SIST EN 12041:2001+A1:2009
(Main)Food processing machinery - Moulders - Safety and hygiene requirements
Food processing machinery - Moulders - Safety and hygiene requirements
This standard applies to the design and manufacture of dough moulders of the types described in 3.1, 3.2 and 3.3 and illustrated in figures 3a, 3b and 3c. These moulders are used in the food industry and shops (bread making, pastry making, sweet industries, bakeries, confectioners, delicatessens, catering facilities, etc.) for flattening, rolling and elongating pieces of dough.
Other designs of moulder and type 1 moulders designed for other than hand crafted products using soft dough, e. g. French baguettes, are not covered by this standard.
The standard covers the technical safety and hygiene requirements for the design, manufacture, installation, adjustment, operation, cleaning and maintenance of these machines, as defined in 3.12 of EN 292 1:1991 and in the manufacturer's instruction handbook.
The significant hazards covered by this standard are mechanical (drawing in, trapping, entanglement, crushing, loss of stability), electrical, ergonomic and also those resulting from inhalation of flour dust and lack of hygiene.
Noise is not considered to be a significant hazard by moulders. This does not mean that the manufacturer of the machine is absolved from reducing noise and making a noise declaration. Therefore a noise test code is proposed in Annex B.
The following machines are excluded:
- experimental and testing machines under development by the manufacturer;
- domestic appliances;
- bagel machines.
This standard applies only to machines manufactured after the date of approval by CEN.
Nahrungsmittelmaschinen - Langwirkmaschinen - Sicherheits- und Hygieneanforderungen
Diese Norm gilt für die Gestaltung/Konstruktion und Herstellung von Langwirkmaschinen der in 3.1, 3.2 und
3.3 beschriebenen und in den Bildern 3a, 3b und 3c gezeigten Typen. Diese Langwirkmaschinen werden in
der Nahrungsmittelindustrie und in Geschäften (Bäckereien, Konditoreien, Süßwarenindustrie, Delikatessenhersteller,
Versorgungsbetriebe etc.) eingesetzt, um Teigstücke zu ebnen, auszuwalzen und zu längen.
Andere Konstruktionen von Langwirkmaschinen und Langwirkmaschinen vom Typ1, die für andere, nicht
handgemachte Produkte gestaltet wurden, die weichen Teig verwenden, z. B. französisches Baguette, sind
nicht durch diese Norm abgedeckt.
Diese Norm umfasst die in !EN ISO 12100-2003, 3.22" und in der Betriebsanleitung des Herstellers
definierten technischen Sicherheits- und Hygieneanforderungen für die Installation, das Einrichten, die
Bedienung, Reinigung und Wartung dieser Maschinen.
Die signifikanten Gefährdungen, die durch diese Norm abgedeckt sind, sind mechanische (Einziehen,
Fangen, Erfassen/Aufwickeln, Quetschen, Verlust der Standfestigkeit), elektrische, ergonomische und auch
solche die durch Einatmen von Staub und die Vernachlässigung hygienischer Prinzipien hervorgerufen
werden.
Geräusche werden nicht als signifikante Gefährdung an Langwirkmaschinen angesehen. Dies bedeutet nicht,
dass der Hersteller dieser Maschine davon befreit ist, Maßnahmen zur Geräuschreduzierung zu treffen und
Angaben zu den Geräuschen zu machen. Deshalb sind in Anhang B dieser Norm Regeln zur Geräuschmessung
enthalten.
Die folgenden Maschinen sind ausgenommen:
⎯ Versuchs- und Prüfmaschinen, die in der Entwicklung beim Hersteller sind;
⎯ Haushaltsgeräte;
⎯ Bagelmaschinen.
Diese Norm bezieht sich nur auf Maschinen, die nach der Annahme dieser Norm durch das CEN hergestellt
werden.
Machines pour les produits alimentaires - Façonneuses - Prescriptions relatives à la sécurité et à l'hygiène
La présente norme s'applique à la conception et à la construction des façonneuses dont les types sont décrits aux paragraphes 3.1, 3.2 et 3.3 et illustrés par les figures 3a, 3b et 3c. Les façonneuses sont utilisées dans l'industrie alimentaire et les commerces de l'alimentation (boulangerie, pâtisserie, confiserie, traiteur, restauration, etc.) pour laminer, rouler et allonger les pâtons.
