{"id":233,"date":"2025-11-17T16:07:14","date_gmt":"2025-11-17T15:07:14","guid":{"rendered":"https:\/\/lilaklights.com\/blog\/?p=233"},"modified":"2026-08-29T16:48:49","modified_gmt":"2026-08-29T14:48:49","slug":"systeme-electrique-distribution","status":"publish","type":"post","link":"https:\/\/lilaklights.com\/blog\/fr\/systeme-electrique-distribution\/","title":{"rendered":"Comment l\u2019\u00e9lectricit\u00e9 est-elle distribu\u00e9e ?"},"content":{"rendered":"\n<figure class=\"wp-block-image aligncenter size-large is-resized is-style-default\"><img decoding=\"async\" width=\"1024\" height=\"612\" src=\"https:\/\/lilaklights.com\/blog\/wp-content\/uploads\/2026\/05\/Post2_power_distribution-1024x612.webp\" alt=\"Image conceptuelle de plusieurs pyl\u00f4nes \u00e9lectriques reli\u00e9s entre eux.\" class=\"wp-image-870\" style=\"width:630px;height:auto\" srcset=\"https:\/\/lilaklights.com\/blog\/wp-content\/uploads\/2026\/05\/Post2_power_distribution-1024x612.webp 1024w, https:\/\/lilaklights.com\/blog\/wp-content\/uploads\/2026\/05\/Post2_power_distribution-300x179.webp 300w, https:\/\/lilaklights.com\/blog\/wp-content\/uploads\/2026\/05\/Post2_power_distribution-768x459.webp 768w, https:\/\/lilaklights.com\/blog\/wp-content\/uploads\/2026\/05\/Post2_power_distribution-1536x919.webp 1536w, https:\/\/lilaklights.com\/blog\/wp-content\/uploads\/2026\/05\/Post2_power_distribution.webp 1622w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p class=\"has-ast-global-color-4-color has-text-color has-background has-link-color wp-elements-1 wp-block-paragraph\" style=\"background-color:#830cc4\">Article relu par <a href=\"https:\/\/es.linkedin.com\/in\/jesusandradegomez\" data-type=\"link\" data-id=\"https:\/\/es.linkedin.com\/in\/jesusandradegomez\" target=\"_blank\" rel=\"noopener\">Jes\u00fas Andrade<\/a>, ing\u00e9nieur en \u00e9lectronique et titulaire d\u2019un MBA de l\u2019ESIC. Il associe vingt ann\u00e9es d\u2019exp\u00e9rience dans la conception de luminaires de secours et de dispositifs de pr\u00e9vention des risques \u00e0 une solide formation en gestion d\u2019entreprise. Jes\u00fas Andrade est actuellement CTO de SVE Worldwide, une entreprise sp\u00e9cialis\u00e9e dans le d\u00e9veloppement de solutions de pr\u00e9vention destin\u00e9es \u00e0 l\u2019industrie.<\/p>\n\n\n\n<h2 id=\"intro\" class=\"wp-block-heading\">Le r\u00e9seau de distribution dans le syst\u00e8me \u00e9lectrique<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Le syst\u00e8me \u00e9lectrique, ou r\u00e9seau \u00e9lectrique, est divis\u00e9 en trois grandes parties : <a href=\"https:\/\/lilaklights.com\/blog\/fr\/systeme-production-renouvelables-fossiles\/\" data-type=\"link\" data-id=\"https:\/\/lilaklights.com\/blog\/fr\/systeme-production-renouvelables-fossiles\/\">les syst\u00e8mes de production d\u2019\u00e9lectricit\u00e9<\/a>, <a href=\"https:\/\/lilaklights.com\/blog\/fr\/consommation-electricite-mix-energetique\/\" data-type=\"link\" data-id=\"https:\/\/lilaklights.com\/blog\/fr\/consommation-electricite-mix-energetique\/\">les consommateurs<\/a> et le r\u00e9seau de distribution. Dans ce post, nous allons nous concentrer sur le r\u00e9seau de distribution.