{"id":7579,"date":"2023-10-06T11:06:11","date_gmt":"2023-10-06T10:06:11","guid":{"rendered":"https:\/\/www.voltwork.fr\/?p=7579"},"modified":"2026-03-23T09:21:35","modified_gmt":"2026-03-23T08:21:35","slug":"electrical-distances-and-zones","status":"publish","type":"post","link":"https:\/\/www.voltwork.fr\/en\/nf-c18-510-standard\/electrical-distances-and-zones\/","title":{"rendered":"Electrical Authorization: Distances and Zones [2026]"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">The concepts of electrical environment zones and approach distances defined by the NF C18-510 standard are essential to any <a href=\"https:\/\/www.voltwork.fr\/en\/electrical-authorization-training-center\/\">electrical authorization training<\/a>. These are fundamental aspects to master in order to prevent all electrical risks.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">When an operation must be carried out near live bare parts, the primary prevention measure is always to work de-energized after a lockout\/tagout procedure. In many cases, it is not feasible to lock out or de-energize an installation or facility because operating conditions make de-energization dangerous or impossible. For example, if the electrical room of a supermarket needs to be repainted, it will generally not be possible to lock out the installation (cold chain interruption, public access, etc.).<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">In such cases, work must be carried out near live bare parts, which involves risks: compliance with approach distances and environment zones is paramount.<\/p>\n\n\n\n<div style=\"height:40px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h2 class=\"gb-headline gb-headline-a30e10c0 gb-headline-text\">APPROACH DISTANCES<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Safety distances are defined between an operator and an electrical installation or facility. These distances depend on the nominal voltage of a live bare part and on the type of installation or facility.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">They are used to determine the various zones in the environment of open-air installations or facilities and indoor installations.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">They also determine the safety distances to be observed for all visible or concealed electrical conduits in the environment.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Four types of distances are defined from a live bare part.<\/p>\n\n\n\n<div style=\"height:40px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h3 class=\"gb-headline gb-headline-a1912c0a gb-headline-text\"><strong>Investigation Limit Distance (DLI)<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">It is set at 50 meters from live bare parts. It also defines the outer boundary of the investigation zone.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u26a1 It is from this DLI that the employer must carry out an electrical risk assessment.<\/strong><\/p>\n\n\n\n<div style=\"height:40px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h3 class=\"gb-headline gb-headline-a030e8b4 gb-headline-text\"><strong>Simple Vicinity Limit Distance (DLVS)<\/strong>&nbsp;<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">It defines the outer boundary of the simple vicinity zone:<\/p>\n\n\n\n<figure class=\"gb-block-image gb-block-image-aaf8f45d\"><img loading=\"lazy\" decoding=\"async\" width=\"502\" height=\"114\" class=\"gb-image gb-image-aaf8f45d\" src=\"https:\/\/www.voltwork.fr\/wp-content\/uploads\/2023\/10\/distance-limite-de-voisinage-simple-1.png\" alt=\"simple vicinity limit distances for electrical authorization according to NF C18-510 standard\" title=\"distance-limite-de-voisinage-simple\" srcset=\"https:\/\/www.voltwork.fr\/wp-content\/uploads\/2023\/10\/distance-limite-de-voisinage-simple-1.png 502w, https:\/\/www.voltwork.fr\/wp-content\/uploads\/2023\/10\/distance-limite-de-voisinage-simple-1-300x68.png 300w\" sizes=\"auto, (max-width: 502px) 100vw, 502px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u26a1 It is from this DLVS that electrical authorization becomes mandatory.