{"id":1766,"date":"2024-11-28T23:56:31","date_gmt":"2024-11-28T22:56:31","guid":{"rendered":"http:\/\/ax-metals.local\/branze\/elektroinstalacyjna\/"},"modified":"2026-03-18T11:13:12","modified_gmt":"2026-03-18T10:13:12","slug":"electrical-installation","status":"publish","type":"branze","link":"https:\/\/www.ax-metals.com\/en\/industries\/electrical-installation\/","title":{"rendered":"Electrical installation"},"content":{"rendered":"\n<section class=\"single-branze--content section\">\n<div class=\"single-branze--content__inner-container inner-container is-root-container\">\n<style>\n  .ax-article,\n  .ax-article * { color:#22497d; }\n\n  .ax-article { font-size:16px; line-height:1.42; }\n\n  .ax-article h1 {\n    font-size:32px;\n    line-height:1.15;\n    margin:0 0 12px 0;\n    font-weight:700;\n  }\n\n  .ax-article h2 {\n    font-size:24px;\n    line-height:1.2;\n    margin:20px 0 8px 0;\n    font-weight:700;\n    scroll-margin-top:76px;\n  }\n\n  .ax-article p { margin:0 0 4px 0; }\n\n  .ax-article a.ax-link {\n    color:#22497d;\n    text-decoration:underline;\n  }\n\n  .ax-article ul {\n    margin:0 0 10px 1.25rem;\n    list-style:disc;\n  }\n\n  .ax-toc {\n    border:1px solid #22497d;\n    border-radius:10px;\n    padding:12px 16px;\n    margin:0 0 20px 0;\n  }\n  .ax-toc strong {\n    display: block;\n    margin-bottom: 8px;\n    font-weight: 700;\n  }\n\n  .ax-toc ul {\n    margin: 0;\n    padding-left: 1.2rem;\n    list-style: disc;\n  }\n\n  .ax-toc li {\n    margin: 4px 0;\n  }\n\n  .ax-toc a {\n    color: #22497d;\n    text-decoration: underline;\n    font-size: 15px;\n  }\n\n  .ax-article details {\n    border:1px solid #22497d;\n    border-radius:10px;\n    padding:10px 12px;\n    margin:8px 0;\n  }\n\n  .ax-article summary {\n    cursor: pointer;\n    font-weight: 700;\n    list-style: none;\n  }\n\n  .ax-article summary::-webkit-details-marker {\n    display: none;\n  }\n\n  .ax-article summary::before {\n    content: \"\u25b8 \";\n    font-weight: 700;\n  }\n\n  .ax-article details[open] summary::before {\n    content: \"\u25be \";\n  }\n\n  .ax-article details p {\n    margin: 10px 0 0 0;\n  }\n\n  .ax-article .note {\n    border-left:4px solid #22497d;\n    padding-left:12px;\n    margin-top:14px;\n  }\n<\/style>\n\n<div class=\"ax-article\">\n\n<div class=\"ax-toc\">\n<strong>Contents<\/strong>\n<ul>\n<li><a href=\"#importance\">Importance of electrical contacts in installation technology<\/a><\/li>\n<li><a href=\"#requirements\">Technical requirements for contact materials and components<\/a><\/li>\n<li><a href=\"#components\">Typical components and contact solutions<\/a><\/li>\n<li><a href=\"#manufacturing\">Manufacturing and integration aspects<\/a><\/li>\n<li><a href=\"#switches\">Electrical contacts in light switches<\/a><\/li>\n<li><a href=\"#standards\">Standards, safety and compliance<\/a><\/li>\n<li><a href=\"#faq\">FAQ on installation technology<\/a><\/li>\n<\/ul>\n<\/div>\n\n<p>\nInstallation technology forms a central foundation of modern building infrastructure. Electrical installations in residential buildings, commercial properties and public facilities must function reliably over long periods while also meeting high safety requirements. Electrical contact components perform an essential technical role in these systems because they enable power distribution, switching functions and protective mechanisms within installation products.\n<\/p>\n\n<p>\nIn practice, the functional reliability and service life of electrical installation components depend strongly on the interaction between contact material, component geometry and manufacturing quality. Contact points must provide stable electrical connections over many years, often under changing thermal and mechanical loads.\n<\/p>\n\n<h2 id=\"importance\">Importance of electrical contacts in installation technology<\/h2>\n\n<p>\nElectrical contacts fulfil different tasks in building technology. They are used both for the safe switching of circuits and for the low-loss transmission of electrical energy. Typical applications are found in switch and socket ranges, distribution systems and protective and switching devices.