{"id":4538,"date":"2026-02-16T16:49:35","date_gmt":"2026-02-16T16:49:35","guid":{"rendered":"https:\/\/www.politubes.com\/?page_id=4538"},"modified":"2026-03-19T12:27:20","modified_gmt":"2026-03-19T12:27:20","slug":"boltshield-protezione-catodica-e-isolamento-galvanico-per-trasformatori","status":"publish","type":"page","link":"https:\/\/www.politubes.com\/it\/applicazioni\/boltshield-protezione-catodica-e-isolamento-galvanico-per-trasformatori\/","title":{"rendered":"Boltshield\u2122 Tubes: protezione catodica e isolamento galvanico per giunzioni bullonate critiche"},"content":{"rendered":"<p><div class=\"fusion-fullwidth fullwidth-box fusion-builder-row-1 hundred-percent-fullwidth non-hundred-percent-height-scrolling fusion-equal-height-columns\" style=\"--awb-border-radius-top-left:0px;--awb-border-radius-top-right:0px;--awb-border-radius-bottom-right:0px;--awb-border-radius-bottom-left:0px;--awb-padding-right:0px;--awb-padding-bottom:0px;--awb-padding-left:0px;--awb-margin-bottom:0px;--awb-flex-wrap:wrap;\" ><div class=\"fusion-builder-row fusion-row\"><div class=\"fusion-layout-column fusion_builder_column fusion-builder-column-0 fusion_builder_column_2_5 2_5 fusion-two-fifth fusion-column-first politubes-applicazioni-titolo\" style=\"--awb-bg-color:#000000;--awb-bg-color-hover:#000000;--awb-bg-size:cover;--awb-margin-bottom:0px;\"><div class=\"fusion-column-wrapper fusion-flex-column-wrapper-legacy\"><div class=\"fusion-column-content-centered\"><div class=\"fusion-column-content\"><div class=\"fusion-title title fusion-title-1 fusion-sep-none fusion-title-text fusion-title-size-two\" style=\"--awb-margin-bottom:0px;--awb-margin-top-small:0px;--awb-margin-right-small:0px;--awb-margin-bottom-small:20px;--awb-margin-left-small:0px;\"><h2 class=\"fusion-title-heading title-heading-left fusion-responsive-typography-calculated\" style=\"margin:0;--fontSize:42;line-height:1.5;\">Boltshield\u2122 Tubes: protezione catodica e isolamento galvanico per giunzioni bullonate critiche<\/h2><\/div><\/div><\/div><div class=\"fusion-clearfix\"><\/div><\/div><\/div><div class=\"fusion-layout-column fusion_builder_column fusion-builder-column-1 fusion_builder_column_3_5 3_5 fusion-three-fifth fusion-column-last\" style=\"--awb-bg-image:url(&#039;https:\/\/www.politubes.com\/wp-content\/uploads\/politubes-botshield-viti.jpg&#039;);--awb-bg-position:right center;--awb-bg-size:cover;--awb-margin-bottom:0px;\" data-scroll-devices=\"small-visibility,medium-visibility,large-visibility\"><div class=\"fusion-column-wrapper fusion-column-has-shadow fusion-flex-column-wrapper-legacy fusion-column-has-bg-image\" data-bg-url=\"https:\/\/www.politubes.com\/wp-content\/uploads\/politubes-botshield-viti.jpg\"><div class=\"fusion-column-content-centered\"><div class=\"fusion-column-content\"><div class=\"fusion-sep-clear\"><\/div><div class=\"fusion-separator fusion-full-width-sep\" style=\"margin-left: auto;margin-right: auto;margin-top:200px;width:100%;\"><\/div><div class=\"fusion-sep-clear\"><\/div><\/div><\/div><div class=\"fusion-clearfix\"><\/div><\/div><\/div><\/div><\/div><div class=\"fusion-fullwidth fullwidth-box fusion-builder-row-2 hundred-percent-fullwidth non-hundred-percent-height-scrolling plt-applicazioni\" style=\"--awb-border-radius-top-left:0px;--awb-border-radius-top-right:0px;--awb-border-radius-bottom-right:0px;--awb-border-radius-bottom-left:0px;--awb-background-color:rgba(255,255,255,0);--awb-flex-wrap:wrap;\" ><div class=\"fusion-builder-row fusion-row\"><div class=\"fusion-layout-column fusion_builder_column fusion-builder-column-2 fusion_builder_column_3_4 3_4 fusion-three-fourth fusion-column-first politubes-applicazioni-testo\" style=\"--awb-bg-color:#efefef;--awb-bg-color-hover:#efefef;--awb-bg-size:cover;--awb-margin-bottom:0px;width:75%;width:calc(75% - ( ( 4% ) * 0.75 ) );margin-right: 4%;\"><div class=\"fusion-column-wrapper fusion-flex-column-wrapper-legacy\"><div class=\"fusion-builder-row fusion-builder-row-inner fusion-row\"><div class=\"fusion-layout-column fusion_builder_column_inner