SIST EN 13954:2006+A1:2010
(Main)Food processing machinery - Bread slicers - Safety and hygiene requirements
Food processing machinery - Bread slicers - Safety and hygiene requirements
This European Standard specifies safety and hygiene requirements for the design and manufacture of bread slicing machines of type 1 and 2 as defined in Clause 3. The intended use of these machines is to cut baked bread into slices. This European Standard deals with all significant hazards, hazardous situations and events relevant to bread slicers machines, when they are used as intended and under conditions of misuse which are reasonably foreseeable by the manufacturer (see Clause 4). This European Standard covers requirements for the safe operation of the machine including: loading, cutting, unloading, cleaning, crumb removal and maintenance. These machines can be manually or automatically operated. The following machines are excluded from the scope of this document: - experimental and testing machines under development by the manufacturer; - frame cutter machines with multiple blades moving horizontally; - domestic appliances and machines intended for use by the general public; - machines with horizontal circular cutting systems; - rectangular cutting machines for cutting or sawing of panel size products into small pieces. The significant hazards covered by this document are described in Clause 4. In drafting this European Standard, it has been assumed that the bread slicers falling within the scope are operated only by trained personnel and that the machines are not intended to be cleaned with water jet. This European Standard is not applicable to bread slicing machines which are manufactured before the date of publication of this European Standard.
Nahrungsmittelmaschinen - Brotschneidemaschinen - Sicherheits- und Hygieneanforderungen
Diese Europäische Norm spezifiziert Sicherheits- und Hygieneanforderungen für die Konstruktion und
Herstellung von Brotschneidemaschinen des Typ 1 und 2, wie sie in Abschnitt 3 definiert sind.
Diese Maschinen sind dazu bestimmt, gebackenes Brot in Scheiben zu schneiden.
Diese Europäische Norm erfasst signifikante Gefährdungen, Gefährdungssituationen und Ereignisse in
Verbindung mit Brotschneidemaschinen, wenn diese so genutzt werden, wie vorgesehen und unter den vom
Hersteller vorhersehbaren Missbrauch bzw. Fehlbedienungen (siehe Abschnitt 4).
Diese Europäische Norm befasst sich mit den Anforderungen an die sichere Verwendung der Maschine
inklusive Beschicken, Schneiden, Entladen, Reinigung (Entfernen der Krumen) und Instandhaltung.
Diese Maschinen können manuell oder automatisch betrieben werden.
1.2 Folgende Maschinen fallen nicht unter den Anwendungsbereich dieser Norm:
⎯ Testanlage in der Entwicklung beim Hersteller;
⎯ Gattermaschinen mit mehreren sich horizontal bewegenden Messern;
⎯ Haushaltsgeräte oder Maschinen für Allgemeingebrauch;
⎯ Maschinen mit horizontal wirkenden Schneidesystemen;
⎯ Maschine für das Schneiden oder Sägen von Scheiben in kleine rechteckige Stücke.
Die von dieser Norm abgedeckten signifikanten Gefährdungen sind in Abschnitt 4 beschrieben.
1.3 Bei der Erstellung dieser Norm wurde davon ausgegangen, dass die betreffenden Brotschneidmaschinen
nur von geschultem Personal bedient werden und nicht mit einem Wasserstrahl zu reinigen sind.
1.4 Diese Europäische Norm ist nicht für Maschinen anzuwenden, die vor dem Erscheinungsdatum dieser
Europäischen Norm hergestellt wurden.
Machines pour les produits alimentaires - Machines à couper le pain - Prescriptions relatives à la sécurité et à l'hygiène
1.1 La présente Norme européenne spécifie les prescriptions de sécurité et d’hygiène relatives à la conception
et à la construction des machines à couper le pain de Types 1 et 2 tels que définis à l’Article 3.
L’utilisation normale de ces machines consiste à couper du pain en tranches.
La présente Norme européenne traite de tous les phénomènes dangereux, situations et événements dangereux
significatifs relatifs aux machines à couper le pain, lorsque celles-ci sont utilisées normalement et dans les conditions
d’utilisation abusive qui peuvent raisonnablement être prévues par le fabricant (voir Article 4).
La présente Norme européenne couvre les prescriptions relatives à la sécurité d’utilisation de ces machines,
notamment lors du chargement, de la coupe, du déchargement, du nettoyage, de l’évacuation des miettes et des
opérations de maintenance.
Ces machines peuvent fonctionner manuellement ou automatiquement.
