SIST EN 13390:2002+A1:2010
(Main)Food processing machinery - Pie and tart machines - Safety and hygiene requirements
Food processing machinery - Pie and tart machines - Safety and hygiene requirements
This standard specifies safety and hygienic design requirements for the manufacture of machines used for the production of pies, tarts, pasties, en croute products and other similar items where the pastry cases are formed by the closing under pressure of one or more forming heads. The standard applies to the following three basic types of machine: - machines where operators hands enter hazard zone 1 at each cycle; - machines which are loaded outside hazard zone 1; - automatic machines. Figure 1, 2 and 3 illustrate examples of these. Automatic loading devices are not covered by this standard. This standard applies to electrically, pneumatically and hydraulically powered machines. Manually operated machines are excluded from the scope of this standard. This standard covers the technical safety requirements for the transport, installation, operation, cleaning and maintenance of these machines (see 5.2 and 5.3 of EN ISO 12100-1:2003). This standard deals with all significant hazards, hazardous situations and events relevant to pie and tart machines, when they are used as intended and under the conditions of misuse which are reasonably foreseeable by the manufacturer (see Clause 4). Flour dust is not a significant hazard at pie and tart machines. A noise test code is included in annex B to assist manufacturers to measure noise level for the purpose of the noise emission declaration. This document in not applicable to pie and tart machines which are manufactured before the date of publication of this document by CEN.
Nahrungsmittelmaschinen - Tortelettmaschinen - Sicherheits- und Hygieneanforderungen
Diese Europäische Norm legt die Sicherheits- und Hygieneanforderungen für die Herstellung von Maschinen
fest, die verwendet werden für die Produktion von Pasteten, Torten, Torteletts, Produkten im Teigmantel und
anderen ähnlichen Artikeln, bei denen die Teigmäntel durch das Schließen von einem oder mehreren Formköpfen
unter Druck geformt werden. Diese Norm gilt für die folgenden drei Maschinengrund-Typen:
⎯ Maschinen, bei denen die Hände des Operators bei jedem Zyklus in den Gefährdungsbereich 1
(siehe !4.2") gelangen;
⎯ Maschinen, die außerhalb des Gefährdungsbereichs 1 beschickt werden;
⎯ automatische Maschinen.
In Bild 1, 2 und 3 werden Beispiele derselben gezeigt.
Automatische Beladungseinrichtungen werden in dieser Norm nicht behandelt.
Diese Norm gilt für elektrisch, pneumatisch und hydraulisch betriebene Maschinen. Von Hand betätigte
Maschinen sind vom Anwendungsbereich dieser Norm ausgeschlossen.
!gestrichener Text"
!Diese Norm behandelt die technischen Sicherheitsanforderungen an den Transport, die Installation, den
Betrieb, die Reinigung und die Wartung dieser Maschinen (siehe EN ISO 12100-1:2003, 5.2 und 5.3).
Diese Europäische Norm behandelt alle signifikanten Gefährdungen, Gefährdungssituationen und Gefährdungsereignisse,
die auf Tortelettmaschinen zutreffen, wenn sie bestimmungsgemäß und unter Bedingungen
von durch den Hersteller vernünftigerweise vorhersehbaren Fehlanwendungen verwendet werden (siehe
Abschnitt 4)."
Mehlstaub ist keine signifikante Gefährdung bei Tortelettmaschinen.
Für die Geräuschemmissionsangabe ist im Anhang B ein Geräuschtest enthalten, der dem Hersteller Hilfestellung
für die Messung des Geräuschpegels gibt.
Dieses Dokument gilt nicht für Tortelettmaschinen, die hergestellt wurden, bevor CEN dieses Dokument
veröffentlicht.
