1、BRITISH STANDARDBS EN 14958:2006+A1:2009Food processing machinery Machinery for grinding and processing flour and semolina Safety and hygiene requirementsICS 67.260g49g50g3g38g50g51g60g44g49g42g3g58g44g55g43g50g56g55g3g37g54g44g3g51g40g53g48g44g54g54g44g50g49g3g40g59g38g40g51g55g3g36g54g3g51g40g53g4
2、8g44g55g55g40g39g3g37g60g3g38g50g51g60g53g44g42g43g55g3g47g36g58National forewordThis British Standard is the UK implementation of EN 14958:2006+A1:2009. It supersedes BS EN 14958:2006, which is withdrawn.The start and finish of text introduced or altered by amendment is indicated in the text by tag
3、s. 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 its preparation was entrusted by Technical Committee MCE/3, Safeguarding of machinery, to Subcommittee MCE/3/5, Food industry machine
4、s.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 necessary provisions of a contract. Users are responsible for its correct application.Compliance with a British Standard cannot confer immunity
5、from legal obligations.BS EN 14958:2006+A1:2009This British Standard was published under the authority of the Standards Policy and Strategy Committee on 29 September 2006 BSI 2009Amendments/corrigenda issued since publicationDate Comments 30 June 2009 Implementation of CEN amendment A1:2009ISBN 978
6、0 580 63006 4EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 14958:2006+A1 April 2009 ICS 67.260 Supersedes EN 14958:2006English Version Food processing machinery - Machinery for grinding and processing flour and semolina - Safety and hygiene requirements Machines pour les produits alimentaires
7、 - Machines mouture et transformation de farines et de semoule - Prescriptions relatives la scurit et lhygine Nahrungsmittelmaschinen - Maschinen zum Mahlen und Verarbeiten von Mehl und Grie - Sicherheits- und Hygieneanforderungen This European Standard was approved by CEN on 10 May 2006 and include
8、s Amendment 1 approved by CEN on 7 March 2009. CEN 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 concerni
9、ng such national standards may be obtained on application to the CEN Management Centre or to any CEN 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 CEN member into its own l
10、anguage and notified to the CEN Management Centre has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania
11、, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: Avenue Marnix 17, B-1000 Brussels 2009 CEN A
12、ll rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 14958:2006+A1:2009: EEN 14958:2006+A1:2009 (E) 2 Contents Page Foreword 3Introduction .41 Scope 52 Normative references 53 Terms and definitions .74 List of significant hazards . 125 !Safe
13、ty requirements and/or protective measures“ 145.1 General . 145.2 Mechanical hazards 145.3 Protective measures against electrical hazards 225.4 Noise reduction . 235.5 Protection against dust emission . 235.6 Ergonomic requirements . 235.7 Protective measures against hazards due to neglecting hygien
14、ic principles . 245.8 Measures against fire and explosion hazards . 305.9 Harmful substance (cleaning and disinfecting agents) 315.10 !Safety related parts of control system 316 Verification of the safety requirements and/or measures 317 Information for use . 337.1 General . 337.2 Safety signals and
15、 warning devices . 347.3 Instruction handbook . 347.4 Marking 36Annex A (normative) Principles of design to ensure the cleanability of machinery . 37Annex B (normative) Noise test code for grinding and processing flour and semolina (grade 2) 47Annex C (informative) Evaluation of explosion risks in p
16、lants including grain processing machines . 50Annex ZA (normative) Relationship between this European Standard and the Essential Requirements of EU Directive 98/37/EC . 54Annex ZB (informative) !Relationship between this European Standard and the Essential Requirements of EU Directive 2006/42/EC“ 55
17、Bibliography . 56BS EN 14958:2006+A1:2009EN 14958:2006+A1:2009 (E) 3 Foreword This document (EN 14958:2006+A1:2009) has been prepared by Technical Committee CEN/TC 153 “Machinery intended for use with foodstuffs and feed”, the secretariat of which is held by DIN. This European Standard shall be give
18、n the status of a national standard, either by publication of an identical text or by endorsement, at the latest by October 2009, and conflicting national standards shall be withdrawn at the latest by December 2009. This document includes Amendment 1, approved by CEN on 2009-03-07. This document sup
