{"id":12022,"date":"2020-07-07T23:03:40","date_gmt":"2020-07-07T23:03:40","guid":{"rendered":"http:\/\/elexpert.ma\/beta\/?page_id=12022"},"modified":"2021-09-16T13:17:55","modified_gmt":"2021-09-16T13:17:55","slug":"protection-des-installations-contre-les-surtensions","status":"publish","type":"elexpert_solution","link":"https:\/\/elexpert.ma\/index.php\/solutions\/qualite-denergie\/protection-des-installations-contre-les-surtensions\/","title":{"rendered":"Protection des installations contre les surtensions"},"content":{"rendered":"<div class=\"wpb-content-wrapper\"><p>[vc_row cspt-text-color=&#8221;white&#8221; cspt-bg-image-position=&#8221;right-bottom&#8221; full_width=&#8221;stretch_row&#8221; css=&#8221;.vc_custom_1631310546842{padding-top: 0px !important;padding-bottom: 0px !important;background-image: url(https:\/\/elexpert.ma\/wp-content\/uploads\/2020\/07\/protection-contre-les-surtensions-2.jpg?id=12743) !important;background-position: center !important;background-repeat: no-repeat !important;background-size: contain !important;}&#8221;][vc_column width=&#8221;1\/2&#8243; css=&#8221;.vc_custom_1630251359886{padding-top: 20px !important;background-color: #ff9314 !important;}&#8221;][vc_raw_html]JTVCZWxleHBlcnRfYnJlYWRjcnVtcCU1RA==[\/vc_raw_html][\/vc_column][vc_column width=&#8221;1\/2&#8243;][\/vc_column][\/vc_row][vc_row css=&#8221;.vc_custom_1591394160539{padding-top: 50px !important;padding-bottom: 50px !important;}&#8221;][vc_column width=&#8221;3\/4&#8243;][vc_column_text]<\/p>\n<p class=\"Normal tm5\" style=\"text-align: justify;\"><em><span class=\"tm6\">Les surtensions constituent la principale cause de d\u00e9faillance des appareils \u00e9lectroniques: Variateurs de vitesse, onduleurs, alimentations stabilis\u00e9es, automates programmables, \u00e9crans de supervision et interfaces Homme-Machine, etc.. <\/span><\/em><\/p>\n<p class=\"Normal tm5\" style=\"text-align: justify;\"><em><span class=\"tm6\">Bien que moins fr\u00e9quents que les creux de tension et les interruptions, leurs effets sont beaucoup plus dommageables et destructeurs.<\/span><\/em><\/p>\n<p>Malheureusement, la plupart des exploitants de b\u00e2timents et des gestionnaires de maintenance dans l&#8217;industrie adoptent une approche fataliste devant ces ph\u00e9nom\u00e8nes, et imputent souvent la cause des d\u00e9faillances \u00e0 la fiabilit\u00e9 des \u00e9quipements \u00e9lectroniques.<\/p>\n<p>Ils ne se doutent pas qu&#8217;il est souvent facile de <strong>pr\u00e9venir<\/strong> ces probl\u00e8mes ou de les <strong>r\u00e9soudre<\/strong> <strong>d\u00e9finitivement<\/strong>, en installant des solutions adapt\u00e9es de protection contre les surtensions.<\/p>\n<p>&nbsp;[\/vc_column_text][vc_column_text]<em><span class=\"tm6\">Contrairement \u00e0 ce que l\u2019on croit, 80% des surtensions transitoires naissent \u00e0 l\u2019int\u00e9rieur de nos installations, et ne proviennent pas toujours du r\u00e9seau ext\u00e9rieur.<\/span><\/em><\/p>\n<p class=\"Normal tm5\" style=\"text-align: justify;\"><span class=\"tm6\">Les surtensions peuvent \u00eatre class\u00e9es en trois cat\u00e9gories : les surtensions transitoires qui durent en g\u00e9n\u00e9ral moins de 1 milliseconde (quelques centaines de micro-secondes), les surtensions temporaires qui durent entre 10 millisecondes et plusieurs secondes, et les surtensions permanentes qui peuvent durer de plusieurs minutes \u00e0 plusieurs heures si elles ne sont pas d\u00e9tect\u00e9es et corrig\u00e9es rapidement.