SIST EN 12882:2008
(Main)Conveyor belts for general purpose use - Electrical and flammability safety requirements
Conveyor belts for general purpose use - Electrical and flammability safety requirements
Will specify electrical and flammability safety requirements for general purpose conveyor belts not intended for use in underground installations and a means of categorizing conveyor belts in terms of the level of safety sought in their end use application. This European Standard does not provide electrical safety requirements for volume resistance which may be measured by the methods in EN ISO 21178 and which is relevant to some types of light conveyor belts.
Fördergurte für allgemeine Anwendung - Elektrische und brandtechnische Sicherheitsanforderungen
Diese Europäische Norm legt elektrische und brandtechnische Anforderungen an Fördergurte für allgemeine Anwendung fest, die nicht für den Einsatz unter Tage vorgesehen sind, sowie die Klassifizierung von Fördergurten hinsichtlich des für den Verwendungszweck angestrebten Sicherheitsgrads. In dieser Europä-ischen Norm sind keine Sicherheitsanforderungen an den elektrischen Durchgangswiderstand festgelegt, der mit den in EN ISO 21178 genannten Verfahren gemessen werden kann und der für einige Typen leichter Fördergurte von Bedeutung ist.
Diese Europäische Norm gilt nicht für Fördergurte, die vor dem Datum der Veröffentlichung dieses Dokuments durch CEN hergestellt wurden.
ANMERKUNG 1 Richtlinie 94/9/EG, die Einrichtungen und Schutzsysteme für den Einsatz in potentiell explosiven Atmosphären betrifft, kann für den Maschinentyp oder Einrichtungen zutreffen, die durch diese Europäische Norm abge¬deckt sind. Die vorliegende Norm soll nicht zur Erfüllung der wesentlichen Gesundheits- und Sicherheits-anforderungen der Richtlinie 94/9/EG dienen, die durch EN 14973 abgedeckt ist.
ANMERKUNG 2 EN 12882 ist keine Produktnorm, sondern dazu gedacht, den Anwendern von Fördergurten bei der Auswahl der erforderlichen elektrischen und brandtechnischen sicherheitsrelevanten Eigenschaften zu helfen, die auf-grund einer angemessenen Risikobeurteilung notwendig sind. Deshalb sind keine Anforderungen an Kennzeichnung, bereitzustellende Angaben usw. enthalten, da diese Themen durch die entsprechenden Produktnormen wie beispiels-weise EN ISO 14890 und EN ISO 15236 1 abgedeckt sind.
Courroies transporteuses a usage général - Prescriptions de sécurité électrique et protection contre l'inflammabilité
La présente Norme européenne spécifie les exigences de sécurité électrique et les exigences en matière de
protection contre l’inflammabilité relatives aux courroies transporteuses à usage général qui ne sont pas
destinées à être utilisées dans des installations souterraines, ainsi qu’une méthode de classement des
courroies transporteuses en termes de niveau de sécurité recherché lors de l’application finale. La présente
Norme européenne ne fournit pas d’exigences de sécurité électrique pour la résistance transversale qui peut
être mesurée selon les méthodes de l’EN ISO 21178 et qui concerne certains types de courroies
transporteuses légères.
La présente Norme européenne ne s’applique pas aux courroies transporteuses fabriquées avant la date de
publication du présent document par le CEN.
NOTE 1 La Directive 94/9/CE concernant les appareils et les systèmes de protection destinés à être utilisés en
atmosphères potentiellement explosibles peut être applicable au type de machine ou d’appareil couvert par la présente
Norme européenne. La présente norme n’est pas destinée à fournir un moyen de se conformer aux exigences
essentielles en matière de santé et de sécurité de la Directive 94/9/CE, cet aspect étant traité dans l’EN 14973.
NOTE 2 L’EN 12882 n'est pas une norme de produit mais est prévue pour aider les utilisateurs de courroies
transporteuses à choisir les propriétés de sécurité électrique et d'inflammabilité requises après une évaluation appropriée
des risques. Aucune exigence n'est donc incluse pour le marquage, l'information à fournir, etc., ces sujets étant couverts
par les normes de produit pertinentes telles que l’EN ISO 14890 et l’EN ISO 15236-1.