<\/strong> You must at minimum have completed <a href=\"https:\/\/www.voltwork.fr\/en\/electrical-authorization-training-center\/h0b0-training-electrical-authorization-non-electrician\/\">H0B0 electrical authorization training<\/a> or be accompanied by an authorized person.<\/p>\n\n\n\n<div style=\"height:40px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h3 class=\"gb-headline gb-headline-a3fe53d0 gb-headline-text\"><strong>Reinforced Vicinity Limit Distance (DLVR)<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">It differs depending on the voltage, as DLVR LV and DLVR HV:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>The DLVR LV is set at 30 cm from a live bare part in the Low Voltage domain. It is necessary to wear personal protective equipment (PPE) in this zone, at minimum insulating gloves and a face shield.<\/li>\n\n\n\n<li>The DLVR HV depends on the voltage of the live bare part in the High Voltage domain, as shown in the table below.<\/li>\n<\/ul>\n\n\n\n<figure class=\"gb-block-image gb-block-image-ae97272b\"><img loading=\"lazy\" decoding=\"async\" width=\"581\" height=\"137\" class=\"gb-image gb-image-ae97272b\" src=\"https:\/\/www.voltwork.fr\/wp-content\/uploads\/2023\/10\/distance-limite-voisinage-renforce-1.png\" alt=\"reinforced vicinity distances for electrical authorization\" title=\"distance-limite-voisinage-renforce\" srcset=\"https:\/\/www.voltwork.fr\/wp-content\/uploads\/2023\/10\/distance-limite-voisinage-renforce-1.png 581w, https:\/\/www.voltwork.fr\/wp-content\/uploads\/2023\/10\/distance-limite-voisinage-renforce-1-300x71.png 300w\" sizes=\"auto, (max-width: 581px) 100vw, 581px\" \/><\/figure>\n\n\n\n<div style=\"height:40px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h3 class=\"gb-headline gb-headline-a7f68149 gb-headline-text\"><strong>Minimum Approach Distance (DMA)<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">In Low Voltage, the DMA coincides with the DLVR.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u26a1 In HV, the DMA is the absolute limit distance that must never be crossed: it protects against the risk of arc flash and varies according to voltage.<\/strong><\/p>\n\n\n\n<h2 class=\"gb-headline gb-headline-a7354fe7 gb-headline-text\">ELECTRICAL ENVIRONMENT ZONES<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">The safety distances presented above are used to define the electrical environment zones.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"689\" height=\"485\" src=\"https:\/\/www.voltwork.fr\/wp-content\/uploads\/2023\/10\/zones_environnement-1.png\" alt=\"electrical environment zones diagram according to NF C18-510\" class=\"wp-image-2124\" srcset=\"https:\/\/www.voltwork.fr\/wp-content\/uploads\/2023\/10\/zones_environnement-1.png 689w, https:\/\/www.voltwork.fr\/wp-content\/uploads\/2023\/10\/zones_environnement-1-300x211.png 300w\" sizes=\"auto, (max-width: 689px) 100vw, 689px\" \/><\/figure>\n\n\n\n<div style=\"height:30px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\ud83d\udd35 Zone 0:<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Investigation zone (DLI) where non-authorized personnel can work without risk. The inner boundaries of the zone (DLVS) must be clearly marked. No electrical authorization is required in this zone.