{"id":10757,"date":"2020-02-18T16:27:46","date_gmt":"2020-02-18T23:27:46","guid":{"rendered":"https:\/\/brainfiller.com\/?p=10757"},"modified":"2025-11-21T14:24:51","modified_gmt":"2025-11-21T21:24:51","slug":"case-study-arc-flash-while-switching-normal-operation","status":"publish","type":"post","link":"https:\/\/brainfiller.com\/es\/electrical-safety-codes-and-standards\/case-study-arc-flash-while-switching-normal-operation\/","title":{"rendered":"Estudio de caso: Arco el\u00e9ctrico durante la conmutaci\u00f3n: \u00bffuncionamiento normal?"},"content":{"rendered":"<div data-elementor-type=\"wp-post\" data-elementor-id=\"10757\" class=\"elementor elementor-10757\" data-elementor-post-type=\"post\">\n\t\t\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-abdae13 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"abdae13\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-38c5d31\" data-id=\"38c5d31\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-72700c1 elementor-widget-divider--view-line elementor-widget elementor-widget-divider\" data-id=\"72700c1\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"divider.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-divider\">\n\t\t\t<span class=\"elementor-divider-separator\">\n\t\t\t\t\t\t<\/span>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-50557ff elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"50557ff\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-7ffd4d9e\" data-id=\"7ffd4d9e\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-6e6a9352 elementor-widget elementor-widget-text-editor\" data-id=\"6e6a9352\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><strong>Una pregunta com\u00fan que escucho a menudo en mis cursos de capacitaci\u00f3n sobre estudios de arco el\u00e9ctrico NFPA 70E e IEEE 1584 es:<\/strong><\/p><p style=\"text-align: center;\"><strong><em>\u201c\u00bfEl simple accionamiento de un dispositivo como un interruptor fusible o un disyuntor puede provocar un arco el\u00e9ctrico?\u201d<\/em><\/strong><\/p><p><strong>Respondo a la pregunta con una respuesta muy espec\u00edfica que es:<\/strong><\/p><p style=\"text-align: center;\"><strong><em>\u00a0<\/em><em>&quot;Eso depende.&quot;<\/em><\/strong><\/p><figure id=\"attachment_10758\" aria-describedby=\"caption-attachment-10758\" style=\"width: 381px\" class=\"wp-caption alignleft\"><a href=\"https:\/\/brainfiller.com\/es\/?attachment_id=10758\"><img fetchpriority=\"high\" decoding=\"async\" class=\"wp-image-10758\" src=\"https:\/\/brainfiller.com\/wp-content\/uploads\/2020\/02\/Figure-1-Fuses-782x1024.jpg\" alt=\"\" width=\"381\" height=\"499\" srcset=\"https:\/\/brainfiller.com\/wp-content\/uploads\/2020\/02\/Figure-1-Fuses-782x1024.jpg 782w, https:\/\/brainfiller.com\/wp-content\/uploads\/2020\/02\/Figure-1-Fuses-600x785.jpg 600w, https:\/\/brainfiller.com\/wp-content\/uploads\/2020\/02\/Figure-1-Fuses-229x300.jpg 229w, https:\/\/brainfiller.com\/wp-content\/uploads\/2020\/02\/Figure-1-Fuses-768x1005.jpg 768w, https:\/\/brainfiller.com\/wp-content\/uploads\/2020\/02\/Figure-1-Fuses-610x798.jpg 610w, https:\/\/brainfiller.com\/wp-content\/uploads\/2020\/02\/Figure-1-Fuses.jpg 913w\" sizes=\"(max-width: 381px) 100vw, 381px\" \/><\/a><figcaption id=\"caption-attachment-10758\" class=\"wp-caption-text\">Secuelas de un arco el\u00e9ctrico<\/figcaption><\/figure><p><strong>Aprendiendo de la manera dif\u00edcil<\/strong><\/p><p>Un buen amigo m\u00edo aqu\u00ed en Arizona tiene un cliente que encontr\u00f3 la respuesta de la manera m\u00e1s dif\u00edcil. Un contratista el\u00e9ctrico estaba realizando un trabajo el\u00e9ctrico en sus instalaciones. El trabajo implicaba crear una condici\u00f3n de trabajo el\u00e9ctricamente segura en el tablero de distribuci\u00f3n principal de 277Y\/480 voltios despu\u00e9s de <em>NFPA 70E 120.5 Proceso de establecimiento y verificaci\u00f3n de una condici\u00f3n de trabajo el\u00e9ctricamente segura.