{"id":20457,"date":"2025-08-27T12:00:05","date_gmt":"2025-08-27T10:00:05","guid":{"rendered":"https:\/\/www.graziadio.it\/?p=20457"},"modified":"2025-12-04T10:53:21","modified_gmt":"2025-12-04T09:53:21","slug":"5-mistakes-to-avoid-when-choosing-a-duct-weir-and-how-to-prevent-them","status":"publish","type":"post","link":"https:\/\/www.graziadio.it\/en\/5-mistakes-to-avoid-when-choosing-a-duct-weir-and-how-to-prevent-them\/","title":{"rendered":"5 mistakes to avoid when choosing a busduct (and how to prevent them)"},"content":{"rendered":"<p><span style=\"font-weight: 400;\">The choice of a busduct<\/span><span style=\"font-weight: 400;\">\u00a0directly influences <em>safety, continuity of service and total cost of ownership (TCO) of a plant.<\/em><\/span><span style=\"font-weight: 400;\"><br \/>\n<\/span><span style=\"font-weight: 400;\"> A properly sized and certified system reduces unplanned shutdowns, simplifies future expansions, and maintains stable power distribution under all operating conditions.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">In this article we look at the <strong>5<\/strong> most common <strong>mistakes<\/strong> people make when <strong>selecting and designing a busbar<\/strong>, with practical tips to avoid them and concrete examples of lines <\/span><a href=\"https:\/\/www.graziadio.it\/en\/busbars-range\/\"><b>Graziadio<\/b><\/a><span style=\"font-weight: 400;\"> that make it possible to prevent any critical issues.<\/span><\/p>\n<h2><strong>Why the busbar trunking is the main element of the distribution<\/strong><span style=\"font-weight: 400;\"><br \/>\n<\/span><\/h2>\n<p><span style=\"font-weight: 400;\">In many industrial facilities, manufacturing plants, logistics, data centers, hospitals, and airports, the busbar is the backbone of distribution: it connects switchboards, feeds backbones and process lines, and brings power safely and neatly to where it is needed.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Compared with traditional cables, it offers significant advantages:<\/span><\/p>\n<ul>\n<li><span style=\"font-weight: 400;\">Higher current density<\/span><span style=\"font-weight: 400;\"><br \/>\n<\/span><\/li>\n<li><span style=\"font-weight: 400;\">Neat routes and smaller footprint<\/span><span style=\"font-weight: 400;\"><br \/>\n<\/span><\/li>\n<li><span style=\"font-weight: 400;\">Faster installation<\/span><span style=\"font-weight: 400;\"><br \/>\n<\/span><\/li>\n<li><span style=\"font-weight: 400;\">Modularity and possibility of point derivations<\/span><span style=\"font-weight: 400;\"><br \/>\n<\/span><\/li>\n<\/ul>\n<p><span style=\"font-weight: 400;\">Precisely because it is the heart of the system, <strong>errors in selection or sizing can cause overheating, voltage drops, maintenance difficulties, and regulatory noncompliance.<\/strong><\/span><\/p>\n<h2><strong><span style=\"color: #ff0000;\">Error 1 \u2013 Undersize the flow rate<\/span><\/strong><\/h2>\n<h3><strong>Problem<\/strong><\/h3>\n<p><span style=\"font-weight: 400;\">Often the busbar is chosen \u201cflush\u201d on current absorption, neglecting:<\/span><\/p>\n<ul>\n<li><span style=\"font-weight: 400;\">Peak loads due to startups or production cycles<\/span><span style=\"font-weight: 400;\"><br \/>\n<\/span><\/li>\n<li><span style=\"font-weight: 400;\">Environmental conditions affecting the permissible flow rate<\/span><span style=\"font-weight: 400;\"><br \/>\n<\/span><\/li>\n<li><span style=\"font-weight: 400;\">Growth margin for future expansion<\/span><\/li>\n<\/ul>\n<h3><strong>Risks<\/strong><\/h3>\n<p><span style=\"font-weight: 400;\">Overheating, insulation decay, reduced service life, and nonstandard voltage drops.