{"id":11926,"date":"2020-06-22T20:56:34","date_gmt":"2020-06-22T20:56:34","guid":{"rendered":"http:\/\/elexpert.ma\/beta\/?page_id=11843"},"modified":"2021-09-14T21:12:38","modified_gmt":"2021-09-14T21:12:38","slug":"protection-exterieure-contre-la-foudre-selon-la-norme-nm-iec-62305-3","status":"publish","type":"elexpert_solution","link":"https:\/\/elexpert.ma\/index.php\/solutions\/qualite-denergie\/protection-contre-la-foudre-2\/protection-exterieure-contre-la-foudre-selon-la-norme-nm-iec-62305-3\/","title":{"rendered":"Protection ext\u00e9rieure contre la foudre selon la norme NM IEC 62305-3"},"content":{"rendered":"

[vc_row cspt-text-color=”white” full_width=”stretch_row” css=”.vc_custom_1631448703791{background-image: url(https:\/\/elexpert.ma\/wp-content\/uploads\/2020\/06\/foudre.jpg?id=12748) !important;background-position: center !important;background-repeat: no-repeat !important;background-size: cover !important;}”][vc_column width=”1\/2″ css=”.vc_custom_1631448684436{padding-top: 20px !important;background-color: #ff9314 !important;}”][vc_raw_html]JTVCZWxleHBlcnRfYnJlYWRjcnVtcCU1RA==[\/vc_raw_html][vc_row_inner][vc_column_inner width=”1\/2″][vc_custom_heading text=”La Garantie
\nQualifoudre” font_container=”tag:h2|font_size:28|text_align:center|color:%23000000″ google_fonts=”font_family:Ledger%3Aregular|font_style:400%20regular%3A400%3Anormal” css=”.vc_custom_1630252366812{border-top-width: 2px !important;border-right-width: 2px !important;border-bottom-width: 2px !important;border-left-width: 2px !important;padding-top: 20px !important;padding-right: 20px !important;padding-bottom: 20px !important;padding-left: 20px !important;background-color: #ffffff !important;border-left-color: #ffffff !important;border-left-style: dashed !important;border-right-color: #ffffff !important;border-right-style: dashed !important;border-top-color: #ffffff !important;border-top-style: dashed !important;border-bottom-color: #ffffff !important;border-bottom-style: dashed !important;border-radius: 35px !important;}”][\/vc_column_inner][\/vc_row_inner][\/vc_column][vc_column width=”1\/2″][\/vc_column][\/vc_row][vc_row content_placement=”middle” css=”.vc_custom_1631449000763{padding-top: 50px !important;padding-bottom: 50px !important;}”][vc_column width=”1\/2″][vc_column_text]<\/p>\n

Pour concevoir et r\u00e9aliser ses installations de protection contre la foudre, Elexpert se base sur les derni\u00e8res normes internationales et marocaines en la mati\u00e8re, notamment la s\u00e9rie de normes NM IEC 62305-1\u00a0:2020, NM IEC 62305-2\u00a0:2020, NM IEC 62305-3\u00a0:2020 (issues des normes IEC 62305-x\u00a0:2012)<\/span><\/p>\n

[\/vc_column_text][\/vc_column][vc_column width=”1\/2″][vc_single_image image=”12753″ img_size=”large” alignment=”center” onclick=”link_image”][\/vc_column][\/vc_row][vc_row css=”.vc_custom_1591394160539{padding-top: 50px !important;padding-bottom: 50px !important;}”][vc_column][vc_column_text]<\/p>\n

Ce type d\u2019installation consiste en la mise en place d\u2019un ou plusieurs paratonnerres \u00e0 tiges, \u00e9rig\u00e9s en partie haute des structures \u00e0 prot\u00e9ger. <\/span><\/p>\n

L\u2019angle de protection concernant la zone prot\u00e9g\u00e9e par ces tiges d\u00e9pend du niveau de protection requis sur le b\u00e2timent concern\u00e9 et de la hauteur du dispositif de capture au-dessus du volume \u00e0 prot\u00e9ger.<\/span><\/p>\n

[\/vc_column_text][vc_single_image image=”12664″ img_size=”full” alignment=”center” onclick=”link_image”][\/vc_column][\/vc_row][vc_row full_width=”stretch_row” css=”.vc_custom_1630252594194{padding-top: 50px !important;padding-bottom: 50px !important;}”][vc_column][vc_column_text]<\/p>\n

La protection par cage maill\u00e9e consiste en la r\u00e9alisation sur le b\u00e2timent d\u2019une cage \u00e0 mailles reli\u00e9es \u00e0 des prises de terre. <\/span><\/p>\n

Le syst\u00e8me \u00e0 cage maill\u00e9e r\u00e9partit l\u2019\u00e9coulement des courants de foudre entre les diverses descentes, et ceci d\u2019autant mieux que les mailles sont plus serr\u00e9es. <\/span><\/p>\n

La largeur des mailles en toiture et la distance moyenne entre deux descentes d\u00e9pendent du niveau de protection requis sur le b\u00e2timent. <\/span><\/p>\n

