{"id":543,"date":"2026-10-09T10:19:47","date_gmt":"2026-10-09T10:19:47","guid":{"rendered":"https:\/\/tenglinelec.com\/cast-resin-busbar-powers-40t-crane-upgrade\/"},"modified":"2026-10-09T11:50:32","modified_gmt":"2026-10-09T11:50:32","slug":"cast-resin-busbar-powers-40t-crane-upgrade","status":"publish","type":"page","link":"https:\/\/tenglinelec.com\/ru\/news\/cast-resin-busbar-powers-40t-crane-upgrade\/","title":{"rendered":"\u0421\u0438\u0441\u0442\u0435\u043c\u0430 \u0448\u0438\u043d\u043e\u043f\u0440\u043e\u0432\u043e\u0434\u043e\u0432 \u0438\u0437 \u043b\u0438\u0442\u043e\u0439 \u0441\u043c\u043e\u043b\u044b \u043e\u0431\u0435\u0441\u043f\u0435\u0447\u0438\u0432\u0430\u0435\u0442 \u043f\u0438\u0442\u0430\u043d\u0438\u0435 \u043c\u043e\u0434\u0435\u0440\u043d\u0438\u0437\u0438\u0440\u043e\u0432\u0430\u043d\u043d\u043e\u0433\u043e 40-\u0442\u043e\u043d\u043d\u043e\u0433\u043e \u043a\u0440\u0430\u043d\u0430 \u043d\u0430 \u043c\u0435\u0442\u0430\u043b\u043b\u0443\u0440\u0433\u0438\u0447\u0435\u0441\u043a\u043e\u043c \u0437\u0430\u0432\u043e\u0434\u0435"},"content":{"rendered":"<section class=\"tl-phero tl-phero--art\" style=\"background-image:url('https:\/\/tenglinelec.com\/wp-content\/uploads\/2026\/10\/case-busbar-1.jpg')\"><div class=\"tl-phero__mask\"><\/div><div class=\"tl-phero__in\"><p class=\"tl-crumb\"><a href=\"\/\">Home<\/a><span>&raquo;<\/span><a href=\"\/news\/\">News<\/a><span>&raquo;<\/span>Project Case<\/p><span class=\"tl-phero__cat\">Project Case<\/span><h1>Cast-Resin Busbar System Powers 40 t Crane Upgrade at a Steel Mill<\/h1><p class=\"tl-phero__meta\">September 15, 2026 &middot; Tenglin Electric (Shandong) Co., Ltd<\/p><\/div><\/section><article class=\"tl-art reveal\"><p class=\"tl-art__lead\">When a steel mill in northern China needed to modernise the electrification of a 40 t ladle crane, the engineering team chose a 2,500 A cast-resin busbar system instead of replacing the existing cable festoon.<\/p><p>The crane operates continuously in a casting bay where ambient temperature regularly exceeds 60 \u00b0C and radiant heat from the ladle adds a further load. The original festoon system suffered repeated cable failures, each of which stopped the casting sequence and required a manned intervention in a high-temperature area.<\/p><h2>Why cast-resin busbar<\/h2><p>Cast-resin busbar uses a solid epoxy insulation that is cast around the conductors. It has no air gap, so it resists dust and moisture ingress, and the insulation withstands continuous high temperature far better than a flexible cable sheath. The customer selected a 2,500 A bus duct with an IP68 protection class and a low smoke, halogen-free formulation.<\/p><ul><li>Rated current: 2,500 A, four conductors plus PE<\/li><li>Protection: IP68, halogen-free cast resin<\/li><li>Ambient: continuous 60 \u00b0C with short-term radiant peaks<\/li><li>Length: 96 m of straight runs with 6 expansion and 4 angle sections<\/li><\/ul><blockquote><p>The bus duct has no moving parts and no flexible cables to replace in the hot zone, which is exactly what the maintenance department asked for.<\/p><\/blockquote><figure><img decoding=\"async\" src=\"https:\/\/tenglinelec.com\/wp-content\/uploads\/2026\/10\/case-busbar-1.jpg\" alt=\"Cast-Resin Busbar System Powers 40 t Crane Upgrade at a Steel Mill\"><figcaption>Cast-resin busbar run installed along a crane girder at the steel mill.<\/figcaption><\/figure><p>The upgrade was carried out over a planned five-day shutdown. After twelve months in service, the system has recorded no unplanned stoppages related to electrification, and maintenance in the high-temperature zone has been reduced to periodic visual inspection.<\/p><div class=\"tl-art__foot\"><a class=\"tl-btn tl-btn--ghost\" href=\"\/news\/\">&larr; Back to News<\/a><a class=\"tl-btn\" href=\"\/contact-us\/\">Request a Quote &rarr;<\/a><\/div><\/article><div class=\"tl-group tl-news-more\"><div class=\"tl-group__t\"><h2>Related News<\/h2><\/div><div class=\"tl-news-grid\"><a class=\"tl-news-card reveal\" href=\"\/news\/tenglin-doubles-conductor-rail-capacity\/\"><div class=\"tl-news-card__img\"><img decoding=\"async\" src=\"https:\/\/tenglinelec.com\/wp-content\/uploads\/2026\/10\/case-crane-1.jpg\" alt=\"Tenglin Doubles Conductor Rail Capacity with New 12,000 m\u00b2 Workshop\"><span class=\"tl-news-card__cat\">Company News<\/span><\/div><div class=\"tl-news-card__body\"><div class=\"tl-news-card__meta\"><span>September 28, 2026<\/span><span class=\"dot\"><\/span><span>Tenglin Electric<\/span><\/div><h3>Tenglin Doubles Conductor Rail Capacity with New 12,000 m\u00b2 Workshop<\/h3><p>A new workshop in Qingzhou adds four automated extrusion and assembly lines, lifting annual conductor rail capacity and cutting standard lead times to 15\u201320 days.