<\/span><\/p>\n<h3><strong>How to avoid it<\/strong><\/h3>\n<ul>\n<li><span style=\"font-weight: 400;\">Collect realistic load profiles<\/span><span style=\"font-weight: 400;\"><br \/>\n<\/span><\/li>\n<li><span style=\"font-weight: 400;\">Apply correct environmental coefficients<\/span><span style=\"font-weight: 400;\"><br \/>\n<\/span><\/li>\n<li><span style=\"font-weight: 400;\">Consider voltage drop and reserve margin<\/span><span style=\"font-weight: 400;\"><br \/>\n<\/span><\/li>\n<\/ul>\n<h3><strong>Graziadio Solutions<\/strong><\/h3>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><a href=\"https:\/\/www.graziadio.it\/en\/gamma-condotti\/gda-63-2500-a\/\"><span style=\"font-weight: 400;\">GDA\/GDR \u2013 63-2500 A<\/span><\/a><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><a href=\"https:\/\/www.graziadio.it\/en\/gamma-condotti\/k-series-800-5000-a\/\"><span style=\"font-weight: 400;\">K SERIES \u2013 800-5000 A<\/span><\/a><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><a href=\"https:\/\/www.graziadio.it\/en\/gamma-condotti\/isolsbarra-630-6300-a\/\"><span style=\"font-weight: 400;\">ISOLSBARRA \u2013 630-6300 A<\/span><\/a><span style=\"font-weight: 400;\"> e<\/span><a href=\"https:\/\/www.graziadio.it\/en\/gamma-condotti\/isolflex-630-6300-a\/\"> <span style=\"font-weight: 400;\">ISOLFLEX \u2013 630-6300 A<\/span><span style=\"font-weight: 400;\"><br \/>\n<\/span><\/a><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><a href=\"https:\/\/www.graziadio.it\/en\/gamma-condotti\/j-series-63-100-160-a\/\"><span style=\"font-weight: 400;\">J SERIES \u2013 63-160 A<\/span><\/a><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><a href=\"https:\/\/www.graziadio.it\/en\/gamma-condotti\/productor-50-400-a\/\"><span style=\"font-weight: 400;\">PRODUCTOR \u2013 50-400 A<\/span><\/a><\/li>\n<\/ul>\n<h2><span style=\"font-weight: 400;\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-20447\" src=\"https:\/\/www.graziadio.it\/wp-content\/uploads\/2025\/08\/errore-dimensionamento-condotto-sbarra.jpg\" alt=\"\" width=\"1632\" height=\"1224\" srcset=\"https:\/\/www.graziadio.it\/wp-content\/uploads\/2025\/08\/errore-dimensionamento-condotto-sbarra.jpg 1632w, https:\/\/www.graziadio.it\/wp-content\/uploads\/2025\/08\/errore-dimensionamento-condotto-sbarra-768x576.jpg 768w, https:\/\/www.graziadio.it\/wp-content\/uploads\/2025\/08\/errore-dimensionamento-condotto-sbarra-1536x1152.jpg 1536w\" sizes=\"auto, (max-width: 1632px) 100vw, 1632px\" \/><\/span><\/h2>\n<h2><strong><span style=\"color: #ff0000;\">Error 2 \u2013 Ignore the installation environment.<\/span><\/strong><\/h2>\n<h3><strong>Problem<\/strong><\/h3>\n<p><span style=\"font-weight: 400;\">Underestimating IP rating or corrosion resistance can lead to failure and premature degradation.<\/span><\/p>\n<h3><strong>How to avoid it<\/strong><\/h3>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Evaluate humidity, dust, chemicals, washing and temperature<\/span><span style=\"font-weight: 400;\"><br \/>\n<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Choose compatible enclosures and gaskets<\/span><span style=\"font-weight: 400;\"><br \/>\n<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Design paths that avoid water stagnation<\/span><\/li>\n<\/ul>\n<h3><strong>Graziadio Solutions<\/strong><\/h3>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><a href=\"https:\/\/www.graziadio.it\/en\/gamma-condotti\/isolsbarra-630-6300-a\/\"><span style=\"font-weight: 400;\">ISOLSBARRA<\/span><\/a><span style=\"font-weight: 400;\"> \/<\/span><a href=\"https:\/\/www.graziadio.it\/en\/gamma-condotti\/isolflex-630-6300-a\/\"> <span style=\"font-weight: 400;\">ISOLFLEX<\/span><\/a><\/li>\n<li><a href=\"https:\/\/www.graziadio.it\/en\/gamma-condotti\/gda-63-2500-a\/\"><span style=\"font-weight: 400;\">GDA\/GDR<\/span><\/a><\/li>\n<li><a href=\"https:\/\/www.graziadio.it\/en\/gamma-condotti\/multiconductor-50-300-a\/\">MULTICONDUCTOR \u2013 50-300 A<\/a><\/li>\n<\/ul>\n<h2><strong><span style=\"color: #ff0000;\">Error 3 \u2013 Neglecting short-circuit tightness<\/span><\/strong><\/h2>\n<h3><strong>Problem<\/strong><\/h3>\n<p><span style=\"font-weight: 400;\">A busbar may be suitable for the rated current but not sufficiently certified to withstand the stresses of a short circuit.