<\/p>\n\n\n\n<div class=\"wp-block-group is-layout-constrained wp-container-core-group-is-layout-5d2166b0 wp-block-group-is-layout-constrained\">\n<figure class=\"wp-block-video\"><video height=\"296\" style=\"aspect-ratio: 412 \/ 296;\" width=\"412\" autoplay loop muted src=\"https:\/\/lilaklights.com\/blog\/wp-content\/uploads\/2025\/11\/Post2_gif1.mp4\" playsinline><\/video><\/figure>\n<\/div>\n\n\n\n<p class=\"has-text-color has-link-color has-medium-font-size wp-elements-2 wp-block-paragraph\" style=\"color:#830cc4\"><strong>Sommaire<\/strong><\/p>\n\n\n\n<p class=\"has-medium-font-size wp-block-paragraph\" style=\"font-style:italic;font-weight:100\"><a href=\"#Cl\u00e9s-de-la-distribution-du-syst\u00e8me-\u00e9lectrique\" data-type=\"internal\" data-id=\"#Cl\u00e9s-de-la-distribution-du-syst\u00e8me-\u00e9lectrique\">Cl\u00e9s de la distribution du syst\u00e8me \u00e9lectrique<\/a><\/p>\n\n\n\n<p class=\"has-medium-font-size wp-block-paragraph\" style=\"font-style:italic;font-weight:100\"><a href=\"#Les-\u00e9tapes-du-transport-de-l\u2019\u00e9nergie-\u00e9lectrique\" data-type=\"internal\" data-id=\"#Les-\u00e9tapes-du-transport-de-l\u2019\u00e9nergie-\u00e9lectrique\">Comment fonctionne le r\u00e9seau de transport d\u2019\u00e9lectricit\u00e9 ?<\/a><\/p>\n\n\n\n<p class=\"has-medium-font-size wp-block-paragraph\" style=\"font-style:italic;font-weight:100\"><a href=\"#Les-conducteurs-dans-la-distribution-\u00e9lectrique\" data-type=\"internal\" data-id=\"#Les-conducteurs-dans-la-distribution-\u00e9lectrique\">Des c\u00e2bles pour que la lumi\u00e8re arrive jusqu\u2019\u00e0 la maison<\/a><\/p>\n\n\n\n<h2 id=\"Cl\u00e9s-de-la-distribution-du-syst\u00e8me-\u00e9lectrique\" class=\"wp-block-heading\">Cl\u00e9s de la distribution du syst\u00e8me \u00e9lectrique<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Le r\u00e9seau de transport permet d\u2019acheminer l\u2019\u00e9nergie depuis les points de production (syst\u00e8mes de production conventionnels ou syst\u00e8mes d\u2019\u00e9nergies renouvelables) jusqu\u2019aux centres de consommation (chez toi, par exemple). Ces distances sont parcourues par tron\u00e7ons qui fonctionnent \u00e0 des tensions diff\u00e9rentes : apr\u00e8s la haute tension, les centres de consommation de forte puissance re\u00e7oivent l\u2019\u00e9nergie en moyenne tension et, enfin, en approchant des villes, en basse tension.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Autrement dit, ta maison n\u2019est pas reli\u00e9e directement \u00e0 une centrale nucl\u00e9aire, mais \u00e0 des postes \u00e9lectriques de plus basse tension, afin que tu puisses recevoir l\u2019\u00e9lectricit\u00e9 \u00e0 une tension adapt\u00e9e. Ce transport fait partie int\u00e9grante du syst\u00e8me \u00e9lectrique. Bon, d\u2019accord pour l\u2019instant, mais comment fait-on concr\u00e8tement pour faire baisser ces tensions ?<\/p>\n\n\n\n<div class=\"wp-block-group is-layout-constrained wp-container-core-group-is-layout-5d2166b0 wp-block-group-is-layout-constrained\">\n<figure class=\"wp-block-video\"><video height=\"320\" style=\"aspect-ratio: 480 \/ 320;\" width=\"480\" autoplay loop muted src=\"https:\/\/lilaklights.com\/blog\/wp-content\/uploads\/2025\/11\/Post2_gif2.mp4\" playsinline><\/video><\/figure>\n<\/div>\n\n\n\n<h3 id=\"Les-\u00e9tapes-du-transport-de-l\u2019\u00e9nergie-\u00e9lectrique\" class=\"wp-block-heading\">Les \u00e9tapes du transport de l\u2019\u00e9nergie \u00e9lectrique<\/h3>\n\n\n\n<h4 class=\"wp-block-heading\">Qu\u2019est-ce qu\u2019un transformateur ?<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">Pour faire baisser progressivement les tensions, on utilise des postes \u00e9lectriques dont l\u2019\u00e9l\u00e9ment cl\u00e9 est le transformateur. Les transformateurs fonctionnent comme des g\u00e9n\u00e9rateurs et des moteurs, \u00e0 la diff\u00e9rence pr\u00e8s qu\u2019ils restent immobiles.