Naprave za kontinuirni transport - Trakovi tračnih transporterjev za splošne namene - Električne in požarnovarnostne zahteve
General Information
Relations
Standards Content (Sample)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Fördergurte für allgemeine Anwendung - Elektrische und brandtechnische SicherheitsanforderungenCourroies transporteuses a usage général - Prescriptions de sécurité électrique et protection contre l'inflammabilitéConveyor belts for general purpose use - Electrical and flammability safety requirements53.040.20Deli za transporterjeComponents for conveyors13.220.40Sposobnost vžiga in obnašanje materialov in proizvodov pri gorenjuIgnitability and burning behaviour of materials and productsICS:Ta slovenski standard je istoveten z:EN 12882:2008SIST EN 12882:2008en,fr01-december-2008SIST EN 12882:2008SLOVENSKI
STANDARDSIST EN 12882:20021DGRPHãþD
SIST EN 12882:2008
EUROPEAN STANDARDNORME EUROPÉENNEEUROPÄISCHE NORMEN 12882October 2008ICS 53.040.20Supersedes EN 12882:2001
English VersionConveyor belts for general purpose use - Electrical andflammability safety requirementsCourroies transporteuses à usage général - Prescriptionsde sécurité électrique et protection contre l'inflammabilitéFördergurte für allgemeine Anwendung - Elektrische undbrandtechnische SicherheitsanforderungenThis European Standard was approved by CEN on 24 August 2008.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this EuropeanStandard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such nationalstandards 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 translationunder the responsibility of a CEN member into its own language and notified to the CEN Management Centre has the same status as theofficial 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 STANDARDIZATIONCOMITÉ EUROPÉEN DE NORMALISATIONEUROPÄISCHES KOMITEE FÜR NORMUNGManagement Centre: rue de Stassart, 36
B-1050 Brussels© 2008 CENAll rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 12882:2008: ESIST EN 12882:2008
EN 12882:2008 (E) 2 Contents Page Foreword.3 Introduction.4 1 Scope.5 2 Normative references.5 3 Terms and definitions.5 4 Safety requirements.6 5 Safety categories.7 Annex ZA (informative)
Relationship between this European Standard and the Essential Requirements of EU Directive 98/37/EC.13 Annex ZB (informative)
Relationship between this European Standard and the Essential Requirements of EU Directive 2006/42/EC.14 Bibliography.15
SIST EN 12882:2008
EN 12882:2008 (E) 3 Foreword This document (EN 12882:2008) has been prepared by Technical Committee CEN/TC 188 “Conveyor belts”, the secretariat of which is held by BSI. 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 April 2009, and conflicting national standards shall be withdrawn at the latest by April 2009. 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 supersedes EN 12882:2001. 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 EC Directive(s). For relationship with EC Directive(s), see informative Annex ZA and B, which is an integral part 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 the United Kingdom. SIST EN 12882:2008
EN 12882:2008 (E) 4 Introduction This document is a type C standard as stated in EN ISO 12100-1. The machinery concerned and the extent to which hazards, hazardous situations and events are covered are indicated in the scope of this document. When provisions of this type C standard are different from those which are stated in type A or B standards, the provisions of this type C standard take precedence over the provisions of the other standards, for machines that have been designed and built according to the provisions of this type C standard. During the preparation of this European Standard, the hazards which have been identified as being directly related to the use of conveyor belts are: a) hazards associated with the discharge of static electrical energy; b) hazards associated with the impingement of small naked flames on the cover and/or carcass of a conveyor belt at rest; c) hazards caused by the stalling of a conveyor belt and the continued operation of the driving mechanism causing localized heating of the conveyor belt through contact with the driving drum or cylinder or some other source of frictional heat; d) hazards caused by the propagation of a flame along a belt which has been exposed to a relatively high energy source such as a fire. The risk, or probable rate of occurrence of these hazards and the degree of harm they can cause will vary depending upon the particular circumstances of the application or site of application, which are many and varied. Consequently the level of safety required will vary from one application to another, depending upon the risks judged to be pertinent. The hazards listed above should not be taken as the only properties affecting safety in operation. Other aspects such as health or environmental requirements should be considered.