1.2 Les machines suivantes sont exclues du domaine d’application du présent document :
- machines expérimentales ou d’essai en cours de mise au point par le fabricant ;
- machines à découper à lames multiples se déplaçant horizontalement ;
- appareils domestiques et machines destinées à être utilisées par le grand public ;
- machines à système de coupe circulaire horizontal ;
- portionneuses.
Les phénomènes dangereux significatifs couverts par le présent document sont décrits à l’Article 4.
1.3 Lors de la rédaction de la présente Norme européenne, il a été supposé que les machines à couper le pain
relevant du domaine d’application ne sont utilisées que par du personnel qualifié et que les machines ne sont pas
destinées à être lavées au jet d’eau.
1.4 La présente Norme européenne ne s’applique pas aux machines à couper le pain qui sont construites avant
la date de publication de la présente Norme européenne par le CEN.
Stroji za predelavo hrane - Rezalniki kruha - Varnostne in higienske zahteve (vključno z dopolnilom A1)
Ta evropski standard določa varnostne in higienske zahteve za načrtovanje in izdelavo rezalnikov kruha vrste 1 in 2, kot je določeno v Klavzuli 3. Namen teh naprav je rezanje pečenega kruha na rezine. Ta evropski standard obravnava velike nevarnosti, nevarne situacije in primere, ki se nanašajo na rezalnike kruha, kadar se uporabljajo kot predvideno in pod pogoji napačne uporabe, ki jih razumno predvidi proizvajalec (glej Klavzulo 4). Ta evropski standard zajema zahteve za varno delovanje naprave vključno z: polnjenjem, rezanjem, praznjenjem, čiščenjem, odstranjevanjem drobtin in vzdrževanjem. Te naprave se lahko upravlja ročno ali avtomatsko. Iz obsega tega dokumenta so izvzete naslednje naprave: - poskusne in preskusne naprave, ki jih razvija proizvajalec; - naprave za rezanje v okvirju z več rezili, ki se premikajo vodoravno; - gospodinjski aparati in naprave, namenjene uporabi za splošno javnost; - naprave z vodoravnimi krožnimi rezalnimi sistemi; - naprave za pravokotno rezanje za rezanje ali žaganje proizvodov v obliki plošče v majhne koščke. Velike nevarnosti, zajete z tem dokumentom, so opisane v Klavzuli 4. V osnutku tega evropskega standarda je bilo predvideno, da rezalnike kruha, ki so zajeti s tem dokumentom, upravlja usposobljeno osebje ter da naprave niso namenjene za čiščenje z vodnim curkom. Ta evropski standard ne velja za rezalnike kruha, ki so proizvedeni pred datumom, ko je CEN objavil ta evropski standard.
General Information
Relations
Standards Content (Sample)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Nahrungsmittelmaschinen - Brotschneidemaschinen - Sicherheits- und HygieneanforderungenMachines pour les produits alimentaires - Machines à couper le pain - Prescriptions relatives à la sécurité et à l'hygièneFood processing machinery - Bread slicers - Safety and hygiene requirements67.260Tovarne in oprema za živilsko industrijoPlants and equipment for the food industryICS:Ta slovenski standard je istoveten z:EN 13954:2005+A1:2010SIST EN 13954:2006+A1:2010en,fr01-junij-2010SIST EN 13954:2006+A1:2010SLOVENSKI
STANDARDSIST EN 13954:20061DGRPHãþD
SIST EN 13954:2006+A1:2010
EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 13954:2005+A1
March 2010 ICS 67.260 Supersedes EN 13954:2005English Version
Food processing machinery - Bread slicers - Safety and hygiene requirements
Machines pour les produits alimentaires - Machines à couper le pain - Prescriptions relatives à la sécurité et à l'hygiène
Nahrungsmittelmaschinen - Brotschneidemaschinen - Sicherheits- und Hygieneanforderungen This European Standard was approved by CEN on 8 August 2005 and includes Amendment 1 approved by CEN on 17 January 2010.
