{"id":4037,"date":"2026-09-18T07:51:31","date_gmt":"2026-09-18T07:51:31","guid":{"rendered":"https:\/\/www.irecfer.com\/railway-technical-blog\/"},"modified":"2026-09-18T08:24:47","modified_gmt":"2026-09-18T08:24:47","slug":"railway-technical-blog","status":"publish","type":"page","link":"https:\/\/www.irecfer.com\/en\/railway-technical-blog\/","title":{"rendered":"Railway Technical Blog"},"content":{"rendered":"<p>[et_pb_section fb_built=&#8221;1&#8243; admin_label=&#8221;Header&#8221; _builder_version=&#8221;4.27.8&#8243; _module_preset=&#8221;default&#8221; background_enable_color=&#8221;off&#8221; collapsed=&#8221;on&#8221; global_colors_info=&#8221;{%22gcid-6bb521d5-2649-4d07-a59b-3ce6a3808f81%22:%91%22background_color_gradient_stops%22%93,%22gcid-233cd77b-4711-403e-b130-11d9e5b5d115%22:%91%22background_color_gradient_stops%22%93}&#8221;][et_pb_row column_structure=&#8221;1_3,2_3&#8243; _builder_version=&#8221;4.19.2&#8243; _module_preset=&#8221;default&#8221; custom_padding=&#8221;0px||||false|false&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_column type=&#8221;1_3&#8243; _builder_version=&#8221;4.19.1&#8243; _module_preset=&#8221;default&#8221; custom_padding=&#8221;10%||||false|false&#8221; custom_padding_tablet=&#8221;||||false|false&#8221; custom_padding_phone=&#8221;||||false|false&#8221; custom_padding_last_edited=&#8221;off|desktop&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_text _builder_version=&#8221;4.27.8&#8243; _module_preset=&#8221;29dd1463-831e-4359-95c7-ccea11a90a9a&#8221; header_text_color=&#8221;#00205f&#8221; header_font_size=&#8221;43px&#8221; width=&#8221;100%&#8221; custom_margin=&#8221;|7px||||&#8221; global_colors_info=&#8221;{}&#8221;]<\/p>\n<h1 id=\"tw-target-text\" class=\"tw-data-text tw-text-large tw-ta\" dir=\"ltr\" role=\"text\" data-placeholder=\"Traducci\u00f3n\" data-ved=\"2ahUKEwjE45TEzveWAxV89LsIHVemF5YQ3ewLegQIDxAV\" aria-label=\"Texto traducido: Railway Technical Blog\" tabindex=\"-1\">Railway Technical Blog<\/h1>\n<p>[\/et_pb_text][\/et_pb_column][et_pb_column type=&#8221;2_3&#8243; _builder_version=&#8221;4.19.0&#8243; _module_preset=&#8221;default&#8221; box_shadow_style=&#8221;preset4&#8243; box_shadow_horizontal=&#8221;30vw&#8221; box_shadow_vertical=&#8221;-24vw&#8221; box_shadow_spread=&#8221;20vw&#8221; box_shadow_color=&#8221;gcid-233cd77b-4711-403e-b130-11d9e5b5d115&#8243; box_shadow_horizontal_tablet=&#8221;48vw&#8221; box_shadow_horizontal_phone=&#8221;48vw&#8221; box_shadow_horizontal_last_edited=&#8221;on|tablet&#8221; global_colors_info=&#8221;{%22gcid-233cd77b-4711-403e-b130-11d9e5b5d115%22:%91%22box_shadow_color%22%93}&#8221;][et_pb_text _builder_version=&#8221;4.27.8&#8243; _module_preset=&#8221;default&#8221; custom_padding=&#8221;154px|||||&#8221; global_colors_info=&#8221;{}&#8221;]<\/p>\n<div id=\"tw-container\" class=\"nev7se\" data-cp=\"1\" data-nnttsvi=\"1\" data-sletp=\"false\" data-sm=\"1\" data-ssbp=\"false\" data-sugg-time=\"500\" data-sugg-url=\"https:\/\/clients1.google.com\/complete\/search\" data-uilc=\"es\" data-vil=\",af,af-ZA,am,am-ET,ar-EG,ar-AE,ar-KW,ar-QA,ar,ar-IL,ar-JO,ar-LB,ar-PS,az,az-AZ,bg,bg-BG,bn,bn-BD,bn-IN,ca,ca-es,cs,cs-CZ,de,de-DE,de-CH,de-AT,de-LI,en,en-US,en-CA,en-AU,en-NZ,en-GB,en-IN,en-KE,en-TZ,en-NG,en-GH,en-PH,en-ZA,es,es-ES,es-AR,es-UY,es-419,es-BO,es-CL,es-CR,es-CO,es-DO,es-EC,es-GT,es-HN,es-NI,es-PA,es-PE,es-PR,es-PY,es-SV,es-VE,es-MX,es-US,eu,eu-ES,fi,fi-FI,fr,fr-FR,fr-CH,fr-BE,gl,gl-ES,gu,gu-IN,he,he-IL,iw,iw-IL,hu,hu-HU,hy,hy-AM,id,id-ID,is,is-IS,it,it-IT,it-CH,ja,ja-JP,jv,jv-ID,ka,ka-GE,km,km-KH,kn,kn-IN,ko,ko-KR,la,lo,lo-LA,lv,lv-LV,ml,ml-IN,mr,mr-IN,ms,ms-MY,nl,nl-NL,nb,nb-NO,ne,ne-NP,pl,pl-PL,pt,pt-BR,pt-PT,ro,ro-RO,ru,ru-RU,si-LK,sk,sk-SK,sr,sr-RS,su,su-ID,sv,sv-SE,sw,sw-TZ,sw-KE,ta,ta-IN,ta-SG,ta-LK,ta-MY,te,te-IN,tr,tr-TR,ur,ur-PK,ur-IN,yue,yue-HK,yue-Hant-HK,zh-HK,zh,zh-CN,zh-cmn,zh-cmn-CN,zh-Hans,zh-Hans-CN,zh-cmn-Hans,zh-cmn-Hans-CN,cmn-CN,cmn-Hans,cmn-Hans-CN,zh-TW,zh-Hant-TW,cmn-TW,cmn-Hant-TW,zh-cmn-TW,zh-cmn-Hant-TW,zu,zu-ZA,hi,hi-IN,tl,tl-PH,pa,pa-IN\">\n<div>\n<div>\n<div