<\/span><\/p>\n<p class=\"Normal tm5\" style=\"text-align: justify;\"><em><span class=\"tm7\">Principales causes des surtensions\u00a0:<\/span><\/em><\/p>\n<p>[\/vc_column_text][vc_row_inner][vc_column_inner width=&#8221;1\/3&#8243;][vc_column_text]<\/p>\n<p class=\"Normal tm6\" style=\"text-align: center;\"><strong><span class=\"tm7\">Les surtensions transitoires<\/span><\/strong><\/p>\n<ul>\n<li class=\"ListParagraph tm8\"><span class=\"tm11\">Les coups de foudre qui s\u2019abattent sur la structure ou \u00e0 proximit\u00e9<\/span><\/li>\n<li class=\"ListParagraph tm8\"><span class=\"tm11\">La commutation des interrupteurs et contacteurs<\/span><\/li>\n<li class=\"ListParagraph tm8\"><span class=\"tm11\">La commutation de condensateurs, <\/span><\/li>\n<li class=\"ListParagraph tm8\"><span class=\"tm11\">Les interruptions de courant (current chopping par exemple), <\/span><\/li>\n<li class=\"ListParagraph tm8\"><span class=\"tm11\">Le r\u00e9tablissement de courant dans une ligne (effet ferranti),<\/span><\/li>\n<li class=\"ListParagraph tm8\"><span class=\"tm11\">La commutation des composants d\u2019\u00e9lectronique de puissance<\/span><\/li>\n<li class=\"ListParagraph tm8\"><span class=\"tm11\">Les d\u00e9charges \u00e9lectrostatiques<\/span><\/li>\n<li class=\"ListParagraph tm8\"><span class=\"tm11\">\u2026..<\/span><\/li>\n<\/ul>\n<p>[\/vc_column_text][\/vc_column_inner][vc_column_inner width=&#8221;1\/3&#8243;][vc_column_text]<\/p>\n<p class=\"Normal tm6\" style=\"text-align: center;\"><strong><span class=\"tm7\">Les surtensions temporaires<\/span><\/strong><\/p>\n<ul>\n<li class=\"ListParagraph tm8\"><span class=\"tm11\">d\u00e9faut simple entre une phase et la terre, <\/span><\/li>\n<li class=\"ListParagraph tm8\"><span class=\"tm11\">baisses soudaines de charge (v = L di \/ dt) <\/span><\/li>\n<li class=\"ListParagraph tm8\"><span class=\"tm11\">interruption brusque du courant <\/span><\/li>\n<li class=\"ListParagraph tm8\"><span class=\"tm11\">mise sous tension d&#8217;une grande batterie de condensateurs <\/span><span class=\"tm11\">\u2026.<\/span><\/li>\n<\/ul>\n<p class=\"ListParagraph\"><span class=\"tm9\">\u00a0<\/span><\/p>\n<p>[\/vc_column_text][\/vc_column_inner][vc_column_inner width=&#8221;1\/3&#8243;][vc_column_text]<\/p>\n<p class=\"Normal tm6\" style=\"text-align: center;\"><strong><span class=\"tm7\">Les surtensions de longue dur\u00e9e<\/span><\/strong><\/p>\n<ul>\n<li class=\"ListParagraph tm8\"><span class=\"tm11\">mauvais dimensionnement des c\u00e2bles d\u2019alimentation, <\/span><\/li>\n<li class=\"ListParagraph tm8\"><span class=\"tm11\">charges dans les lignes, plus faibles que pr\u00e9vu, <\/span><\/li>\n<li class=\"ListParagraph tm8\"><span class=\"tm11\">mauvais fonctionnement des r\u00e9gleurs en charge des transformateurs des postes source <\/span><\/li>\n<li class=\"ListParagraph tm8\"><span class=\"tm11\">\u2026.