standard: Household and similar electrical appliances - Safety - Part 2-24: Particular requirements for refrigerating appliances, ice-cream appliances and ice makers When a particular subclause of Part is not mentioned in this Part 2, that subclause applies as far as is reasonable When this standard states "addition", "modification" or "replacement", the relevant text of Part is to be adapted accordingly NOTE The following numbering system is used: – subclauses, tables and figures that are numbered starting from 101 are additional to those in Part 1; – unless notes are in a new subclause or involve notes in Part 1, they are numbered starting from 101, including those in a replaced clause or subclause; – additional annexes are lettered AA, BB, etc.; – subclauses, notes and annexes that are additional to those in the IEC standard are prefixed with the letter Z –3– NOTE BS EN 60335-2-24:2010 EN 60335-2-24:2010 (E) The following print types are used: – requirements: in roman type; – test specifications: in italic type; – notes: in small roman type Words in bold in the text are defined in Clause When a definition concerns an adjective, the adjective and the associated noun are also in bold There are no special national conditions causing a deviation from this European Standard, other than those listed in Annex ZA to EN 60335-1 There are no national deviations from this European Standard, other than those listed in Annex ZB to EN 60335-1 p NOTE In this document, p is used in the margin to indicate instructions for preparing the printed version _ BS EN 60335-2-24:2010 EN 60335-2-24:2010 (E) –4– Introduction p Add: An investigation by CENELEC TC 61 has shown that all risks from products within the scope of this standard are fully covered by the Low Voltage Directive, 2006/95/EC For products having mechanical moving parts, a risk assessment in accordance with the Machinery Directive, 2006/42/EC, has shown that the risks are mainly of electrical origin and consequently this directive is not applicable However, the relevant essential safety requirements of the Machinery Directive are covered by this standard together with the principal objectives of the Low Voltage Directive Endorsement notice The text of the International Standard IEC 60335-2-24:2010 was approved by CENELEC as a European Standard without any modification Bibliography p Add the following notes to the standards mentioned: IEC 60079 series NOTE Harmonized in EN 60079 series (partially modified) IEC 60335-2-75 NOTE Harmonized as EN 60335-2-75 IEC 60335-2-89 NOTE Harmonized as EN 60335-2-89 ISO 13732-1 NOTE Harmonized as EN ISO 13732-1 –5– BS EN 60335-2-24:2010 EN 60335-2-24:2010 (E) p Add: Annex ZC (normative) Normative references to international publications with their corresponding European publications Publication Year Title EN/HD Year IEC 60068-2-11 - Environmental testing Part 2: Tests - Test Ka: Salt mist EN 60068-2-11 - IEC 60079-4A 1) - Electrical apparatus for explosive gas atmospheres – Part 4: Method of test for ignition temperature - First supplement to IEC 60079-4:1966 IEC 60079-15 2005 Electrical apparatus for explosive gas atmospheres Part 15: Construction, test and marking of type of protection "n" electrical apparatus EN 60079-15 2005 IEC/TR 60079-20 - Electrical apparatus for explosive gas atmospheres Part 20: Data for flammable gases and vapours, relating to the use of electrical apparatus - - IEC 60335-2-5 (mod) 2002 Household and similar electrical appliances - EN 60335-2-5 + A11 Safety Part 2-5: Particular requirements for dishwashers 2003 2009 IEC 60335-2-34 + A1 + A2 2002 2004 2008 Household and similar electrical appliances Safety Part 2-34: Particular requirements for motorcompressors EN 60335-2-34 + A1 + A2 + A11 2002 2005 2009 2004 ISO 209 - Aluminium and aluminium alloys - Chemical composition - - ISO 817 - Organic refrigerants - Number designation - - ISO 4126-2 2003 Safety devices for protection against excessive pressure Part 2: Bursting disc safety devices - - ISO 5149 1993 Mechanical refrigerating systems used for cooling and heating - Safety requirements - - 1) IEC 60079-4A is superseded by IEC 60079-20-1:2010 - BS EN 60335-2-24:2010 EN 60335-2-24:2010 (E) –6– CONTENTS INTRODUCTION Scope .9 Normative references .10 Definitions 11 General requirement 13 General conditions for the tests 13 Classification 15 Marking and instructions 15 Protection against access to live parts 19 Starting of motor-operated appliances 19 10 Power input and current 19 11 Heating 20 12 Void 23 13 Leakage current and electric strength at operating temperature 23 14 Transient overvoltages 24 15 Moisture resistance 24 16 Leakage current and electric strength 25 17 Overload protection of transformers and associated circuits 26 18 Endurance 26 19 Abnormal operation 