id=\"tw-ob\" class=\"tw-src-ltr\">\n<div class=\"oSioSc\">\n<div id=\"tw-target\">\n<div id=\"kAz1tf\" class=\"g9WsWb PZPZlf\" data-attrid=\"tw-targetArea\" data-entityname=\"Google Translate\">\n<div id=\"tw-target-text-container\" class=\"tw-ta-container tw-nfl\" tabindex=\"0\" role=\"text\">\n<p id=\"tw-target-text\" class=\"tw-data-text tw-text-large tw-ta\" dir=\"ltr\" tabindex=\"-1\" role=\"text\" data-placeholder=\"Traducci\u00f3n\" data-ved=\"2ahUKEwjE45TEzveWAxV89LsIHVemF5YQ3ewLegQIDxAV\" aria-label=\"Texto traducido: In this space, we share our team's experience with railway projects in Spain, Portugal, the Nordic countries, and Latin America. We explain the workings of catenary components, traction substations, signaling systems, and track infrastructure, adopting a practical approach designed for engineers, site managers, and maintenance supervisors.\"><span class=\"Y2IQFc\" lang=\"en\">In this space, we share our team&#8217;s experience with railway projects in Spain, Portugal, the Nordic countries, and Latin America. We explain the workings of catenary components, traction substations, signaling systems, and track infrastructure, adopting a practical approach designed for engineers, site managers, and maintenance supervisors.<\/span><\/p>\n<\/div>\n<div id=\"tw-target-rmn-container\" class=\"tw-target-rmn tw-ta-container tw-nfl\" tabindex=\"-1\" role=\"text\">\n<pre id=\"tw-target-rmn\" class=\"tw-data-placeholder tw-text-small tw-ta\" dir=\"ltr\" tabindex=\"-1\" role=\"text\" data-placeholder=\"\"><span style=\"font-family: 'Open Sans', Arial, sans-serif;\">[\/et_pb_text][\/et_pb_column][\/et_pb_row][et_pb_row use_custom_gutter=\"on\" gutter_width=\"2\" _builder_version=\"4.19.0\" _module_preset=\"default\" hover_enabled=\"0\" global_colors_info=\"{}\" sticky_enabled=\"0\"][et_pb_column type=\"4_4\" _builder_version=\"4.19.0\" _module_preset=\"default\" hover_enabled=\"0\" global_colors_info=\"{}\" sticky_enabled=\"0\"][et_pb_blog posts_number=\"9\" include_categories=\"136\" show_author=\"off\" show_date=\"off\" show_categories=\"off\" _builder_version=\"4.27.8\" _module_preset=\"b9af8512-be7e-4cbc-b6c4-6f6f99c32ee8\" header_font=\"Michroma|700|||||||\" header_text_color=\"#00205f\" meta_text_color=\"#000000\" read_more_font=\"Michroma|||||||#000000|\" read_more_text_color=\"#000000\" hover_enabled=\"0\" border_color_all=\"#00205f\" locked=\"off\" global_colors_info=\"{%22gcid-9d8d6552-a4b0-4171-847a-f5c0d7177503%22:%91%22body_text_color%22,%22body_text_color%22%93,%22gcid-233cd77b-4711-403e-b130-11d9e5b5d115%22:%91%22pagination_text_color%22,%22pagination_text_color%22%93}\" module_alignment=\"center\" sticky_enabled=\"0\"][\/et_pb_blog][\/et_pb_column][\/et_pb_row][\/et_pb_section]<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Railway Technical Blog In this space, we share our team&#8217;s experience with railway projects in Spain, Portugal, the Nordic countries, and Latin America. We explain the workings of catenary components, traction substations, signaling systems, and track infrastructure, adopting a practical approach designed for engineers, site managers, and maintenance supervisors.<\/p>\n","protected":false},"author":2,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_et_pb_use_builder":"on","_et_pb_old_content":"","_et_gb_content_width":"","footnotes":""},"class_list":["post-4037","page","type-page","status-publish","hentry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.5 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Technical blog on railway installations - IRECFER<\/title>\n<meta name=\"description\" content=\"Technical articles on railway electrification, catenary systems, traction substations, signaling, and civil works.\" \/>\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.irecfer.com\/blog-tecnico-ferroviario\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Technical blog on railway installations - 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