<\/span><\/li>\n<\/ul>\n<p>[\/vc_column_text][\/vc_column_inner][\/vc_row_inner][\/vc_column][vc_column width=&#8221;1\/4&#8243;][vc_cta h2=&#8221;T\u00e9l\u00e9chargez la brochure&#8221; txt_align=&#8221;center&#8221; add_button=&#8221;bottom&#8221; btn_title=&#8221;T\u00e9l\u00e9charger&#8221; btn_align=&#8221;center&#8221; add_icon=&#8221;top&#8221; i_icon_fontawesome=&#8221;fas fa-cloud-download-alt&#8221; btn_link=&#8221;url:http%3A%2F%2Felexpert.ma%2Fwp-content%2Fuploads%2F2021%2F07%2FP26.pdf|title:Solutions|target:%20_blank|&#8221;][\/vc_cta][\/vc_column][\/vc_row][vc_row][vc_column][vc_column_text]<\/p>\n<p class=\"Normal tm5\" style=\"text-align: justify;\"><span class=\"tm7\">Quelle que soit la cause des surtensions, leurs effets peuvent \u00eatre d\u00e9vastateurs et impliquer de tr\u00e8s lourdes pertes financi\u00e8res pour les usagers. Les premiers \u00e9quipements \u00e0 \u00eatre d\u00e9truits par les surtensions sont les ballasts \u00e9lectroniques, les variateurs de fr\u00e9quence, les onduleurs, et autres \u00e9quipements d\u2019\u00e9lectronique de puissance.<\/span><\/p>\n<p class=\"Normal tm5\" style=\"text-align: justify;\"><span class=\"tm6\">Une surtension peut \u00e9galement perturber les commandes \u00e9lectroniques, comme les variateurs de vitesse \u00e9lectroniques, qui peuvent se d\u00e9clencher en raison de leurs circuits de protection internes. Certaines surtensions peuvent \u00e9galement d\u00e9grader les mat\u00e9riaux d&#8217;isolation et ainsi raccourcir la dur\u00e9e de vie des \u00e9quipements \u00e9lectriques.<\/span><\/p>\n<p>[\/vc_column_text][\/vc_column][\/vc_row][vc_row cspt-text-color=&#8221;white&#8221; cspt-bg-color=&#8221;globalcolor&#8221; cspt-extended-column=&#8221;last&#8221; full_width=&#8221;stretch_row&#8221; equal_height=&#8221;yes&#8221; content_placement=&#8221;middle&#8221; css=&#8221;.vc_custom_1631311343011{padding-top: 50px !important;padding-bottom: 50px !important;}&#8221;][vc_column width=&#8221;1\/2&#8243;][vc_column_text]Les solutions de protection contre les surtensions sont aussi vari\u00e9es que le sont ces ph\u00e9nom\u00e8nes. En voici une liste non exhaustive:<\/p>\n<ul>\n<li>Parasurtenseurs et parafoudres (BT et HT)<\/li>\n<li>Inductances de ligne<\/li>\n<li>Condensateurs shunt<\/li>\n<li>Batteries de compensation automatiques<\/li>\n<li>G\u00e9n\u00e9rateurs \u00e9lectroniques de VAR\u00a0 (SVG)<\/li>\n<li>Stabilisateurs de tension<\/li>\n<li>Alimentations sans interruption on-line \u00e0 double conversion<\/li>\n<li>Relais \u00e0 maximum de tension (pr\u00e9vention)<\/li>\n<li>Etc.<\/li>\n<\/ul>\n<p>Les solutions sont choisies selon le type de ph\u00e9nom\u00e8ne d\u00e9tect\u00e9 (surtension transitoire, temporaire ou permanente), son origine mais aussi en fonction du co\u00fbt de la solution.[\/vc_column_text][\/vc_column][vc_column width=&#8221;1\/2&#8243;][vc_raw_html]JTNDdmlkZW8lMjBhdXRvcGxheSUyMGxvb3AlMjBtdXRlZCUyMGNvbnRyb2xzJTIwd2lkdGglM0QlMjIxMDAlMjUlMjIlM0UlMEElMjAlMjAlMjAlMjAlM0Nzb3VyY2UlMjBzcmMlM0QlMjJodHRwcyUzQSUyRiUyRmVsZXhwZXJ0Lm1hJTJGd3AtY29udGVudCUyRnZpZGVvcyUyRnByb3RlY3Rpb24tc3VydGVuc2lvbnMud2VibSUyMiUwQSUyMCUyMCUyMCUyMCUyMCUyMCUyMCUyMCUyMCUyMCUyMCUyMHR5cGUlM0QlMjJ2aWRlbyUyRndlYm0lMjIlMjAlM0UlMEElMjAlMjAlMjAlMjBTb3JyeSUyQyUyMHlvdXIlMjBicm93c2VyJTIwZG9lc24lMjd0JTIwc3VwcG9ydCUyMGVtYmVkZGVkJTIwdmlkZW9zLiUwQSUzQyUyRnZpZGVvJTNF[\/vc_raw_html][\/vc_column][\/vc_row][vc_row full_width=&#8221;stretch_row&#8221; css=&#8221;.vc_custom_1591394175233{padding-top: 50px !important;padding-bottom: 50px !important;}&#8221;][vc_column][vc_column_text]La conduite d\u2019une analyse de r\u00e9seau d\u00e9taill\u00e9e, qui comprend une \u00e9valuation de la qualit\u00e9 de la tension aux points critiques de votre installation, combin\u00e9e \u00e0 une analyse approfondie de votre installation et de son environnement est un pr\u00e9alable indispensable pour pouvoir d\u00e9terminer la meilleure solution afin de r\u00e9soudre efficacement ce genre de ph\u00e9nom\u00e8ne.