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IEC 60684-3-247-ed.2.0
Flexible insulating sleeving - Part 3: Specifications for individual types of sleeving - Sheet 247: Heat-shrinkable, polyolefin sleeving, dual wall, not flame retarded, thick and medium wall
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STANDARD published on 8.8.2019
The information about the standard:
Designation standards: IEC 60684-3-247-ed.2.0
Publication date standards: 8.8.2019
SKU: NS-967995
The number of pages: 28
Approximate weight : 84 g (0.19 lbs)
Country: International technical standard
Category: Technical standards IEC
The category - similar standards:
Annotation of standard text IEC 60684-3-247-ed.2.0 :
IEC 60684-3-247:2019 is available as IEC 60684-3-247:2019 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition. IEC 60684-3-247:2019 gives the requirements for two types of heat-shrinkable, polyolefin sleeving, dual wall, not flame retarded with a nominal shrink ratio of 3:1. This sleeving has been found suitable for use at temperatures of up to 100 °C. - Type A: Medium wall, internal diameter up to 200,0 mm typically. - Type B: Thick wall, internal diameter up to 200,0 mm typically. These sleevings are normally supplied in colour black. Since these types of sleving cover a significantly large range of sizes and wall thicknesses, Annex A (Tables A.1 and A.2) provides a guide to the range of sizes available. The actual size will be agreed between the user and supplier. Materials which conform to this specification meet established levels of performance. However, the selection of a material by a user for a specific application will be based on the actual requirements necessary for adequate performance in that application and not based on this specification alone. This second edition cancels and replaces the first edition published in 2011 and Amendment 1:2016. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous editions: - removal of the colour fastness to light test, as this is covered by the test for carbon black content; - change of low temperature flexibility test to -20 °C to align with sheet 214; - change of final conditioning temperature of peel strength samples to 200 oC to align with the temperature in Clause 5; - removal of the fungus resistance test as there is no evidence that fungus growth is an issue either by testing or in use. Keywords: Heat-shrinkable, polyolefin sleeving, dual wall, not flame retarded, thick and medium wall IEC 60684-3-247:2019 est disponible sous forme de IEC 60684-3-247:2019 RLV qui contient la Norme internationale et sa version Redline, illustrant les modifications du contenu technique depuis ledition precedente. LIEC 60684-3-247:2019 donne les exigences relatives a deux types de gaines thermoretractables en polyolefine, a double paroi, non ignifugees, dont le rapport de retreint nominal est 3:1. Ces gaines se sont averees appropriees pour une utilisation a des temperatures allant jusqu’a 100 °C. - Type A: Paroi moyenne, diametre interieur generalement jusqu’a 200 mm - Type B: Paroi epaisse, diametre interieur generalement jusqu’a 200 mm La couleur de ces gaines est normalement le noir. Comme ces types de gaines couvrent une plage tres etendue de tailles et d’epaisseurs de paroi, lAnnexe A (Tableaux A.1 et A.2) fournit un guide des tailles disponibles dans cette plage. La taille reelle fait l’objet d’un accord entre l’utilisateur et le fournisseur.Anchor Les materiaux conformes a la presente specification satisfont a des niveaux de performances etablis. Cependant, le choix d’un materiau par un utilisateur, pour une application specifique, est fonde sur les exigences reelles necessaires pour obtenir des performances adequates pour lapplication concernee, et nest pas fonde sur cette seule specification. Cette deuxieme edition annule et remplace la premiere edition parue en 2011 et lAmendement 1:2016. Cette edition constitue une revision technique. Cette edition inclut les modifications techniques majeures suivantes par rapport a ledition precedente: - suppression de lessai de solidite de la couleur a la lumiere, cet essai etant couvert par lessai de determination de la teneur en noir de carbone; - modification de la temperature de lessai de flexion a basse temperature qui devient -20 °C pour aligner la valeur avec celle donnee dans la feuille 214; - modification de la temperature de conditionnement finale des echantillons pour la resistance a larrachement qui devient 200 oC pour aligner la valeur avec celle donnee a lArticle 5; - suppression de lessai de resistance aux moisissures etant donne quil na pas ete demontre, ni par des essais, ni en fonctionnement, que le developpement de moisissures constituait un probleme. Mots-cles: Gaines thermoretractables en polyolefine, a double paroi, non ignifugees, a paroi epaisse et moyenne
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