26 20 Stability and mechanical hazards 28 21 Mechanical strength .30 22 Construction 31 23 Internal wiring 40 24 Components 41 25 Supply connection and external flexible cords 42 26 Terminals for external conductors 43 27 Provision for earthing 43 28 Screws and connections 44 29 Clearances, creepage distances and solid insulation 44 30 Resistance to heat and fire 44 31 Resistance to rusting 45 32 Radiation, toxicity and similar hazards 45 Annexes 48 Annex C (normative) Ageing test on motors 48 Annex D (normative) Thermal motor protectors 48 Annex P (informative) Guidance for the application of this standard to appliances used in warm damp equable climates 48 Annex AA (normative) Locked-rotor test of fan motors 49 Annex BB (informative) Method for accumulation of frost 51 Annex CC (normative) Non-sparking “n” electrical apparatus 54 –7– BS EN 60335-2-24:2010 EN 60335-2-24:2010 (E) Annex DD (informative) Sound manufacturing practice for compression-type appliances which use flammable refrigerant 56 Bibliography 57 Figure 101 – Apparatus for spillage test 46 Figure 102 – Detail of scratching tool tip 47 Figure AA.1 – Supply circuit for locked-rotor test of a single-phase fan motor .50 Figure BB.1 – Diagram of apparatus for water evaporation for accumulation of frost 52 Figure BB.2 – Apparatus for water evaporation and for accumulation of frost 53 Table 101 – Maximum temperatures for motor-compressors 22 Table 102 – Refrigerant flammability parameters 38 BS EN 60335-2-24:2010 EN 60335-2-24:2010 (E) –8– INTRODUCTION It has been assumed in the drafting of this international standard that the execution of its provisions is entrusted to appropriately qualified and experienced persons This standard recognizes the internationally accepted level of protection against hazards such as electrical, mechanical, thermal, fire and radiation of appliances when operated as in normal use taking into account the manufacturer's instructions It also covers abnormal situations that can be expected in practice and takes into account the way in which electromagnetic phenomena can affect the safe operation of appliances This standard takes into account the requirements of IEC 60364 as far as possible so that there is compatibility with the wiring rules when the appliance is connected to the supply mains However, national wiring rules may differ If an appliance within the scope of this standard also incorporates functions that are covered by another part of IEC 60335, the relevant part is applied to each function separately, as far as is reasonable If applicable, the influence of one function on the other is taken into account When a part standard does not include additional requirements to cover hazards dealt with in Part 1, Part applies NOTE This means that the technical committees responsible for the part standards have determined that it is not necessary to specify particular requirements for the appliance in question over and above the general requirements This standard is a product family standard dealing with the safety of appliances and takes precedence over horizontal and generic standards covering the same subject NOTE Horizontal and generic standards covering a hazard are not applicable since they have been taken into consideration when developing the general and particular requirements for the IEC 60335 series of standards For example, in the case of temperature requirements for surfaces on many appliances, generic standards, such as ISO 13732-1 for hot surfaces, are not applicable in addition to Part or part standards An appliance that complies with the text of this standard will not necessarily be considered to comply with the safety principles of the standard if, when examined and tested, it is found to have other features that impair the level of safety covered by these requirements An appliance employing materials or having forms of construction differing from those detailed in the requirements of this standard may be examined and tested according to the intent of the requirements and, if found to be substantially equivalent, may be considered to comply with the standard BS EN 60335-2-24:2010 EN 60335-2-24:2010 (E) – 46 – A B C 70 30 30 60 30 125 IEC 309/10 Dimensions in millimetres Key A Displacement block B Release pin C Removable bridge support This displacement block has a volume of 140 ml ± ml and a mass of 200 g ± 10 g Its dimensions are approximately 112 mm × 50 mm × 25 mm The dimensions of the vessel are inside dimensions and the tolerance is ±2 Figure 101 – Apparatus for spillage test BS EN 60335-2-24:2010 EN 60335-2-24:2010 (E) 8,6 20 – 47 – 75° A 2° R1,0 ± 0,1 2° 6 B IEC 310/10 Dimensions in millimetres Key A Hard-soldered carbide tip K10 B Direction of movement Figure 102 – Detail of scratching tool tip BS EN 60335-2-24:2010 