{"id":4541,"date":"2021-07-13T19:08:05","date_gmt":"2021-07-13T19:08:05","guid":{"rendered":"https:\/\/knowhowprod.wpengine.com\/?p=4541"},"modified":"2021-09-13T11:15:20","modified_gmt":"2021-09-13T11:15:20","slug":"protection-antibruit","status":"publish","type":"post","link":"https:\/\/knowhow.distrelec.com\/fr\/maintenance-reparation-et-exploitation\/protection-antibruit\/","title":{"rendered":"Protection antibruit"},"content":{"rendered":"\n<p>L&rsquo;oreille est un organe sensible, elle peut \u00eatre endommag\u00e9e si elle est expos\u00e9e \u00e0 des niveaux de bruit excessifs. La mesure du bruit est appel\u00e9e niveau de pression acoustique (SPL) et est exprim\u00e9e en d\u00e9cibels (dB).<\/p>\n\n\n\n<p>Tous les bruits ne sont pas identiques et il est important de tenir compte du type de bruit auquel un employ\u00e9 est expos\u00e9 avant de choisir l&rsquo;EPI le mieux adapt\u00e9.<\/p>\n\n\n\n<p>Il existe deux propri\u00e9t\u00e9s importantes li\u00e9es au bruit \u00e0 prendre en compte avant de choisir un EPI:<\/p>\n\n\n\n<ol class=\"wp-block-list\"><li>La fr\u00e9quence du bruit<\/li><li>L&rsquo;intensit\u00e9 du bruit \u00e0 cette fr\u00e9quence (ou \u00e0 ces fr\u00e9quences)<\/li><\/ol>\n\n\n\n<p>La fr\u00e9quence est l&rsquo;attribut du bruit qui d\u00e9termine sa tonalit\u00e9. Un bruit aigu, tel que celui d&rsquo;un roulement qui grince, contient une \u00e9nergie sonore \u00e0 haute fr\u00e9quence. Un bruit grave, tel que le bourdonnement d&rsquo;un g\u00e9n\u00e9rateur \u00e9lectrique, contient une \u00e9nergie sonore \u00e0 basse fr\u00e9quence. La fr\u00e9quence est un facteur important, car l&rsquo;oreille a une sensibilit\u00e9 diff\u00e9rente selon les fr\u00e9quences.<\/p>\n\n\n\n<p>L&rsquo;oreille est la plus sensible \u00e0 des fr\u00e9quences d&rsquo;environ 400-6 000 Hz. Ces fr\u00e9quences sont importantes pour l&rsquo;intelligibilit\u00e9 de la parole, et les dommages \u00e0 l&rsquo;oreille sur cette plage peuvent avoir un impact significatif sur les individus affect\u00e9s. La sensibilit\u00e9 accrue de l&rsquo;oreille \u00e0 ces fr\u00e9quences est mod\u00e9lis\u00e9e math\u00e9matiquement par une courbe de fr\u00e9quence appel\u00e9e courbe de pond\u00e9ration A.<\/p>\n\n\n\n<p>Lorsqu&rsquo;un niveau de pression acoustique est indiqu\u00e9, il peut \u00eatre exprim\u00e9 \u00e0 l&rsquo;aide de la valeur pond\u00e9r\u00e9e A (dBA). Cela indique que la valeur a \u00e9t\u00e9 ajust\u00e9e pour repr\u00e9senter sa pertinence par rapport \u00e0 la sensibilit\u00e9 de l&rsquo;oreille.<\/p>\n\n\n\n<p>En r\u00e9sum\u00e9, l&rsquo;oreille est moins sensible aux fr\u00e9quences tr\u00e8s basses et tr\u00e8s \u00e9lev\u00e9es, tandis qu&rsquo;elle est beaucoup plus sensible aux fr\u00e9quences situ\u00e9es au milieu de la plage audible. Par cons\u00e9quent, la protection auditive doit \u00eatre con\u00e7ue et choisie pour garantir la bonne prise en compte de ce facteur.<\/p>\n\n\n\n<p>Le choix d&rsquo;une protection antibruit conforme \u00e0 la norme EN 352 garantit la protection de l&rsquo;oreille. L&rsquo;objectif de tout produit de protection est de r\u00e9duire la pression acoustique \u00e0 l&rsquo;oreille \u00e0 un niveau qui ne risque pas de l&rsquo;endommager. Le niveau de r\u00e9duction sp\u00e9cifique requis varie selon les r\u00e9gions, mais g\u00e9n\u00e9ralement, sauf sur une tr\u00e8s courte p\u00e9riode, un niveau de pression acoustique sup\u00e9rieur \u00e0 80 (dBA) entra\u00eenera des dommages \u00e0 l&rsquo;oreille.<\/p>\n\n\n\n<p>Lors de la s\u00e9lection d&rsquo;une protection auditive, il existe plusieurs crit\u00e8res que le fabricant du produit doit indiquer dans les instructions \u00e0 l&rsquo;attention de l&rsquo;utilisateur. Ces crit\u00e8res permettent de s\u00e9lectionner la protection auditive:<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>Le niveau de protection suppos\u00e9 (APL) donne la valeur de protection \u00e0 une fr\u00e9quence sp\u00e9cifique. Les fr\u00e9quences indiqu\u00e9es pour l&rsquo;APL commencent le plus souvent \u00e0 des fr\u00e9quences basses. La fr\u00e9quence est ensuite doubl\u00e9e pour la valeur APL suivante. On parle alors d&rsquo;augmentation par bande d&rsquo;octave.