Machines pour les produits alimentaires - Fonceuses à tartes - Prescriptions relatives à la sécurité et à l'hygiène
La présente norme spécifie les prescriptions de sécurité et d'hygiène relatives à la conception et à la fabrication des machines utilisées pour la fabrication de pâtés, tartes, pâtisseries, aliments en croûte et autres produits similaires où la formation de fonds de tarte s'effectue par la fermeture d'un ou de plusieurs moules sous l'action de la pression. La norme s'applique aux trois types de base suivants de machines :
— les machines dans lesquelles les mains de l'opérateur pénètrent dans la zone dangereuse 1 (voir !4.2") à chaque cycle ;
— les machines qui sont chargées en dehors de la zone dangereuse 1 ;
— les machines automatiques.
Les Figures 1, 2 et 3 donnent des exemples de ces machines.
Les dispositifs de chargement automatique ne sont pas couverts par la présente norme.
La présente norme s'applique aux machines électriques, pneumatiques et hydrauliques. Les machines à fonctionnement manuel sont exclues du domaine d'application de la présente norme.
!texte supprimé"
!La présente norme couvre les prescriptions techniques de sécurité pour le transport, l'installation, le fonctionnement, le nettoyage et la maintenance de ces machines (voir 5.2 et 5.3 de l'EN 12100-1:2003).
La présente Norme européenne traite tous les phénomènes dangereux, situations et événements dangereux significatifs spécifiques engendrés par les élévateurs/basculeurs, lorsqu'ils sont utilisés normalement et dans les conditions de mauvaises utilisation raisonnablement prévisibles par le fabricant (voir Article 4)."
La poussière de farine n’est pas un phénomène dangereux significatif pour les fonceuses à tartes.
Un code d’essai acoustique est inclus en annexe B pour aider les fabricants à mesurer le niveau de bruit dans le but de faire la déclaration de bruit.
Le présent document n’est pas applicable aux machines qui ont été fabriquées avant la date de publication du présent document par le CEN.
Stroji za predelavo hrane - Stroji za izdelavo kolačev - Varnostne in higienske zahteve
Ta standard določa načrtovanje varnostnih in higienskih zahtev za izdelavo strojev, ki se uporabljajo za izdelavo kolačev, tort, proizvodov iz testene skorjice in ostalih podobnih izdelkov, kjer se oblike iz testa oblikujejo z zapiranjem pod pritiskom ene ali več oblikovalnih glav. Ta standard velja za naslednje osnovne tri tipe strojev: - stroji, kjer roke operaterja vstopajo nevarno cono 1 v vsakem ciklu; - stroji, ki so polnjeni zunaj nevarne cone 1; - samodejni stroji. Slike 1, 2 in 3 predstavljajo primere le-teh. Samodejne naprave za polnjenje niso zajete z tem standardom. Ta standard velja za stroje na električni, pnevmatični in hidravlični pogon. Ročno upravljani stroji so izvzeti iz obsega tega standarda. Ta standard zajema tehnične zahteve glede varnosti za prevoz, namestitev, delovanje, čiščenje in vzdrževanje teh strojev (glej 5.2 in 5.3 EN ISO 12100-1:2003). Ta evropski standard obravnava vse velike nevarnosti, nevarne situacije in primere, ki se tičejo strojev za izdelavo kolačev, kadar se uporabljajo, kot predvideno, in pod pogoji napačne uporabe, ki jih lahko razumno predvidi proizvajalec (glej Klavzulo 4). Prah moke ne predstavlja velike nevarnosti pri strojih za izdelavo kolačev. Preskusna koda hrupa je vključena v Dodatku B za pomoč proizvajalcem pri meritvah nivoja hrupa za namene deklaracije o emisijah hrupa. Ta dokument ne velja za stroje za izdelavo pit in kolačev, ki so bili izdelani pred datumom, ko je CEN objavil ta dokument.