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Le r\u00e9seau de distribution en moyenne tension est compos\u00e9 de pyl\u00f4nes semblables \u00e0 ceux de la haute tension, mais de taille plus r\u00e9duite. Gr\u00e2ce \u00e0 ces pyl\u00f4nes, on arrive jusqu\u2019aux abords des villes, o\u00f9 l\u2019on se raccorde ensuite au c\u00e2ble noir torsad\u00e9, celui qui arrive finalement chez toi.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">Les \u00e9tapes du transport de l\u2019\u00e9lectricit\u00e9<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">Ainsi, le transport de l\u2019\u00e9nergie \u00e9lectrique peut \u00eatre divis\u00e9 en plusieurs \u00e9tapes :<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">1) Les centrales ou postes de production<br>La premi\u00e8re \u00e9tape du transport, ce sont les centrales ou stations o\u00f9 l\u2019\u00e9lectricit\u00e9 est produite. L\u2019origine de l\u2019\u00e9nergie peut varier consid\u00e9rablement. En g\u00e9n\u00e9ral, on produit entre 10 et 20 kilovolts, c\u2019est-\u00e0-dire entre 10 000 et 20 000 volts. Pour que l\u2019\u00e9lectricit\u00e9 arrive jusqu\u2019aux villes ou aux sites industriels, il faut parfois parcourir de grandes distances, et il est donc n\u00e9cessaire d\u2019augmenter fortement la tension.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">2) Le poste de transport<br>L\u2019\u00e9tape suivante est le poste de transport, qui augmente la tension gr\u00e2ce \u00e0 un transformateur \u00e9l\u00e9vateur afin de r\u00e9duire la section des c\u00e2bles et les pertes \u00e9lectriques. L\u2019augmentation de tension d\u00e9pend de la distance \u00e0 parcourir et du type d\u2019installations qui seront finalement aliment\u00e9es. On se situe g\u00e9n\u00e9ralement entre 200 000 et 380 000 volts, soit entre 200 et 380 kilovolts. Plus les pyl\u00f4nes sont hauts, plus la tension qu\u2019ils transportent est \u00e9lev\u00e9e.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">3) Les postes de sous-transport (ou de subtransmission)<br>L\u2019\u00e9nergie \u00e9lectrique est ensuite distribu\u00e9e dans plusieurs directions vers les postes de sous-transport les plus adapt\u00e9s. Ces postes se trouvent plus pr\u00e8s de l\u2019utilisateur final et, en cons\u00e9quence, la tension y est r\u00e9duite par un transformateur abaisseur \u00e0 un niveau appropri\u00e9. La tension est ramen\u00e9e \u00e0 environ 60 000 volts.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">4) Le poste de distribution<br>\u00c0 la quatri\u00e8me \u00e9tape, l\u2019\u00e9lectricit\u00e9 est envoy\u00e9e vers le poste de distribution, o\u00f9 la tension est de nouveau r\u00e9duite par des transformateurs abaisseurs \u00e0 des niveaux utilisables. L\u2019\u00e9nergie \u00e9lectrique est ensuite distribu\u00e9e aux logements (230\u2013240 volts) et aux installations ou entreprises (en g\u00e9n\u00e9ral 400 volts).<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">5) Les transformateurs pr\u00e8s des habitations<br>Dans chaque quartier, ou \u00e0 proximit\u00e9 des maisons, on trouve des transformateurs qui ajustent la tension au niveau appropri\u00e9 pour son utilisation. Par exemple, une grande usine industrielle utilisera ses propres transformateurs abaisseurs sur son site afin d\u2019obtenir les diff\u00e9rents niveaux de tension n\u00e9cessaires \u00e0 ses \u00e9quipements.