1、BSI Standards PublicationSafety requirements for electrical equipment for measurement, control and laboratory usePart 2-051: Particular requirements for laboratory equipment for mixing and stirringBS EN 61010-2-051:2015National forewordThis British Standard is the UK implementation of EN 61010-2-051
2、:2015. It is identical to IEC 61010-2-051:2015. It supersedes BS EN 61010-2-051:2003which will be withdrawn on 14 April 2018.The UK participation in its preparation was entrusted to TechnicalCommittee EPL/66, Safety of measuring, control and laboratory equipment.A list of organizations represented o
3、n this committee can be obtained onrequest to its secretary.This publication does not purport to include all the necessary provisions ofa contract. Users are responsible for its correct application. The British Standards Institution 2015.Published by BSI Standards Limited 2015ISBN 978 0 580 79879 5I
4、CS 19.080; 71.040.20Compliance with a British Standard cannot confer immunity fromlegal obligations.This British Standard was published under the authority of theStandards Policy and Strategy Committee on 31 May 2015.Amendments/corrigenda issued since publicationDate Text affectedBRITISH STANDARDBS
5、EN 61010-2-051:2015EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 61010-2-051 April 2015 ICS 19.080; 71.040.20 Supersedes EN 61010-2-051:2003 English Version Safety requirements for electrical equipment for measurement, control and laboratory use - Part 2-051: Particular requirements for labor
6、atory equipment for mixing and stirring (IEC 61010-2-051:2015) Rgles de scurit pour appareils lectriques de mesurage, de rgulation et de laboratoire - Partie 2-051: Exigences particulires pour appareils de laboratoire utiliss pour mixer et agiter (IEC 61010-2-051:2015) Sicherheitsbestimmungen fr ele
7、ktrische Mess-, Steuer-, Regel- und Laborgerte - Teil 2-051: Besondere Anforderungen an Laborgerte zum Mischen und Rhren (IEC 61010-2-051:2015) This European Standard was approved by CENELEC on 2015-04-14. CENELEC members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate
8、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 CEN-CENELEC Management Centre or to any CENELEC member. This European St
9、andard 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 CEN-CENELEC Management Centre has the same status as the official versions. CENELEC members a
10、re the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus, the Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway,
11、Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. European Committee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische Normung CEN-CENELEC Management Centre: Avenue Mar
12、nix 17, B-1000 Brussels 2015 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members. Ref. No. EN 61010-2-051:2015 E BS EN 61010-2-051:2015EN 61010-2-051:2015 - 2 - Foreword The text of document 66/552/FDIS, future edition 3 of IEC 61010-2-051, prepared
13、 by IEC/TC 66 “Safety of measuring, control and laboratory equipment“ was submitted to the IEC-CENELEC parallel vote and approved by CENELEC as EN 61010-2-051:2015. The following dates are fixed: latest date by which the document has to be implemented at national level by publication of an identical
14、 national standard or by endorsement (dop) 2016-01-14 latest date by which the national standards conflicting with the document have to be withdrawn (dow) 2018-04-14 This document supersedes EN 61010-2-051:2003. Attention is drawn to the possibility that some of the elements of this document may be
15、the subject of patent rights. CENELEC and/or CEN shall not be held responsible for identifying any or all such patent rights. This standard covers the Principle Elements of the Safety Objectives for Electrical Equipment Designed for Use within Certain Voltage Limits (LVD - 2006/95/EC). Endorsement n
16、otice The text of the International Standard IEC 61010-2-051:2015 was approved by CENELEC as a European Standard without any modification. In the official version, for Bibliography, the following note has to be added for the standard indicated: The Bibliography of Part 1 is applicable, except as fol
17、lows: IEC 60079 (series) NOTE Harmonized as EN 60079 (series). IEC 61010-2-010 NOTE Harmonized as EN 61010-2-010. BS EN 61010-2-051:2015- 3 - EN 61010-2-051:2015 Annex ZA (normative) Normative references to international publications with their corresponding European publications The following docum
18、ents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. NOTE 1 When an Internation
19、al Publication has been modified by common modifications, indicated by (mod), the relevant EN/HD applies. NOTE 2 Up-to-date information on the latest versions of the European Standards listed in this annex is available here: www.cenelec.eu. Annex ZA of Part 1 applies. Addition Publication Year Title