<\/em><\/p><p>El cuadro de distribuci\u00f3n de servicio principal conten\u00eda cuatro l\u00edneas principales independientes, tal como lo permite NEC 230.71, com\u00fanmente conocidas como <em>Regla de las seis desconexiones<\/em>Una de las l\u00edneas principales era un interruptor de presi\u00f3n atornillado de 1200 A con fusibles de 1200 A que alimentaba un cuadro de distribuci\u00f3n aguas abajo en otra habitaci\u00f3n. Como lo exige la norma NEC 240.95, tambi\u00e9n se proporcion\u00f3 protecci\u00f3n contra fallas a tierra en la l\u00ednea principal, ya que la desconexi\u00f3n superaba los 1000 A y era un sistema 277Y\/480V con conexi\u00f3n a tierra s\u00f3lida.<\/p><p>El trabajo comenz\u00f3 con la interrupci\u00f3n de la carga abriendo cada uno de los fusibles de desconexi\u00f3n m\u00e1s peque\u00f1os en el cuadro de distribuci\u00f3n aguas abajo. Una vez interrumpida la carga, se abri\u00f3 la l\u00ednea principal de 1200 A junto con las otras tres l\u00edneas principales. Sin embargo, el lado de la l\u00ednea principal en el cuadro de distribuci\u00f3n permaneci\u00f3 energizado y a\u00fan era peligroso.<\/p><p>Para desenergizar completamente el cuadro el\u00e9ctrico, <\/p><\/div><\/div><\/div><\/div><\/div><\/section><\/div> <a href=\"https:\/\/brainfiller.com\/es\/electrical-safety-codes-and-standards\/case-study-arc-flash-while-switching-normal-operation\/#more-10757\" class=\"more-link elementor-more-link\"><span aria-label=\"Continuar leyendo Case Study &#8211; Arc Flash While Switching &#8211; Normal Operation?\">(m\u00e1s&hellip;)<\/span><\/a>","protected":false},"excerpt":{"rendered":"<p>Case Study &#8211; Arc Flash While Switching &#8211; Normal Operation?: A common question that I often hear in my NFPA 70E and IEEE 1584 Arc Flash Studies training courses is: \u201cCan simply operating a device such as a fusible switch or circuit breaker cause an arc flash?\u201d I respond to&#8230;<\/p>","protected":false},"author":2,"featured_media":10758,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"elementor_theme","format":"standard","meta":{"_acf_changed":false,"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"_price":"","_stock":"","_tribe_ticket_header":"","_tribe_default_ticket_provider":"","_tribe_ticket_capacity":"0","_ticket_start_date":"","_ticket_end_date":"","_tribe_ticket_show_description":"","_tribe_ticket_show_not_going":false,"_tribe_ticket_use_global_stock":"","_tribe_ticket_global_stock_level":"","_global_stock_mode":"","_global_stock_cap":"","_tribe_rsvp_for_event":"","_tribe_ticket_going_count":"","_tribe_ticket_not_going_count":"","_tribe_tickets_list":"[]","_tribe_ticket_has_attendee_info_fields":false,"footnotes":"","_tec_slr_enabled":"","_tec_slr_layout":""},"categories":[410,406,404,411,403,412,407,419],"tags":[],"class_list":["post-10757","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-arc-flash-labeling-and-compliance-requirements","category-arc-flash-safety-and-hazard-analysis","category-electrical-power-system-design-and-analysis","category-electrical-risk-assessment-and-hazard-mitigation","category-electrical-safety-codes-and-standards","category-electrical-safety-training-and-culture","category-emerging-electrical-safety-technologies-and-trends","category-nfpa-70e"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Case Study - Arc Flash While Switching - Normal Operation? 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