EN 60335-2-24:2010 (E) – 48 – Annexes The annexes of Part are applicable except as follows Annex C (normative) Ageing test on motors Addition: This annex does not apply to motor-compressors Annex D (normative) Thermal motor protectors Addition: This annex does not apply to motor-compressors or condenser fan motors Annex P (informative) Guidance for the application of this standard to appliances used in warm damp equable climates This annex of Part is applicable except as follows General conditions for the tests 5.7 Modification: The ambient temperature of the tests of Clause 10, 11 and 13 is 43 °C ± 1°C as specified for appliances of tropical (T) class in Subclause 5.7 11 Heating 11.8 Modification: The values of Table are reduced by 18 K – 49 – BS EN 60335-2-24:2010 EN 60335-2-24:2010 (E) Annex AA (normative) Locked-rotor test of fan motors The winding of a fan motor shall not reach excessive temperatures if the motor locks or fails to start Compliance is checked by the following test The fan and its motor are mounted on wood or similar material The motor rotor is locked Fan blades and motor brackets are not removed The motor is supplied at rated voltage The supply circuit is given in Figure AA.1 The assembly is to operate under these conditions for 15 days (360 h) unless the protective device, if any, permanently opens the circuit prior to the expiration of that time In this case, the test is discontinued If the temperature of the motor windings stays lower than 90 °C, the test is discontinued when steady conditions are established Temperatures are measured under conditions specified in 11.3 During the test, the winding temperatures shall not exceed the values given in Table 72 h after the beginning of the test, the motor shall withstand the electric strength test of 16.3 A residual current device with a rated residual current of 30 mA is connected so as to disconnect the supply in the event of an excessive earth leakage current At the end of the test, the leakage current is measured between the windings and the body at a voltage equal to twice the rated voltage Its value shall not exceed mA BS EN 60335-2-24:2010 EN 60335-2-24:2010 (E) – 50 – P S M H R IEC 311/10 Key S Supply source H Housing R Residual current device (I Δn = 30 mA) P Thermal motor-protector (external or internal), if fitted M Motor NOTE The circuit is modified for three-phase fan motors NOTE Care has to be taken to complete the earthing system to permit the correct operation of the residual current device (RCCB/RCBO) Figure AA.1 – Supply circuit for locked-rotor test of a single-phase fan motor – 51 – BS EN 60335-2-24:2010 EN 60335-2-24:2010 (E) Annex BB (informative) Method for accumulation of frost The accumulation of frost may be produced by the use of a device having a controllable heat source directed on a measured amount of water for the purpose of evaporating this water over a predetermined period with a minimum of extraneous heat loss to the cabinet of the refrigerating appliance A convenient form of the apparatus would comprise a block enclosure of thermally insulating material having a vertical hole at its centre containing a lamp mounted on a bottom plug directly below an evaporating dish with a high thermal conductivity base and low thermal conductivity walls (see Figures BB.1 and BB.2) The device described above should be mounted at the geometric centre of the cabinet of the refrigerating appliance and the electrical connection brought conveniently to the outside so that the voltage applied may be varied and the power input measured with the door of the refrigerating appliance in the closed position Water is then introduced into the evaporating dish at the required rate through a length of small bore tube passing into the cabinet A continuous flow is not necessary but the water should be injected at appropriate intervals Provision should be made (for example in the control of the supply of electrical energy to the device) to ensure that the evaporation of water under normal conditions of use is capable of being maintained at a rate equal to g of water per litre of gross cabinet volume per week The electrical energy to the device should not be excessive, but shall be sufficient to ensure the complete evaporation of the water The amount of frost to be accumulated prior to the start of the defrosting test should be based on this rate and on the time interval between two successive defrosts in accordance with the instructions NOTE For example, if the instructions recommend defrosting twice weekly, then a refrigerating appliance with a cabinet gross volume of 140 l will require: g × 140 / = 140 g of water The above rate may be exceeded in certain circumstances The apparatus described has a maximum evaporation rate of approximately g/h