{"id":12863,"date":"2021-11-18T14:00:00","date_gmt":"2021-11-18T13:00:00","guid":{"rendered":"https:\/\/rdcomponents.com\/site\/?p=12863"},"modified":"2026-04-21T10:14:46","modified_gmt":"2026-04-21T08:14:46","slug":"12-arco-elettrico-e-termofusible","status":"publish","type":"post","link":"https:\/\/rdcomponents.com\/site\/2021\/11\/18\/12-arco-elettrico-e-termofusible\/","title":{"rendered":"#12 &#8211; Arco elettrico e termofusibile"},"content":{"rendered":"\n<div class=\"wp-block-group\"><div class=\"wp-block-group__inner-container is-layout-flow wp-block-group-is-layout-flow\">\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-8f761849 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:100%\">\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-8f761849 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:100%\">\n<p class=\"wp-block-paragraph\" style=\"font-size:16px;font-style:normal;font-weight:500\">Con l&#8217;articolo di oggi vedremo come il formarsi di un&nbsp;arco&nbsp;elettrico&nbsp;possa essere causato da un\u2019anomalia nell\u2019installazione di un termofusibile e di come di conseguenza possa condizionare il funzionamento dello stesso.<br>Per sintetizzare, il flusso di corrente&nbsp;elettrica&nbsp;presente tra due elettrodi, formato quando l\u2019elettricit\u00e0 salta da un elettrodo all\u2019altro, \u00e8 definito&nbsp;arco&nbsp;elettrico&nbsp;o fotovoltaico. Pu\u00f2 essere causato da una sovratensione, un corto circuito, oppure dal danneggiamento di un materiale isolante posto a protezione di una superficie.<br>Ma perch\u00e9 questo fenomeno dovrebbe interessare i termofusibili?<\/p>\n\n\n\n<p class=\"wp-block-paragraph\" style=\"font-size:16px;font-style:normal;font-weight:500\">Nel nostro articolo \u201c<a href=\"https:\/\/rdcomponents.com\/site\/2021\/11\/04\/10-come-funzionano-i-termofusibili\/\" target=\"_blank\" rel=\"noreferrer noopener\"><strong>Come funzionano i termofusibili<\/strong><\/a>\u201d spiegavo che nel modello&nbsp;<strong><a href=\"https:\/\/rdcomponents.com\/site\/termofusibili\/\" target=\"_blank\" rel=\"noreferrer noopener\">SW1<\/a>&nbsp;<\/strong>\u201cdurante il normale funzionamento la corrente scorre dal reoforo sinistro al contatto mobile e attraverso il corpo metallico del termofusibile arriva al reoforo destro.\u201d&nbsp;<br>Significa che il corpo del termofusibile non \u00e8 isolato ed \u00e8 facilmente verificabile tramite un semplice controllo con un tester.<\/p>\n\n\n\n<div style=\"height:30px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"1024\" src=\"https:\/\/rdcomponents.com\/site\/wp-content\/uploads\/2022\/06\/Arco-elettrico-Dis.1-1024x1024.jpg\" alt=\"Arco elettrico\" class=\"wp-image-12864\" style=\"width:768px;height:768px\" srcset=\"https:\/\/rdcomponents.com\/site\/wp-content\/uploads\/2022\/06\/Arco-elettrico-Dis.1-1024x1024.jpg 1024w, https:\/\/rdcomponents.com\/site\/wp-content\/uploads\/2022\/06\/Arco-elettrico-Dis.1-300x300.jpg 300w, https:\/\/rdcomponents.com\/site\/wp-content\/uploads\/2022\/06\/Arco-elettrico-Dis.1-150x150.jpg 150w, https:\/\/rdcomponents.com\/site\/wp-content\/uploads\/2022\/06\/Arco-elettrico-Dis.1-768x768.jpg 768w, https:\/\/rdcomponents.com\/site\/wp-content\/uploads\/2022\/06\/Arco-elettrico-Dis.1-550x550.jpg 550w, https:\/\/rdcomponents.com\/site\/wp-content\/uploads\/2022\/06\/Arco-elettrico-Dis.1-1125x1125.jpg 1125w, https:\/\/rdcomponents.com\/site\/wp-content\/uploads\/2022\/06\/Arco-elettrico-Dis.1.jpg 1200w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n<\/div>\n\n\n<div style=\"height:30px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h2 class=\"wp-block-heading\">Qualit\u00e0 o prestazioni: qualche esempio pratico<\/h2>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-8f761849 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:100%\">\n<p class=\"wp-block-paragraph\" style=\"font-size:16px;font-style:normal;font-weight:500\">Come mostra la figura possiamo fare tre diverse prove:<\/p>\n\n\n\n<p class=\"wp-block-paragraph\" style=\"font-size:16px;font-style:normal;font-weight:500\"><strong>Con termofusibile funzionante:<\/strong>&nbsp;<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li style=\"font-size:16px\">Reoforo di sinistra (parte con resina) e reoforo di destra: il passaggio \u00e8 OK<\/li>\n\n\n\n<li style=\"font-size:16px\">Reoforo di sinistra e corpo termofusibile: il passaggio \u00e8 OK<\/li>\n\n\n\n<li style=\"font-size:16px\">Corpo del termofusibile e reoforo di destra: il passaggio \u00e8 OK<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\" style=\"font-size:16px;font-style:normal;font-weight:500\"><strong>Con termofusibile