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, Croatia, 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 © 2010 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 13954:2005+A1:2010: ESIST EN 13954:2006+A1:2010
EN 13954:2005+A1:2010 (E) 2 Contents Page Foreword .3Introduction .41Scope .52Normative references .53Terms, definitions and description .63.1Terms and definitions .63.2Description .74List of significant hazards . 104.1General . 104.2Mechanical hazards . 104.3Electrical hazards . 134.4Lack of hygiene . 134.5Hazards generated by neglecting ergonomic principles . 134.6Hazards from cleaning and handling . 134.7Noise . 145Safety and hygiene requirements and/or protective measures . 145.1General . 145.2Mechanical hazards . 145.3Electrical hazards . 205.4Hygiene requirements . 215.5Hazards generated by neglecting ergonomic principles . 225.6Hazards from cleaning and handling . 235.7Noise reduction . 236Verification of safety and hygiene requirements and/or measures . 237Information for use . 247.1Instruction handbook . 247.2Marking . 26Annex A (normative)
Noise test code for bread slicers (Grade 2 of accuracy) . 27Annex B (normative)
Principles of design to ensure the cleanability of bread slicers . 30Annex ZA (informative)
!Relationship between this European Standard and the Essential Requirements of EU Directive 98/37/EC, amended by 98/79/EC" . 49Annex ZB (informative)
!Relationship between this European Standard and the
Essential Requirements of EU Directive 2006/42/EC" . 50Bibliography . 51 SIST EN 13954:2006+A1:2010
EN 13954:2005+A1:2010 (E) 3 Foreword This document (EN 13954:2005+A1:2010) 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 September 2010, and conflicting national standards shall be withdrawn at the latest by September 2010. This document includes Amendment 1, approved by CEN on 2010-01-17. This document supersedes EN 13954:2005. 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. 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 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 Directive(s), see informative Annexes ZA and ZB, which are integral parts of this document." This European Standard is complementary to EN 14655:2005 that is covering bread slicing machines with crescent blade(s) (type 3). 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, Croatia, 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.
SIST EN 13954:2006+A1:2010
EN 13954:2005+A1:2010 (E) 4 Introduction There are various types of bread slicing machines. They are divided mainly into the following types: Type 1: Frame cutter machines with multiple blades moving vertically; Type 2: Machines with rotary crescent (sickle) or circular blade fixed to a shaft with oscillating movement and horizontal manual loading; Type 3: Machines with crescent blade fixed to a shaft, with a rotating movement and vertical manual loading; Type 4: Machines with one or more rotating band blades. 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 that 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. SIST EN 13954:2006+A1:2010
EN 13954:2005+A1:2010 (E) 5 1 Scope 1.1 This European Standard specifies safety and hygiene requirements for the design and manufacture of bread slicing machines of type 1 and 2 as defined in Clause 3. The intended use of these machines is to cut baked bread into slices. This European Standard deals with all significant hazards, hazardous situations and events relevant to bread slicers machines, when they are used as intended and under conditions of misuse which are reasonably foreseeable by the manufacturer (see Clause 4). This European Standard covers requirements for the safe operation of the machine including: loading, cutting, unloading, cleaning, crumb removal and maintenance. These machines can be manually or automatically operated. 1.2 The following machines are excluded from the scope of this document: experimental and testing machines under development by the manufacturer; frame cutter machines with multiple blades moving horizontally; domestic appliances and machines intended for use by the general public; machines with horizontal circular cutting systems; rectangular cutting machines for cutting or sawing of panel size products into small pieces. The significant hazards covered by this document are described in Clause 4. 1.3 In drafting this European Standard, it has been assumed that the bread slicers falling within the scope are operated only by trained personnel and that the machines are not intended to be cleaned with water jet. 1.4 This European Standard is not applicable to bread slicing machines which are manufactured before the date of publication of this European Standard. 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 349, 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 design and construction of fixed and movable guards 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 SIST EN 13954:2006+A1:2010
