1、BRITISH STANDARDBS EN 60335-2-90:2006+A1:2010 Household and similar electrical appliances Safety Part 2-90: Particular requirements for commercial microwave ovensICS 97.040.20g49g50g3g38g50g51g60g44g49g42g3g58g44g55g43g50g56g55g3g37g54g44g3g51g40g53g48g44g54g54g44g50g49g3g40g59g38g40g51g55g3g36g54g3
2、g51g40g53g48g44g55g55g40g39g3g37g60g3g38g50g51g60g53g44g42g43g55g3g47g36g58National forewordThis British Standard is the UK implementation of EN 60335-2-90:2006+A1:2010. It is identical with IEC 60335-2-90:2006, incorporating amendment 1:2010. It supersedes BS EN 60335-2-90:2006 which will be withdr
3、awn on 1 September 2013.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 of the IEC amendment. For example, text altered by IEC amendment 1 is indicated by !“.The UK participation in its preparation
4、 was entrusted by Technical Committee CPL/61, Safety of household electrical appliances, to Subcommittee CPL/61/07, Heated appliance group.A list of organizations represented on this subcommittee can be obtained on request to its secretary.This publication does not purport to include all the necessa
5、ry provisions of a contract. Users are responsible for its correct application.Compliance with a British Standard cannot confer immunity from legal obligations.BS EN 60335-2-90:2006+A1:2010This British Standard was published under the authority of the Standards Policy and Strategy Committee on 30 Ju
6、ne 2006 BSI 2011Amendments/corrigenda issued since publicationAmd. No. Date Comments 31 January2011Implementation of IEC amendment 1:2010 and its CENELEC endorsement A1:2010ISBN 978 0 580 64201 2EUROPEAN STANDARD EN 60335-2-90:2006+A1 NORME EUROPENNE EUROPISCHE NORM September 2010CENELEC European Co
7、mmittee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische Normung Central Secretariat: rue de Stassart 35, B - 1050 Brussels 2006 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENEL
8、EC members. Ref. No. EN 60335-2-90:2006 E ICS 97.040.20 Supersedes EN 60335-2-90:2002 + A1:2003English version Household and similar electrical appliances Safety Part 2-90: Particular requirements for commercial microwave ovens (IEC 60335-2-90:2006) Appareils lectrodomestiques et analogues Scurit Pa
9、rtie 2-90: Rgles particulires pour les fours micro-ondes usage commercial (CEI 60335-2-90:2006) Sicherheit elektrischer Gerte fr den Hausgebrauch und hnliche Zwecke Teil 2-90: Besondere Anforderungen fr gewerbliche Mikrowellenkochgerte (IEC 60335-2-90:2006) This European Standard was approved by CEN
10、ELEC on 2006-03-01. 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 standa
11、rds 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 notif
12、ied to the Central Secretariat has the same status as the official versions. CENELEC members are the national electrotechnical committees of Austria, Belgium, Cyprus, the Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembou
13、rg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. Foreword The text of document 61B/306/FDIS, future edition 3 of IEC 60335-2-90, prepared by SC 61B of the IEC Technical Committee 61, was submitted to the IEC-CENELEC
14、 parallel vote and was approved by CENELEC as EN 60335-2-90 on 2006-03-01. This European Standard replaces EN 60335-2-90:2002 + A1:2003. Changes compared to EN 60335-2-90:2002 concern requirements for microwave ovens without a cavity door and with transportation means that are intended for commercia
15、l use only for the heating of food and beverages. The following dates are applicable: - latest date by which the EN has to be implemented at national level by publication of an identical national standard or by endorsement (dop) 2006-12-01 - date on which national standards conflicting with the EN h
16、ave to be withdrawn (dow) 2009-03-01 This part 2 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 1 have also to be ta
17、ken into account and the dates when such changes become applicable will be stated in the relevant amendment or revision of Part 1. This part 2 supplements or modifies the corresponding clauses of EN 60335-1, so as to convert it into the European Standard: Safety requirements for commercial microwave
18、 ovens. When a particular subclause of Part 1 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 1 is to be adapted accordingly. NOTE 1 The following numbering system is use
19、d: - 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, B
20、B, etc.; - subclauses, notes and annexes that are additional to those in the IEC standard are prefixed with the letter Z. NOTE 2 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 defin
21、ed in Clause 3. 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 Eur
22、opean 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 60335-2-90:2006+A1:2010EN 60335-2-90:2006+A1:2010 (E) 2 Foreword to amendment A1The text of document 61B/416/FDIS, fu
23、ture amendment 1 to IEC 60335-2-90:2006, prepared by SC 61B of the IEC Technical Committee 61, Safety of household and similar electrical appliances, was submitted to the IEC-CENELEC parallel vote and was approved by CENELEC as amendment A1 to EN 60335-2-90:2006 on 2010-09-01. Attention is drawn to
24、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 are applicable: - latest date by which the amendment has to be implemented at national leve
25、l by publication of an identical national standard or by endorsement (dop) 2011-06-01 - date on which national standards conflicting with the amendment have to be withdrawn (dow) 2013-09-01 This amendment supplements or modifies the corresponding clauses of EN 60335-2-90:2006. There are no special n