[\/vc_column_text][vc_single_image image=”12663″ img_size=”full” alignment=”center” onclick=”link_image”][\/vc_column][\/vc_row][vc_row css=”.vc_custom_1591394160539{padding-top: 50px !important;padding-bottom: 50px !important;}”][vc_column][vc_column_text]<\/p>\n

Ce syst\u00e8me est compos\u00e9 d\u2019un ou plusieurs fils conducteurs tendus au-dessus des installations \u00e0 prot\u00e9ger. <\/span><\/p>\n

La zone de protection se d\u00e9termine par application du mod\u00e8le \u00e9lectro g\u00e9om\u00e9trique. <\/span><\/p>\n

Les conducteurs doivent \u00eatre reli\u00e9s \u00e0 la terre \u00e0 chacune de leur extr\u00e9mit\u00e9. <\/span><\/p>\n

Ce type de solution est r\u00e9serv\u00e9 \u00e0 des cas particuliers, pour la protection de zones ATEX \u00e0 risque \u00e9lev\u00e9 (d\u00e9p\u00f4ts de munitions, hangars de stockage de mati\u00e8res explosives, etc.)<\/span><\/p>\n

[\/vc_column_text][vc_single_image image=”11845″ img_size=”full” alignment=”center” onclick=”link_image”][\/vc_column][\/vc_row]<\/p>\n<\/div>","protected":false},"parent":11928,"menu_order":0,"template":"","class_list":["post-11926","elexpert_solution","type-elexpert_solution","status-publish","hentry"],"acf":[],"yoast_head":"\nProtection ext\u00e9rieure contre la foudre selon la norme NM IEC 62305-3 - Elexpert<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/elexpert.ma\/index.php\/solutions\/qualite-denergie\/protection-contre-la-foudre-2\/protection-exterieure-contre-la-foudre-selon-la-norme-nm-iec-62305-3\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Protection ext\u00e9rieure contre la foudre selon la norme NM IEC 62305-3 - Elexpert\" \/>\n<meta property=\"og:description\" content=\"[vc_row cspt-text-color=”white” full_width=”stretch_row” css=”.vc_custom_1631448703791{background-image: url(https:\/\/elexpert.ma\/wp-content\/uploads\/2020\/06\/foudre.jpg?id=12748) !important;background-position: center !important;background-repeat: no-repeat !important;background-size: cover !important;}”][vc_column width=”1\/2″ css=”.vc_custom_1631448684436{padding-top: 20px !important;background-color: #ff9314 !important;}”][vc_raw_html]JTVCZWxleHBlcnRfYnJlYWRjcnVtcCU1RA==[\/vc_raw_html][vc_row_inner][vc_column_inner width=”1\/2″][vc_custom_heading text=”La Garantie Qualifoudre” font_container=”tag:h2|font_size:28|text_align:center|color:%23000000″ google_fonts=”font_family:Ledger%3Aregular|font_style:400%20regular%3A400%3Anormal” css=”.vc_custom_1630252366812{border-top-width: 2px !important;border-right-width: 2px !important;border-bottom-width: 2px !important;border-left-width: 2px !important;padding-top: 20px !important;padding-right: 20px !important;padding-bottom: 20px !important;padding-left: 20px !important;background-color: #ffffff !important;border-left-color: #ffffff !important;border-left-style: dashed !important;border-right-color: #ffffff !important;border-right-style: dashed !important;border-top-color: #ffffff !important;border-top-style: dashed !important;border-bottom-color: #ffffff !important;border-bottom-style: dashed !important;border-radius: 35px !important;}”][\/vc_column_inner][\/vc_row_inner][\/vc_column][vc_column width=”1\/2″][\/vc_column][\/vc_row][vc_row content_placement=”middle” css=”.vc_custom_1631449000763{padding-top: 50px !important;padding-bottom: 50px !important;}”][vc_column width=”1\/2″][vc_column_text] Pour[…]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/elexpert.ma\/index.php\/solutions\/qualite-denergie\/protection-contre-la-foudre-2\/protection-exterieure-contre-la-foudre-selon-la-norme-nm-iec-62305-3\/\" \/>\n<meta property=\"og:site_name\" content=\"Elexpert\" \/>\n<meta property=\"article:modified_time\" content=\"2021-09-14T21:12:38+00:00\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Dur\u00e9e de lecture estim\u00e9e\" \/>\n\t<meta name=\"twitter:data1\" content=\"3 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/elexpert.ma\/index.php\/solutions\/qualite-denergie\/protection-contre-la-foudre-2\/protection-exterieure-contre-la-foudre-selon-la-norme-nm-iec-62305-3\/\",\"url\":\"https:\/\/elexpert.ma\/index.php\/solutions\/qualite-denergie\/protection-contre-la-foudre-2\/protection-exterieure-contre-la-foudre-selon-la-norme-nm-iec-62305-3\/\",\"name\":\"Protection ext\u00e9rieure contre la foudre selon la norme NM IEC 62305-3 - 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