SIST EN 1612-2:2000+A1:2008
(Main)Plastics and rubber machines - Reaction moulding machines - Part 2: Safety requirements for reaction moulding plant
Plastics and rubber machines - Reaction moulding machines - Part 2: Safety requirements for reaction moulding plant
This standard covers the essential health and safety requirements for the design of reaction moulding plant with the exception of metering and mixing units (for these see part 1).
The significant and specific hazards are listed in clause 4 and are dealt with in this standard.
This standard does not cover completely the hazards arising from the use of highly flammable additives, for example pentane used as a blowing agent (see 4.3), because these hazards depend to a large extent on the additives and process used.
This standard does not cover the hazards due to noise generated by the cutting unit, which is the only significant source of noise at such plant.
This standard does not cover the requirements for the design of exhaust systems.
This standard does not cover the hazards arising from the assembly of separate units not supplied at the same time by the same manufacturer.
This standard applies to reaction moulding plant manufactured after the date of publication of this standard.
NOTE Directive 94/9/EC concerning equipment and protective systems intended for use in potentially explosive atmospheres can be applicable to the type of machine or equipment covered by this European Standard. The present standard is not intended to provide means of complying with the essential health and safety requirements of Directive 94/9/EC.
Kunststoff- und Gummimaschinen - Reaktionsgießmaschinen - Teil 2: Sicherheitsanforderungen an Reaktionsgießanlagen
Machines pour les matières plastiques et le caoutchouc - Machines de moulage par réaction - Partie 2: Prescriptions de sécurité relatives aux installations de moulage par réaction
Cette norme spécifie les exigences essentielles d'hygiène et de sécurité relatives à la conception des installations
de moulage par réaction, à l'exception des unités de dosage et de mélange (pour ces dernières, voir la partie 1).
Les phénomènes dangereux significatifs et spécifiques sont énumérés à l'article 4 et sont traités dans cette norme.
Cette norme ne couvre pas complètement les phénomènes dangereux provenant de l'utilisation d'additifs
facilement inflammables, par exemple le pentane utilisé comme agent d'expansion (voir 4.3), car ces phénomènes
dépendent principalement des additifs et du procédé utilisés.
Cette norme ne couvre pas les phénomènes dangereux résultant du bruit émis par l'unité de coupe, qui est la seule
source de bruit significative sur ce type d'installation.
Cette norme n'énonce pas d'exigences relatives à la conception des systèmes d'aspiration.
Cette norme ne couvre pas les phénomènes dangereux résultant de l'assemblage de parties constitutives
distinctes n'ayant pas été livrées simultanément par le même fabricant.
Cette norme s'applique aux installations de moulage par réaction fabriquées après la date de publication de
cette norme.
NOTE La Directive 94/9/CE relative aux appareils et systèmes de protection destinés à être utilisés en atmosphères
explosibles peut être appliquée au type de machine ou équipement couvert par cette norme européenne. La présente norme
n'est pas destinée à fournir un moyen de satisfaire aux exigences essentielles de Santé et de Sécurité de la Directive
94/9/CE.
Stroji za predelavo gume in plastike - Stroji za tlačno litje - 2. del: Varnostne zahteve za postrojenje tlačnega litja
General Information
Relations
Standards Content (Sample)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Kunststoff- und Gummimaschinen - Reaktionsgießmaschinen - Teil 2: Sicherheitsanforderungen an ReaktionsgießanlagenMachines pour les matières plastiques et le caoutchouc - Machines de moulage par réaction - Partie 2: Prescriptions de sécurité relatives aux installations de moulage par réactionPlastics and rubber machines - Reaction moulding machines - Part 2: Safety requirements for reaction moulding plant83.200Oprema za gumarsko industrijo in industrijo polimernih materialovEquipment for the rubber and plastics industriesICS:Ta slovenski standard je istoveten z:EN 1612-2:2000+A1:2008SIST EN 1612-2:2000+A1:2008en01-november-2008SIST EN 1612-2:2000+A1:2008SLOVENSKI
STANDARD
SIST EN 1612-2:2000+A1:2008
EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 1612-2:2000+A1
August 2008 ICS 83.200 Supersedes EN 1612-2:2000English Version
Plastics and rubber machines - Reaction moulding machines - Part 2: Safety requirements for reaction moulding plant
Machines pour les matières plastiques et le caoutchouc - Machines de moulage par réaction - Partie 2: Prescriptions de sécurité relatives aux installations de moulage par réaction
Kunststoff- und Gummimaschinen - Reaktionsgießmaschinen - Teil 2: Sicherheitsanforderungen an Reaktionsgießanlagen This European Standard was approved by CEN on 23 April 1999 and includes Amendment 1 approved by CEN on 15 June 2008.