Les autres conceptions de façonneuses et les façonneuses de type 1 conçues pour des produits autres que les baguettes de type français ne sont pas couvertes par la présente norme.
La norme couvre les prescriptions techniques de sécurité et d'hygiène relatives à la conception, la construction, l'installation, le réglage, le fonctionnement, le nettoyage et la maintenance de ces machines, comme défini dans !l’EN ISO 12100-1:2003, paragraphe 3.22", et dans la notice d'instructions du fabricant.
Les phénomènes dangereux significatifs couverts par la présente norme sont mécaniques (entraînement, emprisonnement, happement, écrasement, perte de stabilité), électriques, ergonomiques et aussi ceux résultant de l'inhalation de poussière de farine et du manque d'hygiène.
Le bruit n’est pas considéré comme un risque significatif pour les façonneuses. Cela ne signifie pas que le fabricant de la machine est dispensé de réduire le bruit et de faire la déclaration de bruit. Pour ce faire, un code d’essai acoustique est proposé en annexe B.
Les machines suivantes sont exclues :
- les machines expérimentales ou d'essais en cours de mise au point par le fabricant ;
- les appareils à usage domestique ;
- les façonneuses pour bagel.
Cette norme s'applique seulement aux machines fabriquées après la date de ratification de la norme par le CEN.
Stroji za predelavo hrane - Stroji za vzdolžno oblikovanje testa - Varnostne in higienske zahteve
General Information
Relations
Standards Content (Sample)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Stroji za predelavo hrane - Stroji za vzdolžno oblikovanje testa - Varnostne in higienske zahteveNahrungsmittelmaschinen - Langwirkmaschinen - Sicherheits- und HygieneanforderungenMachines pour les produits alimentaires - Façonneuses - Prescriptions relatives à la sécurité et à l'hygièneFood processing machinery - Moulders - Safety and hygiene requirements67.260Tovarne in oprema za živilsko industrijoPlants and equipment for the food industryICS:Ta slovenski standard je istoveten z:EN 12041:2000+A1:2009SIST EN 12041:2001+A1:2009en01-oktober-2009SIST EN 12041:2001+A1:2009SLOVENSKI
STANDARD
SIST EN 12041:2001+A1:2009
EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 12041:2000+A1
August 2009 ICS 67.260 Supersedes EN 12041:2000English Version
Food processing machinery - Moulders - Safety and hygiene requirements
Machines pour les produits alimentaires - Façonneuses - Prescriptions relatives à la sécurité et à l'hygiène
Nahrungsmittelmaschinen - Langwirkmaschinen - Sicherheits- und Hygieneanforderungen This European Standard was approved by CEN on 2 July 2000 and includes Amendment 1 approved by CEN on 16 July 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 12041:2000+A1:2009: ESIST EN 12041:2001+A1:2009
EN 12041:2000+A1:2009 (E) 2 Contents Page Foreword .3Introduction .41Scope .42Normative references .43Description .53.1Type 1 moulder .63.2Type 2 moulder .73.3Type 3 moulder .84List of hazards .94.1Mechanical hazards .94.2Electrical hazards . 124.3Hazard generated by neglecting hygienic design principles . 124.4Hazards generated by neglecting ergonomic principles . 125Safety and hygiene requirements and/or measures . 135.1Mechanical hazards . 135.2Electrical hazards . 215.3Hygiene requirements . 225.4Hazards generated by neglecting ergonomic principles . 255.5Noise reduction . 256Verification of safety and hygiene requirements and/or measures . 267Information for use . 267.1Marking . 27Annex A (normative)
Principles of design to ensure the cleanability of moulders . 29A.1Definitions . 29A.2Materials of construction . 29A.3Design . 31Annex B (normative)
Noise test code - Grade 2 of accuracy. 50B.1Definitions . 50B.2Installation and mounting conditions . 50B.3Operating conditions . 50B.4Emission sound pressure level determination . 50B.5Measurement uncertainties . 51B.6Information to be recorded . 51B.7Information to be reported . 51B.8Declaration and verification of noise emission values . 51Annex ZA (informative)
!!!!Relationship between this European Standard and the
Essential Requirements of EU Directive 98/37CE"""" . 53Annex ZB (informative)
!!!!Relationship between this European Standard and the
Essential Requirements of EU Directive 2006/42/CE"""" . 54Bibliography . 55 SIST EN 12041:2001+A1:2009
EN 12041:2000+A1:2009 (E) 3 Foreword This document (EN 12041:2000+A1:2009) has been prepared by the 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 February 2010, and conflicting national standards shall be withdrawn at the latest by February 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 2009-07-16. This document supersedes EN 12041:2000. 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 Commission of the European Commission and the European Free Trade Association, and supports essential requirements of EU Directives(s). !For relationship with EU Directive(s), see informative Annexes ZA and ZB, which are integral parts of this document." 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 United Kingdom.
