1、|BRITISH STANDARDBS EN1012-2 :1996ICS 23.140; 23.160NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWCompressors andvacuum pumps Safety requirementsPart 2: Vacuum pumps+A1:2009National forewordThis British Standard is the UK implementation of EN 1012-2:1996+A1:2009. It supersede
2、s BS EN 1012-2:1997 which is withdrawn.The start and finish of text introduced or altered by amendment is indicated in the text by tags. Tags indicating changes to CEN text carry the number of the CEN amendment. For example, text altered by CEN amendment A1 is indicated by !“.The UK participation in
3、 its preparation was entrusted to Technical Committee MC/8, Compressors, pneumatic tools, pneumatic machines and vacuum technology, to Subcommittee MCE/8/-/4, Vacuum technology.A list of organizations represented on this subcommittee can be obtained on request to its secretary.This publication does
4、not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. Compliance with a British Standard cannot confer immunity from legal obligations.BS EN 1012-2:1996+A1:2009Amendments/corrigenda issued since publicationDate Text affected31 December
5、2009 Implementation of CEN amendment A1:2009; Alignment of CEN and BSI publication datesThis British Standard, having been prepared under the direction of the Engineering Sector Board, was published under the authority of the Standards Board and comes into effect on15 January 1997 BSI 2009ISBN 978 0
6、 580 62054 6EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 1012-2:1996+A1 September 2009 ICS 23.140; 23.160 Supersedes EN 1012-2:1996English Version Compressors and vacuum pumps - Safety requirements - Part 2: Vacuum pumps Compresseurs et pompes vide - Prescriptions de scurit - Partie 2: Pompe
7、s vide Kompressoren und Vakuumpumpen - Sicherheitsanforderungen - Teil 2: Vakuumpumpen This European Standard was approved by CEN on 13 March 1996 and includes Amendment 1 approved by CEN on 6 August 2009. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the
8、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 Management Centre or to any CEN member. This European Standard exists in
9、 three official versions (English, French, German). A version in any other language made by translation under the responsibility of a CEN member into its own language and notified to the CEN Management Centre has the same status as the official versions. CEN members are the national standards bodies
10、 of Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. EUROP
11、EAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: Avenue Marnix 17, B-1000 Brussels 2009 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 1012-2:1996+A1:2009: EEN 1012
12、-2:1996+A1:2009 (E) 2 Contents Page Foreword 4!Introduction“ 41 Scope 52 Normative references 53 Definitions 64 List of Hazards Specific to Vacuum Pumps 84.1 Mechanical Hazards 84.2 Electrical Hazards 94.3 Thermal hazards . 104.4 Hazards generated by noise 104.5 Hazards generated by radiation 104.6
13、Hazards generated by material and substances processed, used or exhausted by vacuum pumps 104.7 Hazards generated by neglecting ergonomic principles in design . 114.8 Hazards caused by failure of energy supply, breaking down of parts or other functional disorders 114.9 Hazards caused by missing or i
14、ncorrectly positioned safety related measures and means . 115 Safety requirements and measures 115.1 Mechanical safety . 125.2 Electrical Safety 135.3 Thermal Safety 145.4 Noise 155.5 Radiation 155.6 Materials and substances processed, used or exhausted by vacuum pumps 155.7 Ergonomic principles in
15、machine design 165.8 Failure of energy supply, breaking down of machinery parts and other functional disorders 175.9 Safety related measures and means. 175.10 Emergency stops 176 Marking, signs and warnings 186.1 Generally applicable . 186.2 Data plate . 186.3 Additional requirements 186.4 A vacuum
16、pumping system shall be marked with additional information on vacuum systems. . 197 Information for use . 197.1 General . 197.2 Transport and Storage . 207.3 Installation . 207.4 Product description 217.5 Use . 217.6 Maintenance 228 Verification 238.1 Noise measurement 238.2 Pressure test . 238.3 Me
17、chanical stability testing . 238.4 Testing for leak tightness 23BS EN 1012-2:1996+A1:2009EN 1012-2:1996+A1:2009 (E) 3 8.5 Structure of verification 25Annex A (normative) Labels, signs and warnings. 26Annex ZA (informative) !Relationship between this European Standard and the Essential Requirements o