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\ud83d\udfe2 Zone 1:<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Simple vicinity zone (DLVS), access restricted to personnel authorized for the voltage domain of the zone or to personnel who have received safety instructions and are accompanied by an authorized person. You must at minimum hold a B0 authorization for Low Voltage and H0 for High Voltage.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\ud83d\udfe1 Zone 2:<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Reinforced vicinity zone (DLVR), access restricted to authorized personnel designated by the employer and permitted to work in the vicinity of live bare parts in High Voltage. You must hold H0V, H1V or H2V authorization.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\ud83d\udfe0 Zone 3:<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">High Voltage live work zone (DMA), accessible only to electricians trained and authorized for live work, where specific rules must be applied (concerns High Voltage only).<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\ud83d\udd34 Zone 4:<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Low Voltage reinforced vicinity zone (DMA) where the rules for general LV interventions or LV live work apply, as well as other LV operations (switching, measurement, testing and verification). PPE (insulating gloves, face shield, etc.) must be worn when operating in this zone.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Analyzing the zones requires identifying the type of electrical environment. There are 3 types of electrical environments:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Open-air zones<\/strong><\/li>\n\n\n\n<li><strong>Zones within rooms with restricted access for electricians<\/strong><\/li>\n\n\n\n<li><strong>Zones created by opening a switchboard, an electrical panel or the enclosure of electrical equipment<\/strong><\/li>\n<\/ul>\n\n\n\n<div style=\"height:40px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h3 class=\"gb-headline gb-headline-a241c7a4 gb-headline-text\"><strong>Open-air zones:<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">These are unobstructed spaces surrounding a live bare part. This type of environment mainly concerns overhead bare conductors under tension, in High Voltage or Low Voltage. In this environment, you have an investigation zone (Zone 0).<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"689\" height=\"485\" src=\"https:\/\/www.voltwork.fr\/wp-content\/uploads\/2023\/10\/zones_environnement-1.png\" alt=\"electrical environment zones in open-air configuration\" class=\"wp-image-2124\" srcset=\"https:\/\/www.voltwork.fr\/wp-content\/uploads\/2023\/10\/zones_environnement-1.png 689w, https:\/\/www.voltwork.fr\/wp-content\/uploads\/2023\/10\/zones_environnement-1-300x211.png 300w\" sizes=\"auto, (max-width: 689px) 100vw, 689px\" \/><\/figure>\n\n\n\n<div style=\"height:40px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h3 class=\"gb-headline gb-headline-a5abbdd6 gb-headline-text\"><strong>Rooms with restricted access for electricians:<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">These rooms are (normally) marked with an electrical hazard warning triangle because live bare parts may be present.<\/p>\n\n\n\n<figure class=\"gb-block-image gb-block-image-ad79e9c2\"><img decoding=\"async\" class=\"gb-image gb-image-ad79e9c2\" src=\"https:\/\/lh3.googleusercontent.com\/PvK_kopIJ8kLAufZt9vtzBhL2B97e16Obj9XQMuvhPzAnY1M_CreggD8ZzpWBTft7sJQ_CKNk36hWLJgmcri4wKil6wdQZS3P8exo0WDxQ8P6ebRylbwygaDYRXtGW10TrPE7E1gw5_QF4Hprj6rEzo\" alt=\"sign indicating a room with restricted access for electricians\" title=\"local-acc\u00e8s-r\u00e9serv\u00e9-\u00e9lectricien\"\/><\/figure>\n\n\n\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u26a1 In these rooms, the investigation zone (Zone 0) does not exist. You immediately enter Zone 1 once you pass through the door: the inner face of the room or enclosure represents the boundary of Zone 1, regardless of the distance to the live bare part.