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: rue de Stassart, 36
B-1050 Brussels © 2008 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 1612-2:2000+A1:2008: ESIST EN 1612-2:2000+A1:2008
EN 1612-2:2000+A1:2008 (E) 2 Contents Page Foreword.3 Introduction.4 1 Scope.4 2 Normative references.4 3 Terms and definitions.5 4 List of hazards.6 5 Safety requirements and/or measures.11 6 Verification of the safety requirements and/or measures.18 7 Information for use.19 Annex ZA (informative)
!Relationship between this European Standard and the Essential Requirements of EU Directive 98/37/EC".21 Annex ZB (informative)
!Relationship between this European Standard and the Essential Requirements of EU Directive 2006/42/EC".22
SIST EN 1612-2:2000+A1:2008
EN 1612-2:2000+A1:2008 (E) 3 Foreword This document (EN 1612-2:2000+A1:2008) has been prepared by Technical Committee CEN/TC 145 "Plastics and rubber machines", the secretariat of which is held by UNI. 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 2009, and conflicting national standards shall be withdrawn at the latest by December 2009. This document includes Amendment 1, approved by CEN on 2008-06-15. !The main changes compared to the previous version are: modification of the main element of the title; editorial modification of Annex ZA; addition of Annex ZB; editorial changes of EN 292-1:1991 to EN ISO 12100-1:2003 and of EN 292-2:1991 to
EN ISO 12100-2:2003 in the following clauses: Introduction, 2, 5.1.1; updating of prEN 999 to EN 999; minor changes in the Foreword, new 7th paragraph." This document supersedes EN 1612-2:2000. 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 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 standard deals with metering and mixing units. 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 1612-2:2000+A1:2008
EN 1612-2:2000+A1:2008 (E) 4 Introduction This European Standard is a type C standard as defined in !EN ISO 12100". 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 covers the essential health and safety requirements for the design of reaction moulding plant with the exception of metering and mixing units (for these see part 1). The significant and specific hazards are listed in clause 4 and are dealt with in this standard. This standard does not cover completely the hazards arising from the use of highly flammable additives, for example pentane used as a blowing agent (see 4.3), because these hazards depend to a large extent on the additives and process used. This standard does not cover the hazards due to noise generated by the cutting unit, which is the only significant source of noise at such plant. This standard does not cover the requirements for the design of exhaust systems. This standard does not cover the hazards arising from the assembly of separate units not supplied at the same time by the same manufacturer. This standard applies to reaction moulding plant manufactured after the date of publication of this standard. NOTE Directive 94/9/EC concerning equipment and protective systems intended for use in potentially explosive atmospheres can be applicable to the type of machine or equipment covered by this European Standard. The present standard is not intended to provide means of complying with the essential health and safety requirements of Directive 94/9/EC. 2 Normative references This European Standard incorporates provisions from other publications by dated or undated references. These normative references are cited at the appropriate places in the text and the publications are listed below. For dated references, subsequent amendments or revisions 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 EN 349:1993, Safety of Machinery - Minimum gaps to avoid crushing of parts of the human body
EN 418:1992, Safety of Machinery - Emergency stop equipment, functional aspects – Principles for design EN 574:1996, Safety of Machinery - Two-hand control devices - Functional aspects – Principles for design SIST EN 1612-2:2000+A1:2008