19、ersedes EN 14958:2006. The start and finish of text introduced or altered by amendment is indicated in the text by tags !“. This document has been prepared under a mandate given to CEN by the European Commission and the European Free Trade Association, and supports essential requirements of EU Direc
20、tive(s). !For relationship with EU Directive(s), see informative Annexes ZA and ZB, which are integral parts of this document.“ It is one of a series of standards which have been prepared for machines and equipment for grain processing equipment in accordance with EN 1672-2. According to the CEN/CEN
21、ELEC 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, Latvia, Lithuania, Luxem
22、bourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. BS EN 14958:2006+A1:2009EN 14958:2006+A1:2009 (E) 4 Introduction !This European Standard is a type C standard as stated in EN ISO 12100. The machinery concerned and the ex
23、tent to which hazards, hazardous situations 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 provis
24、ions of the other standards for machines that have been designed and built according to the provisions of this type C standard. Complementary to the hygiene requirements common to all food processing machines, specific requirements for cleanability and sanitation of the machines in the scope are for
25、mulated.“ BS EN 14958:2006+A1:2009EN 14958:2006+A1:2009 (E) 5 1 Scope This European Standard deals with the significant hazards, hazardous situations and events relevant to the following machinery for grinding and processing of flour and semolina, as defined in Clause 3: roller mills, plan sifters a
26、nd rotary separators, air classifiers, rotating machines and impact machines. The machines in the scope are stationery (not intended to be moved when in operation), have a capacity of at least 100 kg/h, and are intended for use in installations for grain processing, such as flour mills, semolina mil
27、ls, grain cleaning and flaking plants. This European Standard deals with the significant hazards during commissioning, operation, cleaning and maintenance of the machines in the scope when they are used as intended and under conditions of misuse which are reasonably foreseeable by the manufacturer.
28、This European Standard is not applicable to: machines intended for household use or laboratory use; stone mills; equipment for dampening and heating; auxiliary equipment for conveying, weighting and bagging (without changing the characteristics of the products). This European Standard is not dealing
29、 with the following: hazards related to decommissioning; the hazards of the installations into which the machines are incorporated other than those directly related to the machines in the scope (e.g. start of the installation, disconnection of energy supply, need from an emergency stop device); haza
30、rds due to the use of the machinery in a potentially explosive atmosphere (when producing this standard it has been assumed that the machinery in the scope, if designed and used in accordance with this European Standard, is not creating itself a hazardous atmosphere wholly of partly surrounding it).
31、 NOTE If the machine is intended for use in a potentially explosive atmosphere, additional safety measures can be necessary1). This European Standard is not applicable to machines for grinding and processing of flour and semolina which are manufactured before the date of its publication as EN. 2 Nor
32、mative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 294:1992, Safety of machiner
33、y Safety distances to prevent danger zones being reached by the upper limbs EN 349:1993, Safety of machinery Minimum gaps to avoid crushing of parts of the human body 1) For the EU and the EEA the requirements of the EU directive 94/9/EC may apply. BS EN 14958:2006+A1:2009EN 14958:2006+A1:2009 (E) 6
34、 !deleted text“ !EN 614-1:2006“, Safety of machinery Ergonomic design principles Part 1: Terminology and general principles EN 811:1996, Safety of machinery Safety distances to prevent danger zones being reached by the lower limbs EN 953:1997, Safety of machinery Guards General requirements for the
35、design and construction of fixed and movable guards EN 1088:1997, Safety of machinery Interlocking devices associated with guards Principles for design and selection EN 1127-1:1997, Explosive atmospheres Explosion prevention and protection Part 1: Basic concepts and methodology EN 1672-2:2005, Food