<\/span><\/p>\n<h3><strong>How to avoid it<\/strong><\/h3>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Know the assumed short-circuit current and tripping time of protections<\/span><span style=\"font-weight: 400;\"><br \/>\n<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Choose busbar with appropriate type tests for required Icw\/Ipk<\/span><span style=\"font-weight: 400;\"><br \/>\n<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Check for proper tightening and grounding<\/span><\/li>\n<\/ul>\n<h3><strong>Graziadio Solutions<\/strong><\/h3>\n<ul>\n<li style=\"list-style-type: none;\">\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><a href=\"https:\/\/www.graziadio.it\/en\/gamma-condotti\/k-series-800-5000-a\/\"><span style=\"font-weight: 400;\">K SERIES<\/span><\/a><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><a href=\"https:\/\/www.graziadio.it\/en\/gamma-condotti\/gda-63-2500-a\/\"><span style=\"font-weight: 400;\">GDA\/GDR<\/span><\/a><\/li>\n<li aria-level=\"1\"><a href=\"https:\/\/www.graziadio.it\/en\/gamma-condotti\/isolsbarra-630-6300-a\/\"><span style=\"font-weight: 400;\">ISOLSBARRA<\/span><\/a><\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h2><span style=\"font-weight: 400;\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-20449 size-full\" src=\"https:\/\/www.graziadio.it\/wp-content\/uploads\/2025\/08\/protezione-ip-condotto-sbarra-ambiente-gravoso-scaled-e1755016684937.jpg\" alt=\"\" width=\"1910\" height=\"2040\" srcset=\"https:\/\/www.graziadio.it\/wp-content\/uploads\/2025\/08\/protezione-ip-condotto-sbarra-ambiente-gravoso-scaled-e1755016684937.jpg 1910w, https:\/\/www.graziadio.it\/wp-content\/uploads\/2025\/08\/protezione-ip-condotto-sbarra-ambiente-gravoso-scaled-e1755016684937-768x820.jpg 768w, https:\/\/www.graziadio.it\/wp-content\/uploads\/2025\/08\/protezione-ip-condotto-sbarra-ambiente-gravoso-scaled-e1755016684937-1438x1536.jpg 1438w\" sizes=\"auto, (max-width: 1910px) 100vw, 1910px\" \/><\/span><\/h2>\n<h2><strong><span style=\"color: #ff0000;\">Mistake 4 \u2013 Not designing for flexibility<\/span><\/strong><\/h2>\n<h3><strong>Problem<\/strong><\/h3>\n<p><span style=\"font-weight: 400;\">\u201cClosed\u201d systems without provision for shunts or extensions force complex and costly interventions.<\/span><\/p>\n<h3><strong>How to avoid it<\/strong><\/h3>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Provide for strategic branch points<\/span><span style=\"font-weight: 400;\"><br \/>\n<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Planning extra flow in critical sections<\/span><span style=\"font-weight: 400;\"><br \/>\n<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Use modular systems<\/span><\/li>\n<\/ul>\n<h3><strong>Graziadio Solutions<\/strong><\/h3>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><a href=\"https:\/\/www.graziadio.it\/en\/gamma-condotti\/gls-25-40-63-a\/\">GLS<\/a><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><a href=\"https:\/\/www.graziadio.it\/en\/gamma-condotti\/multiconductor-50-300-a\/\"><span style=\"font-weight: 400;\">MULTICONDUCTOR \u2013 50-300 A<\/span><\/a><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><a href=\"https:\/\/www.graziadio.it\/en\/gamma-condotti\/gda-63-2500-a\/\"><span style=\"font-weight: 400;\">GDA\/GDR<\/span><\/a><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><a href=\"https:\/\/www.graziadio.it\/en\/gamma-condotti\/j-series-63-100-160-a\/\">J SERIES<\/a><\/li>\n<\/ul>\n<h2><strong><span style=\"color: #ff0000;\">Mistake 5 \u2013 Saving on quality and certification<\/span><\/strong><\/h2>\n<h3><strong>Problem<\/strong><\/h3>\n<p><span style=\"font-weight: 400;\">A product that is inexpensive but without proper certifications may have hidden costs and operational risks.