<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Here is an example of zone layout in a room with restricted access for electricians in Low Voltage:<\/p>\n\n\n\n<figure class=\"gb-block-image gb-block-image-a8cc1094\"><img loading=\"lazy\" decoding=\"async\" width=\"477\" height=\"437\" class=\"gb-image gb-image-a8cc1094\" src=\"https:\/\/www.voltwork.fr\/wp-content\/uploads\/2023\/10\/local-acces-reserve-electricien.png\" alt=\"zone layout in a room with restricted access for electricians in Low Voltage\" title=\"local-acces-reserve-electricien\" srcset=\"https:\/\/www.voltwork.fr\/wp-content\/uploads\/2023\/10\/local-acces-reserve-electricien.png 477w, https:\/\/www.voltwork.fr\/wp-content\/uploads\/2023\/10\/local-acces-reserve-electricien-300x275.png 300w\" sizes=\"auto, (max-width: 477px) 100vw, 477px\" \/><\/figure>\n\n\n\n<h3 class=\"gb-headline gb-headline-a3f7ceca gb-headline-text\"><strong>Zones created by opening a switchboard, an electrical panel or the enclosure of electrical equipment<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Whenever the enclosure of energized electrical equipment or the door of a switchboard or panel is opened, there is a risk of coming into contact with a live bare part: the requirements of the NF C18-510 standard must be applied. For example:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Opening the door of an IP2X electrical panel located in a room<\/li>\n\n\n\n<li>Removing the casing of a computer tower that is energized<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">In such cases, <strong>the open-air zones and distances<\/strong> apply.<\/p>\n\n\n<div class=\"gb-container gb-container-ac786854\">\n\n<h4 class=\"gb-headline gb-headline-a5d661a6\"><span class=\"gb-icon\"><svg aria-hidden=\"true\" role=\"img\" height=\"1em\" width=\"1em\" viewBox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path fill=\"currentColor\" d=\"M16 132h416c8.837 0 16-7.163 16-16V76c0-8.837-7.163-16-16-16H16C7.163 60 0 67.163 0 76v40c0 8.837 7.163 16 16 16zm0 160h416c8.837 0 16-7.163 16-16v-40c0-8.837-7.163-16-16-16H16c-8.837 0-16 7.163-16 16v40c0 8.837 7.163 16 16 16zm0 160h416c8.837 0 16-7.163 16-16v-40c0-8.837-7.163-16-16-16H16c-8.837 0-16 7.163-16 16v40c0 8.837 7.163 16 16 16z\"><\/path><\/svg><\/span><span class=\"gb-headline-text\">You may also be interested in:<\/span><\/h4>\n\n\n\n<p class=\"gb-headline gb-headline-a781314c\"><span class=\"gb-icon\"><svg aria-hidden=\"true\" role=\"img\" height=\"1em\" width=\"1em\" viewBox=\"0 0 256 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path fill=\"currentColor\" d=\"M224.3 273l-136 136c-9.4 9.4-24.6 9.4-33.9 0l-22.6-22.6c-9.4-9.4-9.4-24.6 0-33.9l96.4-96.4-96.4-96.4c-9.4-9.4-9.4-24.6 0-33.9L54.3 103c9.4-9.4 24.6-9.4 33.9 0l136 136c9.5 9.4 9.5 24.6.1 34z\"><\/path><\/svg><\/span><span class=\"gb-headline-text\"><a href=\"https:\/\/www.voltwork.fr\/en\/nf-c18-510-standard\/understanding-electrical-authorization-symbols\/\">Understanding Electrical Authorization Symbols<\/a><\/span><\/p>\n\n\n\n<p class=\"gb-headline gb-headline-a204bf27\"><span class=\"gb-icon\"><svg aria-hidden=\"true\" role=\"img\" height=\"1em\" width=\"1em\" viewBox=\"0 0 256 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path fill=\"currentColor\" d=\"M224.3 273l-136 136c-9.4 9.4-24.6 9.4-33.9 0l-22.6-22.6c-9.4-9.4-9.4-24.6 0-33.9l96.4-96.4-96.4-96.4c-9.4-9.4-9.4-24.6 0-33.9L54.3 103c9.4-9.4 24.6-9.4 33.9 0l136 136c9.5 9.4 9.5 24.6.1 34z\"><\/path><\/svg><\/span><span class=\"gb-headline-text\"><a href=\"https:\/\/www.voltwork.fr\/en\/electrical-authorization-guides\/electrical-lockout-certificate\/\">The Electrical Lockout Certificate: Template &amp; Usage<\/a><\/span><\/p>\n\n<\/div>","protected":false},"excerpt":{"rendered":"<p>Understand approach distances (DLI, DLVS, DLVR, DMA) and electrical environment zones defined by NF C18-510. Essential for electrical authorization training.