<\/p>\n<p>Les solutions que nous d\u00e9ployons peuvent \u00eatre aussi riches et vari\u00e9es que le sont donc les ph\u00e9nom\u00e8nes de surtension.<\/p>\n<p>Certaines sont des solutions \u00ab\u00a0correctives\u00a0\u00bb qui sont install\u00e9es apr\u00e8s la constatation des d\u00e9g\u00e2ts dans l\u2019installation, et permettent de corriger un probl\u00e8me \u00e0 l\u2019origine de la surtension. D\u2019autres, sont plut\u00f4t pr\u00e9ventives, et permettent de pr\u00e9venir le danger et de prot\u00e9ger l\u2019installation avant m\u00eame que le ph\u00e9nom\u00e8ne ne se produise.<\/p>\n<p>D\u2019ailleurs, on trouve souvent judicieux de combiner plusieurs solutions en m\u00eame temps, afin d\u2019\u00e9liminer ou du moins de r\u00e9duire les risques li\u00e9s aux surtensions.<\/p>\n<p><strong>Nous atouts:<\/strong><\/p>\n<ul>\n<li class=\"ListParagraph tm6\"><span class=\"tm7\">Une expertise \u00e9prouv\u00e9e dans le domaine et un savoir-faire reconnu sur le march\u00e9<\/span><\/li>\n<li class=\"ListParagraph tm6\"><span class=\"tm7\">La garantie d\u2019un prestataire certifi\u00e9 QUALIFOUDRE<\/span><\/li>\n<li class=\"ListParagraph tm6\"><span class=\"tm7\">Plus de 100 missions r\u00e9alis\u00e9es depuis plus de 13 ans avec beaucoup de succ\u00e8s<\/span><\/li>\n<li class=\"ListParagraph tm6\"><span class=\"tm7\">Des \u00e9quipements de mesure de pointe (classe A) et en grand nombre\u00a0: Circutor, A-Eberle, Fluke<\/span><\/li>\n<li class=\"ListParagraph tm6\"><span class=\"tm7\">Des partenariats solides avec les plus grands fabricants mondiaux de solutions de protection contre les surtensions<\/span><\/li>\n<li class=\"ListParagraph tm6\"><span class=\"tm7\">Offre de services de t\u00e9l\u00e9surveillance et de power monitoring<\/span><\/li>\n<li class=\"ListParagraph tm6\"><span class=\"tm7\">Garantie sur le r\u00e9sultat \u2013 double garantie sur le mat\u00e9riel<\/span><\/li>\n<\/ul>\n<p>[\/vc_column_text][\/vc_column][\/vc_row][vc_row disable_element=&#8221;yes&#8221;][vc_column]<div  class=\"creativesplanet-element creativesplanet-element-portfolio cspt-element-portfolio-style-2 creativesplanet-element-viewtype-row-column cspt-sortable-no\" data-show=\"3\" data-columns=\"3\" data-loop=\"false\" data-autoplay=\"false\" data-center=\"false\" data-nav=\"false\" data-dots=\"false\" data-autoplayspeed=\"1000\" data-margin=\"\"><div class=\"creativesplanet-element-inner\"><div class=\"cspt-ele-header-area\"><\/div><div class=\"cspt-element-posts-wrapper row multi-columns-row\"><div class=\"cspt-ele cspt-portfolio-ele col-md-4 batiments-administratifs-et-de-bureaux cspt-term-43 continuite-de-service cspt-term-48 data-centers cspt-term-41 distribution-et-logistique cspt-term-44 economies-denergie cspt-term-46 energie cspt-term-39 enseignement cspt-term-45 hopitaux-et-sante cspt-term-40 industrie cspt-term-36\"><article class=\"creativesplanet-ele creativesplanet-ele-portfolio cspt-portfolio-style-2 cspt-odd\">\r\n\t<div class=\"creativesplanet-post-item\">\t\t\t\t\r\n\t\t<div class=\"cspt-image-wrapper\">\r\n\t\t\t<div class=\"cspt-featured-wrapper\"><a href=\"https:\/\/elexpert.ma\/index.php\/portfolio\/massive-deployment-of-solar-panels\/\"><img loading=\"lazy\" decoding=\"async\" width=\"770\" height=\"500\" src=\"https:\/\/elexpert.ma\/wp-content\/uploads\/2019\/06\/img-05-770x500.jpg\" class=\"attachment-cspt-img-770x500 size-cspt-img-770x500 