36、processing machinery - Basic concepts - Part 2: Hygiene requirements EN 13284-1:2001, Stationery source emissions Determination of low range mass concentration of dust Part 1: Manual gravimetric method EN 13478:2001, Safety of machinery Fire prevention and protection !EN 60204-1:2006, Safety of mach
37、inery Electrical equipment of machines Part 1: General requirements“ EN 60529:1991, Degrees of protection provided by enclosures (IP code) (IEC 60529:1989) EN 61310-1:1995, Safety of machinery Indication, marking and actuation Part 1: Requirements for visual, auditory and tactile signals (IEC 61310-
38、1:1995) EN ISO 3744:1995, Acoustics Determination of sound power levels of noise sources using sound pressure Engineering method in an essentially free field over a reflecting plane (ISO 3744:1994) EN ISO 4871:1996, Acoustics Declaration and verification of noise emission values of machinery and equ
39、ipment (ISO 4871:1996) EN ISO 11201, Acoustics Noise emitted by machinery and equipment Measurement of emission sound pressure levels at a work station and at other specified positions Engineering method in an essentially free field over a reflecting plane (ISO 11201:1995) EN ISO 11688-1:1998, Acous
40、tics Recommended practice for the design of low-noise machinery and equipment Part 1: Planning (ISO/TR 11688-1:1995) EN ISO 12100-1:2003, Safety of machinery Basic concepts, general principles for design Part 1: Basic terminology, methodology (ISO 12100-1:2003) EN ISO 12100-2:2003, Safety of machine
41、ry Basic concepts, general principles for design Part 2: Technical principles (ISO 12100-2:2003) !EN ISO 13849-1:2008, Safety of machinery Safety related parts of controls system Part 1: General principles for design (ISO 13849-1:2006)“ BS EN 14958:2006+A1:2009EN 14958:2006+A1:2009 (E) 7 3 Terms and
42、 definitions For the purposes of this document, the terms and definition given in EN ISO 12100-1:2003 and the following apply. 3.1 roller mill machine that carries out a physical action on grain and/or grain products causing granulometric reduction or shape modification by means of pressure generate
43、d by counter rotating components (see Figure 1) 3.2 plan sifter and rotary separator machine that carries out a granulometric separating action on grain and/or grain products by means of screens and/or sieves using rotary motion (see Figure 2) 3.3 air classifier machine that carries out a granulomet
44、ric separating action and/or a separation according to specific weight on grain and/or grain products by means of screens or sieves by using stroking motion (see Figure 3). The following machines are included in this group: purifiers, gravity separators, aspirators, de-stoners, vibrating separators
45、3.4 rotating machine machine that carries out on grain and/or grain products a physical action by means of rotary motion components and/or a separating action by means of fixed components with screens and sieves (see Figure 4). The following machines are included in this group: vibrating finishers,
46、intensive scourers, rotating sifters, bran finishers, crumblers, de-germinators, de-huskers 3.5 impact machine machine that carry out a physical action on grain and/or grain products by causing a granulometric reduction by impact using rotating components (see Figure 5). The following machines are i
47、ncluded in this group: impactors, infestation destroyers BS EN 14958:2006+A1:2009EN 14958:2006+A1:2009 (E) 8 Key 1 product inlet 2 grinding rolls 3 product outlet 4 drive motor 5 feeding rolls Figure 1 Operating principle of roller mill BS EN 14958:2006+A1:2009EN 14958:2006+A1:2009 (E) 9 Key 1 produ
48、ct inlet 2 sieves 3 product outlet 4 centrifugal weights 5 suspension rods 6 drive motor Figure 2 Operating principle of plan sifter and rotary separator BS EN 14958:2006+A1:2009EN 14958:2006+A1:2009 (E) 10 Key 1 product inlet 2 air exhaust 3 sieves 4 product outlets 5 supporting springs 6 vibrating
49、 devices Figure 3 Operating principle of air classifier (purifier, gravity separator, aspirator, de-stoner, vibrating separator) BS EN 14958:2006+A1:2009EN 14958:2006+A1:2009 (E) 11 Key 1 product inlet 2 air exhaust 3 fixed component (sieve or screen) 4 rotating component 5 product outlet 6 drive motor Figure 4 Operating principle of rotating machine (vibrating fisher, intensive scourer, r