General Information
Relations
Standards Content (Sample)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.]DKWHYHNahrungsmittelmaschinen - Tortelettmaschinen - Sicherheits- und HygieneanforderungenMachines pour les produits alimentaires - Fonceuses à tartes - Prescriptions relatives à la sécurité et à l'hygièneFood processing machinery - Pie and tart machines - Safety and hygiene requirements67.260Tovarne in oprema za živilsko industrijoPlants and equipment for the food industryICS:Ta slovenski standard je istoveten z:EN 13390:2002+A1:2009SIST EN 13390:2002+A1:2010en01-marec-2010SIST EN 13390:2002+A1:2010SLOVENSKI
STANDARD
SIST EN 13390:2002+A1:2010
EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 13390:2002+A1
December 2009 ICS 67.260 Supersedes EN 13390:2002English Version
Food processing machinery - Pie and tart machines - Safety and hygiene requirements
Machines pour les produits alimentaires - Fonceuses à tartes - Prescriptions relatives à la sécurité et à l'hygiène
Nahrungsmittelmaschinen - Tortelettmaschinen - Sicherheits- und Hygieneanforderungen This European Standard was approved by CEN on 11 November 2001 and includes Amendment 1 approved by CEN on 1 November 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 concerning 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 language 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, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION EUROPÄISCHES KOMITEE FÜR 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 13390:2002+A1:2009: ESIST EN 13390:2002+A1:2010
EN 13390:2002+A1:2009 (E) 2 Contents Page Foreword .3Introduction .41Scope .42Normative references .53Terms and definitions .64List of significant hazards .74.1General .74.2Mechanical hazards .74.3Electrical hazards .84.4Thermal hazard .84.5Hazards generated by neglecting hygienic design principles .84.6Hazards generated by neglecting ergonomic principles .84.7Hazards generated by noise .85Safety and hygiene requirements and/or protective measures .85.1General .85.2Mechanical hazards .95.3Electrical hazards . 115.4Thermal hazards . 125.5Hygiene requirements . 125.6Ergonomics . 135.7Noise reduction . 136Verification of safety requirements and/or measures . 147Information for use . 147.1General . 147.2Instruction handbook . 147.3Marking . 16Annex A (normative)
Principle of design to ensure the cleanability of pie and tart machines. 22A.1Terms and definitions . 22A.2Materials of construction . 22A.3Design . 23Annex B (normative)
Noise test code - Grade 2 accuracy . 42B.1Terms and definitions . 42B.2Installation and mounting conditions . 42B.3Operating conditions . 42B.4Emission sound pressure level determination . 42B.5Measurement uncertainties . 43B.6Information to be recorded . 43B.7Information to be reported . 43B.8Declaration and verification of noise emission values . 44Annex ZA (informative)
!!!!Relationship between this European Standard and the Essential Requirements of EU Directive 98/37EC"""" . 45Annex ZB (informative)
!!!!Relationship between this European Standard and the Essential Requirements of EU Directive 2006/42/EC"""" . 46Bibliography . 47 SIST EN 13390:2002+A1:2010
EN 13390:2002+A1:2009 (E) 3 Foreword This document (EN 13390:2002+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 given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by June 2010, and conflicting national standards shall be withdrawn at the latest by June 2010. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN [and/or CENELEC] shall not be held responsible for identifying any or all such patent rights. This document includes Amendment 1 approved by CEN on 1 November 2009. This document supersedes EN 13390:2002. 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 Directive(s)". !For relationship with EU Directives, see informative Annexes ZA and ZB, which are integral parts of this document." !deleted text" According 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, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom.
SIST EN 13390:2002+A1:2010
EN 13390:2002+A1:2009 (E) 4 Introduction !This European Standard is a type C standard as stated in EN ISO 12100. The machinery concerned and the extent to which hazards, hazardous situations and events are covered are indicated in the scope of this European Standard. 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 machines that have been designed and built according to the provisions of this type C standard." 1 Scope This standard specifies safety and hygienic design requirements for the manufacture of machines used for the production of pies, tarts, pasties, en croute products and other similar items where the pastry cases are formed by the closing under pressure of one or more forming heads.