<\/p><span class=\"tl-news-card__more\">Read more <span class=\"arw\">&rsaquo;<\/span><\/span><\/div><\/a><a class=\"tl-news-card reveal\" href=\"\/news\/autumn-2026-trade-fairs\/\"><div class=\"tl-news-card__img\"><img decoding=\"async\" src=\"https:\/\/tenglinelec.com\/wp-content\/uploads\/2026\/10\/case-crane-2.jpg\" alt=\"Meet Tenglin at the Autumn 2026 Industrial Trade Fairs\"><span class=\"tl-news-card__cat\">Events<\/span><\/div><div class=\"tl-news-card__body\"><div class=\"tl-news-card__meta\"><span>July 25, 2026<\/span><span class=\"dot\"><\/span><span>Tenglin Electric<\/span><\/div><h3>Meet Tenglin at the Autumn 2026 Industrial Trade Fairs<\/h3><p>Tenglin will exhibit conductor rail and power busbar systems at three autumn trade fairs, with live demonstrations of seamless rail and cast-resin bus duct.<\/p><span class=\"tl-news-card__more\">Read more <span class=\"arw\">&rsaquo;<\/span><\/span><\/div><\/a><a class=\"tl-news-card reveal\" href=\"\/news\/tenglin-releases-350a-multipole-conductor-rail\/\"><div class=\"tl-news-card__img\"><img decoding=\"async\" src=\"https:\/\/tenglinelec.com\/wp-content\/uploads\/2026\/10\/hero-products.jpg\" alt=\"Tenglin Releases 350 A Multipole Conductor Rail for Heavy-Duty Cranes\"><span class=\"tl-news-card__cat\">Product News<\/span><\/div><div class=\"tl-news-card__body\"><div class=\"tl-news-card__meta\"><span>October 6, 2026<\/span><span class=\"dot\"><\/span><span>Tenglin Electric<\/span><\/div><h3>Tenglin Releases 350 A Multipole Conductor Rail for Heavy-Duty Cranes<\/h3><p>A new six-pole conductor rail rated 350 A extends the multipole series for large gantry cranes, port equipment and automated storage yards, with higher continuous current in the same footprint.<\/p><span class=\"tl-news-card__more\">Read more <span class=\"arw\">&rsaquo;<\/span><\/span><\/div><\/a><\/div><\/div><div class=\"tl-band\"><h2>Need a System Like This?<\/h2><p>We supply conductor rails and power busbar systems for cranes, ports and industrial automation. Send us your parameters and we will prepare a selection and quotation.<\/p><p class=\"tl-btnrow\" style=\"margin:0\"><a class=\"tl-btn tl-btn--gold\" href=\"\/contact-us\/\">Request a Quote &rarr;<\/a><a class=\"tl-btn tl-btn--ghost\" href=\"\/products\/\">Browse Products<\/a><\/p><\/div><div class=\"tl-foot\"><div class=\"tl-foot__grid\"><div><img decoding=\"async\" src=\"https:\/\/tenglinelec.com\/wp-content\/uploads\/2026\/10\/tenglin-logo.png\" alt=\"Tenglin Electric\" style=\"max-width:190px;background:#fff;border-radius:8px;padding:8px;margin-bottom:14px\"><p style=\"margin:0;font-size:14.5px\">Tenglin Electric (Shandong) Co., Ltd is a professional manufacturer of conductor rail and power busbar electrification systems for cranes and industrial automation.<\/p><\/div><div><h4>Products<\/h4><ul><li><a href=\"\/products\/conductor-rails\/\">Conductor Rails<\/a><\/li><li><a href=\"\/products\/conductor-rails\/\">Single-Pole &middot; Multipole &middot; Seamless<\/a><\/li><li><a href=\"\/products\/conductor-rails\/\">Tubular &middot; U-Shaped &middot; Steel-Body<\/a><\/li><li><a href=\"\/products\/power-busbar\/\">Power Busbar &amp; Bus Duct<\/a><\/li><li><a href=\"\/products\/power-busbar\/\">Compact &middot; Air-Insulated &middot; Cast-Resin<\/a><\/li><\/ul><\/div><div><h4>Company<\/h4><ul><li><a href=\"\/about-us\/\">About Us<\/a><\/li><li><a href=\"\/applications\/\">Applications &amp; Cases<\/a><\/li><li><a href=\"\/news\/\">News &amp; Updates<\/a><\/li><li><a href=\"\/technical-support\/\">Technical Support<\/a><\/li><li><a href=\"\/contact-us\/\">Contact Us<\/a><\/li><\/ul><\/div><div><h4>Contact<\/h4><ul><li>Intersection of Zhaode Rd &#038; Rongli St, Economic Development Zone, Qingzhou, Shandong, China<\/li><li>Tel: <a href=\"tel:+8615621626483\">+86 156 2162 6483<\/a><\/li><li>Email: <a href=\"mailto:nancy@tenglinelec.com\">nancy@tenglinelec.com<\/a><\/li><li>Mon&ndash;Sat 08:00&ndash;18:00 (GMT+8)<\/li><\/ul><\/div><\/div><div class=\"brandline\">&copy; 2026 Tenglin Electric (Shandong) Co., Ltd. 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