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
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.
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 à 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
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
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
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 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
4.1.2.1 Light conveyor belts with an internal conductive layer shall not generate an electrostatic charge resulting in a surface potential of more than 1 000 V when tested in accordance with EN ISO 21179. 4.1.2.2 Under special service conditions, whereby higher electrostatic charges resulting in surface potentials of more than 1 000 V can be generated due to friction between a light conveyor belt and conveyed goods, or due to friction within the conveyed goods or due to the run of the light conveyor belt over a reverse roller, safety requirements shall be agreed between the purchaser/user and the manufacturer based on the actual circumstances of use. NOTE
Critical goods in this respect are mostly bulk goods such as sugar, flour or plastic granules. The requirements for safety in this standard do not consider such critical service conditions, but only the run of the empty light conveyor belt and the electrostatic charges generated thereby. 4.1.2.3 In certain circumstances (e.g. in the transportation of electronic components), the electrical safety requirement can be specified in terms of volume resistance as measured by the method described in
EN ISO 21178, and values shall be agreed between the purchaser/user and the manufacturer based on the actual circumstances of use. SIST EN 12882:2008
EN ISO 340 with covers intact, shall have an aggregate of the times for duration of flame for all six tests of less than 45 s and no individual result shall be greater than 15 s. 4.2.2 Conveyor belts in category 2B and 3B (see Clause 5 and Table 1), when tested in accordance with EN ISO 340 with covers intact and also with covers removed, shall have an aggregate of the times for duration of flame for each group of six tests, (i.e. six tests with covers intact and six tests with covers removed) of less than 45 s and no individual result shall be greater than 15 s. 4.3 Fire simulation Conveyor belts in categories 4A and 4B, 5A, 5B and 5C (see Clause 5 and Table 1), when tested in accordance with Method A of EN 12881-1:2005, shall retain a length of undamaged conveyor belt of not less than 100 mm across the whole width of the conveyor belt after the end of the test. 4.4 Drum friction 4.4.1 Conveyor belts in categories 3A, 3B and 4B (see Clause 5 and Table 1), when tested in accordance with Method A1 of EN 1554:1998
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