fusion-builder-nested-column-0 fusion_builder_column_inner_1_1 1_1 fusion-one-full fusion-column-first fusion-column-last politubes-applicazioni-testo-contenitore\" style=\"--awb-bg-size:cover;--awb-margin-bottom:0px;\"><div class=\"fusion-column-wrapper fusion-flex-column-wrapper-legacy\"><div class=\"fusion-text fusion-text-1\"><p>Nei trasformatori di potenza e distribuzione, dove tiranti, bulloni e viti mantengono saldamente in posizione nucleo e avvolgimenti, cos\u00ec come nelle flange di condotte e in altre applicazioni critiche (per esempio, viti di fissaggio per binari e scambi ferroviari), \u00e8 fondamentale che gli elementi di serraggio siano correttamente isolati dalle parti in tensione.<br \/>\nQuesto garantisce sicurezza elettrica, previene la corrosione galvanica e assicura l\u2019affidabilit\u00e0 operativa nel lungo periodo. Le prestazioni durature iniziano spesso dai dettagli e da una protezione affidabile.<\/p>\n<p>I BoltShield\u2122 Tubes, realizzati in poliestere Mylar\u00ae A, Nomex\u00ae o in una combinazione Nomex\u00ae\/Mylar\u00ae, offrono una protezione nettamente superiore rispetto alle comuni guaine in silicone. Assicurano un\u2019eccellente protezione catodica, prevengono la corrosione dei bulloni, migliorano le prestazioni del sistema e prolungano in modo significativo la vita utile delle apparecchiature.<\/p>\n<p><b>Perch\u00e9 scegliere i tubi isolanti Politubes?<\/b><\/p>\n<p>Una soluzione sicura, affidabile e ad alte prestazioni, con vantaggi tecnici distintivi:<\/p>\n<ul>\n<li aria-level=\"1\">Eccellente protezione catodica contro la corrosione galvanica<\/li>\n<li aria-level=\"1\">Completamente personalizzabili secondo le specifiche del cliente<\/li>\n<li aria-level=\"1\">Alte prestazioni con tolleranze strette e dimensioni compatte<\/li>\n<li aria-level=\"1\">Serraggio sicuro ed efficace sigillatura ermetica<\/li>\n<li aria-level=\"1\">Rigidit\u00e0 meccanica e stabilit\u00e0 dimensionale<\/li>\n<li aria-level=\"1\">Resistenza termica fino a 180\u00b0C e fino a 200\u00b0C in condizioni estreme<\/li>\n<li aria-level=\"1\">Elevata resistenza chimica a solventi e acidi aggressivi<\/li>\n<li aria-level=\"1\">Lunga durabilit\u00e0 (resistenza allo strappo e alla perforazione)<\/li>\n<li aria-level=\"1\">Resistenza a vibrazioni e sollecitazioni meccaniche ad alta frequenza<\/li>\n<\/ul>\n<p><b>Dimensioni personalizzabili disponibili<\/b><\/p>\n<ul>\n<li aria-level=\"1\">Diametri interni: da 1,8 mm a 64 mm<\/li>\n<li aria-level=\"1\">Spessori: da 0,050 mm a 0,800 mm<\/li>\n<li aria-level=\"1\">Lunghezze: da 8 mm a 6.000 mm<\/li>\n<\/ul>\n<p>Le dimensioni possono essere personalizzate in base alle specifiche del cliente e ai requisiti applicativi.<\/p>\n<p>Il tubo Mylar\u00ae + Nomex\u00ae funge sia da isolante dielettrico sia da isolante termico, proteggendo tiranti e bulloni da scariche, correnti di dispersione e potenziali guasti elettrici.<br \/>\nIl risultato \u00e8 un netto miglioramento dell\u2019affidabilit\u00e0 del trasformatore e della tenuta dell\u2019isolamento nel lungo periodo.<\/p>\n<p><i>Nomex\u00ae e Mylar\u00ae sono marchi registrati DuPont\u2122.<\/i><\/p>\n<\/div><div class=\"fusion-clearfix\"><\/div><\/div><\/div><\/div><div class=\"fusion-builder-row fusion-builder-row-inner fusion-row\"><div class=\"fusion-layout-column fusion_builder_column_inner fusion-builder-nested-column-1 fusion_builder_column_inner_1_1 1_1 fusion-one-full fusion-column-first fusion-column-last\" style=\"--awb-bg-color:#333333;--awb-bg-color-hover:#333333;--awb-bg-size:cover;--awb-margin-bottom:0px;\"><div class=\"fusion-column-wrapper fusion-flex-column-wrapper-legacy\"><div class=\"fusion-text fusion-text-2 politubes-applicazioni-materiali\"><p><span class=\"politubes-materiali\" style=\"color: #fff;\"><strong>MATERIALI:<\/strong><br \/>\n<a href=\"https:\/\/www.politubes.com\/it\/materie-prime\/\">Mylar<\/a> \u2022 <a href=\"https:\/\/www.politubes.com\/it\/materie-prime\/\">Hostaphan<\/a> \u2022 <a href=\"https:\/\/www.politubes.com\/it\/materie-prime\/\">Nomex<\/a><\/span><\/p>\n<\/div><div