EN 13954:2005+A1:2010 (E) 6 EN 60204-1:2006, Safety of machinery — Electrical equipment of machines — Part 1: General requirements (IEC 60204:2005, modified) EN 60529:1991, Degrees of protection provided by enclosures (IP code) (IEC 60529:1989) EN 61310-1, Safety of machinery — Indication, marking and actuation — Part 1: Requirements for visual, auditory and tactile signals (IEC 61310-1:1995) EN 61496-1:2004, Safety of machinery — Electro-sensitive protective equipment — Part 1: General requirements and tests (IEC 61496-1:2004, modified) 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 4287:1997, Geometrical Product Specifications (GPS) — Surface texture: Profile method — Terms, definitions and surface texture parameters (ISO 4287:1997) EN ISO 4871:1996, Acoustics — Declaration and verification of noise emission values of machinery and equipment (ISO 4871:1996) EN ISO 11201:1995, 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) EN ISO 11688-1:1998, Acoustics — Recommended practice for the design of low noise machinery and equipment — Part 1: Planning (ISO 11688-1:1995) EN ISO 12001:1996, 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 and specifications (ISO 12100-2:2003) 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 13857:2008, Safety of machinery — Safety distances to prevent hazard zones being reached by the upper limbs (ISO 13857:2008)" 3 Terms, definitions and description 3.1 Terms and definitions For the purposes of this European Standard, the terms and definitions given in EN ISO 12100-1:2003 and the following apply. 3.1.1 type 1 machines bread slicers with reciprocating multiple blades moving vertically 3.1.2 type 2 machines machines with rotary crescent (sickle) or circular blade fixed to a shaft with oscillating or rotating movement and horizontal manual loading SIST EN 13954:2006+A1:2010
EN 13954:2005+A1:2010 (E) 7 3.2 Description 3.2.1 Type 1 machines Type 1 bread slicers usually consist of a frame supporting the following main elements (see example in Figure 1):
SIST EN 13954:2006+A1:2010
EN 13954:2005+A1:2010 (E) 8
Figure 1.1 — type 1a Figure 1.2 —type 1b
Figure 1.3 — type 1c Key 1 crumb tray; 2 discharge area or device; 3 cutting device: multiple blades which have reciprocating motion; 4 infeed area or device; 5 feed device (e.g. pusher, special conveyor belt), which pushes and guides the loaf of bread for the cutting action; 6 drive mechanisms; 7 electrical controls.
Figure 1 — Example of a bread slicer of type 1 According to the way the bread is brought to the slicing tool, the following distinctions are made: SIST EN 13954:2006+A1:2010
EN 13954:2005+A1:2010 (E) 9 Type 1a "hand operated machines" (Figure 1.1): the loaf of bread is pushed by a manual pusher. The machine is equipped with a lever which acts at the same time as a start/stop control device. Type 1b "automatic machines" (Figure 1.2): the bread is pushed by a power operated mechanical pusher. A control device allows to activate the blades and the pusher until the bread is totally cut and the pusher has come back to the feeding position. Then the machine stops and the cycle is finished. The next loaf of bread is placed manually in front of the pusher. Type 1c "automatic machines with continuous feeding" (Figure 1.3): the machine is fed manually or continuously and the loaves of bread are brought to the blades by (a) conveyor belt(s). 3.2.2 Type 2 machines A type 2 bread slicing machine consists of a machine frame supporting the following main elements: (see example in Figure 2):
Key 1 feed device in a feed trough; 2 blade housing; 3 rotary (sickle) crescent or circular blade; 4 discharge trough; 5 crumb tray
Figure 2 — Bread slicing machine of type 2 with discharge trough The machine housing holds associated drives, electrical and/or hydraulic and pneumatic components, depending on the machine type. Type 2 bread slicing machines in the scope of this document may be equipped with an in-feed conveyor belt, a discharge conveyor belt, and SIST EN 13954:2006+A1:2010
EN 13954:2005+A1:2010 (E) 10 an oiling mechanism for the blade. The bread to be cut is laid upon the feed device and transported to the cutting chamber to be cut. The slices are discharged into the discharge trough or onto a conveyor. 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 document, 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 4.2.1 The significant mechanical hazards for type 1 machines are: cutting hazard; drawing in hazard; shearing hazard; loss of stability. The examples shown in Figure 3 illustrates 4 danger zones associated with these hazards: Zone 1: Access to cutting side of blades through infeed area.
Hazards of cutting. Zone 2: Access to cutting side of blades through discharge area.
Hazards of cutting. Zone 3: Access to cutting side of blades and to other moving parts of the machine through the crumb tray opening, when it is removed.
Hazards of shearing, drawing in, cutting. Zone 4: Access to all moving parts (e.g. drive mechanisms) through other sides of the machine.
Hazards of shearing, drawing in. SIST EN 13954:2006+A1:2010
EN 13954:2005+A1:2010 (E) 11
Figure 3.a Figure 3.b
Figure 3.c Key 1 Zone 1 2 Zone 2 3 Zone 3 4 Zone 4 Figure 3 — Danger zones of
bread slicers of type 1 4.2.2 The significant mechanical hazards for type 2 machines are listed below: crushing hazard; shearing hazard; severing hazard; entanglement hazard; cutting hazard; drawing-in hazard; SIST EN 13954:2006+A1:2010
EN 13954:2005+A1:2010 (E) 12 loss of stability. The example shown in Figure 4 illustrates 8 danger zones associated with these hazards: Zone 1: Movement of the feed device in feed trough.
