{"id":2040,"date":"2026-09-01T06:01:43","date_gmt":"2026-09-01T06:01:43","guid":{"rendered":"https:\/\/sh-jycable.com\/?p=2040"},"modified":"2026-09-01T06:01:43","modified_gmt":"2026-09-01T06:01:43","slug":"vertical-combustion-and-ft1-test","status":"publish","type":"post","link":"https:\/\/sh-jycable.com\/fr\/vertical-combustion-and-ft1-test\/","title":{"rendered":"Essai de combustion verticale et essai FT1"},"content":{"rendered":"<h2>Combustion verticale et essai FT1 :<\/h2>\n<p>1060.1 Pour les \u00e9chantillons destin\u00e9s aux essais verticaux de fils et c\u00e2bles finis ou de cordons souples, lors de l'application de flammes d'essai normalis\u00e9es \u00e0 cinq reprises, chacune durant 15 secondes, ainsi que pendant ou apr\u00e8s les intervalles entre ces applications, a) la flamme ne doit pas se propager sur toute la longueur de l'\u00e9chantillon ; b) la flamme ne doit pas se propager aux mat\u00e9riaux combustibles situ\u00e9s \u00e0 proximit\u00e9.<\/p>\n<p>La flamme d'essai normalis\u00e9e a une hauteur nominale de 125 mm et d\u00e9gage une chaleur \u00e0 un d\u00e9bit nominal de 500 W (1 700 Btu\/h). L'intervalle entre deux applications de la flamme doit \u00eatre de 15 secondes, que la flamme de l'\u00e9chantillon d'essai s'\u00e9teigne automatiquement ou non dans les 15 secondes suivant la derni\u00e8re application de la flamme. \u00c0 moins que des couches de coton ne soient pas utilis\u00e9es, comme dans l\u2019essai FT1, l\u2019essai doit \u00eatre r\u00e9alis\u00e9 conform\u00e9ment aux sections 1080.2 \u00e0 1080.11 et 1060.2, en utilisant l\u2019un des combustibles d\u00e9crits \u00e0 la section 1080.3, un br\u00fbleur de salle d\u2019essai normalis\u00e9 et un \u00e9talonnage tel que d\u00e9crit \u00e0 la section 1080.1. Les r\u00e9sultats de l\u2019essai sont \u00e9valu\u00e9s comme indiqu\u00e9 \u00e0 la section 1060.3.<\/p>\n<p>1060.2 Incliner le br\u00fbleur vers l'avant pour l'amener en position d'application d'une flamme de gaz sur l'\u00e9chantillon d'essai. Maintenir le br\u00fbleur en place pendant 15 secondes, puis l'incliner rapidement vers l'arri\u00e8re jusqu'\u00e0 la but\u00e9e afin d'\u00e9loigner la flamme de l'\u00e9chantillon d'essai pendant 15 secondes. Appliquer la flamme \u00e0 cinq reprises au total, chaque fois pendant 15 secondes, en respectant un intervalle de 15 secondes entre chaque application. Appliquer \u00e0 nouveau la flamme sur l'\u00e9chantillon d'essai 15 secondes apr\u00e8s la derni\u00e8re application, que la combustion de l'\u00e9chantillon d'essai s'\u00e9teigne automatiquement ou non dans les 15 secondes suivant la derni\u00e8re application.<\/p>\n<p>1060.3 Si le drapeau indicateur d\u2019un \u00e9chantillon pr\u00e9sente une br\u00fblure ou une carbonisation de 25% ou plus (en ne tenant pas compte de la suie ou des parties brunies carbonis\u00e9es pouvant \u00eatre essuy\u00e9es avec un chiffon ou un doigt) apr\u00e8s chacune des 5 expositions au feu, le fil, le c\u00e2ble ou le cordon doit \u00eatre class\u00e9 comme propageant la flamme sur toute sa longueur. Si un \u00e9chantillon \u00e9met \u00e0 un moment quelconque des particules incandescentes ou lumineuses ou des gouttelettes incandescentes qui enflamment les couches de coton (non applicable \u00e0 l\u2019essai FT1) (en ne tenant pas compte de la carbonisation des couches de coton non enflamm\u00e9es), le fil, le c\u00e2ble ou le cordon doit \u00eatre class\u00e9 comme capable de propager la flamme aux mat\u00e9riaux combustibles voisins. Si un \u00e9chantillon continue de br\u00fbler pendant plus de 60 secondes apr\u00e8s cinq expositions au feu, le fil, le c\u00e2ble ou le cordon doit \u00eatre class\u00e9 comme capable de propager la flamme aux mat\u00e9riaux combustibles situ\u00e9s \u00e0 proximit\u00e9.<\/p>","protected":false},"excerpt":{"rendered":"<p>Vertical combustion and FT1 test: 1060.1 For vertical test samples of finished wire and cable or flexible cords, during the application of standard test flames for 5 times, each lasting for 15 seconds, and during or after the flame application intervals, a) the flame must not propagate along its length; b) the flame must not [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":2041,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-2040","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-uncategorized"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.1 - 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