wp-post-image\" alt=\"\" data-id=\"10058\" \/><\/a><\/div>\t\t<\/div>\t\t\t\r\n\t\t<div class=\"cspt-content-wrapper\">\r\n\t\t\t<h3 class=\"cspt-portfolio-title\"><a href=\"https:\/\/elexpert.ma\/index.php\/portfolio\/massive-deployment-of-solar-panels\/\">Massive Deployment Of Solar<\/a><\/h3>\t\r\n\t\t\t\t\t\t\t<div class=\"cspt-short-description\">\r\n\t\t\t\t\t<p>Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor text ever since&#8230;<\/p>\n\t\t\t\t<\/div>\r\n\t\t\t\t\t\t\t\t\t\t\r\n\t\t\t<div class=\"vc_btn3-container vc_btn3-inline\">\r\n\t\t\t\t<a class=\"vc_general vc_btn3 vc_btn3-size-md vc_btn3-shape-rounded vc_btn3-style-modern vc_btn3-color-globalcolor\" href=\"https:\/\/elexpert.ma\/index.php\/portfolio\/massive-deployment-of-solar-panels\/\" title=\"Massive Deployment Of Solar\"><span>Read More<\/span><\/a>\r\n\t\t\t<\/div>\r\n\t\t<\/div>\r\n\t<\/div>\r\n<\/article><\/div><div class=\"cspt-ele cspt-portfolio-ele col-md-4 banque-et-assurance cspt-term-42 continuite-de-service cspt-term-48 data-centers cspt-term-41 distribution-et-logistique cspt-term-44 economies-denergie cspt-term-46 energie cspt-term-39 hopitaux-et-sante cspt-term-40 industrie cspt-term-36 infrastructures cspt-term-37 telecoms-radio-et-tv cspt-term-38\"><article class=\"creativesplanet-ele creativesplanet-ele-portfolio cspt-portfolio-style-2 cspt-even\">\r\n\t<div class=\"creativesplanet-post-item\">\t\t\t\t\r\n\t\t<div class=\"cspt-image-wrapper\">\r\n\t\t\t<div class=\"cspt-featured-wrapper\"><a href=\"https:\/\/elexpert.ma\/index.php\/portfolio\/swedish-mega-project\/\"><img loading=\"lazy\" decoding=\"async\" width=\"770\" height=\"500\" src=\"https:\/\/elexpert.ma\/wp-content\/uploads\/2019\/06\/img-05-770x500.jpg\" class=\"attachment-cspt-img-770x500 size-cspt-img-770x500 wp-post-image\" alt=\"\" data-id=\"10058\" \/><\/a><\/div>\t\t<\/div>\t\t\t\r\n\t\t<div class=\"cspt-content-wrapper\">\r\n\t\t\t<h3 class=\"cspt-portfolio-title\"><a href=\"https:\/\/elexpert.ma\/index.php\/portfolio\/swedish-mega-project\/\">Swedish Mega Project<\/a><\/h3>\t\r\n\t\t\t\t\t\t\t<div class=\"cspt-short-description\">\r\n\t\t\t\t\t<p>Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor text ever since&#8230;<\/p>\n\t\t\t\t<\/div>\r\n\t\t\t\t\t\t\t\t\t\t\r\n\t\t\t<div class=\"vc_btn3-container vc_btn3-inline\">\r\n\t\t\t\t<a class=\"vc_general vc_btn3 vc_btn3-size-md vc_btn3-shape-rounded vc_btn3-style-modern vc_btn3-color-globalcolor\" href=\"https:\/\/elexpert.ma\/index.php\/portfolio\/swedish-mega-project\/\" title=\"Swedish Mega Project\"><span>Read More<\/span><\/a>\r\n\t\t\t<\/div>\r\n\t\t<\/div>\r\n\t<\/div>\r\n<\/article><\/div><div class=\"cspt-ele cspt-portfolio-ele col-md-4 continuite-de-service cspt-term-48 economies-denergie cspt-term-46 energie cspt-term-39 enseignement cspt-term-45 hopitaux-et-sante cspt-term-40 industrie cspt-term-36 infrastructures cspt-term-37 qualite-denergie cspt-term-47\"><article class=\"creativesplanet-ele creativesplanet-ele-portfolio cspt-portfolio-style-2 cspt-odd\">\r\n\t<div class=\"creativesplanet-post-item\">\t\t\t\t\r\n\t\t<div class=\"cspt-image-wrapper\">\r\n\t\t\t<div class=\"cspt-featured-wrapper\"><a href=\"https:\/\/elexpert.ma\/index.php\/portfolio\/consectetur-adipiscing\/\"><img loading=\"lazy\" decoding=\"async\" width=\"770\" height=\"500\" src=\"https:\/\/elexpert.ma\/wp-content\/uploads\/2019\/06\/img-04-770x500.jpg\" class=\"attachment-cspt-img-770x500 size-cspt-img-770x500 