Depending on the individual end use requirement, these other factors can affect the category of belt selected and additional safety precautions may need to be employed. This European Standard is therefore designed to enable the user to select the category of conveyor belt most suited to the particular circumstances of the application. The principal changes from the first edition of EN 12882 are as follows: e) the surface potential, when measured in accordance with EN ISO 21179, has been increased from 500 V to 1 000 V, in the light of further experience since EN 12882:2001 was published; f) Annex A, which was an Extract from CENELEC Report CLC/R 044-001 “Safety of machinery – Guidance and recommendations for the avoidance of hazards due to static electricity”, has been deleted as its inclusion has caused confusion between users and manufacturers of belts. SIST EN 12882:2008
EN 12882:2008 (E) 5 1 Scope This European Standard specifies electrical and flammability safety requirements for general purpose conveyor belts not intended for use in underground installations and a means of categorizing conveyor belts in terms of the level of safety sought in their end use application. This European Standard does not provide electrical safety requirements for volume resistance which may be measured by the methods in
EN ISO 21178 and which is relevant to some types of light conveyor belts.
This European Standard is not applicable to conveyor belts which are manufactured before the date of publication of this document by CEN.
NOTE 1 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, this being covered in EN 14973. NOTE 2 EN 12882 is not a product standard but is intended to help users of conveyor belts to select the required electrical and flammability safety properties needed following a suitable risk assessment. No requirements are, therefore, included for marking, information to be supplied, etc., these matters being covered in relevant product standards such as EN ISO 14890 and EN ISO 15236-1. 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 619, Continuous handling equipment and systems – Safety and EMC requirements for equipment for mechanical handling of unit loads EN 620, Continuous handling equipment and systems – Safety and EMC requirements for fixed belt conveyors for bulk materials EN 1554:1998, Conveyor belts – Drum friction testing EN 12881-1:2005, Conveyor belts – Fire simulation flammability testing – Part 1: Propane burner tests EN ISO 284, Conveyor belts – Electrical conductivity – Specification and test method (ISO 284:2003) EN ISO 340, Conveyor belts – Laboratory scale flammability characteristics – Requirements and test method (ISO 340:2004) EN ISO 12100-2, Safety of machinery – Basic concepts, general principles for design – Part 2: Technical principles (ISO 12100-2:2003) EN ISO 21178, Light conveyor belts – Determination of electrical resistances (ISO 21178:2005) EN ISO 21179, Light conveyor belts – Determination of the electrostatic field generated by a running light conveyor belt (ISO 21179:2005) EN ISO 21183-1, Light conveyor belts – Part 1: Principal characteristics and applications (ISO 21183-1:2005) 3 Terms and definitions For the purposes of this document, the following terms and definitions apply. SIST EN 12882:2008
EN 12882:2008 (E) 6 3.1 afterflame flame which persists after the ignition source has been removed 3.2 afterglow persistence of glowing, after cessation of flaming or, if no flaming occurs, after the ignition source has been removed 3.3 flame, noun zone of combustion in the gaseous phase usually with emission of light 3.4 flame, verb to undergo combustion in the gaseous phase with emission of light 3.5 glowing made luminous by heat, (without flame) 3.6 undamaged part remaining of a conveyor belt after the termination of the propane gallery fire test described in accordance with EN 12881-1 and which shows no evidence of embrittlement, cracking, blistering or other blemishes not originally present 4 Safety requirements 4.1 Electrical conductivity 4.1.1 When tested in accordance with EN ISO 284, all general purpose conveyor belts shall have an electrical surface resistance not greater than 300 M. 4.1.2 Light conveyor belts as described in EN ISO 21183-1 shall have an electrical surface resistance not greater than 300 M when tested in accordance with EN ISO 21178 unless one of the conditions described in 4.1.2.1 to 4.1.2.3 applies.
4.1.2.1 Light conveyor belts with an internal conductive layer shall not generate an electrostatic charge resulting in a surface
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