18、f EU Directive 98/37/EC“ 31Annex ZB (informative) !Relationship between this European Standard and the Essential Requirements of EU Directive 2006/42/EC“ 32BS EN 1012-2:1996+A1:2009EN 1012-2:1996+A1:2009 (E) 4 Foreword This document (EN 1012-2:1996+A1:2009) has been prepared by Technical Committee C
19、EN/TC 232 “Compressors, vacuum pumps and their systems”, the secretariat of which is held by SIS. This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by March 2010, and conflicting standards shall be wit
20、hdrawn at the latest by March 2010. This document includes Amendment 1, approved by CEN on 2009-08-06. This document supersedes EN 1012-2:1996. The start and finish of text introduced or altered by amendment is indicated in the text by tags !“. This European Standard has been prepared under a mandat
21、e given to CEN by the European Commission and the European Free Trade Association, and supports essential requirements of EU Directive(s). !For relationship with EU Directive(s), see informative Annexes ZA and ZB, which are integral parts of this document.“ The responsibility of CEN/TC 232 includes
22、coordination of safety standards with CEN/TC 182 “Refrigerating systems, safety and environmental requirements“ and CEN/TC 234 “Gas supply“. !Annexes A, ZA and ZB to this draft European Standard are informative.“ This standard is divided in two parts: EN 1012-1 Compressors EN 1012-2 Vacuum Pumps Acc
23、ording to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Lat
24、via, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. !Introduction This document is a type C standard as stated in EN ISO 12100. The machinery concerned and the extent to which hazards, hazardous situati
25、ons and hazardous events are covered are indicated in the scope of this document. When provisions of this type C standard are different from those which are stated in type A or B standards, the provisions of this type C standard take precedence over the provisions of the other standards, for machine
26、s that have been designed and built according to the provisions of this type C standard.“ BS EN 1012-2:1996+A1:2009EN 1012-2:1996+A1:2009 (E) 5 1 Scope This standard is applicable to all vacuum pumps, vacuum pump combinations and vacuum pumping systems. The standard lists the significant hazards ass
27、ociated with vacuum pumps and specifies safety requirements applicable to the design, installation, operation, maintenance and dismantling of vacuum pumps during their foreseeable life and subsequent disposal. The scope does not include pumps designed to pump continuously on open systems where the p
28、ump inlet pressure is above 75 kPA (750 mbar) absolute, i.e. vacuum cleaners, ventilation fans). Vacuum pumps intended for use in special applications shall also comply with any specific standards relating to those applications. 2 Normative references This European Standard incorporates by dated or
29、undated reference, provisions from other publications. These normative references are cited at the appropriate places in the text and the publications are listed hereafter. For dated references, subsequent amendments to or revisions of any of these publications apply to this European Standard only w
30、hen they are incorporated in it by amendment or revision. For undated references the latest edition of the publication referred to applies. !deleted text“ EN 294:1992, Safety of machinery Safety distances to prevent danger zones being reached by the upper limbs. EN 418, Safety of machinery Emergency
31、 stop equipment Functional aspects EN 563, Temperatures of touchable surfaces Ergonomics data to establish temperature limit values for hot surfaces EN 953, Safety of machinery Guarding of machinery Fixed and moveable guards. EN 1127-1, Safety of machinery Fires and explosions Part 1: Explosion prev
32、ention !deleted text“ EN 50 014, Electrical apparatus for potentially explosive atmospheres General requirements EN 50 081-2, Electro-magnetic compatibility Generic emission Part 2: Industrial environment EN 50 082-2, Electro-magnetic compatibility Generic immunity Part 2: Industrial environment EN
33、61310-1, Safety of machinery Indication, marking and actuation Part 1: Requirements for visual, auditory and tactile signal (IEC 1310-1:1995) EN 60204-1:1992, Electrical equipment of industrial machines Part 1: General requirements EN 60529, Degrees of protection provided by enclosures ENV 1070, Saf
34、ety of machinery Terminology !EN ISO 2151, Acoustics Noise test code for compressors and vacuum pumps Engineering method (Grade 2) (ISO 2151:2004)“ !EN ISO 12100-2:2003, Safety of machinery Basic concepts, general principles for design Part 2: Technical principles (ISO 12100-2:2003)“ BS EN 1012-2:19