wp-post-image\" alt=\"\" data-id=\"10059\" \/><\/a><\/div>\t\t<\/div>\t\t\t\r\n\t\t<div class=\"cspt-content-wrapper\">\r\n\t\t\t<h3 class=\"cspt-portfolio-title\"><a href=\"https:\/\/elexpert.ma\/index.php\/portfolio\/consectetur-adipiscing\/\">Consectetur adipiscing<\/a><\/h3>\t\r\n\t\t\t\t\t\t\t<div class=\"cspt-short-description\">\r\n\t\t\t\t\t<p>Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor text ever since&#8230;<\/p>\n\t\t\t\t<\/div>\r\n\t\t\t\t\t\t\t\t\t\t\r\n\t\t\t<div class=\"vc_btn3-container vc_btn3-inline\">\r\n\t\t\t\t<a class=\"vc_general vc_btn3 vc_btn3-size-md vc_btn3-shape-rounded vc_btn3-style-modern vc_btn3-color-globalcolor\" href=\"https:\/\/elexpert.ma\/index.php\/portfolio\/consectetur-adipiscing\/\" title=\"Consectetur adipiscing\"><span>Read More<\/span><\/a>\r\n\t\t\t<\/div>\r\n\t\t<\/div>\r\n\t<\/div>\r\n<\/article><\/div><\/div><\/div><!-- .creativesplanet-element-inner -->   <\/div><!-- .creativesplanet-element -->  [\/vc_column][\/vc_row]<\/p>\n<\/div>","protected":false},"parent":12482,"menu_order":0,"template":"","class_list":["post-12022","elexpert_solution","type-elexpert_solution","status-publish","hentry","elxpert_section-qualite-de-lenergie"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v24.8.1 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Protection des installations contre les surtensions - 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-des-installations-contre-les-surtensions\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Protection des installations contre les surtensions - Elexpert\" \/>\n<meta property=\"og:description\" content=\"[vc_row cspt-text-color=&#8221;white&#8221; cspt-bg-image-position=&#8221;right-bottom&#8221; full_width=&#8221;stretch_row&#8221; css=&#8221;.vc_custom_1631310546842{padding-top: 0px !important;padding-bottom: 0px !important;background-image: url(https:\/\/elexpert.ma\/wp-content\/uploads\/2020\/07\/protection-contre-les-surtensions-2.jpg?id=12743) !important;background-position: center !important;background-repeat: no-repeat !important;background-size: contain !important;}&#8221;][vc_column width=&#8221;1\/2&#8243; css=&#8221;.vc_custom_1630251359886{padding-top: 20px !important;background-color: #ff9314 !important;}&#8221;][vc_raw_html]JTVCZWxleHBlcnRfYnJlYWRjcnVtcCU1RA==[\/vc_raw_html][\/vc_column][vc_column width=&#8221;1\/2&#8243;][\/vc_column][\/vc_row][vc_row css=&#8221;.vc_custom_1591394160539{padding-top: 50px !important;padding-bottom: 50px !important;}&#8221;][vc_column width=&#8221;3\/4&#8243;][vc_column_text] Les surtensions constituent la principale cause de d\u00e9faillance des appareils \u00e9lectroniques: Variateurs de vitesse, onduleurs, alimentations stabilis\u00e9es, automates programmables, \u00e9crans de supervision et interfaces Homme-Machine, etc.. Bien que moins fr\u00e9quents que les creux de tension et les interruptions, leurs effets[&hellip;]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/elexpert.ma\/index.php\/solutions\/qualite-denergie\/protection-des-installations-contre-les-surtensions\/\" \/>\n<meta property=\"og:site_name\" content=\"Elexpert\" \/>\n<meta property=\"article:modified_time\" content=\"2021-09-16T13:17:55+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=\"6 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-des-installations-contre-les-surtensions\/\",\"url\":\"https:\/\/elexpert.ma\/index.php\/solutions\/qualite-denergie\/protection-des-installations-contre-les-surtensions\/\",\"name\":\"Protection