SIST EN 12041:2001+A1:2009
EN 12041:2000+A1:2009 (E) 4 Introduction The extent to which hazards are covered is indicated in the scope of this standard. In addition, machinery shall comply as appropriate with !EN ISO 12100" for hazards which are not covered by this standard. 1 Scope This standard applies to the design and manufacture of dough moulders of the types described in 3.1, 3.2 and 3.3 and illustrated in figures 3a, 3b and 3c. These moulders are used in the food industry and shops (bread making, pastry making, sweet industries, bakeries, confectioners, delicatessens, catering facilities, etc.) for flattening, rolling and elongating pieces of dough. Other designs of moulder and type 1 moulders designed for other than hand crafted products using soft dough, e. g. French baguettes, are not covered by this standard. The standard covers the technical safety and hygiene requirements for the design, manufacture, installation, adjustment, operation, cleaning and maintenance of these machines, as defined in !3.22 of EN ISO 12100-1:2003" and in the manufacturer's instruction handbook. The significant hazards covered by this standard are mechanical (drawing in, trapping, entanglement, crushing, loss of stability), electrical, ergonomic and also those resulting from inhalation of flour dust and lack of hygiene. Noise is not considered to be a significant hazard by moulders. This does not mean that the manufacturer of the machine is absolved from reducing noise and making a noise declaration. Therefore a noise test code is proposed in Annex B. The following machines are excluded: experimental and testing machines under development by the manufacturer; domestic appliances; bagel machines. This standard applies only to machines manufactured after the date of approval by CEN. 2 Normative references This European Standard incorporates by dated or 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 when 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 SIST EN 12041:2001+A1:2009
EN 12041:2000+A1:2009 (E) 5 EN 614-1:1995, Safety of machinery - Ergonomic design principles – Part 1: Terminology and general principles EN 954-1:1996, Safety of machinery - Safety related parts of control systems – Part 1: General principles for design EN 1050:1996, Safety of machinery - Principles for risk assessment EN 1088:1995, Safety of machinery - Interlocking devices associated with guards - Principles for design and selection EN 1672-2:1997, Food processing machinery - Common requirements – Part 2: Hygiene requirements EN 60204-1:1997, Safety of machinery - Electrical equipment of machines – Part 1: General requirements
EN 60529:1991, Degrees of protection provided by enclosures EN 60651:1994, Sound level meters EN 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 EN ISO 4871:1997, Acoustics - Declaration and verification of noise emission values of machinery and equipment EN ISO 11688-1:1997, Acoustics - Recommended practice for the design of low noise machinery and equipment – Part 1: Planning EN ISO 12001:1996, Acoustics - Noise emitted by machinery and equipment - Rules for the drafting and presentation of a noise test code !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)" ISO 468:1982, Surface roughness - Parameters values and general rules for specifying requirements 3 Description Machines may be manually or automatically fed (for example by discharge conveyor from the prover). Dough pieces are flattened between two cylinders, rolled between two surfaces (either two moving belts or one belt and a fixed plate), and elongated in the same way. Discharge may be manual or by conveyor.
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c Feeding d Flattening e Rolling
f Elongation g Discharge
Figure 1—General principle
3.1 Type 1 moulder On machines used to produce soft dough products e.g. French baguette, product quality depends on careful handling of the dough and in particular on manual introduction of the dough without any excessive drop. The maximum dropping distance without causing harm is 20 cm. In the case of manual feeding, the dough is elongated by hand and dropped into the rollers. With this type of moulder, the dough introduced into the hopper is flattened by the rollers and becomes a thin sheet at C (see figure 2a). For tough dough or pastry, additional rollers can be placed in front of the two first rollers.