EN 1612-2:2000+A1:2008 (E) 5 EN 953:1997, Safety of Machinery - Guards - General requirements for the design and construction of fixed and movable guards EN 954-1:1996, Safety of Machinery - Safety related parts of control systems - Part 1: General principles for design !EN 999", Safety of Machinery - The positioning of protective equipment in respect of approach speeds of parts of the human body EN 1037:1995, Safety of Machinery - Prevention of unexpected start-up EN 1088:1995, Safety of Machinery - Interlocking devices associated with guards - Principles for design and selection EN 1127-1:1997, Explosive atmospheres – Explosion prevention and protection – Part 1: Basic concepts and methodology EN 1612-1:1997, Rubber and plastics machines - Reaction moulding machines - Part 1: Safety requirements for metering and mixing units EN 1760, Safety of machinery - Pressure sensitive protective devices EN 60079-10:1996, Electrical apparatus for explosive gas atmospheres - Classification of hazardous areas EN 60079-14:1997, Electrical apparatus for explosive gas atmospheres – Electrical installations in hazardous areas (other than mines) EN 60204-1:1997, Safety of Machinery - Electrical equipment of machines - Part 1: General requirements EN 60529:1991, Degrees of protection provided by enclosures (IP code) EN 61496-1:1997, Safety of Machinery – Electro-sensitive protective equipment - Part 1: General requirements and tests !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)" 3 Terms and definitions For the purposes of this standard, the following definitions apply: 3.1 reaction moulding plant a complex installation for reaction moulding which consists of one or more metering and mixing units (see part 1), moulding equipment and ancillary equipment. 3.1.1 continuous moulding equipment equipment for continuous moulding of semi-finished products which may be for example slabs, blocks or continuous sandwich composites (see figures 1 and 2) 3.1.2 moulding equipment for individual components Equipment for production of individual components. This may be: SIST EN 1612-2:2000+A1:2008
EN 1612-2:2000+A1:2008 (E) 6 fixed moulding equipment with a fixed mixing head (see figure 3); fixed moulding equipment with a mobile mixing head (see figure 4); mobile moulding equipment with a fixed mixing head (see figure 5); mobile moulding equipment with a mobile mixing head (see figure 6). 3.2 ancillary equipment Additional equipment necessary for operation of the reaction moulding plant. In the case of continuous moulding equipment, ancillary equipment may be: equipment for feeding cover sheets; equipment for manipulating the mixing head; a cutting unit. In the case of moulding equipment for individual components, ancillary equipment may be: equipment for manipulating the mixing head; mould transport equipment; a pick-and-place device for handling inserts and/or moulded components; equipment for the application of release agents; cell-crushing equipment. 3.3 highly flammable additive while there is no European directive or standard in existence, an additive with a flash point ≤ 21°C. 4 List of hazards 4.1 Reaction moulding plant using continuous moulding equipment 4.1.1 Hazards due to cutting and/or crushing when feeding the front edge of cover sheets into moulding equipment during start-up 4.1.2 Hazards due to impact with the mixing head when it returns to the rest position 4.1.3 Hazards due to ejection of materials at the mixing head which may result in impact, burns and/or contact with materials hazardous to health 4.1.4 Hazards due to inhalation of gases hazardous to health given off by reaction components, additives or a mixture thereof 4.1.5 Hazards due to shearing, crushing and/or drawing-in due to moving parts of moulding equipment side walls at its entry and exit openings (see figure 2) SIST EN 1612-2:2000+A1:2008
EN 1612-2:2000+A1:2008 (E) 7 4.1.6 Hazards due to the cutting process 4.1.6.1 Cutting by the cutting device 4.1.6.2 Shearing and/or crushing due to movement of the cutting unit 4.1.6.3 Ejection of metal swarf 4.1.6.4 Inhalation of dust hazardous to health
1
Product 2
Side wall of moulding equipment 3
Equipment for feeding side cover sheet 4
Moulding equipment lower cover sheet 5
Equipment for feeding lower cover sheet 6
Mixing head 7
Equipment for manipulating mixing head 8
Cutting unit 9
Equipment for delivery of cut product Figure 1 — Continuous moulding equipment SIST EN 1612-2:2000+A1:2008
EN 1612-2:2000+A1:2008 (E) 8
1
Product 2
Moving parts of moulding equipment side walls 3
Cover sheet 4