Crushing or shearing and cutting or severing hazard to fingers or hand. Zone 2: Rotating blade in cutting area, access from feed trough.
Entanglement, cutting or severing hazard to fingers or hand. Zone 3: Rotating blade in cutting area, access via discharge trough.
Entanglement, cutting or severing hazard to fingers or hand. Zone 4: Rotating blade in the blade housing.
Cutting or severing hazard to fingers or hand.
Breakage of blade or detachment of blade mounting.
Hazard caused by ejected parts. Zone 5: Rotating blade, access via the crumb tray.
Entanglement, cutting or severing hazard to fingers or hand. Zone 6: Drive mechanisms of blade and feed device/ bread holder.
Crushing, shearing or drawing-in hazard to fingers or hand. Zone 7: Outlet conveyor belt.
Entanglement, drawing-in or crushing hazard to fingers or hand. Zone 8: Unintentional or intentional closing of machine parts.
Crushing hazard to fingers or hand. SIST EN 13954:2006+A1:2010
EN 13954:2005+A1:2010 (E) 13
Key 1 Zone 1 2 Zone 2 3 Zone 3 4 Zone 4 5 Zone 5 6 Zone 6 7 Zone 7 8 Zone 8 Figure 4 — Danger zones on a bread slicing machine of type 2 with discharge trough and outlet conveyor belt
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 and dust generated by slicing the bread). 4.4 Lack of hygiene Lack of hygiene can create a risk to human health and unacceptable alteration of foodstuff e.g. contamination by microbial growth or foreign materials. 4.5 Hazards generated by neglecting ergonomic principles Risk of injury or chronic damage to the body resulting from harmful body postures during operation, cleaning and maintenance. 4.6 Hazards from cleaning and handling Cutting while cleaning, whereas the blades are stopped. Cutting while removing the blade assembly. SIST EN 13954:2006+A1:2010
EN 13954:2005+A1:2010 (E) 14 4.7 Noise Bread slicers can generate airborne noise which can result in hearing damage and in accidents due to interference with speech communication and due to 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 ISO 13857, EN 614-1, EN 953, EN 1088, EN 60204-1, EN 60529, EN ISO 12100 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. 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." 5.2 Mechanical hazards 5.2.1 Mechanical hazards for type 1 machine 5.2.1.1 General Where interlocking guards are required, they shall be at least with interlocking devices without guard locking and comply with 4.2.1, Clauses 5 and 6 of EN 1088:1995. !The safety related parts of the control systems shall meet a performance level c and at least category 1 in accordance with EN ISO 13849-1:2008." Guards shall comply with EN 953 and !EN ISO 13857". 5.2.1.2 Zone 1: Infeed area 5.2.1.2.1 Type 1a machines (hand operated) The slicing area shall be protected by the combination of the machine frame and the following: either by the provision of an interlocked guard complying with !EN ISO 13857:2008", Table 4; or by a frame preventing from unintentional contact with the blades, generally as shown in Figure 5 having a minimum depth of 120 mm (distance from edge of frame to slicing blades). SIST EN 13954:2006+A1:2010
EN 13954:2005+A1:2010 (E) 15
Key 1 cutting side of slicing blades 2 frame d distance from edge of frame to slicing blades Figure 5 — Minimum distance The operating lever shall command the start function of the blades. If the lever is released the machine shall stop and the lever shall return to the rest position ("hold-to-run"). The design of the bread pusher and the comb shall prevent access to the blades at the end of the pusher’s movement. On machines where the frame supporting the blades moves relative to the machine frame, the crushing hazard between the blade frame and the machine frame shall be avoided. To achieve this, the maximum clearance between the blade frame and the machine frame, where accessible, shall be less than 4 mm. 5.2.1.2.2 Type 1b machines (automatic) The slicing blades and in-feed device shall be protected by one of the following methods: an interlocking guard, which prevents access to the cutting side of the blades and the infeed device; or a control guard, complying with 5.4.9 of EN 953:1997, which when closed prevents access to the cutting side of the blades and the infeed device and initiates the operation of the blades and the in-feed device; or !an active opto-electronic protective device (AOPD) of type 2 in accordance with EN 61496-1:2004, while the related part of the control system shall meet a performance level d and category 3 in accordance with EN ISO 13849-1:2008." In all cases, the dimensions of any openings in the guard shall be in accordance with Table 4 of