<\/li><li>L&rsquo;indice SNR (Single Number Rating) repr\u00e9sente les performances globales du produit et est bas\u00e9 sur les performances pond\u00e9r\u00e9es A du produit. Il fournit des informations moins d\u00e9taill\u00e9es que les valeurs APL, mais il est utile pour affiner la recherche de protection auditive.<\/li><li>Les valeurs HML (Haute, Moyenne, Faible) indiquent les performances de la protection auditive. Les valeurs H, M et L constituent un interm\u00e9diaire entre les valeurs SNR et APL, offrant une description relativement d\u00e9taill\u00e9e des performances du produit.<\/li><\/ul>\n\n\n\n<p>Il existe diff\u00e9rents types de protections antibruit. La plupart d&rsquo;entre elles sont des casques ou des oreillettes. Les casques s&rsquo;installent sur l&rsquo;oreille et reposent sur un joint entre le c\u00f4t\u00e9 de la t\u00eate et l&rsquo;amorti du casque pour assurer la protection. Les embouts ou oreillettes doivent \u00eatre ins\u00e9r\u00e9s dans l&rsquo;ouverture de l&rsquo;oreille externe et se fixent contre la peau de l&rsquo;oreille.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img  loading=\"lazy\"  decoding=\"async\"  height=\"576\"  width=\"1024\"  src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAABAAAAAJAAQMAAAApW4aWAAAAA1BMVEUAAP+KeNJXAAAAAXRSTlMAQObYZgAAAAlwSFlzAAAOxAAADsQBlSsOGwAAAF5JREFUeNrtwQEBAAAAgiD\/r25IQAEAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAO8GIk8AAbOpTZoAAAAASUVORK5CYII=\"  alt=\"\"  class=\"wp-image-2922 pk-lazyload\"  data-pk-sizes=\"auto\"  data-pk-src=\"https:\/\/knowhowprod.wpengine.com\/wp-content\/uploads\/2021\/06\/ppe-img-2-1024x576.jpg\" ><\/figure>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-9d6595d7 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<div class=\"wp-block-buttons is-content-justification-center is-layout-flex wp-block-buttons-is-layout-flex\">\n<div class=\"wp-block-button\"><a class=\"wp-block-button__link has-red-background-color has-background\" href=\"https:\/\/www.distrelec.ch\/fr\/c\/cat-DNAV_PL_180605\" style=\"border-radius:2px\" target=\"_blank\" rel=\"noreferrer noopener\">Parcourir la cat\u00e9gorie protections autitives<\/a><\/div>\n<\/div>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<div class=\"wp-block-buttons is-content-justification-center is-layout-flex wp-block-buttons-is-layout-flex\">\n<div class=\"wp-block-button\"><a class=\"wp-block-button__link has-red-background-color has-background\" href=\"https:\/\/www.distrelec.ch\/fr\/c\/cat-L3D_525453\" style=\"border-radius:2px\" target=\"_blank\" rel=\"noreferrer noopener\">D\u00e9couvrir plus d&rsquo;epi<\/a><\/div>\n<\/div>\n<\/div>\n<\/div>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-large\"><a href=\"https:\/\/www.distrelec.ch\/manufacturer\/3m\/man_mmm?queryFromSuggest=true\"><img  loading=\"lazy\"  decoding=\"async\"  width=\"300\"  height=\"60\"  src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABAQMAAAAl21bKAAAAA1BMVEUAAP+KeNJXAAAAAXRSTlMAQObYZgAAAAlwSFlzAAAOxAAADsQBlSsOGwAAAApJREFUCNdjYAAAAAIAAeIhvDMAAAAASUVORK5CYII=\"  alt=\"\"  class=\"wp-image-2923 pk-lazyload\"  data-pk-sizes=\"auto\"  data-pk-src=\"https:\/\/knowhowprod.wpengine.com\/wp-content\/uploads\/2021\/06\/peltor-logo-ppe.jpg\" ><\/a><\/figure><\/div>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-9d6595d7 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<p><strong>Avit<\/strong><\/p>\n\n\n\n<p>Bouchons d&rsquo;oreilles, paquet conique de 10 pi\u00e8ces<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img  loading=\"lazy\"  decoding=\"async\"  width=\"600\"  height=\"336\"  