Side wall enclosure Figure 2 — Moulding equipment entry and exit openings 4.2 Reaction moulding plant using moulding equipment for individual components 4.2.1 Hazards due to splashing of moulding material during mould filling which may result in impact, burns and/or contact with materials hazardous to health 4.2.2 Hazards due to crushing and/or impact at equipment for manipulating the mixing head 4.2.3 Hazards due to crushing, shearing and/or impact during closing, opening, turning or tilting of the mould at a stationary mould carrier or, in all other cases, during closing and opening of the mould 4.2.4 Hazards due to crushing, shearing, impact and/or drawing-in at mould transport equipment 4.2.5 Hazards due to crushing, shearing and/or drawing-in at cell-crushing equipment (see figure 7) 4.2.6 Hazards due to inhalation of gases hazardous to health given off by reaction components, additives or a mixture thereof 4.2.7 Hazards due to crushing, shearing and/or impact at pick-and-place devices for handling inserts and/or moulded components 4.2.8 Hazards due to equipment for application of the release agent 4.2.8.1 Crushing and/or impact 4.2.8.2 Inhalation of gases hazardous to health given off by the release agent
SIST EN 1612-2:2000+A1:2008
EN 1612-2:2000+A1:2008 (E) 9
1
Mould carrier frame 2
Lower mould 3
Upper mould 4
Mixing head Figure 3 — Fixed moulding equipment with fixed mixing head
1
Mould carrier frame 2
Fixed mould 3
Mobile mould 4
Mobile mixing head Figure 4 — Fixed moulding equipment with mobile mixing head SIST EN 1612-2:2000+A1:2008
EN 1612-2:2000+A1:2008 (E) 10
1
Mould transport equipment 2
Open mould 3
Closed mould 4
Mixing head Figure 5 — Mobile moulding equipment with fixed mixing head
1
Mould transport equipment 2
Open mould 3
Closed mould 4
Equipment for manipulating mixing head 5
Equipment for application of release agents 6
Device for placing inserts 7
Device for removal of moulded components 8
Transport conveyor Figure 6 — Mobile moulding equipment with mobile mixing head SIST EN 1612-2:2000+A1:2008
EN 1612-2:2000+A1:2008 (E) 11
1
Feed conveyor 2
Delivery conveyor 3
Lower platen 4
Upper platen Figure 7 — Cell-crushing equipment
4.3 Hazards due to explosion where highly flammable additives are used 4.4 Electrical hazards Electrical shock caused by direct or indirect contact with live parts. Burns due to sparking, arcing or excessive heating of electrical parts. 5 Safety requirements and/or measures The guards specified in 5.1 and 5.2 shall be designed according to EN 953. The safety distances given in tables 2 and 5 of EN 294:1992, shall be used for positioning the guards in all cases where access to the area of the closing mould is to be prevented. In all other cases, tables 1 and 4 of EN 294:1992 may be applied. In addition, the interlocking guards shall be positioned so that the stopping time (see 3.8 of EN 1088) is smaller than the access time (see 3.9 of EN 1088). Safety related parts of relevant control systems shall conform to the category of EN 954-1 indicated in brackets below. However, a higher category may be used. 5.1 Reaction moulding plant using continuous moulding equipment 5.1.1 Hazards due to cutting and/or crushing when feeding the front edge of cover sheets into moulding equipment during start-up. SIST EN 1612-2:2000+A1:2008
EN 1612-2:2000+A1:2008 (E) 12 At start-up, it shall only be possible to feed the front edge of cover sheets into moulding equipment using a hold-to-run control device as defined in !3.26.3 of EN ISO 12100-1:2003" (EN 954-1 category 1) and the speed of the cover sheet in these circumstances shall not exceed 0.033 m/s. A lockable mode selector switch shall be provided and the start-up procedure shall be described in the information for use (see 7.1.1). Only when the start-up position on the mode selector switch is selected shall the hold-to-run control be available for use. 5.1.2 Hazards due to impact with the mixing head when it returns to the rest position It shall not be possible to initiate movement of the mixing head other than by means of a control device positioned at least 2m from the rest position of the mixing head. In addition, the operator shall have a clear view of the danger area. 5.1.3 Hazards due to ejection of materials at the mixing head See 7.1.1, 7.2.1 and EN 1612-1. 5.1.4 Hazards due to inhalation of gases hazardous to health given off by reaction components, additives or a mixture thereof
Reaction moulding plant shall be provided with an exhaust system in accordance with the user's specification; see also 7.1.1. It shall not be possible to operate the reaction moulding plant unless the exhaust system is in operation (EN 954-1 category 1). The exhaust system shall continue to operate after normal stops or emergency stops. See also 7.1.3. 5.1.5 Hazards due to shearing, crushing and/or drawing-in due to moving parts of moulding equipment side walls at its entry and exit openings Moving parts of the moulding equipment side walls shall be pr
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