des installations contre les surtensions - Elexpert\",\"isPartOf\":{\"@id\":\"https:\/\/elexpert.ma\/#website\"},\"datePublished\":\"2020-07-07T23:03:40+00:00\",\"dateModified\":\"2021-09-16T13:17:55+00:00\",\"breadcrumb\":{\"@id\":\"https:\/\/elexpert.ma\/index.php\/solutions\/qualite-denergie\/protection-des-installations-contre-les-surtensions\/#breadcrumb\"},\"inLanguage\":\"fr-FR\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/elexpert.ma\/index.php\/solutions\/qualite-denergie\/protection-des-installations-contre-les-surtensions\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/elexpert.ma\/index.php\/solutions\/qualite-denergie\/protection-des-installations-contre-les-surtensions\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Accueil\",\"item\":\"https:\/\/elexpert.ma\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Qualit\u00e9 d&#8217;\u00e9nergie\",\"item\":\"https:\/\/elexpert.ma\/index.php\/solutions\/qualite-denergie\/\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"Protection des installations contre les surtensions\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/elexpert.ma\/#website\",\"url\":\"https:\/\/elexpert.ma\/\",\"name\":\"Elexpert\",\"description\":\"Votre partenaire pour la maitrise de l&#039;\u00e9nergie \u00e9lectrique\",\"publisher\":{\"@id\":\"https:\/\/elexpert.ma\/#organization\"},\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/elexpert.ma\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"fr-FR\"},{\"@type\":\"Organization\",\"@id\":\"https:\/\/elexpert.ma\/#organization\",\"name\":\"Elexpert\",\"url\":\"https:\/\/elexpert.ma\/\",\"logo\":{\"@type\":\"ImageObject\",\"inLanguage\":\"fr-FR\",\"@id\":\"https:\/\/elexpert.ma\/#\/schema\/logo\/image\/\",\"url\":\"https:\/\/elexpert.ma\/wp-content\/uploads\/2020\/05\/logo-elexpert.jpg\",\"contentUrl\":\"https:\/\/elexpert.ma\/wp-content\/uploads\/2020\/05\/logo-elexpert.jpg\",\"width\":320,\"height\":94,\"caption\":\"Elexpert\"},\"image\":{\"@id\":\"https:\/\/elexpert.ma\/#\/schema\/logo\/image\/\"}}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"Protection des installations contre les surtensions - Elexpert","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/elexpert.ma\/index.php\/solutions\/qualite-denergie\/protection-des-installations-contre-les-surtensions\/","og_locale":"fr_FR","og_type":"article","og_title":"Protection des installations contre les surtensions - Elexpert","og_description":"[vc_row cspt-text-color=&#8221;white&#8221; cspt-bg-image-position=&#8221;right-bottom&#8221; full_width=&#8221;stretch_row&#8221; css=&#8221;.vc_custom_1631310546842{padding-top: 0px !important;padding-bottom: 0px !important;background-image: url(https:\/\/elexpert.ma\/wp-content\/uploads\/2020\/07\/protection-contre-les-surtensions-2.jpg?id=12743) !important;background-position: center !important;background-repeat: no-repeat !important;background-size: contain !important;}&#8221;][vc_column width=&#8221;1\/2&#8243; css=&#8221;.vc_custom_1630251359886{padding-top: 20px !important;background-color: #ff9314 !important;}&#8221;][vc_raw_html]JTVCZWxleHBlcnRfYnJlYWRjcnVtcCU1RA==[\/vc_raw_html][\/vc_column][vc_column width=&#8221;1\/2&#8243;][\/vc_column][\/vc_row][vc_row css=&#8221;.vc_custom_1591394160539{padding-top: 50px !important;padding-bottom: 50px !important;}&#8221;][vc_column width=&#8221;3\/4&#8243;][vc_column_text] Les