<\/p>\n\n\n\n<div class=\"wp-block-group is-layout-constrained wp-container-core-group-is-layout-06c1fcaf wp-block-group-is-layout-constrained\">\n<div class=\"wp-block-group is-layout-constrained wp-container-core-group-is-layout-5d2166b0 wp-block-group-is-layout-constrained\">\n<figure class=\"wp-block-video\"><video height=\"360\" style=\"aspect-ratio: 480 \/ 360;\" width=\"480\" autoplay loop muted src=\"https:\/\/lilaklights.com\/blog\/wp-content\/uploads\/2025\/11\/Post2_gif3.mp4\" playsinline><\/video><\/figure>\n<\/div>\n<\/div>\n\n\n\n<h3 id=\"Les-conducteurs-dans-la-distribution-\u00e9lectrique\" class=\"wp-block-heading\">Les conducteurs dans la distribution \u00e9lectrique<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">En ce qui concerne le c\u00e2blage ou les conducteurs, ils constituent l\u2019une des parties les plus importantes de la distribution \u00e9lectrique, car ce sont eux qui transportent l\u2019\u00e9nergie depuis sa source jusqu\u2019\u00e0 son point d\u2019utilisation. Les c\u00e2bles qui traversent le pays sont relativement fins en diam\u00e8tre si on les compare aux tr\u00e8s hautes tensions qu\u2019ils transportent. Cela est li\u00e9 \u00e0 l\u2019intensit\u00e9 du courant : plus l\u2019intensit\u00e9 est faible, plus le transport de l\u2019\u00e9nergie est \u00e9conomique et efficace.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Pour r\u00e9pondre \u00e0 la question \u00ab <strong>comment l\u2019\u00e9lectricit\u00e9 est-elle distribu\u00e9e ?<\/strong> \u00bb, il faut garder \u00e0 l\u2019esprit que sa distribution se fait en plusieurs \u00e9tapes avant d\u2019arriver jusqu\u2019\u00e0 nos foyers.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">La prochaine fois que tu verras des lignes haute tension avec leurs c\u00e2bles noirs, pense que c\u2019est gr\u00e2ce \u00e0 elles que le syst\u00e8me \u00e9lectrique fonctionne correctement et que nous pouvons profiter de l\u2019\u00e9lectricit\u00e9 dans nos maisons. Mais attention : mieux vaut ne pas les toucher ! \ud83d\udd0c\u26a1<\/p>\n\n\n\n<div class=\"wp-block-group is-layout-constrained wp-container-core-group-is-layout-5d2166b0 wp-block-group-is-layout-constrained\">\n<figure class=\"wp-block-video\"><video height=\"269\" style=\"aspect-ratio: 361 \/ 269;\" width=\"361\" autoplay loop muted src=\"https:\/\/lilaklights.com\/blog\/wp-content\/uploads\/2025\/11\/Post2_gif4.webm\" playsinline><\/video><\/figure>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>Distribution de l\u2019\u00e9lectricit\u00e9 : comment elle passe des lignes haute tension et postes jusqu\u2019aux foyers et entreprises.<\/p>\n","protected":false},"author":1,"featured_media":870,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[27],"tags":[],"class_list":["post-233","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-sin-categoria-fr"],"_links":{"self":[{"href":"https:\/\/lilaklights.com\/blog\/wp-json\/wp\/v2\/posts\/233","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/lilaklights.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/lilaklights.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/lilaklights.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/lilaklights.com\/blog\/wp-json\/wp\/v2\/comments?post=233"}],"version-history":[{"count":19,"href":"https:\/\/lilaklights.com\/blog\/wp-json\/wp\/v2\/posts\/233\/revisions"}],"predecessor-version":[{"id":1305,"href":"https:\/\/lilaklights.com\/blog\/wp-json\/wp\/v2\/posts\/233\/revisions\/1305"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/lilaklights.com\/blog\/wp-json\/wp\/v2\/media\/870"}],"wp:attachment":[{"href":"https:\/\/lilaklights.com\/blog\/wp-json\/wp\/v2\/media?parent=233"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/lilaklights.com\/blog\/wp-json\/wp\/v2\/categories?post=233"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/lilaklights.com\/blog\/wp-json\/wp\/v2\/tags?post=233"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}