NF EN ISO 20238
Conveyor belts - Drum friction testing
ISO 20238:2018 specifies a method of testing to determine the propensity of a conveyor belt to generate heat flame or glow when held stationary, under a given tension, in surface contact around a rotating driven steel drum.ISO 20238:2018 describes means of varying the conveyor belt tension.NOTE For conveyor belts containing steel reinforcement, it may not be possible to conduct this test in full due to the inability of the conveyor belt to comply with the requirements of 7.2. In this case, premature termination according to 7.3 can be necessary.
ISO 20238:2018 specifies a method of testing to determine the propensity of a conveyor belt to generate heat flame or glow when held stationary, under a given tension, in surface contact around a rotating driven steel drum.
ISO 20238:2018 describes means of varying the conveyor belt tension.
NOTE For conveyor belts containing steel reinforcement, it may not be possible to conduct this test in full due to the inability of the conveyor belt to comply with the requirements of 7.2. In this case, premature termination according to 7.3 can be necessary.
Le présent document spécifie deux méthodes d'essai pour déterminer dans quelles conditions une courroie transporteuse est susceptible de s'échauffer et de s'enflammer lorsqu'elle frotte sous tension sur la surface d'un tambour en rotation. Il est destiné à venir en appui aux exigences de la Directive " Machines " 2006/42/CE.
- Avant-propos
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1 Domaine d'application
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2 Références normatives
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3 Termes et définitions
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4 Principe
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5 Appareillage
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6 Éprouvette
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7 Mode opératoire
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8 Rapport d'essai
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