26、ational conditions causing a deviation from this amendment. There are no national deviations from this amendment. _ Endorsement notice The text of amendment 1:2010 to the International Standard IEC 60335-2-90:2006 was approved by CENELEC as an amendment to the European Standard without any modificat
27、ion. _ BS EN 60335-2-90:2006+A1:2010EN 60335-2-90:2006+A1:2010 (E) 3 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, 73/23/EEC. For products having mechanical moving parts,
28、a risk assessment in accordance with the Machinery Directive, 98/37/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 wit
29、h the principal objectives of the Low Voltage Directive. _ Endorsement notice The text of the International Standard IEC 60335-2-90:2006 was approved by CENELEC as a European Standard without any modification. _ BS EN 60335-2-90:2006+A1:2010EN 60335-2-90:2006+A1:2010 (E) 4 CONTENTS INTRODUCTION 7 1
30、Scope 9 2 Normative references 10 3 Definitions.10 4 General requirement.13 5 General conditions for the tests 13 6 Classification13 7 Marking and instructions.14 8 Protection against access to live parts 15 9 Starting of motor-operated appliances 15 10 Power input and current .15 11 Heating 15 12 V
31、oid .16 13 Leakage current and electric strength at operating temperature 16 14 Transient overvoltages .16 15 Moisture resistance 16 16 Leakage current and electric strength .17 17 Overload protection of transformers and associated circuits17 18 Endurance18 19 Abnormal operation 18 20 Stability and
32、mechanical hazards20 21 Mechanical strength .20 22 Construction.22 23 Internal wiring 27 24 Components.27 25 Supply connection and external flexible cords.27 26 Terminals for external conductors.28 27 Provision for earthing .28 28 Screws and connections.28 29 Clearances, creepage distances and solid
33、 insulation 28 30 Resistance to heat and fire.29 31 Resistance to rusting29 32 Radiation, toxicity and similar hazards 29 Annex AA (normative) Combination microwave ovens .30 Annex BB (normative) Requirements for commercial microwave ovens without a cavity door and with conveyor-type means32 BS EN 6
34、0335-2-90:2006+A1:2010EN 60335-2-90:2006+A1:2010 (E) 5 Annex CC (informative) Overview of the requirements for covers, means of access and similar46 Annex DD (informative) Rationales for the microwave barrier and associated leakage tests.47 Bibliography .56 Figure 101 Test rod for interlock concealm
35、ent29 Figure BB.1 Splash apparatus43 Figure BB.2 Arrangement for measurement of microwave leakage from access openings 44 Figure BB.3 Examples of Definitions of clause 3 and clause BB.3.45 Table 101 Number of potatoes .19 Table BB.101 Specifications for microwave barriers .39 BS EN 60335-2-90:2006+A
36、1:2010EN 60335-2-90:2006+A1:2010 (E) 6 Annex EE (normative) Microwave ovens intended to be used on board ships.54 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
37、 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 manufacturers instructions. It also covers abnormal situations that can be expected i
38、n 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 supp
39、ly 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 2 of IEC 60335, the relevant part 2 is applied to each function separately, as far as is reasonable. If applicable, the influence of one
40、 function on the other is taken into account. 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 which impair the level of safety covered by
41、 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 wi
42、th the standard. When a part 2 standard does not include additional requirements to cover hazards dealt with in Part 1, Part 1 applies. NOTE 1 This means that the technical committees responsible for the part 2 standards have determined that it is not necessary to specify particular requirements for
43、 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 2 Horizontal and generic standards covering a hazard are not
44、 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
45、not applicable in addition to Part 1 or part 2 standards. !“BS EN 60335-2-90:2006+A1:2010EN 60335-2-90:2006+A1:2010 (E) 7 This page deliberately set blank HOUSEHOLD AND SIMILAR ELECTRICAL APPLIANCES SAFETY Part 2-90: Particular requirements for commercial microwave ovens 1 Scope This clause of Part
46、1 is replaced by the following. This International Standard deals with: the safety of microwave ovens with a cavity door intended for commercial use, their rated voltage being not more than 250 V for single-phase appliances connected between one phase and neutral and 480 V for other appliances. the
47、safety of combination microwave ovens with a cavity door, the requirements for which are contained in Annex AA. the safety of microwave ovens without a cavity door and with transportation means that are intended for commercial use only, for the heating of food and beverages, the requirements for whi
48、ch are contained in Annex BB Microwave ovens, covered by annex BB, have transportation means for moving the microwave load through the microwave oven. Requirements for tunnel microwave ovens and several types of microwave vending machines are covered. NOTE 101 In annex BB a microwave oven without a
49、cavity door and with transportation means is described as a microwave oven. All clauses of this standard apply to these appliances unless otherwise specified in Annex BB. This international standard also takes into account ordinary persons having access to the removing area of the vending machine. NOTE 102 The appliance may be built into a vending machine, in which case IEC 60335-2-75 may also be applicable. NOTE 103 Appliances that use non-electrical energy are withi