20、 EN/HD Year IEC 62061 - Safety of machinery - Functional safety of safety-related electrical, electronic and programmable electronic control systems EN 62061 - - - +corrigendum Feb. - ISO 13849 series Safety of machinery - Safety-related parts of control systems EN ISO 13849 series BS EN 61010-2-051
21、:2015 2 IEC 61010-2-051:2015 IEC 2015 CONTENTS 1 Scope and object . 5 2 Normative references 5 3 Terms and definitions 5 4 Tests . 5 5 Marking and documentation . 5 6 Protection against electric shock . 6 7 Protection against mechanical HAZARDS . 6 8 Resistance to mechanical stresses 7 9 Protection
22、against the spread of fire 8 10 Equipment temperature limits and resistance to heat . 8 11 Protection against HAZARDS from fluids 8 12 Protection against radiation, including laser sources, and against sonic and ultrasonic pressure 8 13 Protection against liberated gases and substances, explosion an
23、d implosion 8 14 Components and subassemblies . 8 15 Protection by interlocks . 8 16 HAZARDS resulting from application 9 17 RISK Assessment . 9 Annexes . 10 Bibliography 10 BS EN 61010-2-051:2015IEC 61010-2-051:2015 IEC 2015 5 SAFETY REQUIREMENTS FOR ELECTRICAL EQUIPMENT FOR MEASUREMENT, CONTROL, A
24、ND LABORATORY USE Part 2-051: Particular requirements for laboratory equipment for mixing and stirring 1 Scope and object This clause of Part 1 is applicable except as follows: 1.1 Scope Replacement: Replace the text in 1,1 by the following paragraph: This part of IEC 61010 is applicable to electric
25、ally operated laboratory equipment and its accessories for mechanical mixing and stirring, where mechanical energy influences the shape or size or homogeneity of materials and their accessories. Such devices may contain heating elements. NOTE If all or part of the equipment falls within the scope of
26、 one or more other Part 2 standards of IEC 61010 as well as within the scope of this standard, consideration is to be given to those other Part 2 standards. The standard for equipment which contain heating devices is IEC 61010-2-010. 2 Normative references This clause of Part 1 is applicable except
27、as follows: Addition: Add the following references to the list: IEC 62061, Safety of machinery Functional safety of safety-related electrical, electronic and programmable electronic control systems ISO 13849, Safety of machinery Safety-related parts of control systems 3 Terms and definitions This cl
28、ause of Part 1 is applicable. 4 Tests This clause of Part 1 is applicable. 5 Marking and documentation This clause of Part 1 is applicable except as follows: BS EN 61010-2-051:2015 6 IEC 61010-2-051:2015 IEC 2015 5.4.1 General Addition: Add, after item h), the following new item: aa) if a HAZARD cou
29、ld be caused by operating a mixer or stirrer intended for use as HAND-HELD EQUIPMENT, there shall be a warning statement to that effect. 5.4.4 Equipment operation Additions: Add after item j), the following new item: aa) instructions for fixing the stirring vessel if specified and sold as part of a
30、mixing system, or if otherwise applicable. Add a new paragraph after the list of items as follows: The instructions shall warn against use of the equipment in hazardous atmospheres or with hazardous materials for which the equipment is not designed. Replacement: Replace the paragraph before the comp
31、liance statement by the following: The user shall be made aware that the protection provided by the equipment may be impaired if the equipment is used with accessories not provided or recommended by the manufacturer, or used in a manner not specified by the manufacturer. 6 Protection against electri
32、c shock This clause of Part 1 is applicable. 7 Protection against mechanical HAZARDS This clause of Part 1 is applicable except as follows: 7.3.2 Exceptions Replacement: Replace, in item a), the words “for example drilling and mixing equipment” by the following: for example stirrer shafts and impell
33、ers extending downwards into material being stirred. Addition: Add the following subclauses: 7.3.101 Speed controls If a SINGLE FAULT of an electronic speed control could cause a HAZARD, the equipment shall incorporate means to interrupt power or otherwise prevent the HAZARD. BS EN 61010-2-051:2015I
34、EC 61010-2-051:2015 IEC 2015 7 Conformity is checked by inspection and test. 7.3.102 Movement during operation Equipment shall not change position during NORMAL USE. Conformity is checked by inspection and test. Equipment which has not moved by more than 5 mm after operation for 10 min is considered