The standard applies to the following three basic types of machine: machines where operators hands enter hazard zone 1 (see !4.2") at each cycle; machines which are loaded outside hazard
zone 1; automatic machines. Figure 1, 2 and 3 illustrate examples of these. Automatic loading devices are not covered by this standard. This standard applies to electrically, pneumatically and hydraulically powered machines.
Manually operated machines are excluded from the scope of this standard. !deleted text" !This standard covers the technical safety requirements for the transport, installation, operation, cleaning and maintenance of these machines (see 5.2 and 5.3 of EN ISO 12100-1:2003). This standard deals with all significant hazards, hazardous situations and events relevant to pie and tart machines, when they are used as intended and under the conditions of misuse which are reasonably foreseeable by the manufacturer (see Clause 4)." Flour dust is not a significant hazard at pie and tart machines. A noise test code is included in annex B to assist manufacturers to measure noise level for the purpose of the noise emission declaration. This document in not applicable to pie and tart machines which are manufactured before the date of publication of this document by CEN. SIST EN 13390:2002+A1:2010
EN 13390:2002+A1:2009 (E) 5 2 Normative 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 machinery — 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 EN 614-1:2006, Safety of machinery — Ergonomic design principles — Part 1: Terminology and general principles EN 953:1997, Safety of machinery — Guards - General requirements for the design and construction of fixed and movable guards EN 982:1996, Safety of machinery — Safety requirements for fluid power systems and their components — Hydraulics EN 983:1996, Safety of machinery — Safety requirements for fluid power systems and their components — Pneumatics EN 1088:1995, Safety of machinery — Interlocking devices associated with guards — Principles for design and selection EN 1672-2:2005, Food processing machinery — Basic concepts — Part 2: Hygiene requirements EN 60204-1:2006, Safety of machinery — Electrical equipment of machines — Part 1: General requirements (IEC 60204:2005, modified) EN 60529, Degrees of protection provided by enclosures (IP code) (IEC 60529:1989) EN ISO 3744:2009, 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 4287:1998, Geometrical Product Specifications (GPS) — Surface texture: Profile method — Terms, definitions and surface texture parameters (ISO 4287:1997) EN ISO 4871:2009, Acoustics — Declaration and verification of noise emission values of machinery and equipment (ISO 4871:1996) EN ISO 11201:2009, Acoustics — Noise emitted by machinery and equipment — Measurement of emission sound pressure levels at the work station and at other specified positions — Engineering method in an essentially free field over a reflecting plane (ISO 11201:1995, including Cor 1:1997) EN ISO 11688-1:2009, Acoustics — Recommended practice for the design of low noise machinery and equipment — Part 1: Planning (ISO/TR 11688-1:1995) EN ISO 12001:2009, Acoustics — Noise emitted by machinery and equipment — Rules for the drafting and presentation of a noise test code (ISO 12001:1996) 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 machinery — Basic concepts, general principles for design — Part 2: Technical principles (ISO 12100-2:2003) SIST EN 13390:2002+A1:2010
EN 13390:2002+A1:2009 (E) 6 EN ISO 13849-1:2008, Safety of machinery — Safety related parts of control systems — Part 1: General principles for design (ISO 13849-1:2006) EN ISO 13850:2008, Safety of machinery — Emergency stop — Principles for design (ISO 13850:2006)" 3 Terms and definitions For the purposes of this European Standard, the terms and definitions given in !EN ISO 12100-1:2003" and the following terms and definitions apply. 3.1 platform mould into which the die presses, which is mounted on a supporting surface (see Figure 2) 3.2 platen mould into which the die presses, which is integral with the supporting surface 3.3 die shaped tool for pressing the pastry into the desired shape with the corresponding platform or platen. It can be heated 3.4 false table device, shaped and dimensioned to fill the openings between the platforms on a rotating table machine through which access to hazard zone 1 may be gained (see Figure 6) 3.5 table frame series of radial webs, located between platforms, shaped and dimensioned to close the gap between the lower edge of the guard and the upper surface of the rotating table on which the platforms are located (see Figure 5) 3.6 blocking forming the pastry base 3.7 sheeter device for dispensing sheets of dough e.g. a hopper with a set of rollers at its base (see Figure 7) 3.8 crimping sealing the lid to the base 3.9 docking piercing the pastry with a spike 3.10 tamping levelling the filling SIST EN 13390:2002+A1:2010
