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1、BRITISH STANDARD BS EN 61010-2-051:2003 Incorporating Corrigendum No. 1 Safety requirements for electrical equipment for measurement, control, and laboratory use Part 2-051: Particular requirements for laboratory equipment for mixing and stirring The European Standard EN 61010-2-051:2003 has the sta
2、tus of a British Standard ICS 19.080; 71.040.20 ? Licensed Copy: sheffieldun sheffieldun, na, Thu Nov 09 08:06:18 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS EN 61010-2-051:2003 This British Standard was published under the authority of the Standards Policy and Strategy Committee on 12 December 20
3、03 BSI 2 February 2004 ISBN 0 580 43062 6 National foreword This British Standard is the official English language version of EN 61010-2-051:2003. It is identical with IEC 61010-2-051:2003. It supersedes BS EN 61010-2-051:1996 which is withdrawn. The UK participation in its preparation was entrusted
4、 to Technical Committee EPL/66, Safety of measuring, control and laboratory equipment, which has the responsibility to: A list of organizations represented on this committee can be obtained on request to its secretary. The British Standards which implement international or European publications refe
5、rred to in this document 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 provi
6、sions of a contract. 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 European committee any enquiries on the interpretation, or proposals
7、for change, and keep the 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 8, an inside back cover and a back cover. The BSI copyri
8、ght notice displayed in this document indicates when the document was last issued. Amendments issued since publication Amd. No. DateComments 15004 Corrigendum No. 1 2 February 2004Correct version of IEC document inserted Licensed Copy: sheffieldun sheffieldun, na, Thu Nov 09 08:06:18 GMT+00:00 2006,
9、 Uncontrolled Copy, (c) BSI EUROPEAN STANDARD EN 61010-2-051 NORME EUROPENNE EUROPISCHE NORM October 2003 CENELEC European Committee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische Normung Central Secretariat: rue de Stass
10、art 35, B - 1050 Brussels 2003 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members. Ref. No. EN 61010-2-051:2003 E ICS 19.080; 71.040.20 Supersedes EN 61010-2-051:1995 English version Safety requirements for electrical equipment for measurement, c
11、ontrol, and laboratory use Part 2-051: Particular requirements for laboratory equipment for mixing and stirring (IEC 61010-2-051:2003) Rgles de scurit pour appareils lectriques de mesurage, de rgulation et de laboratoire Partie 2-051: Prescriptions particulires pour appareils de laboratoire utiliss
12、pour mixer et agiter (CEI 61010-2-051:2003) Sicherheitsbestimmungen fr elektrische Mess-, Steuer-, Regel- und Laborgerte Teil 2-051: Besondere Anforderungen an Laborgerte zum Mischen und Rhren (IEC 61010-2-051:2003) This European Standard was approved by CENELEC on 2003-10-01. CENELEC members are bo
13、und 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
14、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 sam
15、e status as the official versions. CENELEC members are the national electrotechnical committees of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Lithuania, Luxembourg, Malta, Netherlands, Norway, Portugal, Slovakia, Spain, Sweden, Swit
16、zerland and United Kingdom. Licensed Copy: sheffieldun sheffieldun, na, Thu Nov 09 08:06:18 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 61010-2-50:10023 - - 2 Foreword The text of document 66/325/FDIS, future edition 2 of IEC 61010-2-051, prepared by IEC TC 66, Safety of measuring, control and lab
17、oratory equipment, was submitted to the IEC-CENELEC parallel vote and was approved by CENELEC as EN 61010-2-051 on 2003-10-01. This European Standard supersedes EN 61010-2-051:1995. The following dates were fixed: latest date by which the EN has to be implemented at national level by publication of
18、an identical national standard or by endorsement (dop) 2004-07-01 latest date by which the national standards conflicting with the EN have to be withdrawn (dow) 2006-10-01 This Part 2-051 is intended to be used in conjunction with EN 61010-1:2001. This Part 2-051 supplements or modifies the correspo