35、 to meet the requirement. 7.3.103 Restarting after interruption Depending on the operation, a HAZARD may be caused either by re-starting or by not re-starting after interruption of the mixing action. Instructions shall specify whether equipment will re-start or not re-start, both in the case of MAIN
36、S interruption and in the case of a fault or mechanical interruption. If after interruption a hazard can occur the equipment shall be equipped with an audible or visible signal to warn that an interruption has occurred. Conformity is checked by inspection of documentation. 7.3.104 HAZARDS related to
37、 application Additional HAZARDS may occur with equipment used to mix flammable materials, or where the transfer of mechanical energy to glass apparatus could lead to breakage. Instructions for use shall warn against the use of equipment in such applications unless the equipment incorporates appropri
38、ate safety devices to prevent a HAZARD in SINGLE FAULT CONDITION. Such safety devices shall be independent from control systems. Examples of HAZARDS and appropriate safety devices include the following. a) Where failure of the mixing action could cause a HAZARD, for example in metal-organic reaction
39、s, the safety device shall initiate an alarm signal: 1) if the drive shaft or mixer fails to turn when the mixer is switched on; or 2) when an overload causes the shaft speed to fall below a preset level. NOTE Speed reduction can be caused by a lack of power or by the operation of an automatic devic
40、e which reduces the shaft speed in the case of an overload. b) Where a hazard could be caused by excessive torque applied to high-viscosity material, for example through glass breakage, the safety device shall initiate an alarm signal if the torque rises above a preset level. It is recommended that
41、safety devices work according to the principle of rest-current. Conformity is checked by inspection and test. 8 Resistance to mechanical stresses This clause of Part 1 is applicable except as follows: 8.1 General Replacement: Replace the text of item 3) by the following: 3) except for FIXED EQUIPMEN
42、T, for equipment with a mass over 100 kg, or for equipment whose size and weight make unintentional movement unlikely and which is not moved in NORMAL USE, the appropriate test of 8.3. The equipment is not operated during the tests. BS EN 61010-2-051:2015 8 IEC 61010-2-051:2015 IEC 2015 9 Protection
43、 against the spread of fire This clause of Part 1 is applicable. 10 Equipment temperature limits and resistance to heat This clause of Part 1 is applicable. 11 Protection against HAZARDS from fluids This clause of Part 1 is applicable except as follows: Addition: Add the following subclause: 11.101
44、Connections for hoses and pipes Connectors shall be so designed that hoses can be prevented from detaching, for example by means of hose clamps, and that pipes are adequately restrained. Conformity is checked by inspection. 12 Protection against radiation, including laser sources, and against sonic
45、and ultrasonic pressure This clause of Part 1 is applicable. 13 Protection against liberated gases and substances, explosion and implosion This clause of Part 1 is applicable except as follows: Addition: Add the following subclause: 13.2.101 Protection against explosion and explosives Equipment desi
46、gned for protection against explosion or to be used with explosives shall, according to the type, the mode of operation and the location, comply with the appropriate requirements of relevant IEC and ISO standards such as the IEC 60079 series, explosive atmosphere standards. Conformity is checked as
47、specified in the relevant standards. 14 Components and subassemblies This clause of Part 1 is applicable. 15 Protection by interlocks This clause of Part 1 is applicable except as follows: BS EN 61010-2-051:2015IEC 61010-2-051:2015 IEC 2015 9 15.1 General Addition: Add a new paragraph as follows: As
48、 an alternative method, for interlock systems containing electric/electronic or programmable components (E/E/P components) the reliability and design requirements can be determined by applying e.g. IEC 62061 (SIL) or ISO 13849 (PL) or other solutions providing equivalent functional safety. 16 HAZARD
49、S resulting from application This clause of Part 1 is applicable. 17 RISK Assessment This clause of Part 1 is applicable. BS EN 61010-2-051:2015 10 IEC 61010-2-051:2015 IEC 2015 Annexes The annexes of Part 1 are applicable. Bibliography The Bibliography of Part 1 is applicable, except as follows. Addition: Add the following references: IEC 61010-2-010, Safety requirements for electrical equipment for measurement, control, and laboratory use Part 2-010: Particular requirements for laboratory equipment for