!EN ISO 13857:2008". Opening of the guard or actuation of the active opto-electronic protective device shall cause the machine to stop in the shortest possible time, but in no case exceed 1 s. 5.2.1.2.3 Type 1c machines (automatic with continuous feeding) The slicing blades and in-feed device shall be protected by an interlocking guard. The safety distance from the edge of the bread in-feed opening to the nearest danger zone shall be greater than or equal to 850 mm. The height of the opening of the tunnel shall be limited to 200 mm. SIST EN 13954:2006+A1:2010
EN 13954:2005+A1:2010 (E) 16 !An alternative solution consists in fitting an active opto-electronic protective device (AOPD) in accordance with EN 61496-1:2004, while the related part of the control system shall meet a performance level d and category 3 in accordance with EN ISO 13849-1:2008." Opening of the guard or actuation of the active opto-electronic protective device shall cause the machine to stop in the shortest possible time, but in no case exceed 1 s. 5.2.1.3 Zone 2: Discharge area On the discharge side, only the uncutting sides of the blades shall be exposed. To prevent access to the cutting side of the blades, the gap between or around individual blades shall be less than 25 mm. The crushing hazard between the blade frame and the machine frame shall be avoided. To achieve this, the maximum clearance between the blade frame and the machine frame, where accessible, shall be less than 4 mm, or the clearance between the blade frame and the machine frame shall be in accordance with EN 349. 5.2.1.4 Zone 3: Crumb tray Means shall be implemented to reduce risks to personnel after removal of the crumb tray. For “automatic” (type 1b) and “automatic with continuous feeding” (type 1c) machines, access to the cutting side of the blades and to other moving parts shall be prevented. This can be achieved by designing the inside of the machine to comply with Table 4 of !EN ISO 13857:2008". If not, the crumb tray shall be interlocked. For “hand operated” machines (type 1a), if removal of the crumb tray allows access to the cutting side of the slicing blades and to other moving parts, they shall either conform to the requirements of an automatic machine or fit a warning sign (see examples in Figure 6) in accordance with EN 61310-1. !
" Figure 6 — Example of warning signs 5.2.1.5 Zone 4: Drive mechanisms Access to drive mechanisms shall be prevented. This can be achieved by housing them within the machine frame. Any opening in the machine frame shall have a fixed or interlocking guard. SIST EN 13954:2006+A1:2010
EN 13954:2005+A1:2010 (E) 17 5.2.2 Mechanical hazards for type 2 machines 5.2.2.1 Guards and interlocking devices 5.2.2.1.1 General Guards shall comply with EN 953 and !EN ISO 13857". Interlocking devices shall comply with EN 1088. !Unless specified otherwise in specific clauses, parts of the control system associated with guard interlocking shall: for guards preventing access to the rotating blade meet a performance level d and at least category 3 in accordance with EN ISO 13849-1:2008, and for other guards meet a performance level c and at least of category 1 in accordance with
EN ISO 13849-1:2008." Under normal stopping conditions, the blade shall come to a standstill in such a position that the cutting edge of the blade does not protrude into the cutting area. 5.2.2.1.2 Specific requirements for interlocking devices without guard locking, associated with guards preventing from access to the blade This solution shall only be used if after activation of the device the blade stops within the shortest stopping time from the following: 0,5 s, or a half rotation for a rotating blade/a half cycle of oscillating blades. If necessary for achieving these objectives a braking device shall be provided. Otherwise the interlocking device shall be with guard locking in accordance with 5.2.2.1.3. The interlocking device shall be activated after opening of the guard by more than 10 mm. The specified stopping time shall also be achieved after actuation of the emergency stop, or in the event of a power failure. Instruction for use shall recommend regular inspection and maintenance, and define the elements to be check in order to maintain operating effectiveness of the braking device. 5.2.2.1.3 Specific requirements for interlocking devices with guard locking, associated with guards preventing from access to the blade !The safety related parts of the monitoring system shall meet at least a performance level c and at least category 1 in accordance with EN ISO 13849-1:2008." The locking shall be effective even in the event of a power failure. 5.2.2.2 Zone 1: Movement of the feed device in feed trough Unless hazards can be eliminated by design in accordance with 4.2 of EN ISO 12100-2:2003 access shall be prevented by the use of a control guard according to 5.4.9 of EN 953:1997. 5.2.2.3 Zone 2: Rotating blade in
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