when operating with an input of W and with the water to be evaporated entering at cabinet temperature BS EN 60335-2-24:2010 EN 60335-2-24:2010 (E) – 52 – ∅70 ∅60 55 A 40 145 ∅37 B C 1,5 D IEC 2258/02 Dimensions in millimetres Key A Insulating material B Copper plate C Copper tube D Thermal insulating foam Figure BB.1 – Diagram of apparatus for water evaporation for accumulation of frost – 53 – BS EN 60335-2-24:2010 EN 60335-2-24:2010 (E) Figure BB.2 – Apparatus for water evaporation and for accumulation of frost BS EN 60335-2-24:2010 EN 60335-2-24:2010 (E) – 54 – Annex CC (normative) Non-sparking “n” electrical apparatus Where reference is made to IEC 60079-15, the following clauses are applicable as modified below 21 Supplementary requirements for non-sparking luminaires All of the subclauses of Clause 21 are applicable, except 21.2.5.1, 21.2.5.5, 21.2.7, 21.2.8, 21.2.9, 21.2.10, 21.2.11, 21.2.12 and 21.3 26 General supplementary requirements for apparatus producing arcs, sparks or hot surfaces Clause 26 is applicable 27 Supplementary requirements for enclosed-break devices and non-incendive components producing arcs, sparks or hot surfaces Clause 27 is applicable 28 Supplementary requirements for hermetically sealed devices producing arcs, sparks or hot surfaces Clause 28 is applicable 29 Supplementary requirements for sealed devices or encapsulated devices producing arcs, sparks or hot surfaces All of the subclauses of Clause 29 are applicable, except 29.1 and 29.8, which are replaced by the following 29.1 Non-metallic materials Seals are tested using 33.5 However if the device is tested in the appliance, then 33.5.1 and 33.5.2 are not applicable However, after the tests of Clause 19 in IEC 60335-2-24, by inspection, no damage of the encapsulation that could impair the type of protection shall be evident, such as cracks in the resin or exposure of encapsulated parts 29.8 Type tests The type tests described in 33.5 shall be performed where relevant 30 Supplementary requirements for energy-limited apparatus and circuits producing arcs, sparks or hot surfaces All of the subclauses of Clause 30 are applicable, except 30.5, 30.6 and 30.10 – 55 – BS EN 60335-2-24:2010 EN 60335-2-24:2010 (E) 31 Supplementary requirements for restricted-breathing enclosures protecting apparatus producing arcs, sparks or hot surfaces All of the subclauses of Clause 31 are applicable, except 31.6, which is replaced by the following 31.6 Maintenance considerations Restricted-breathing enclosures shall be type tested, including the cable entry devices BS EN 60335-2-24:2010 EN 60335-2-24:2010 (E) – 56 – Annex DD (informative) Sound manufacturing practice for compression-type appliances which use flammable refrigerant For compression-type appliances which use flammable refrigerant in their cooling system the following recommendations are made concerning the manufacturing process All cooling circuits which are embedded in thermal insulation should be subject to a leak test prior to being embedded Prior to foaming there should be an inspection to ensure that there is no damage to the parts that are protected against corrosion or to the means provided for the prevention of galvanic coupling between copper and unprotected aluminium pipes – 57 – BS EN 60335-2-24:2010 EN 60335-2-24:2010 (E) Bibliography The bibliography of Part is applicable, except as follows Addition IEC 60079 (all parts), Explosive atmospheres IEC 60335-2-75, Household and similar electrical appliances – Safety – Part 2-75: Particular requirements for commercial dispensing appliances and vending machines IEC 60335-2-89, Household and similar electrical appliances – Safety – Part 2-89: Particular requirements for commercial refrigerating appliances with an incorporated or remote refrigerant condensing unit or compressor IEC 62552, Household refrigerating appliances – Characteristics and test methods ISO 3864-1, Graphical symbols – Safety colours and safety signs – Part 1: Design principles for safety signs in workplaces and public areas ISO 13732-1, Ergonomics of the thermal environment – Methods for the assessment of human responses to contact with surfaces – Part 1: Hot surfaces –––––––––– This page deliberately left blank This page deliberately left blank British Standards Institution (BSI) BSI is the independent national body responsible for preparing British Standards and other standards-related publications, information and services It presents the UK view on standards in Europe and at the international level It is incorporated by Royal Charter Revisions Information on standards British Standards are updated by amendment or revision Users of British Standards should make sure that they possess the latest amendments or editions It 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