class=\"fusion-clearfix\"><\/div><\/div><\/div><\/div><div class=\"fusion-clearfix\"><\/div><\/div><\/div><div class=\"fusion-layout-column fusion_builder_column fusion-builder-column-3 fusion_builder_column_1_4 1_4 fusion-one-fourth fusion-column-last politubes-applicazioni-prodotti-correlati\" style=\"--awb-bg-size:cover;width:25%;width:calc(25% - ( ( 4% ) * 0.25 ) );\"><div class=\"fusion-column-wrapper fusion-flex-column-wrapper-legacy\"><div class=\"fusion-title title fusion-title-2 sep-underline sep-solid fusion-title-text fusion-title-size-five\" style=\"--awb-margin-top-small:0px;--awb-margin-right-small:0px;--awb-margin-bottom-small:20px;--awb-margin-left-small:0px;--awb-sep-color:#ededed;\"><h5 class=\"fusion-title-heading title-heading-left fusion-responsive-typography-calculated\" style=\"margin:0;--fontSize:18;--minFontSize:18;line-height:1.5;\">PRODOTTI CORRELATI<\/h5><\/div><ul style=\"--awb-size:16px;--awb-line-height:27.2px;--awb-icon-width:27.2px;--awb-icon-height:27.2px;--awb-icon-margin:11.2px;--awb-content-margin:38.4px;\" class=\"fusion-checklist fusion-checklist-1 fusion-checklist-default type-icons prodotti-correlati\"><li class=\"fusion-li-item\" style=\"\"><span class=\"icon-wrapper circle-no\"><i class=\"fusion-li-icon fa-chevron-right fas\" aria-hidden=\"true\"><\/i><\/span><div class=\"fusion-li-item-content\"><a href=\"https:\/\/www.politubes.com\/it\/tubi-e-cappucci-in-mylar\/\">Tubi spiralati Mylar<\/a><\/div><\/li><li class=\"fusion-li-item\" style=\"\"><span class=\"icon-wrapper circle-no\"><i class=\"fusion-li-icon fa-chevron-right fas\" aria-hidden=\"true\"><\/i><\/span><div class=\"fusion-li-item-content\"><a href=\"https:\/\/www.politubes.com\/it\/tubi-e-cappucci-in-nomex\/\">Tubi spiralati Nomex<\/a><\/div><\/li><\/ul><div class=\"fusion-sep-clear\"><\/div><div class=\"fusion-separator fusion-full-width-sep\" style=\"margin-left: auto;margin-right: auto;margin-top:20px;width:100%;\"><\/div><div class=\"fusion-sep-clear\"><\/div><div class=\"fusion-image-element in-legacy-container\" style=\"--awb-caption-title-font-family:var(--h2_typography-font-family);--awb-caption-title-font-weight:var(--h2_typography-font-weight);--awb-caption-title-font-style:var(--h2_typography-font-style);--awb-caption-title-size:var(--h2_typography-font-size);--awb-caption-title-transform:var(--h2_typography-text-transform);--awb-caption-title-line-height:var(--h2_typography-line-height);--awb-caption-title-letter-spacing:var(--h2_typography-letter-spacing);\"><span class=\" fusion-imageframe imageframe-none imageframe-1 hover-type-none\"><img decoding=\"async\" width=\"600\" height=\"338\" title=\"politubes-covid19-emergency-slides\" src=\"https:\/\/www.politubes.com\/wp-content\/uploads\/politubes-covid19-emergency-slides-600x338.jpg\" alt class=\"img-responsive wp-image-2599\" srcset=\"https:\/\/www.politubes.com\/wp-content\/uploads\/politubes-covid19-emergency-slides-200x113.jpg 200w, https:\/\/www.politubes.com\/wp-content\/uploads\/politubes-covid19-emergency-slides-400x225.jpg 400w, https:\/\/www.politubes.com\/wp-content\/uploads\/politubes-covid19-emergency-slides-600x338.jpg 600w, https:\/\/www.politubes.com\/wp-content\/uploads\/politubes-covid19-emergency-slides-800x450.jpg 800w, https:\/\/www.politubes.com\/wp-content\/uploads\/politubes-covid19-emergency-slides-1200x675.jpg 1200w, https:\/\/www.politubes.com\/wp-content\/uploads\/politubes-covid19-emergency-slides.jpg 1920w\" sizes=\"(max-width: 1025px) 100vw, 400px\" \/><\/span><\/div><div class=\"fusion-clearfix\"><\/div><\/div><\/div><\/div><\/div><\/p>\n","protected":false},"excerpt":{"rendered":"","protected":false},"author":3,"featured_media":4539,"parent":2876,"menu_order":8,"comment_status":"closed","ping_status":"closed","template":"100-width.php","meta":{"footnotes":""},"class_list":["post-4538","page","type-page","status-publish","has-post-thumbnail","hentry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.2 - 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