This thin sheet is rolled between the fixed and the mechanically driven belt T1 and progressively squeezed at E. After that, it is elongated between T1 and T2.
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c Lump, manual feeding d Fixed cloth e Feeding by belts Figure 2a — Type 1 moulder
3.2 Type 2 moulder These machines are used mainly to produce small rolled bread with soft and hard dough. The piece of dough is placed on the conveyor belt, at different angles from the axes of cylinders in order to obtain several shapes of bread (banana, mantovane, barilini, bocconcini, etc.). This type of moulder (see figure 2b) consists of: a) a conveyor belt (T1) suitable to feed the piece of dough into the rollers (C); b) a train of rollers (C) of a variable number that flatten the piece of dough; c) two belts (T2 and T3) between which the piece of dough is moulded and/or elongated.
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Figure 2b — Type 2 moulder
3.3 Type 3 moulder These machines are mainly suitable for producing large rolled bread (long loaves) using soft dough. This type of moulder (see figure 2c) consists of: a) a conveyor belt (T1) suitable to feed the piece of dough into the rollers (C); b) a train of rollers (C) of a variable number (generally from 2 to 6) that flattens the piece of dough; c) a fixed cloth (T2) called "heavy" that starts the moulding of the piece of dough; d) a fixed plate (P) coupled to a movable belt (T3) between which the piece of dough is moulded and/or elongated completely.
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Figure 2c — Type 3 moulder
4 List of hazards This clause contains those hazards identified by risk assessment (see EN 1050) as specific and significant for moulders and which require action to reduce risks. Figures 3a (moulder type 1), 3b (moulder type 2) and 3c (moulder type 3) show the danger zones. 4.1 Mechanical hazards The significant mechanical hazards are: trapping hazard; crushing hazard; entanglement hazard; loss of stability. Zone 1:
gap between the rollers (hazards: fingers drawing-in and crushing); Zone 2:
drive mechanisms (hazards: trapping, shearing and entanglement); Zone 3: input and output devices (hazardous inrunning nips) (hazards: crushing and entanglement)
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Figure 3a: Danger zones of moulders - Type 1 moulder
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Figure 3b — Danger zones of moulders - Type 2 moulder
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Figure 3c — Danger zones of moulders - Type 3 moulder
4.2 Electrical hazards Hazard of electric shock from direct or indirect contact with live components. Hazards of external influences on electrical equipment (e.g. cleaning with water, dust). 4.3 Hazard generated by neglecting hygienic design principles The neglection of hygienic principles can create unacceptable modification of foodstuff and therefore a risk to human health, i.e. through physical, chemical or microbial pollution. 4.4 Hazards generated by neglecting ergonomic principles During operation, cleaning and maintenance, there may be a risk of injury or chronic damage to the body resulting from awkward body postures. Loading the machine with pieces of dough over prolonged periods using repetitive hand and arm movement may cause musculo-skeletal disorders. The zone 4: "control mechanism to adjust the gap between the rolls and/or the gap between the belts" may be an ergonomic hazard zone. SIST EN 12041:2001+A1:2009
EN 12041:2000+A1:2009 (E) 13 5 Safety and hygiene requirements and/or measures This clause states the requirements and/or measures to reduce the effect of the hazards detailed in clause 4. 5.1 Mechanical hazards Where reference is made to interlocking devices throughout clause 5, they shall comply with clause 4.2.1 and clauses 5 and 6 of EN 1088:1995. Where the interlocking mechanism has movable parts, e. g. position switches, these shall be protected from contamination with dough or dry ingredients, e. g. by mounting them within the machine body. Alternatively, magnetic switches may be used if total removal of any guard is required. Safety related control systems shall be to category 1 of EN 954-1:1996. !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." 5.1.1 Zone 1: gap between the two rollers Access to the hazard zone shall be prevented, e.g. by the machine housing. Requirements for use shall also be taken into account. To achieve this, moulders shall be equipped with an interlocking guard and/or a device preventing the introduction of the hand into the danger zone through the feeding devices. Different ways of restricting access to the hazard zone are given for moulders of types 1, 2 and 3. Because of the particular operational requirements of these types of moulder, total prevention of access is not always possible. Risk assessment and accident history show that these measures provide a satisfactory level of safety. The stopping time shall be less than or equal to 1 s from switch actuation. When automatically fed, access shall be prevented to the inrunning rollers. This may be achieved by the provision of: total enclosure; a feed tunnel and a conveyor, see table 4 of EN 294:1992; a chicane and conveyors as shown in figure 4d; 5.1.1.1 Type 1 moulder Restricting access to zone 1 may be achieved by means of one of the following devices: a mechanical device (see figure 4a); a hopper which acts as a stopping device (see figure 4b); a fixed hopper with a stopping device in the form of the bar (see figure 4c). In figures 4b and 4c the upper edge of the hopper or the bar shall be at a minimum distance of 150 mm of the hazard zone. The distance between the upper edge of the hopper and the stopping device shall be less than 20 mm. The width of the upper opening of the hopper shall be less than or equal to 160 mm.