EN 13390:2002+A1:2009 (E) 7 3.11 depositor device for dispensing a measured quantity of product (pastry or filling), usually comprising a hopper and a cut off device 4 List of significant hazards ! 4.1 General This clause contains all the significant hazards, hazardous situations and events, as far as they are dealt with in this standard, identified by risk assessment as significant for this type of machinery, and which require action to eliminate or reduce the risk." 4.2 Mechanical hazards The significant mechanical hazards are: crushing; cutting; severing; shearing; drawing in; trapping; loss of stability. The examples shown in Figures 1, 2 and 3 illustrate eight danger zones associated with the first six hazards: Zone 1: Zone between closing die and platform or platen Hazard of crushing, to upper parts of the body, for example during blocking or crimping Zone 2: Depositor cut off device Hazards of cutting or severing, to upper parts of the body Zone 3: Inrunning rollers of the sheeter Hazard of drawing in, to upper parts of the body Zone 4: Guillotine (where fitted) Hazard of cutting, to upper parts of the body Zone 5: Any moving table or conveyor and fixed parts Hazard of shearing, to any part of the body Zone 6: Conveyor nip points Hazards of drawing in and crushing, to upper part of the body Zone 7: Ejector unit Hazard of trapping, to upper parts of the body SIST EN 13390:2002+A1:2010
EN 13390:2002+A1:2009 (E) 8 Zone 8: Drive mechanisms Hazards of drawing in, crushing, cutting or severing, to any part of the body 4.3 Electrical hazards Hazard of electric shock from direct or indirect contact with live components. Hazard of external influences on electrical equipment, e.g. cleaning with water. 4.4 Thermal hazard Hazard of burning from hand contact with heated dies or platforms or hot external machine components. 4.5 Hazards generated by neglecting hygienic design principles Neglecting hygienic principles can create unacceptable modification of foodstuff and therefore a risk to human health, i.e. through physical, chemical or microbial contamination. 4.6 Hazards generated by neglecting ergonomic principles The hazard of unhealthy posture or excessive effort relating particularly to repeated hand and arm movements during loading and unloading of hand fed machines and manual loading of depositors and sheeters. 4.7 Hazards generated by noise Pie and tart machines can generate airborne noise which can result in hearing damage, in accidents due to interference with speech communication and in interference with the perception of acoustic signals. 5 Safety and hygiene requirements and/or protective measures ! 5.1 General Machinery shall comply with the safety requirements and/or protective measures of this clause.
In addition, the machine shall be designed according to the principles of EN ISO 12100-2 for relevant but not significant hazards, which are not dealt with by this document. For hazards which are to be reduced by the application of the type B-standards such as EN 294, EN 349, EN 614-1, EN 953, EN 982, EN 983, EN 1088, EN 60204-1, EN 60529, EN ISO 12100, EN ISO 13732-1 and EN ISO 13849-1, the manufacturer shall carry out a risk assessment to establish the requirements of the type B-standard. This specific risk assessment shall be part of the general risk assessment of the machine. Unless otherwise specified, interlocking guards shall be at least interlocking without guard locking as defined in EN 1088:1995, 4.2.1 and they shall comply with EN 1088:1995, Clauses 5 and 6. Unless stated otherwise, the safety related parts of the control systems shall present at least a performance level c defined in accordance with EN ISO 13849-1:2008. When fixed guards, or parts of the machine acting as such, are not permanently fixed e. g. by welding, their fixing systems shall remain attached to the guards or to the machinery when the guards are removed." SIST EN 13390:2002+A1:2010