19、nding clauses in EN 61010-1 so as to convert it into the European Standard: Safety requirements for laboratory equipment for for mixing and stirring. Where a particular clause or subclause of Part 1 is not mentioned in this part 2, that clause or subclause applies as far as is reasonable. Where this
20、 part 2 states “addition“, “modification“, “replacement“ or “deletion” the relevant text of Part 1 is to be adapted accordingly. In this standard: 1) the following print types are used: - requirements: in roman type; - NOTES: in smaller roman type; - conformity and test: in italic type; - terms used
21、 throughout this standard which have been defined in Clause 3: SMALL ROMAN CAPITALS; 2) subclauses, figures, tables and notes which are additional to those in Part 1 are numbered starting from 101. _ Endorsement notice The text of the International Standard IEC 61010-2-051:2003 was approved by CENEL
22、EC as a European Standard without any modification. In the official version, for Bibliography, the following note has to be added for the standard indicated: IEC 61010-2-010 NOTE Harmonized as EN 61010-2-010:2003 (not modified). _ 2 egaP 3002:150201016 NE Page 2 EN 610102051:2003 Licensed Copy: shef
23、fieldun sheffieldun, na, Thu Nov 09 08:06:18 GMT+00:00 2006, Uncontrolled Copy, (c) BSI 2 160-01-2051 IE2:C(300E) CONTENTS 1 Scope and object4 2 Normative references .4 3 Terms and definitions .4 4 Tests4 5 Marking and documentation4 6 Protection against electric shock 5 7 Protection against mechani
24、cal HAZARDS5 8 Mechanical resistance to shock and impact . 6 9 Protection against the spread of fire .6 10 Equipment temperature limits and resistance to heat6 11 Protection against HAZARDS from fluids .6 12 Protection against radiation, including laser sources, and against sonic and ultrasonic pres
25、sure.7 13 Protection against liberated gases, explosion and implosion.7 14 Components.7 15 Protection by interlocks 7 16 Test and measurement equipment7 Annexes .8 Bibliography8 Pa3 eg E3002:150201016 N Page 3 EN 610102051:2003 Licensed Copy: sheffieldun sheffieldun, na, Thu Nov 09 08:06:18 GMT+00:0
26、0 2006, Uncontrolled Copy, (c) BSI 160-01-2051 IE2:C(300E) 3 SAFETY REQUIREMENTS FOR ELECTRICAL EQUIPMENT FOR MEASUREMENT, CONTROL, AND 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
27、 follows: 1.1 Scope Replacement: Replace the whole text by the following new paragraph: This part of IEC 61010 is applicable to electrically operated laboratory equipment and its accessories for mechanical mixing and stirring, where mechanical energy influences the shape or size or homogeneity of ma
28、terials and their accessories. Such devices may contain heating elements. NOTE If all or part of the equipment falls within the scope of one or more other part 2 standards of IEC 61010 as well as within the scope of this standard, it will also need to meet the requirements of those other part 2 stan
29、dards. The requirements for equipment which contain heating devices are given in IEC 61010-2-010. 2 Normative references This clause of Part 1 is applicable. 3 Terms and definitions This clause of Part 1 is applicable. 4 Tests This clause of Part 1 is applicable. 5 Marking and documentation This cla
30、use of Part 1 is applicable except as follows: 5.4.1 General Addition: Number the existing note as Note 1 and add a new Note 101 as follows: NOTE 101 If a HAZARD could be caused by operating a mixer or stirrer intended for use as HAND-HELD EQUIPMENT, there should be a warning statement to that effec
31、t. Page 4 BS3002:150201016 NE Page 4 EN 610102051:2003 Licensed Copy: sheffieldun sheffieldun, na, Thu Nov 09 08:06:18 GMT+00:00 2006, Uncontrolled Copy, (c) BSI 4 160-01-2051 IE2:C(300E) 5.4.4 Equipment operation Additions: Add after item i), a new item aa) as follows: aa) instructions for fixing t
32、he stirring vessel if specified and sold as part of a mixing system, or if otherwise applicable. Add a new second paragraph after the first paragraph as follows: The instructions shall warn against use of the equipment in hazardous atmospheres or with hazardous materials for which the equipment is n