<\/p>\n","protected":false},"author":2,"featured_media":6677,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[38,37],"tags":[],"class_list":["post-7579","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-electrical-authorization-guides","category-nf-c18-510-standard","infinite-scroll-item","generate-columns","tablet-grid-50","mobile-grid-100","grid-parent","grid-33"],"_generate_element_type":null,"_generate_element_display_conditions":null,"_generate_hook":null,"sous_titre_hero_2":null,"zone_intervention":null,"titre_format_de_formation":null,"format_formation":null,"_generate-full-width-content":null,"_generate-disable-headline":"true","_yoast_wpseo_metadesc":"Understand approach distances (DLI, DLVS, DLVR, DMA) and electrical environment zones defined by NF C18-510.","sous-titre":null,"image_hero":null,"h1_villes":null,"h2_catalogue":null,"sous_titre_catalogue":null,"presentation_voltwork":null,"se_former_aux_he":null,"objectif_h0b0":null,"objectif_bs_be":null,"objectif_b1_b2":null,"objectif_h1_h2":null,"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.9 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Electrical Authorization: Distances and Zones [2026]<\/title>\n<meta name=\"description\" content=\"Understand approach distances (DLI, DLVS, DLVR, DMA) and electrical environment zones defined by NF C18-510.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.voltwork.fr\/en\/nf-c18-510-standard\/electrical-distances-and-zones\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Electrical Authorization: Distances and Zones [2026]\" \/>\n<meta property=\"og:description\" content=\"Understand approach distances (DLI, DLVS, DLVR, DMA) and electrical environment zones defined by NF C18-510.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.voltwork.fr\/en\/nf-c18-510-standard\/electrical-distances-and-zones\/\" \/>\n<meta property=\"og:site_name\" content=\"VoltWork\" \/>\n<meta property=\"article:published_time\" content=\"2023-10-06T10:06:11+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2026-03-23T08:21:35+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.voltwork.fr\/wp-content\/uploads\/2023\/10\/image-mise-en-avant-distances-et-zones.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"353\" \/>\n\t<meta property=\"og:image:height\" content=\"250\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"Quentin Nicolas\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Quentin Nicolas\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"7 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":[\"Article\",\"BlogPosting\"],\"@id\":\"https:\\\/\\\/www.voltwork.fr\\\/en\\\/nf-c18-510-standard\\\/electrical-distances-and-zones\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.voltwork.fr\\\/en\\\/nf-c18-510-standard\\\/electrical-distances-and-zones\\\/\"},\"author\":{\"name\":\"Quentin Nicolas\",\"@id\":\"https:\\\/\\\/www.voltwork.fr\\\/en\\\/#\\\/schema\\\/person\\\/5ac1ae8df8f35e3b974908332ea19ee2\"},\"headline\":\"Electrical Authorization: Distances and Zones [2026]\",\"datePublished\":\"2023-10-06T10:06:11+00:00\",\"dateModified\":\"2026-03-23T08:21:35+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/www.voltwork.fr\\\/en\\\/nf-c18-510-standard\\\/electrical-distances-and-zones\\\/\"},\"wordCount\":900,\"publisher\":{\"@id\":\"https:\\\/\\\/www.voltwork.fr\\\/en\\\/#organization\"},\"image\":{\"@id\":\"https:\\\/\\\/www.voltwork.fr\\\/en\\\/nf-c18-510-standard\\\/electrical-distances-and-zones\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/www.voltwork.fr\\\/wp-content\\\/uploads\\\/2023\\\/10\\\/image-mise-en-avant-distances-et-zones.jpg\",\"articleSection\":[\"Electrical Authorization Guides\",\"NF C18-510 Standard\"],\"inLanguage\":\"en-US\"},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/www.voltwork.fr\\\/en\\\/nf-c18-510-standard\\\/electrical-distances-and-zones\\\/\",\"url\":\"https:\\\/\\\/www.voltwork.fr\\\/en\\\/nf-c18-510-standard\\\/electrical-distances-and-zones\\\/\",\"name\":\"Electrical Authorization: Distances and Zones [2026]\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.voltwork.fr\\\/en\\\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\\\/\\\/www.voltwork.fr\\\/en\\\/nf-c18-510-standard\\\/electrical-distances-and-zones\\\/#primaryimage\"},\"image\":{\"@id\":\"https:\\\/\\\/www.voltwork.fr\\\/en\\\/nf-c18-510-standard\\\/electrical-distances-and-zones\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/www.voltwork.fr\\\/wp-content\\\/uploads\\\/2023\\\/10\\\/image-mise-en-avant-distances-et-zones.jpg\",\"datePublished\":\"2023-10-06T10:06:11+00:00\",\"dateModified\":\"2026-03-23T08:21:35+00:00\",\"description\":\"Understand approach distances (DLI, DLVS, DLVR, DMA) and electrical environment zones defined by NF C18-510.\",\"breadcrumb\":{\"@id\":\"https:\\\/\\\/www.voltwork.fr\\\/en\\\/nf-c18-510-standard\\\/electrical-distances-and-zones\\\/#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\\\/\\\/www.voltwork.fr\\\/en\\\/nf-c18-510-standard\\\/electrical-distances-and-zones\\\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\\\/\\\/www.voltwork.fr\\\/en\\\/nf-c18-510-standard\\\/electrical-distances-and-zones\\\/#primaryimage\",\"url\":\"https:\\\/\\\/www.voltwork.fr\\\/wp-content\\\/uploads\\\/2023\\\/10\\\/image-mise-en-avant-distances-et-zones.jpg\",\"contentUrl\":\"https:\\\/\\\/www.voltwork.fr\\\/wp-content\\\/uploads\\\/2023\\\/10\\\/image-mise-en-avant-distances-et-zones.jpg\",\"width\":353,\"height\":250},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/www.voltwork.fr\\\/en\\\/nf-c18-510-standard\\\/electrical-distances-and-zones\\\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Accueil\",\"item\":\"https:\\\/\\\/www.voltwork.fr\\\/en\\\/electrical-risk-prevention-training\\\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Electrical Authorization: Distances and Zones [2026]\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\\\/\\\/www.voltwork.fr\\\/en\\\/#website\",\"url\":\"https:\\\/\\\/www.voltwork.fr\\\/en\\\/\",\"name\":\"VoltWork\",\"description\":\"L&#039;expert de la formation Habilitation \u00e9lectrique\",\"publisher\":{\"@id\":\"https:\\\/\\\/www.voltwork.fr\\\/en\\\/#organization\"},\"alternateName\":\"Voltwork\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\\\/\\\/www.voltwork.fr\\\/en\\\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"en-US\"},{\"@type\":\"Organization\",\"@id\":\"https:\\\/\\\/www.voltwork.fr\\\/en\\\/#organization\",\"name\":\"VoltWork\",\"url\":\"https:\\\/\\\/www.voltwork.fr\\\/en\\\/\",\"logo\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\\\/\\\/www.voltwork.fr\\\/en\\\/#\\\/schema\\\/logo\\\/image\\\/\",\"url\":\"https:\\\/\\\/www.voltwork.fr\\\/wp-content\\\/uploads\\\/2023\\\/04\\\/cropped-VW_logo_jaune_navy.png\",\"contentUrl\":\"https:\\\/\\\/www.voltwork.fr\\\/wp-content\\\/uploads\\\/2023\\\/04\\\/cropped-VW_logo_jaune_navy.png\",\"width\":422,\"height\":75,\"caption\":\"VoltWork\"},\"image\":{\"@id\":\"https:\\\/\\\/www.voltwork.fr\\\/en\\\/#\\\/schema\\\/logo\\\/image\\\/\"}},{\"@type\":\"Person\",\"@id\":\"https:\\\/\\\/www.voltwork.fr\\\/en\\\/#\\\/schema\\\/person\\\/5ac1ae8df8f35e3b974908332ea19ee2\",\"name\":\"Quentin