<\/span><\/p>\n<h3><strong>How to avoid it<\/strong><\/h3>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Verify type testing and documentation<\/span><span style=\"font-weight: 400;\"><br \/>\n<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Check the availability of spare parts<\/span><span style=\"font-weight: 400;\"><br \/>\n<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Rely on qualified technical support<\/span><\/li>\n<\/ul>\n<h3><strong>Graziadio Solutions<\/strong><\/h3>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><a href=\"https:\/\/www.graziadio.it\/en\/gamma-condotti\/gda-63-2500-a\/\"><span style=\"font-weight: 400;\">GDA\/GDR<\/span><\/a><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><a href=\"https:\/\/www.graziadio.it\/en\/gamma-condotti\/k-series-800-5000-a\/\"><span style=\"font-weight: 400;\">K SERIES<\/span><\/a><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><a href=\"https:\/\/www.graziadio.it\/en\/gamma-condotti\/isolsbarra-630-6300-a\/\"><span style=\"font-weight: 400;\">ISOLSBARRA<\/span><\/a><span style=\"font-weight: 400;\"> \/<\/span><a href=\"https:\/\/www.graziadio.it\/en\/gamma-condotti\/isolflex-630-6300-a\/\"> <span style=\"font-weight: 400;\">ISOLFLEX<\/span><\/a><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><a href=\"https:\/\/www.graziadio.it\/en\/gamma-condotti\/gmt-3-6-24kv\/\"><span style=\"font-weight: 400;\">GMT<\/span><\/a><\/li>\n<li><a href=\"https:\/\/www.graziadio.it\/en\/gamma-condotti\/multiconductor-50-300-a\/\"><span style=\"font-weight: 400;\">MULTICONDUCTOR \u2013 50-300 A<\/span><\/a><\/li>\n<li><a href=\"https:\/\/www.graziadio.it\/en\/gamma-condotti\/gls-25-40-63-a\/\">GLS<\/a><\/li>\n<\/ul>\n<h2><strong>Use cases and applications<\/strong><\/h2>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Manufacturing and automation:<\/b><span style=\"font-weight: 400;\"> GLS, MULTICONDUCTOR, GDA, J SERIES<\/span><span style=\"font-weight: 400;\"><br \/>\n<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Logistics and GDO:<\/b><span style=\"font-weight: 400;\"> K SERIES, GDA\/GDR, J SERIES<\/span><span style=\"font-weight: 400;\"><br \/>\n<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Data center:<\/b><span style=\"font-weight: 400;\"> K SERIES, ISOLSBARRA, GDA<\/span><span style=\"font-weight: 400;\"><br \/>\n<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Food industry:<\/b><span style=\"font-weight: 400;\"> ISOLSBARRA, GDA<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\"><b>Civil infrastructure:<\/b> GDA\/GDR, K SERIES, GLS<\/span><\/li>\n<\/ul>\n<h2><strong>Quick checklist<\/strong><\/h2>\n<ol>\n<li><span style=\"font-weight: 400;\">Load profiles and peaks<\/span><\/li>\n<li><span style=\"font-weight: 400;\">Voltage drop<\/span><\/li>\n<li><span style=\"font-weight: 400;\">Laying environment<\/span><\/li>\n<li><span style=\"font-weight: 400;\">Short-circuit tightness<\/span><\/li>\n<li><span style=\"font-weight: 400;\">Modularity and grip points<\/span><\/li>\n<li><span style=\"font-weight: 400;\">Installation and accessories<\/span><\/li>\n<li><span style=\"font-weight: 400;\">Documentation and certifications<\/span><\/li>\n<li><span style=\"font-weight: 400;\">Parts