{"id":5425,"date":"2023-03-21T15:39:43","date_gmt":"2023-03-21T07:39:43","guid":{"rendered":"https:\/\/www.ray-tron.com\/?p=5425"},"modified":"2023-09-01T13:39:30","modified_gmt":"2023-09-01T05:39:30","slug":"ele5332","status":"publish","type":"post","link":"https:\/\/www.ray-tron.com\/nl\/ele5332\/","title":{"rendered":"De rol van afschermingsdraad"},"content":{"rendered":"

Afgeschermde draad bestaat uit normale ge\u00efsoleerde geleiders, omgeven door een standaard geleidende laag met een speciaal beschermend schild. Deze afscherming onderscheidt deze kabels van de veelvoorkomende onafgeschermde varianten.<\/p>\n

De afscherming is om de ge\u00efsoleerde geleider gewikkeld en bestaat doorgaans uit: Gevlochten koperen en soortgelijke metalen draden Helicale kopertape Geleidende polymeer<\/p>\n

Wat is de functie van afgeschermde kabel?<\/p>\n

Afgeschermde kabels verminderen en isoleren de gegevens- en stroomoverdracht van krachtige "elektrische ruis" of elektromagnetische interferentie (EMI) die aanwezig is in industri\u00eble, technische of productieomgevingen. Bovendien kunnen gegevens- en stroomoverdrachten onderhevig zijn aan elektronische interferentie.<\/p>\n

\"\"

Wat is elektromagnetische interferentie (EMI)?<\/p>\n

EMI is de variabele stroom en spanning die vaak in de omgeving voorkomt. Wij denken hierbij aan een veelvoorkomende storing die bijvoorbeeld mobiele telefoons, televisies en AM-radio's verstoort. Het kan natuurlijk, aangeboren of door de mens veroorzaakt zijn.<\/p>\n

Natuurlijk optredende EMI kan worden veroorzaakt door onweer, sneeuwstormen, regendeeltjes en zonnestraling. Natuurlijke EMI levert voor moderne digitale apparatuur minder problemen op dan oudere dataverbindingen en RF-communicatie via schepen, land en lucht.<\/p>\n

Intrinsieke EMI is de elektrische ruis die binnen elektronische apparatuur wordt gegenereerd. De thermische beweging van elektronen die door de weerstand van een circuit stromen, cre\u00ebert 'witte ruis'. Deze ruis wordt vaak geassocieerd met het bekende geluid van radio-ontvangerfrequenties tussen stations.<\/p>\n

Door de mens veroorzaakte EMI wordt veroorzaakt door verschillende categorie\u00ebn elektrische en elektronische apparatuur. Voertuigontstekingen, motoren, zenders, generatoren, elektriciteitsleidingen, mobiele telefoons, soorten verlichting en dergelijke zijn allemaal voorbeelden van door de mens gemaakte apparaten die EMI-daling in stroomvoorzieningssystemen en gegevensverwerkingsapparatuur kunnen veroorzaken.<\/p>","protected":false},"excerpt":{"rendered":"

Afgeschermde kabels bevatten normaal ge\u00efsoleerde geleiders, omgeven door een standaard geleidende laag met een speciale beschermende afscherming. Deze afscherming onderscheidt deze kabels van normale, onafgeschermde varianten [\u2026]<\/p>","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"default","ast-site-content-layout":"","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"default","adv-header-id-meta":"","stick-header-meta":"default","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[19],"tags":[253,236],"class_list":["post-5425","post","type-post","status-publish","format-standard","hentry","category-blog","tag-blog","tag-pingbixian"],"_links":{"self":[{"href":"https:\/\/www.ray-tron.com\/nl\/wp-json\/wp\/v2\/posts\/5425","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.ray-tron.com\/nl\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.ray-tron.com\/nl\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.ray-tron.com\/nl\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.ray-tron.com\/nl\/wp-json\/wp\/v2\/comments?post=5425"}],"version-history":[{"count":0,"href":"https:\/\/www.ray-tron.com\/nl\/wp-json\/wp\/v2\/posts\/5425\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.ray-tron.com\/nl\/wp-json\/wp\/v2\/media?parent=5425"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.ray-tron.com\/nl\/wp-json\/wp\/v2\/categories?post=5425"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.ray-tron.com\/nl\/wp-json\/wp\/v2\/tags?post=5425"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}