\n<\/p>\n\n<ul>\n<li>installation switches and socket outlets<\/li>\n<li>terminal and plug-in systems such as terminal blocks or connectors<\/li>\n<li>miniature circuit breakers, RCD devices and load disconnector switches<\/li>\n<li>power distribution systems in buildings and facilities<\/li>\n<\/ul>\n\n<p>\nDepending on the application, contacts must safely withstand both frequent switching cycles and continuous current loads. At the same time, compact designs and economical series production are decisive factors in product development.\n<\/p>\n\n<h2 id=\"requirements\">Technical requirements for contact materials and components<\/h2>\n\n<p>\nContact parts used in installation technology must meet electrical, mechanical and process-related requirements at the same time. Stable conductivity properties and reliable mechanical fixation within the component are particularly important.\n<\/p>\n\n<ul>\n<li>low and consistent contact resistance<\/li>\n<li>high reliability during repeated plugging and switching<\/li>\n<li>resistance to corrosion and oxidation<\/li>\n<li>defined contact forces and mechanical stability<\/li>\n<li>suitable forming and joining properties for automated production<\/li>\n<\/ul>\n\n<p>\nBecause requirements vary depending on the application, contact materials and designs are specifically adapted to the relevant load profile. In practice, an isolated assessment of individual material values is usually not sufficient.\n<\/p>\n\n<p>\nBesides the material itself, counter-contact, contact force, contact area and thermal conditions also play an important role. A robust design therefore always requires a system-based view.\n<\/p>\n\n<h2 id=\"components\">Typical components and contact solutions<\/h2>\n\n<p>\nIn installation technology, contact solutions are often realised as precision-manufactured metal and contact parts. These include, among others,\n<a class=\"ax-link\" href=\"https:\/\/www.ax-metals.com\/en\/products\/contact-profiles\/\">contact profiles<\/a>,\n<a class=\"ax-link\" href=\"https:\/\/www.ax-metals.com\/en\/products\/contact-tips\/\">contact tips<\/a>\nor mechanically fixed\n<a class=\"ax-link\" href=\"https:\/\/www.ax-metals.com\/en\/products\/contact-rivets\/\">contact rivets<\/a>.\n<\/p>\n\n<ul>\n<li>stamped parts and contact springs for socket and switch mechanisms<\/li>\n<li>contact pins or hollow contact parts for plug-in and grounding connections<\/li>\n<li>strip and wire material as starting form for series production<\/li>\n<li>pre-assembled electromechanical contact assemblies<\/li>\n<\/ul>\n\n<p>\nThe selection of a suitable design affects both material usage and the later process stability in assembly. This is especially relevant in installation products that are manufactured in very high volumes and require reproducible quality over long production runs.\n<\/p>\n\n<h2 id=\"manufacturing\">Manufacturing and integration aspects<\/h2>\n\n<p>\nElectrical contact components for installation products are predominantly manufactured in automated series processes. Starting materials are often contact strips or\n<a class=\"ax-link\" href=\"https:\/\/www.ax-metals.com\/en\/products\/contact-wire\/\">contact wires<\/a>,\nwhich are brought into their final geometry by stamping, bending, forming or riveting.\n<\/p>\n\n<p>\nStable process control is essential to ensure reproducible electrical properties. Dimensional deviations, structural changes in the material or insufficient surface quality can influence switching and plug-in behaviour.\n<\/p>\n\n<p>\nIn many applications, contact parts are subsequently integrated into complete\n<a class=\"ax-link\" href=\"https:\/\/www.ax-metals.com\/en\/products\/contact-assemblies\/\">contact assemblies<\/a>,\nwhich are installed as functional units in installation devices.\n<\/p>\n\n<h2 id=\"switches\">Electrical contacts in light switches<\/h2>\n\n<p>\nLight switches are among the most widely used electromechanical components in installation technology. They must function reliably over long periods, although they often have to handle very different switching conditions in actual use. In addition to classic resistive loads, electronic ballasts, LED drivers and capacitive loads increasingly influence contact behaviour.\n<\/p>\n\n<p>\nContact parts in light switches must therefore combine stable electrical conductivity with high mechanical robustness. At the same time, compact designs and economical high-volume production are important development goals.