intervenuto:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li style=\"font-size:16px\">Reoforo di sinistra (parte con resina) e reoforo di destra: il passaggio \u00e8 KO, non vi \u00e8 continuit\u00e0<\/li>\n\n\n\n<li style=\"font-size:16px\">Reoforo di sinistra e corpo termofusibile: il passaggio \u00e8 KO<\/li>\n\n\n\n<li style=\"font-size:16px\">Corpo del termofusibile e reoforo di destra: il passaggio OK, abbiamo CONTINUIT\u00c0 di corrente<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\" style=\"font-size:16px;font-style:normal;font-weight:500\">Questo \u00e8 un rischio molto alto perch\u00e9 significherebbe che il termofusibile \u00e8 intervenuto, ma in realt\u00e0 continua a lavorare e l\u2019applicazione non ha nessuna protezione. Per ovviare a questo problema i termofusibili vengono sempre protetti con una\u00a0<a href=\"https:\/\/www.rdc-service.it\/it\/product-category\/accessori\/guaine-isolanti\/\" target=\"_blank\" rel=\"noreferrer noopener\"><strong>guaina isolante<\/strong><\/a>, che deve essere scelta in funzione delle sollecitazioni che dovr\u00e0 sopportare durante la fase di lavoro. \u00c8 molto importante che vengano scelti e utilizzati materiali appropriati perch\u00e9 se non sopportassero lo stress di lavoro e si danneggiassero rischieremmo di avere il sopracitato\u00a0arco\u00a0elettrico, e quindi una nuova continuit\u00e0 di lavoro, con tutti i pericoli del caso.<\/p>\n<\/div>\n<\/div>\n\n\n\n<div style=\"height:30px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"1009\" height=\"533\" src=\"https:\/\/rdcomponents.com\/site\/wp-content\/uploads\/2022\/06\/Arco-elettrico-Dis.2.jpg\" alt=\"Arco elettrico\" class=\"wp-image-12865\" style=\"width:505px;height:267px\" srcset=\"https:\/\/rdcomponents.com\/site\/wp-content\/uploads\/2022\/06\/Arco-elettrico-Dis.2.jpg 1009w, https:\/\/rdcomponents.com\/site\/wp-content\/uploads\/2022\/06\/Arco-elettrico-Dis.2-300x158.jpg 300w, https:\/\/rdcomponents.com\/site\/wp-content\/uploads\/2022\/06\/Arco-elettrico-Dis.2-768x406.jpg 768w\" sizes=\"auto, (max-width: 1009px) 100vw, 1009px\" \/><\/figure>\n<\/div>\n\n\n<div style=\"height:50px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p class=\"wp-block-paragraph\" style=\"font-size:15px\">Scarica l\u2019articolo in versione stampabile cliccando qui sotto!<\/p>\n\n\n\n<div class=\"wp-block-file\"><a id=\"wp-block-file--media-a885a2c4-6f5c-400a-834d-8298ec90ef7d\" href=\"https:\/\/rdcomponents.com\/site\/wp-content\/uploads\/2022\/08\/12-Arco-elettrico-e-termofusibile.jpg\" target=\"_blank\" rel=\"noreferrer noopener\">12-Arco-elettrico-e-termofusibile<\/a><a href=\"https:\/\/rdcomponents.com\/site\/wp-content\/uploads\/2022\/08\/12-Arco-elettrico-e-termofusibile.jpg\" class=\"wp-block-file__button wp-element-button\" download aria-describedby=\"wp-block-file--media-a885a2c4-6f5c-400a-834d-8298ec90ef7d\">Download<\/a><\/div>\n\n\n\n<div class=\"wp-block-group\"><div class=\"wp-block-group__inner-container is-layout-flow wp-block-group-is-layout-flow\">\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-8f761849 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:100%\">\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-8f761849 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-vertically-aligned-center is-layout-flow wp-block-column-is-layout-flow\"><\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div><\/div>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div><\/div>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Con l&#8217;articolo di oggi vedremo come il formarsi di un&nbsp;arco&nbsp;elettrico&nbsp;possa essere causato da un\u2019anomalia nell\u2019installazione di un termofusibile e di come di conseguenza possa condizionare il funzionamento dello stesso.Per sintetizzare, il flusso di corrente&nbsp;elettrica&nbsp;presente tra due elettrodi, formato quando l\u2019elettricit\u00e0 salta da un elettrodo all\u2019altro,&#8230;<\/p>\n","protected":false},"author":2,"featured_media":14083,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[239],"tags":[143,140,141,139],"class_list":["post-12863","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-funzionamento-tecnico","tag-arco-elettrico","tag-sung-woo","tag-sw1","tag-termofusibili"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.8 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>#12 - Arco elettrico e termofusibile - R&amp;d Components Srl<\/title>\n<meta name=\"description\" content=\"Qualit\u00e0 e prestazioni: vediamo come questi due concetti, che sembrano sinonimi ma non lo sono, si applicano alla gamma R&amp;D\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" 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