availability and service<\/span><\/li>\n<\/ol>\n<h2><span style=\"font-weight: 400;\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-20443\" src=\"https:\/\/www.graziadio.it\/wp-content\/uploads\/2025\/08\/5-errori-condotto-sbarra-graziadio.png\" alt=\"\" width=\"2546\" height=\"1194\" srcset=\"https:\/\/www.graziadio.it\/wp-content\/uploads\/2025\/08\/5-errori-condotto-sbarra-graziadio.png 2546w, https:\/\/www.graziadio.it\/wp-content\/uploads\/2025\/08\/5-errori-condotto-sbarra-graziadio-768x360.png 768w, https:\/\/www.graziadio.it\/wp-content\/uploads\/2025\/08\/5-errori-condotto-sbarra-graziadio-1536x720.png 1536w, https:\/\/www.graziadio.it\/wp-content\/uploads\/2025\/08\/5-errori-condotto-sbarra-graziadio-2048x960.png 2048w\" sizes=\"auto, (max-width: 2546px) 100vw, 2546px\" \/><\/span><\/h2>\n<h2><span style=\"font-weight: 400;\"><strong>Avoid these 5 mistakes<\/strong> <\/span><\/h2>\n<p><span style=\"font-weight: 400;\">It means having a safe, continuous and sustainable electrical distribution over time.<\/span><span style=\"font-weight: 400;\"><br \/>\n<\/span><span style=\"font-weight: 400;\"> <a href=\"https:\/\/www.graziadio.it\/en\/graziadio-world\/\"> Graziadio<\/a> offers a full range of solutions, from light distribution to high current backbones to medium voltage, with technical support at every stage.<\/span><\/p>\n<p><a href=\"https:\/\/www.graziadio.it\/en\/\"><span style=\"font-weight: 400;\">Discover the entire Graziadio range<\/span><\/a><span style=\"font-weight: 400;\"> and request a consultation for your installation.<\/span><\/p>\n","protected":false},"excerpt":{"rendered":"<p>The choice of a busduct\u00a0directly influences safety, continuity of service and total cost of ownership (TCO) of a plant. A properly sized and certified system reduces unplanned shutdowns, simplifies future expansions, and maintains stable power distribution under all operating conditions. In this article we look at the 5 most common mistakes people make when selecting [&hellip;]<\/p>\n","protected":false},"author":697,"featured_media":20446,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[111],"tags":[1134,1124,1130,1129,1131,1009,1123,1128,1125,1057,1126,1127,1133,1132],"class_list":["post-20457","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog","tag-armored-conduits","tag-bus-duct-choice","tag-bus-duct-maintenance","tag-bus-duct-modularity","tag-bus-duct-sizing","tag-condotto-sbarra-en","tag-ducts-bars","tag-electrical-flow-rate-duct-bar","tag-errors-conducted-bar","tag-graziadio-condotti-sbarra-en","tag-industrial-electrical-distribution","tag-ip-degree-of-protection-bus-duct","tag-power-distribution-systems","tag-short-circuit-bus-duct",""],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.5 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>5 mistakes to avoid when choosing a duct weir<\/title>\n<meta name=\"description\" content=\"Avoid costly mistakes when choosing a conduit bar: learn about the 5 most common mistakes and Graziadio&#039;s solutions for safety and continuity.\" \/>\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.graziadio.it\/en\/5-mistakes-to-avoid-when-choosing-a-duct-weir-and-how-to-prevent-them\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"5 mistakes to avoid when choosing a duct weir\" \/>\n<meta property=\"og:description\" content=\"Avoid costly mistakes when choosing a conduit bar: learn about the 5 most common mistakes and Graziadio&#039;s solutions for safety and continuity.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.graziadio.it\/en\/5-mistakes-to-avoid-when-choosing-a-duct-weir-and-how-to-prevent-them\/\" \/>\n<meta property=\"og:site_name\" content=\"Graziadio &amp; C. 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