\n<\/p>\n\n<p>\nTypical design solutions include, for example,\n<a class=\"ax-link\" href=\"https:\/\/www.ax-metals.com\/en\/products\/contact-rivets\/\">contact rivets<\/a>\nfor defined switching points or\n<a class=\"ax-link\" href=\"https:\/\/www.ax-metals.com\/en\/products\/contact-profiles\/\">contact profiles<\/a>,\nwhich allow continuous integration of the contact material. Welded\n<a class=\"ax-link\" href=\"https:\/\/www.ax-metals.com\/en\/products\/contact-tips\/\">contact tips<\/a>\nare also used where flexible contact positioning is required.\n<\/p>\n\n<ul>\n<li>high switching reliability under different load types<\/li>\n<li>low wear and arc erosion tendency<\/li>\n<li>stable contact forces despite limited installation space<\/li>\n<li>consistent switching behaviour over service life<\/li>\n<li>process-reliable integration into automated assembly<\/li>\n<\/ul>\n\n<p>\nWith the increasing electrification of buildings, requirements placed on light switches are rising in terms of switching frequency, thermal load and compatibility with modern electronic loads. An application-oriented selection of contact material, design and manufacturing process is therefore decisive for long-term stable performance.\n<\/p>\n\n<h2 id=\"standards\">Standards, safety and compliance<\/h2>\n\n<p>\nInstallation technology is a safety-critical field of electrical engineering. Contact materials and the resulting components must therefore be clearly specified, tested and documented.\n<\/p>\n\n<ul>\n<li>consideration of regulatory requirements such as RoHS and REACH<\/li>\n<li>batch-related traceability<\/li>\n<li>documented inspection and approval processes<\/li>\n<li>compatibility with automated assembly and test procedures<\/li>\n<\/ul>\n\n<p>\nSince normative requirements may vary depending on market and application, a project-specific assessment is required.\n<\/p>\n\n<h2 id=\"faq\">FAQ on installation technology<\/h2>\n\n<details>\n<summary>Which contact materials are used in installation devices?<\/summary>\n<p>Silver alloys and copper-based materials are commonly used. The exact selection depends on current load, switching frequency and environmental conditions.<\/p>\n<\/details>\n\n<details>\n<summary>Why are stable contact forces important?<\/summary>\n<p>Insufficient contact force can lead to increased contact resistance, while excessive force can increase wear. A defined force range is therefore important for stable long-term function.<\/p>\n<\/details>\n\n<details>\n<summary>What role does manufacturing quality play?<\/summary>\n<p>Reproducible manufacturing ensures that electrical properties and service life requirements are met consistently in series production.<\/p>\n<\/details>\n\n<details>\n<summary>Which applications are typical for contact parts in installation technology?<\/summary>\n<p>Typical applications include light switches, socket outlets, protective devices and power distribution systems.<\/p>\n<\/details>\n\n<details>\n<summary>Which data is required for contact design?<\/summary>\n<p>Relevant information includes current load, switching frequency, load type, available installation space and required service life.<\/p>\n<\/details>\n<p><\/p>\n<p class=\"note\">\nFurther technical information can be found in the\n<a class=\"ax-link\" href=\"https:\/\/www.ax-metals.com\/en\/knowledge\/\">knowledge section<\/a>.\nFor technical questions or project-related coordination, please use the\n<a class=\"ax-link\" href=\"https:\/\/www.ax-metals.com\/en\/contact\/\">contact page<\/a>.