35、96+A1:2009EN 1012-2:1996+A1:2009 (E) 6 ISO 3266, Eyebolts for lifting purposes ISO 3529, Vacuum Technology Vocabulary ISO 4126-1, Safety valves Part 1: General Requirements ISO 4871, Acoustics Declaration and verification of noise emission values of machinery and equipment ISO 7000, Graphical symbol
36、s for use on equipment Index and synopsis ISO/TR 11688-1, Acoustics Recommended practice for the design of low-noise machinery and equipment Part 1: Planning IEC 417, Graphical symbols for use on equipment !IEC 61010-1“, Safety requirements for electrical equipment for measurement, control and labor
37、atory use Part 1: General requirements 3 Definitions For the purposes of this standard the definitions given in ENV 1070 and ISO 3529 apply. Definitions specifically needed for this standard are added below. 3.1 vacuum an environment where the total pressure is below the prevailing atmospheric level
38、. NOTE Vacuum is usually measured as the absolute pressure of the residual gas expressed as Pascals (Pa) or millibar (mbar). 1 mbar = 100 Pa. 3.2 vacuum pump device for creating, improving and/or maintaining a vacuum. NOTE Terms “vacuum pump“ and “pump“ have the same meaning throughout this standard
39、. 3.3 pump inlet port by which gas to be pumped enters the pump 3.4 pump outlet outlet or discharge port of a pump 3.5 maximum starting pressure maximum inlet pressure at which the vacuum pump may be started 3.6 maximum outlet pressure maximum pressure at the vacuum pump outlet specified by the manu
40、facturer BS EN 1012-2:1996+A1:2009EN 1012-2:1996+A1:2009 (E) 7 3.7 throughput of a vacuum pump quantity of gas flowing through the inlet of the vacuum pump, usually expressed as a pressure quantity product per unit time interval 3.8 pumped media all the substances which enter the vacuum pump i.e. ga
41、ses, vapours, liquid mists and entrained solid particles 3.9 pump fluid fluid essential for the operation of a vacuum pump 3.10 primary pump pump that has a maximum outlet pressure equal or greater than ambient pressure 3.11 secondary pump pump which has a maximum starting pressure or a maximum outl
42、et pressure which is less than atmospheric pressure or is only efficient at lower pressures and is intended to operate in conjunction with a primary pump to produce pressures lower than could be achieved by the primary pump alone 3.12 pumping system pump or a combination of pumps fitted with accesso
43、ries for the sole purpose of producing a vacuum. The accessories could include pipework, valves, filters, coolers, control devices and any other equipment required to meet performance requirements 3.13 positive displacement pump vacuum pump in which a volume filled with gas is cyclically isolated fr
44、om the inlet, the gas being then transferred to an outlet 3.14 vapour pump vacuum pump in which gases are pumped by molecular collision with and/or entrainment by a high speed directional vapour stream and driven to the pump outlet (e.g. Vapour Diffusion Pumps and Vapour Diffusion Ejector Pumps) 3.1
45、5 cryogenic entrapment pump vacuum pump in which the pumped media is either condensed on a surface refrigerated to a very low temperature (less than 120 K) or is retained by adsorption using a porous medium of large effective area maintained at cryogenic temperature (e.g. Cryopumps and Adsorption Pu
46、mps). The term “cryogenic temperature“ is used in the text for temperatures less than 120 K. 3.16 getter pump pumps in which the gas is retained principally by chemical combination with a getter. The getter is usually a metal or metal alloy either in bulk (volume getter pump) or is sublimated (subli
47、mation pump) or is dispersed by cathodic sputtering (sputter ion pump) 3.17 molecular pump vacuum pumps in which the pumping action is achieved by a high speed rotor imparting momentum to gas molecules causing them to move towards the outlet of the pump (e.g. Molecular Drag Pumps and Turbomolecular
48、Pumps) BS EN 1012-2:1996+A1:2009EN 1012-2:1996+A1:2009 (E) 8 3.18 maximum allowable working pressure maximum operating pressure which the manufacturer specifies 3.19 minimum allowable working pressure minimum operating pressure which the manufacturer specifies 3.20 baking process of heating a vacuum system to accelerate, for instance, the removal of unwanted substances from the surfaces within the system and enable a low pressure to be achieved 3.21 methane drain pump positive displacement pump used for the extra
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