33、ot designed. Replacement: Replace the original second paragraph (now the third paragraph) 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
34、 a manner not specified by the manufacturer. 6 Protection against electric shock This clause of Part 1 is applicable. 7 Protection against mechanical HAZARDS This clause of Part 1 is applicable except as follows: Replacement: 7.2 Moving parts Replace in line 2 of the second paragraph the words: “for
35、 example drilling and mixing equipment” by the following: for example stirrer shafts and impellers extending downwards into material being stirred. Additional subclauses: 7.2.101 Speed controls If a SINGLE FAULT of an electronic speed control could cause a HAZARD, the equipment shall incorporate mea
36、ns to interrupt power or otherwise prevent the HAZARD. Conformity is checked by inspection and test. 7.2.102 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
37、for 10 min is considered to meet the requirement. Pa5 eg B3002:150201016 NE S Page 5 EN 610102051:2003 Licensed Copy: sheffieldun sheffieldun, na, Thu Nov 09 08:06:18 GMT+00:00 2006, Uncontrolled Copy, (c) BSI 160-01-2051 IE2:C(300E) 5 7.2.103 Restarting after interruption According to application,
38、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 MAINS interruption and in the case of a fault or mechanical interruption. NOTE In some cases, i
39、t may be appropriate for an audible or visible signal to warn that an interruption has occurred. Conformity is checked by inspection of documentation. 7.2.104 HAZARDS related to application Additional HAZARDS may occur with equipment used to mix flammable materials, or where the transfer of mechanic
40、al 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 appropriate safety devices to prevent a HAZARD in SINGLE FAULT CONDITION. Such safety devices shall be independent from control sys
41、tems. 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 reactions, the safety device shall initiate an alarm signal: 1) if the drive shaft or mixer fails to turn when the mixer is switche
42、d on; or 2) when an overload causes the shaft speed to fall below a preset level. NOTE 1 Speed reduction may be caused by a lack of power or by the operation of an automatic device which reduces the shaft speed in the case of an overload. b) Where a HAZARD could be caused by excessive torque applied
43、 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. NOTE 2 It is recommended that safety devices should work according to the principle of rest-current. Conformity is checked by inspection and tes
44、t. 8 Mechanical resistance to shock and impact This clause of Part 1 is applicable. 9 Protection 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
45、clause of Part 1 is applicable except as follows: Pa6 eg B3002:150201016 NE S Page 6 EN 610102051:2003 Licensed Copy: sheffieldun sheffieldun, na, Thu Nov 09 08:06:18 GMT+00:00 2006, Uncontrolled Copy, (c) BSI 6 160-01-2051 IE2:C(300E) Additional subclause: 11.101 Connections for hoses and pipes Con
46、nectors 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 and ultrasonic pressure This clause
47、 of Part 1 is applicable. 13 Protection against liberated gases, explosion and implosion This clause of Part 1 is applicable except as follows: Additional subclause: 13.2.101 Protection against explosion and explosives Equipment designed for protection against explosion or to be used with explosives
48、 shall, according to the type, the mode of operation and the location, comply with the appropriate requirements of relevant IEC and ISO standards. Conformity is checked as specified in the relevant standards. 14 Components This clause of Part 1 is applicable. 15 Protection by interlocks This clause
49、of Part 1 is applicable. 16 Test and measurement equipment This clause of Part 1 is not applicable. Pa7 eg B3002:150201016 NE S Page 7 EN 610102051:2003 Licensed Copy: sheffieldun sheffieldun, na, Thu Nov 09 08:06:18 GMT+00:00 2006, Uncontrolled Copy, (c) BSI 160-01-2051 IE2:C(300E) 7 Annexes The annexes of Part 1 are applicable. Bibliography The bibliography of Part 1 is applicable, except as follows. Addi