\n<\/p>\n<p><\/p>\n<\/div>\n<\/div>\n<\/section>\n\n\n\n<section id=\"our-industries\" class=\"section max-w-full our-industries\">\n<div class=\"section__inner-container inner-container is-root-container\">\n<div class=\"our-industries__posts container max-w-wide\">\n<div class=\"posts max-w-wide\" >\n\n\t\n\t\t<div class=\"post-items grid cols-1 sm\/cols-2 md\/cols-3 gap-32\">\n\t\t\t\t\t\t\t\t<article class=\"post-item has-post-thumbnail\">\n\t\t\t\t\t\t<div class=\"post-item__inner-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/www.ax-metals.com\/en\/industries\/electrical-engineering\/\" class=\"post-item__image\" rel=\"bookmark\">\n\t\t\t\t\t\t\t\t\t<img decoding=\"async\" width=\"2100\" height=\"700\" src=\"https:\/\/www.ax-metals.com\/wp-content\/uploads\/2024\/11\/Elektrotechnika-hero.jpg.webp\" class=\"attachment-2400 is-square\" alt=\"\" sizes=\"(max-width: 1200px) 100vw, 1200px\" srcset=\"https:\/\/www.ax-metals.com\/wp-content\/uploads\/2024\/11\/Elektrotechnika-hero.jpg.webp 2100w, https:\/\/www.ax-metals.com\/wp-content\/uploads\/2024\/11\/Elektrotechnika-hero.jpg-300x100.webp 300w, https:\/\/www.ax-metals.com\/wp-content\/uploads\/2024\/11\/Elektrotechnika-hero.jpg-1024x341.webp 1024w, https:\/\/www.ax-metals.com\/wp-content\/uploads\/2024\/11\/Elektrotechnika-hero.jpg-768x256.webp 768w, https:\/\/www.ax-metals.com\/wp-content\/uploads\/2024\/11\/Elektrotechnika-hero.jpg-1536x512.webp 1536w, https:\/\/www.ax-metals.com\/wp-content\/uploads\/2024\/11\/Elektrotechnika-hero.jpg-2048x683.webp 2048w\" \/>\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t<div class=\"post-item__content\">\n\t\t\t\t\t\t\t\t<div class=\"post-item__content__group\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\n\t\t\t\t\t\t\t\t<h3 class=\"post-item__title\">\n\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/www.ax-metals.com\/en\/industries\/electrical-engineering\/\" rel=\"bookmark\">Electrical engineering<\/a>\n\t\t\t\t\t\t\t\t<\/h3>\n\n\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"post-item__excerpt\">\n\t\t\t\t\t\t\t\t\t\t<p>In electrical engineering, the quality of contact materials determines operational efficiency and safety. Our solutions ensure reliable current transmission for complex circuits, industrial systems and modern automation technology.<\/p>\n\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/www.ax-metals.com\/en\/industries\/electrical-engineering\/\" class=\"post-item__link\" rel=\"bookmark\">Read more<\/a>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\n\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/article>\n\t\t\t\t\t\t\t\t\t<article class=\"post-item has-post-thumbnail\">\n\t\t\t\t\t\t<div class=\"post-item__inner-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/www.ax-metals.com\/en\/industries\/electrical-installation\/\" class=\"post-item__image\" rel=\"bookmark\">\n\t\t\t\t\t\t\t\t\t<img decoding=\"async\" width=\"2100\" height=\"700\" src=\"https:\/\/www.ax-metals.com\/wp-content\/uploads\/2024\/11\/Elektrotechnika-hero.jpg.webp\" class=\"attachment-2400 is-square\" alt=\"\" sizes=\"(max-width: 1200px) 100vw, 1200px\" srcset=\"https:\/\/www.ax-metals.com\/wp-content\/uploads\/2024\/11\/Elektrotechnika-hero.jpg.webp 2100w, https:\/\/www.ax-metals.com\/wp-content\/uploads\/2024\/11\/Elektrotechnika-hero.jpg-300x100.webp 300w, https:\/\/www.ax-metals.com\/wp-content\/uploads\/2024\/11\/Elektrotechnika-hero.jpg-1024x341.webp 1024w, https:\/\/www.ax-metals.com\/wp-content\/uploads\/2024\/11\/Elektrotechnika-hero.jpg-768x256.webp 768w, https:\/\/www.ax-metals.com\/wp-content\/uploads\/2024\/11\/Elektrotechnika-hero.jpg-1536x512.webp 1536w, https:\/\/www.ax-metals.com\/wp-content\/uploads\/2024\/11\/Elektrotechnika-hero.jpg-2048x683.webp 2048w\" \/>\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t<div class=\"post-item__content\">\n\t\t\t\t\t\t\t\t<div class=\"post-item__content__group\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\n\t\t\t\t\t\t\t\t<h3 class=\"post-item__title\">\n\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/www.ax-metals.com\/en\/industries\/electrical-installation\/\" rel=\"bookmark\">Electrical installation<\/a>\n\t\t\t\t\t\t\t\t<\/h3>\n\n\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"post-item__excerpt\">\n\t\t\t\t\t\t\t\t\t\t<p>In the electrical installation industry, electrical contact components ensure reliable power transmission and stable switching performance in switches, sockets and protection devices. Material selection, contact design and consistent series quality are critical for safe and durable electrical installations.