EN 13390:2002+A1:2009 (E) 9 5.2 Mechanical hazards Pneumatically operated machines shall be designed and use components to meet the requirements of EN 983:1996. Hydraulic machines shall comply with EN 982:1996. Where reference is made to interlocking devices throughout clause 5, they shall comply with 4.2.1, 5 and 6 of EN 1088:1995. !Unless stated otherwise, the safety related parts of the control systems shall present at least a performance level c defined in accordance with EN ISO 13849-1:2008." All guards shall be constructed in accordance with EN 953:1997 in particular clauses 6 and 7. !deleted text" 5.2.1 Access to zone 1 5.2.1.1 Machines where the operator's hands enter the hazard zone at each cycle Access shall be prevented by provision of a moveable interlocking guard (Figure 4). The interlocking device chosen shall stop movement of the closing die before injury can occur. This may be achieved by a maximum stopping time of one second after any movement of the guard from close or use of guard locking (3.3 and 4.2.2, EN 1088:1995). Either power interlocking (4.1.2, EN 1088:1995) or control interlocking (4.1.1, EN 1088:1995) with a dual circuit may be used and devices shall comply with clauses 5 and 6 of EN 1088:1995. !The safety related parts of the control systems shall present at least a performance level d defined in accordance with EN ISO 13849-1:2008. The performance of the interlocking device(s) shall be compatible with this category or performance level, according to 7.6 of EN 1088:1995." 5.2.1.2 Machines which are loaded outside the hazard zone Access shall be prevented by a combination of fixed guards and moveable interlocking guards (3.2 and 4.2.1, EN 1088:1995) used if necessary in conjunction with false tables or table frames and adjustable sections so that all openings giving access to the hazard zone are minimized and a permanent warning sign showing the risk (see EN 61310-1) shall be fixed to the machine. Suitable false tables and/or frames shall be supplied for use with all dies/platforms provided with the machine. In relation to height of frames the minimum provision necessary for any particular size of mould is one frame corresponding to the deepest pie mould of that size. Means to avoid pastry fouling the guard shall be provided, for example, the frame webs may be higher than the pie moulds. Where shearing traps are created between guards and false tables or frames, injury shall be prevented by: limiting the force, with which the rotating table indexes round, to 75 N; using a device which causes the table to stop in a time less than or equal to 0,5 s (e.g. trip flaps). Figures 5 and 6 show examples of the use of table frames and false tables respectively. !When false tables or table frames are used means shall be provided to ensure that the machine cannot operate unless these are in place. This may be achieved by interlocking with the machine control circuit. Because of the technical difficulty of interlocking a rotating frame or table the use of proximity switches which comply with 5.7.3 and 6.3 of EN 1088:1995 is allowed. If adjustable guards are used the detection switch shall be fixed to the adjustable portion of the guard so that guard adjustment allowing only openings in accordance with Table 4 of EN 294:1992 is necessary to allow machine operation." SIST EN 13390:2002+A1:2010
EN 13390:2002+A1:2009 (E) 10 5.2.1.3 Automatic machines Access shall be prevented by a combination of fixed and movable interlocking guards (Figure 7). 5.2.2 Access to zone 2 During its operation, access to the depositor cut off device, shall be prevented. Access via the feed hopper may be prevented by fixed or movable interlocking guards whose dimensions comply with EN 294:1992, Table 4. Where the hopper itself is removable for cleaning access to the hazard zone shall be prevented. This may be achieved by interlocking the hopper itself. Where movable interlocking guards or removable hoppers are used, the stopping time shall be less than or equal to 0,5 s. Access via the discharge outlet shall be prevented by use of an outlet whose dimensions comply with EN 294:1992, Table 4 or by a suitable curved outlet tube designed to prevent access. Because of the need for accurate dispensing of product this may not always be achievable. The use of a piston mechanism (with a maximum force of 50 N) can be used to prevent access to the depositor cut off device. The residual risk of slight injury from these should be highlighted by a warning sign on the machine and in the machine instruction handbook. 5.2.3