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Figure 4a— Hopper with mechanical device
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Figure 4b — Hopper which acts itself as a stopping device Figure 4c — Fixed hopper with a stopping device in the form of a bar
5.1.1.2 Type 2 and type 3 moulders Access to the feed opening shall be prevented. This may be achieved by the provision of: a fixed or an interlocked feed hopper/chicane with the dimensions given in figure 4d; If the guard is to be removed for cleaning it shall be interlocked. SIST EN 12041:2001+A1:2009
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c belt
d piece of dough
e chicane
Figure 4d — Feed hopper
for type 2 moulders, a movable interlocking guard (see figure 4e). The guard shall have the dimensions given in table 1 and be free to move vertically or near vertically at the feed opening. Table 1 — Dimensions of the guard for type 2 moulders Dimensions in millimetres A max. 70 75 80 85 90 95 100 B min. 230 250 270 290 310 330 350 E See EN 294:1992 - Table 4 F See EN 294;1992 - Table 4 H 1) 40 ≤ H ≤ 60 1) H does not apply to machines fed automatically.
Where: SIST EN 12041:2001+A1:2009
EN 12041:2000+A1:2009 (E) 17 A: distance between the table and the guard until the position of the guard from which the interlocking device is actuated;
B: distance between the edge of the guard and the plane of the roller axis;
E: distance between the lower edge of the guard and the table or conveyor belt;
F: distance between the upper edge of the grid and the lateral guard;
H: distance between the trip device and the table or conveyor belt.
These distances are applicable to machines fed automatically. Machines fed manually shall be equipped in addition with a stopping device with lateral guards as shown in figure 4e. The stopping device shall stop a machine within a time less than or equal to 1 s when a 30 N force is applied to it.
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c movable interlocked guard
d lateral fixed guard
e trip device
f stopping device
Figure 4e—Type 2 moulders
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EN 12041:2000+A1:2009 (E) 19 for moulders of type 3, a movable interlocking guard (see figure 4f). The guard shall have the dimensions given in table 2. Table 2 — Dimensions of the guard for type 3 moulders Dimensions in millimetres A max. 40 45 50 55 60 65 70 105 140 B min. 230 250 300 350 400 450 500 550 600 E See EN 294:1992 - Table 4
Where:
A Distance between the table and the guard until the position of the guard from which the interlocking device is actuated;
B Distance between the edge of the guard and the plane of the roller axis;
E distance between the lower edge of the guard and the table or conveyor belt;
Lifting of the guard shall cause machine to stop within one second, in this case restarting shall only be possible by actuating the starting control.
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c movable interlocking guard Figure 4f — Type 3 moulders
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EN 12041:2000+A1:2009 (E) 21 5.1.2
Zone 2 - Drive mechanism The drive mechanism shall be located either within the machine frame, or protected by a fixed or interlocking guard.