Nicolas\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\\\/\\\/secure.gravatar.com\\\/avatar\\\/867a0cc10888ebe6385f81b45934c3646b73ebf356febf8a396f5593ccc89673?s=96&d=mm&r=g\",\"url\":\"https:\\\/\\\/secure.gravatar.com\\\/avatar\\\/867a0cc10888ebe6385f81b45934c3646b73ebf356febf8a396f5593ccc89673?s=96&d=mm&r=g\",\"contentUrl\":\"https:\\\/\\\/secure.gravatar.com\\\/avatar\\\/867a0cc10888ebe6385f81b45934c3646b73ebf356febf8a396f5593ccc89673?s=96&d=mm&r=g\",\"caption\":\"Quentin Nicolas\"}}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"Electrical Authorization: Distances and Zones [2026]","description":"Understand approach distances (DLI, DLVS, DLVR, DMA) and electrical environment zones defined by NF C18-510.","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:\/\/www.voltwork.fr\/en\/nf-c18-510-standard\/electrical-distances-and-zones\/","og_locale":"en_US","og_type":"article","og_title":"Electrical Authorization: Distances and Zones [2026]","og_description":"Understand approach distances (DLI, DLVS, DLVR, DMA) and electrical environment zones defined by NF C18-510.","og_url":"https:\/\/www.voltwork.fr\/en\/nf-c18-510-standard\/electrical-distances-and-zones\/","og_site_name":"VoltWork","article_published_time":"2023-10-06T10:06:11+00:00","article_modified_time":"2026-03-23T08:21:35+00:00","og_image":[{"width":353,"height":250,"url":"https:\/\/www.voltwork.fr\/wp-content\/uploads\/2023\/10\/image-mise-en-avant-distances-et-zones.jpg","type":"image\/jpeg"}],"author":"Quentin Nicolas","twitter_card":"summary_large_image","twitter_misc":{"Written by":"Quentin Nicolas","Est. reading time":"7 minutes"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":["Article","BlogPosting"],"@id":"https:\/\/www.voltwork.fr\/en\/nf-c18-510-standard\/electrical-distances-and-zones\/#article","isPartOf":{"@id":"https:\/\/www.voltwork.fr\/en\/nf-c18-510-standard\/electrical-distances-and-zones\/"},"author":{"name":"Quentin Nicolas","@id":"https:\/\/www.voltwork.fr\/en\/#\/schema\/person\/5ac1ae8df8f35e3b974908332ea19ee2"},"headline":"Electrical Authorization: Distances and Zones [2026]","datePublished":"2023-10-06T10:06:11+00:00","dateModified":"2026-03-23T08:21:35+00:00","mainEntityOfPage":{"@id":"https:\/\/www.voltwork.fr\/en\/nf-c18-510-standard\/electrical-distances-and-zones\/"},"wordCount":900,"publisher":{"@id":"https:\/\/www.voltwork.fr\/en\/#organization"},"image":{"@id":"https:\/\/www.voltwork.fr\/en\/nf-c18-510-standard\/electrical-distances-and-zones\/#primaryimage"},"thumbnailUrl":"https:\/\/www.voltwork.fr\/wp-content\/uploads\/2023\/10\/image-mise-en-avant-distances-et-zones.jpg","articleSection":["Electrical Authorization Guides","NF C18-510 Standard"],"inLanguage":"en-US"},{"@type":"WebPage","@id":"https:\/\/www.voltwork.fr\/en\/nf-c18-510-standard\/electrical-distances-and-zones\/","url":"https:\/\/www.voltwork.fr\/en\/nf-c18-510-standard\/electrical-distances-and-zones\/","name":"Electrical Authorization: Distances and Zones [2026]","isPartOf":{"@id":"https:\/\/www.voltwork.fr\/en\/#website"},"primaryImageOfPage":{"@id":"https:\/\/www.voltwork.fr\/en\/nf-c18-510-standard\/electrical-distances-and-zones\/#primaryimage"},"image":{"@id":"https:\/\/www.voltwork.fr\/en\/nf-c18-510-standard\/electrical-distances-and-zones\/#primaryimage"},"thumbnailUrl":"https:\/\/www.voltwork.fr\/wp-content\/uploads\/2023\/10\/image-mise-en-avant-distances-et-zones.jpg","datePublished":"2023-10-06T10:06:11+00:00","dateModified":"2026-03-23T08:21:35+00:00","description":"Understand approach distances (DLI, DLVS, DLVR, DMA) and