Access to zone 3 Access to the inrunning rollers of the dough sheeter, shall be prevented. This may be achieved by a combination of fixed and movable interlocking guards to prevent access via the hopper. When an open hopper is used access may be prevented by use of swan neck extension, whose dimensions comply with Table 4 of EN 294:1992 (see Figure 7). 5.2.4 Access to zone 4 Access to the dough cutting guillotine shall be prevented. This may be achieved by fixed guarding (EN 953) to the infeed and outfeed conveyors which complies with the distance requirements in Table 4 of EN 294:1992. 5.2.5 Access to zone 5 The shearing hazard at zone 5 shall be eliminated as far as possible by design, for example careful location of structural members below moving conveyors with openings for foils. Access to any such traps through the foil dispensing magazine shall be prevented. This may be by the presence of the foils themselves if a sensing device e.g. a suitable photocell !(see EN 61496-1)" stops the machine before the magazine becomes empty and prevents it starting unless a foil is in place. A trip mechanism or flap may also be used to prevent injury at Zone 5. Movement of the mechanism or flap shall be interlocked to stop movement of the machinery before injury occurs. Figure 5 shows an example of a trip mechanism. In the case of rotating table machines the entire front guard may act as a trip mechanism. 5.2.6 Access to zone 6 Access to the inrunning nips shall be prevented by fixed guards complying with dimensions of Table 4 of EN 294:1992. For example a guard such as the one marked B in Figure 10, shall be fitted to prevent access to the inrunning nip. SIST EN 13390:2002+A1:2010
EN 13390:2002+A1:2009 (E) 11 5.2.7 Access to zone 7 Trapping points at the ejector unit shall be prevented by design in accordance with EN 349:1993, Table 1. Alternatively, the trapping hazard may be eliminated by observing the safety distances set out in EN 294:1992, Table 4 or by provision of an interlocked guard. 5.2.8 Access to zone 8 Access to hazards in the drive mechanism shall be prevented. This may be achieved by the use of fixed or movable and interlocked guards. 5.2.9 Loss of stability Machines shall be designed to be stable and shall comply !with 5.2.9.1 to 5.2.9.2" as applicable. For machines designed to be fixed to the floor, the instruction handbook shall indicate the values of forces at the fixing points. 5.2.9.1 Free standing machines without castors shall be stable when tilted 10° from the horizontal plane in the most unfavourable direction. 5.2.9.2 Free standing machines with castors shall have at least two castors (or sets of castors) fitted with a locking device, and shall comply with the provisions !of 5.2.9.1". ! 5.3 Electrical hazards 5.3.1 General Electrical equipment shall comply with EN 60204-1. Electrical equipment, for example switches, that may be exposed to water, e. g. during cleaning, shall be protected to an appropriate IP rating according to EN 60529 and EN 60204-1. 5.3.2 Safety requirements related to electromagnetic phenomena
The machines shall have sufficient immunity to electromagnetic disturbances to enable them to operate safely as intended and not fail to danger when exposed to the levels and types of disturbances intended by the manufacturer. The manufacturer of the machines shall design, install and wire the equipment and sub-assemblies taking into account the recommendations of the suppliers of these sub-assemblies. 5.3.3 Protection against electric shock The electrical equipment shall comply with Clause 6 of EN 60204-1:2006. 5.3.4 Power circuits Devices for detection and interruption of over-current shall be applied to each live conductor in compliance with EN 60204-1:2006, 7.2.3. In case of single phase machines, no such device is required for the earthed neutral conductor. SIST EN 13390:2002+A1:2010
EN 13390:2002+A1:2009 (E) 12 5.3.5 Protection against earth faults in control circuits For machinery supplied from a single-phase conductor and an earthed neutral conductor, there is no requirement for double pole interruption of the control circuit. The single pole interruption shall be in the phase conductor (see 9.4.3.1 of EN 60204-1:2006). 5.3.6 Emergency stop For machines where the operator's hands enter the hazard zone at each cycle and guarded according to 5.2.1.1 (see Figure 1), an emergency stop is not required. A nor
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