5.1.3 Zone 3 - Input and output devices (hazardous inrunning nips) 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 2 in figure 5, shall be fitted to prevent access to the inrunning nip.
c Input or output conveyor d Inrunning nip guard e Roller Figure 5 — Inrunning nip guard
5.1.4 Loss of stability Machines shall be designed to be stable and shall comply with 5.1.4.1 to 5.1.4.2 as applicable. For machines designed to be fixed to the floor, the instruction handbook shall indicate the values of forces at the fixing points. 5.1.4.1 Free standing machines without castors shall be stable when tilted 10° from the horizontal plane in the most unfavourable direction 5.1.4.2 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 5.1.4.1. 5.2 Electrical hazards The electrical equipment shall comply with EN 60204-1:1997, with the following precisions. 5.2.1 Electromagnetic compatibility (see 4.4.2 of EN 60204-1:1997) Where electrical/electronic components are used, the manufacturer shall ensure that the equipment shall not generate electromagnetic disturbances above the levels that are appropriate for its intended place of use. In addition, the equipment shall have adequate level of immunity to electromagnetic disturbances so that it can correctly function in its intended place of use.
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EN 12041:2000+A1:2009 (E) 22 NOTE 1 The supplier of the electrical/electronic equipment should be able to detail its electromagnetic compatibility. NOTE 2 Where conditions of use, installation and maintenance are specified by the supplier in order to achieve electromagnetic compatibility, these should be complied with by the manufacturer. 5.2.2 Cleaning with water The machines covered by this standard are not intended to be cleaned with water. 5.2.3 Protection against electric shock (see clause 6 of EN 60204-1:1997) The electrical equipment shall comply with clause 6 of EN 60204-1:1997. 5.2.4 Power circuits (see 7.2.3 of EN 60204-1:1997) A device for detection and interruption of overcurrent in the phase conductor is sufficient for single phase machines. 5.2.5 Earth faults (see 9.4.3.1 of EN 60204-1:1997) For machinery supplied from a single phase conductor and an earthed neutral conductor, there is no requirement for double pole interruption. 5.2.6 Emergency stop (see 10.7 of EN 60204-1:1997) An emergency stop is not required. 5.2.7 Motor enclosures (see 15.2 of EN 60204-1:1997)
Where a motor has a degree of protection lower than IP23 it shall be mounted inside an enclosure that guarantees a minimum degree of protection of IP23. 5.3 Hygiene requirements Moulders shall be designed and manufactured in accordance with EN 1672-2:1997 and annex A. The 3 zones defined in EN 1672-2:1997 are shown in figure 6 and are in general at least as follows; the precise boundary between the areas depends on the detailed design of the machine. 5.3.1 Food area The food area is as follows: the surfaces of the rollers; the surfaces of the scraping devices; the surfaces of the input/output tables or conveyor belts; the guards, (the whole guard when made of bars, the inside face when the guard is solid). 5.3.2 Splash area The splash area includes the side and internal parts of the base, the outside of the solid guards. SIST EN 12041:2001+A1:2009
EN 12041:2000+A1:2009 (E) 23 5.3.3 Non food area The non food area included all areas which have not been mentioned in 5.3.1 and 5.3.2.
Food area
Splash area
Non food area Figure 6a — Type 1 moulder
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Food area
Splash area
Non food area Figure 6b — Type 2 moulder
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Food area
Splash area
Non food area Figure 6c — Type 3 moulder
5.4 Hazards generated by neglecting ergonomic principles Awkward body postures during maintenance and cleaning shall be avoided by the design of the machine. Repetitive work (see annex A of EN 614-1:1995) may be avoided by use of automatic loading devices. Control devices shall be placed within proper reach distance for the operator as stated in annex A of EN 614-1:1995. Adjusting and operating controls on the machine external surface to adjust the gap between the rolls and/or the gap between the belts shall be designed and located in compliance with ergonomic requirements as described in annex A of EN 614-1:1995. 5.5 Noise reduction Moulders shall be so designed and constructed that risks from airborne noise emission are reduced to the lowest level by particularly applying measures at source to control noise, see for example EN ISO 11688-1. SIST EN 12041:2001+A1:2009
EN 12041:2000+A1:2009 (E) 26 The success of the applied noise reduction measures is assessed on the basis of the actual noise emission values (see Annex B) in relation to other machines of the same family. 6 Verification of safety and hygiene requirements and/or measures Relevant clause Safety and hygiene requirements Method of verification 5.1.1 Interlocking guard By functional test
Safety distances By measurement
Trip device By functional test 5.1.2 Drive mechanism By inspection and functional test 5.1.3 Inrunning nip By inspection 5.1.4 Stability In accordance
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