src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAlgAAAFQAQMAAABZE5JvAAAAA1BMVEUAAP+KeNJXAAAAAXRSTlMAQObYZgAAAAlwSFlzAAAOxAAADsQBlSsOGwAAAC9JREFUeNrtwQEBAAAAgiD\/r25IQAEAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAMCvAWPAAAF0SWEMAAAAAElFTkSuQmCC\"  alt=\"\"  class=\"wp-image-2924 pk-lazyload\"  data-pk-sizes=\"auto\"  data-ls-sizes=\"auto, (max-width: 600px) 100vw, 600px\"  data-pk-src=\"https:\/\/knowhowprod.wpengine.com\/wp-content\/uploads\/2021\/06\/avit-av13011.jpg\"  data-pk-srcset=\"https:\/\/knowhow.distrelec.com\/wp-content\/uploads\/2021\/06\/avit-av13011.jpg 600w, https:\/\/knowhow.distrelec.com\/wp-content\/uploads\/2021\/06\/avit-av13011.jpg?resize=300,168 300w, https:\/\/knowhow.distrelec.com\/wp-content\/uploads\/2021\/06\/avit-av13011.jpg?resize=380,213 380w, https:\/\/knowhow.distrelec.com\/wp-content\/uploads\/2021\/06\/avit-av13011.jpg?resize=550,308 550w\" ><\/figure>\n\n\n\n<div class=\"wp-block-buttons is-content-justification-center is-layout-flex wp-block-buttons-is-layout-flex\">\n<div class=\"wp-block-button\"><a class=\"wp-block-button__link has-red-background-color has-background\" href=\"https:\/\/www.distrelec.ch\/fr\/p\/18079822?track=true&amp;no-cache=true\" style=\"border-radius:2px\" target=\"_blank\" rel=\"noreferrer noopener\">Commander d\u00e9s maintenant<\/a><\/div>\n<\/div>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<p><strong>Peltor<\/strong><\/p>\n\n\n\n<p>Protection auditive mont\u00e9e sur casque<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img  loading=\"lazy\"  decoding=\"async\"  width=\"600\"  height=\"336\"  src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAlgAAAFQAQMAAABZE5JvAAAAA1BMVEUAAP+KeNJXAAAAAXRSTlMAQObYZgAAAAlwSFlzAAAOxAAADsQBlSsOGwAAAC9JREFUeNrtwQEBAAAAgiD\/r25IQAEAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAMCvAWPAAAF0SWEMAAAAAElFTkSuQmCC\"  alt=\"\"  class=\"wp-image-2925 pk-lazyload\"  data-pk-sizes=\"auto\"  data-ls-sizes=\"auto, (max-width: 600px) 100vw, 600px\"  data-pk-src=\"https:\/\/knowhowprod.wpengine.com\/wp-content\/uploads\/2021\/06\/peltor-H510P3E-405-GU.jpg\"  data-pk-srcset=\"https:\/\/knowhow.distrelec.com\/wp-content\/uploads\/2021\/06\/peltor-H510P3E-405-GU.jpg 600w, https:\/\/knowhow.distrelec.com\/wp-content\/uploads\/2021\/06\/peltor-H510P3E-405-GU.jpg?resize=300,168 300w, https:\/\/knowhow.distrelec.com\/wp-content\/uploads\/2021\/06\/peltor-H510P3E-405-GU.jpg?resize=380,213 380w, https:\/\/knowhow.distrelec.com\/wp-content\/uploads\/2021\/06\/peltor-H510P3E-405-GU.jpg?resize=550,308 550w\" ><\/figure>\n\n\n\n<div class=\"wp-block-buttons is-content-justification-center is-layout-flex wp-block-buttons-is-layout-flex\">\n<div class=\"wp-block-button\"><a class=\"wp-block-button__link has-red-background-color has-background\" href=\"https:\/\/www.distrelec.ch\/fr\/p\/11064827?track=true&amp;no-cache=true\" style=\"border-radius:2px\" target=\"_blank\" rel=\"noreferrer noopener\">Commander d\u00e9s maintenant<\/a><\/div>\n<\/div>\n<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"L&rsquo;oreille est un organe sensible, elle peut \u00eatre endommag\u00e9e si elle est expos\u00e9e \u00e0 des niveaux de bruit&hellip;\n","protected":false},"author":12,"featured_media":4524,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"csco_singular_sidebar":"","csco_page_header_type":"","csco_appearance_grid":"","csco_page_load_nextpost":"","csco_post_video_location":[],"csco_post_video_location_hash":"","csco_post_video_url":"","csco_post_video_bg_start_time":0,"csco_post_video_bg_end_time":0,"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[184],"tags":[],"coauthors":[],"class_list":{"0":"post-4541","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-maintenance-reparation-et-exploitation","8":"cs-entry","9":"cs-video-wrap"},"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v24.4 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Protection antibruit - KnowHow<\/title>\n<meta name=\"robots\" content=\"index, follow, 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