surtensions constituent la principale cause de d\u00e9faillance des appareils \u00e9lectroniques: Variateurs de vitesse, onduleurs, alimentations stabilis\u00e9es, automates programmables, \u00e9crans de supervision et interfaces Homme-Machine, etc.. Bien que moins fr\u00e9quents que les creux de tension et les interruptions, leurs effets[&hellip;]","og_url":"https:\/\/elexpert.ma\/index.php\/solutions\/qualite-denergie\/protection-des-installations-contre-les-surtensions\/","og_site_name":"Elexpert","article_modified_time":"2021-09-16T13:17:55+00:00","twitter_card":"summary_large_image","twitter_misc":{"Dur\u00e9e de lecture estim\u00e9e":"6 minutes"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/elexpert.ma\/index.php\/solutions\/qualite-denergie\/protection-des-installations-contre-les-surtensions\/","url":"https:\/\/elexpert.ma\/index.php\/solutions\/qualite-denergie\/protection-des-installations-contre-les-surtensions\/","name":"Protection des installations contre les surtensions - Elexpert","isPartOf":{"@id":"https:\/\/elexpert.ma\/#website"},"datePublished":"2020-07-07T23:03:40+00:00","dateModified":"2021-09-16T13:17:55+00:00","breadcrumb":{"@id":"https:\/\/elexpert.ma\/index.php\/solutions\/qualite-denergie\/protection-des-installations-contre-les-surtensions\/#breadcrumb"},"inLanguage":"fr-FR","potentialAction":[{"@type":"ReadAction","target":["https:\/\/elexpert.ma\/index.php\/solutions\/qualite-denergie\/protection-des-installations-contre-les-surtensions\/"]}]},{"@type":"BreadcrumbList","@id":"https:\/\/elexpert.ma\/index.php\/solutions\/qualite-denergie\/protection-des-installations-contre-les-surtensions\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Accueil","item":"https:\/\/elexpert.ma\/"},{"@type":"ListItem","position":2,"name":"Qualit\u00e9 d&#8217;\u00e9nergie","item":"https:\/\/elexpert.ma\/index.php\/solutions\/qualite-denergie\/"},{"@type":"ListItem","position":3,"name":"Protection des installations contre les surtensions"}]},{"@type":"WebSite","@id":"https:\/\/elexpert.ma\/#website","url":"https:\/\/elexpert.ma\/","name":"Elexpert","description":"Votre partenaire pour la maitrise de l&#039;\u00e9nergie \u00e9lectrique","publisher":{"@id":"https:\/\/elexpert.ma\/#organization"},"potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/elexpert.ma\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"fr-FR"},{"@type":"Organization","@id":"https:\/\/elexpert.ma\/#organization","name":"Elexpert","url":"https:\/\/elexpert.ma\/","logo":{"@type":"ImageObject","inLanguage":"fr-FR","@id":"https:\/\/elexpert.ma\/#\/schema\/logo\/image\/","url":"https:\/\/elexpert.ma\/wp-content\/uploads\/2020\/05\/logo-elexpert.jpg","contentUrl":"https:\/\/elexpert.ma\/wp-content\/uploads\/2020\/05\/logo-elexpert.jpg","width":320,"height":94,"caption":"Elexpert"},"image":{"@id":"https:\/\/elexpert.ma\/#\/schema\/logo\/image\/"}}]}},"_links":{"self":[{"href":"https:\/\/elexpert.ma\/index.php\/wp-json\/wp\/v2\/elexpert_solution\/12022","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/elexpert.ma\/index.php\/wp-json\/wp\/v2\/elexpert_solution"}],"about":[{"href":"https:\/\/elexpert.ma\/index.php\/wp-json\/wp\/v2\/types\/elexpert_solution"}],"up":[{"embeddable":true,"href":"https:\/\/elexpert.ma\/index.php\/wp-json\/wp\/v2\/elexpert_solution\/12482"}],"wp:attachment":[{"href":"https:\/\/elexpert.ma\/index.php\/wp-json\/wp\/v2\/media?parent=12022"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}