electrical environment zones defined by NF C18-510.","breadcrumb":{"@id":"https:\/\/www.voltwork.fr\/en\/nf-c18-510-standard\/electrical-distances-and-zones\/#breadcrumb"},"inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["https:\/\/www.voltwork.fr\/en\/nf-c18-510-standard\/electrical-distances-and-zones\/"]}]},{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/www.voltwork.fr\/en\/nf-c18-510-standard\/electrical-distances-and-zones\/#primaryimage","url":"https:\/\/www.voltwork.fr\/wp-content\/uploads\/2023\/10\/image-mise-en-avant-distances-et-zones.jpg","contentUrl":"https:\/\/www.voltwork.fr\/wp-content\/uploads\/2023\/10\/image-mise-en-avant-distances-et-zones.jpg","width":353,"height":250},{"@type":"BreadcrumbList","@id":"https:\/\/www.voltwork.fr\/en\/nf-c18-510-standard\/electrical-distances-and-zones\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Accueil","item":"https:\/\/www.voltwork.fr\/en\/electrical-risk-prevention-training\/"},{"@type":"ListItem","position":2,"name":"Electrical Authorization: Distances and Zones [2026]"}]},{"@type":"WebSite","@id":"https:\/\/www.voltwork.fr\/en\/#website","url":"https:\/\/www.voltwork.fr\/en\/","name":"VoltWork","description":"L&#039;expert de la formation Habilitation \u00e9lectrique","publisher":{"@id":"https:\/\/www.voltwork.fr\/en\/#organization"},"alternateName":"Voltwork","potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/www.voltwork.fr\/en\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"en-US"},{"@type":"Organization","@id":"https:\/\/www.voltwork.fr\/en\/#organization","name":"VoltWork","url":"https:\/\/www.voltwork.fr\/en\/","logo":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/www.voltwork.fr\/en\/#\/schema\/logo\/image\/","url":"https:\/\/www.voltwork.fr\/wp-content\/uploads\/2023\/04\/cropped-VW_logo_jaune_navy.png","contentUrl":"https:\/\/www.voltwork.fr\/wp-content\/uploads\/2023\/04\/cropped-VW_logo_jaune_navy.png","width":422,"height":75,"caption":"VoltWork"},"image":{"@id":"https:\/\/www.voltwork.fr\/en\/#\/schema\/logo\/image\/"}},{"@type":"Person","@id":"https:\/\/www.voltwork.fr\/en\/#\/schema\/person\/5ac1ae8df8f35e3b974908332ea19ee2","name":"Quentin Nicolas","image":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/secure.gravatar.com\/avatar\/867a0cc10888ebe6385f81b45934c3646b73ebf356febf8a396f5593ccc89673?s=96&d=mm&r=g","url":"https:\/\/secure.gravatar.com\/avatar\/867a0cc10888ebe6385f81b45934c3646b73ebf356febf8a396f5593ccc89673?s=96&d=mm&r=g","contentUrl":"https:\/\/secure.gravatar.com\/avatar\/867a0cc10888ebe6385f81b45934c3646b73ebf356febf8a396f5593ccc89673?s=96&d=mm&r=g","caption":"Quentin Nicolas"}}]}},"_links":{"self":[{"href":"https:\/\/www.voltwork.fr\/en\/wp-json\/wp\/v2\/posts\/7579","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.voltwork.fr\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.voltwork.fr\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.voltwork.fr\/en\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.voltwork.fr\/en\/wp-json\/wp\/v2\/comments?post=7579"}],"version-history":[{"count":6,"href":"https:\/\/www.voltwork.fr\/en\/wp-json\/wp\/v2\/posts\/7579\/revisions"}],"predecessor-version":[{"id":7650,"href":"https:\/\/www.voltwork.fr\/en\/wp-json\/wp\/v2\/posts\/7579\/revisions\/7650"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.voltwork.fr\/en\/wp-json\/wp\/v2\/media\/6677"}],"wp:attachment":[{"href":"https:\/\/www.voltwork.fr\/en\/wp-json\/wp\/v2\/media?parent=7579"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.voltwork.fr\/en\/wp-json\/wp\/v2\/categories?post=7579"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.voltwork.fr\/en\/wp-json\/wp\/v2\/tags?post=7579"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}