<\/p>\n\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/www.ax-metals.com\/en\/industries\/electrical-installation\/\" class=\"post-item__link\" rel=\"bookmark\">Read more<\/a>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\n\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/article>\n\t\t\t\t\t\t\t\t\t<article class=\"post-item has-post-thumbnail\">\n\t\t\t\t\t\t<div class=\"post-item__inner-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/www.ax-metals.com\/en\/industries\/automotive\/\" class=\"post-item__image\" rel=\"bookmark\">\n\t\t\t\t\t\t\t\t\t<img decoding=\"async\" width=\"2100\" height=\"700\" src=\"https:\/\/www.ax-metals.com\/wp-content\/uploads\/2024\/11\/Elektrotechnika-hero.jpg.webp\" class=\"attachment-2400 is-square\" alt=\"\" sizes=\"(max-width: 1200px) 100vw, 1200px\" srcset=\"https:\/\/www.ax-metals.com\/wp-content\/uploads\/2024\/11\/Elektrotechnika-hero.jpg.webp 2100w, https:\/\/www.ax-metals.com\/wp-content\/uploads\/2024\/11\/Elektrotechnika-hero.jpg-300x100.webp 300w, https:\/\/www.ax-metals.com\/wp-content\/uploads\/2024\/11\/Elektrotechnika-hero.jpg-1024x341.webp 1024w, https:\/\/www.ax-metals.com\/wp-content\/uploads\/2024\/11\/Elektrotechnika-hero.jpg-768x256.webp 768w, https:\/\/www.ax-metals.com\/wp-content\/uploads\/2024\/11\/Elektrotechnika-hero.jpg-1536x512.webp 1536w, https:\/\/www.ax-metals.com\/wp-content\/uploads\/2024\/11\/Elektrotechnika-hero.jpg-2048x683.webp 2048w\" \/>\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t<div class=\"post-item__content\">\n\t\t\t\t\t\t\t\t<div class=\"post-item__content__group\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\n\t\t\t\t\t\t\t\t<h3 class=\"post-item__title\">\n\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/www.ax-metals.com\/en\/industries\/automotive\/\" rel=\"bookmark\">Automotive<\/a>\n\t\t\t\t\t\t\t\t<\/h3>\n\n\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"post-item__excerpt\">\n\t\t\t\t\t\t\t\t\t\t<p>The automotive industry places the highest demands on contact components, reliability and traceability, particularly for safety systems, electromobility and automated production processes in the production of modern vehicles.<\/p>\n\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/www.ax-metals.com\/en\/industries\/automotive\/\" class=\"post-item__link\" rel=\"bookmark\">Read more<\/a>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\n\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/article>\n\t\t\t\t\t\t<\/div>\n\n\t\t\n\t\n<\/div><\/div>\n<\/div>\n<\/section>\n","protected":false},"excerpt":{"rendered":"<p>In the electrical installation industry, electrical contact components ensure reliable power transmission and stable switching performance in switches, sockets and protection devices. Material selection, contact design and consistent series quality are critical for safe and durable electrical installations.<\/p>\n","protected":false},"author":2,"featured_media":2400,"menu_order":0,"template":"","format":"standard","meta":{"footnotes":""},"class_list":["post-1766","branze","type-branze","status-publish","format-standard","has-post-thumbnail","hentry"],"post_thumbnail":{"src":"https:\/\/www.ax-metals.com\/wp-content\/uploads\/2024\/11\/Elektrotechnika-hero.jpg.webp","width":2100,"height":700,"caption":""},"author_info":{"display_name":"AX-METALS GmbH","author_link":"https:\/\/www.ax-metals.com\/en\/author\/support\/","avatar":"<img alt='' src='https:\/\/secure.gravatar.com\/avatar\/5aa271690719da0b3adc3cb4d0e5704fdfb7dbf74ef80830639ac60f1c393a8e?s=48&#038;d=mm&#038;r=g' srcset='https:\/\/secure.gravatar.com\/avatar\/5aa271690719da0b3adc3cb4d0e5704fdfb7dbf74ef80830639ac60f1c393a8e?s=96&#038;d=mm&#038;r=g 2x' class='avatar avatar-48 photo' height='48' width='48' decoding='async'\/>"},"post_categories":[[]],"_links":{"self":[{"href":"https:\/\/www.ax-metals.com\/en\/wp-json\/wp\/v2\/branze\/1766","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.ax-metals.com\/en\/wp-json\/wp\/v2\/branze"}],"about":[{"href":"https:\/\/www.ax-metals.com\/en\/wp-json\/wp\/v2\/types\/branze"}],"author":[{"embeddable":true,"href":"https:\/\/www.ax-metals.com\/en\/wp-json\/wp\/v2\/users\/2"}],"version-history":[{"count":0,"href":"https:\/\/www.ax-metals.com\/en\/wp-json\/wp\/v2\/branze\/1766\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.ax-metals.com\/en\/wp-json\/wp\/v2\/media\/2400"}],"wp:attachment":[{"href":"https:\/\/www.ax-metals.com\/en\/wp-json\/wp\/v2\/media?parent=1766"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}