{"id":4652,"date":"2026-05-30T20:19:08","date_gmt":"2026-05-30T17:19:08","guid":{"rendered":"https:\/\/aesinn.com\/?p=4652"},"modified":"2026-05-30T23:20:09","modified_gmt":"2026-05-30T20:20:09","slug":"topraklama-direnci-kac-ohm-olmali","status":"publish","type":"post","link":"https:\/\/aesinn.com\/en\/topraklama-direnci-kac-ohm-olmali\/","title":{"rendered":"What should the grounding resistance be in Ohms? Limit Values."},"content":{"rendered":"<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\"><p><strong>Short answer:<\/strong> Topraklama direncinin ka\u00e7 ohm olmas\u0131 gerekti\u011fi <strong>tek bir sabit de\u011fer de\u011fildir<\/strong>; sistem tipine (TT, TN), koruma cihaz\u0131na ve tesisat\u0131n amac\u0131na g\u00f6re de\u011fi\u015fir. Genel kabul g\u00f6ren referanslar: y\u0131ld\u0131r\u0131mdan korunma (paratoner) topraklamas\u0131 i\u00e7in <strong>\u2264 10 ohm<\/strong>, ka\u00e7ak ak\u0131m r\u00f6lesi (RCD) ile korunan sistemlerde ise dokunma geriliminin 50 V alt\u0131nda kalmas\u0131n\u0131 sa\u011flayacak de\u011fer.<\/p><\/blockquote>\n\n\n\n<p class=\"wp-block-paragraph\">&#8220;Topraklamam ka\u00e7 ohm olmal\u0131?&#8221; sorusu en \u00e7ok sorulan ama en \u00e7ok yanl\u0131\u015f bilinen konulardan biridir. Tek bir sihirli say\u0131 yoktur; de\u011fer, tesisat\u0131n hangi sistemde oldu\u011funa ve neye kar\u015f\u0131 koruma sa\u011flad\u0131\u011f\u0131na ba\u011fl\u0131d\u0131r.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Sistem ve Amaca G\u00f6re Referans De\u011ferler<\/h2>\n\n\n\n<figure class=\"wp-block-table\"><table><thead><tr><th>Uygulama<\/th><th>Yayg\u0131n hedef de\u011fer<\/th><\/tr><\/thead><tbody><tr><td>Lightning protection (lightning rod)<\/td><td>\u2264 10 ohm<\/td><\/tr><tr><td>RCD&#8217;li sistem (TT)<\/td><td>R<sub>A<\/sub> \u00d7 I\u0394n \u2264 50 V kural\u0131na g\u00f6re<\/td><\/tr><tr><td>\u0130\u015fletme \/ sistem topraklamas\u0131<\/td><td>Y\u00f6netmelik ve tasar\u0131ma g\u00f6re<\/td><\/tr><tr><td>Hassas elektronik \/ veri merkezi<\/td><td>Genellikle \u00e7ok daha d\u00fc\u015f\u00fck (\u2264 1-2 ohm)<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">RCD Kural\u0131: 50 V S\u0131n\u0131r\u0131<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Ka\u00e7ak ak\u0131m r\u00f6lesi (RCD) ile korunan TT sistemlerde temel kural \u015fudur: topraklama direnci (R<sub>A<\/sub>) ile r\u00f6lenin anma ka\u00e7ak ak\u0131m\u0131n\u0131n (I\u0394n) \u00e7arp\u0131m\u0131, izin verilen dokunma geriliminin (genellikle 50 V) alt\u0131nda kalmal\u0131d\u0131r. Yani <strong>R<sub>A<\/sub> \u00d7 I\u0394n \u2264 50 V<\/strong>. Bu, d\u00fc\u015f\u00fck ka\u00e7ak ak\u0131ml\u0131 (\u00f6rn. 30 mA) bir r\u00f6le ile teorik olarak y\u00fcksek dirence izin verse de, pratikte g\u00fcvenlik ve s\u00fcreklilik i\u00e7in \u00e7ok daha d\u00fc\u015f\u00fck de\u011ferler hedeflenir.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Neden Tek Bir De\u011fer Yok?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u00c7\u00fcnk\u00fc topraklaman\u0131n g\u00f6revi sisteme g\u00f6re de\u011fi\u015fir: y\u0131ld\u0131r\u0131m\u0131 bo\u015faltmak, ar\u0131za ak\u0131m\u0131n\u0131 r\u00f6leye ta\u015f\u0131mak veya g\u00fcr\u00fclt\u00fcy\u00fc s\u00fczmek farkl\u0131 gereksinimlerdir. Kesin hedef de\u011fer; <strong>Elektrik Tesislerinde Topraklamalar Y\u00f6netmeli\u011fi<\/strong> ve ilgili standartlar \u00e7er\u00e7evesinde, tesisat\u0131n tasar\u0131m\u0131na g\u00f6re belirlenir. Bu y\u00fczden \u00f6l\u00e7\u00fcm sonucunu do\u011fru yorumlamak, \u00f6l\u00e7mek kadar \u00f6nemlidir.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Frequently Asked Questions<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">\u00d6l\u00e7\u00fcm de\u011ferim y\u00fcksek \u00e7\u0131kt\u0131, ne yapmal\u0131y\u0131m?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Topraklama elektrot say\u0131s\u0131\/derinli\u011fi art\u0131r\u0131labilir, ba\u011flant\u0131lar ve korozyon kontrol edilebilir veya toprak iyile\u015ftirici \u00e7\u00f6z\u00fcmler uygulanabilir; do\u011fru aksiyonu \u00f6l\u00e7\u00fcm ve de\u011ferlendirme belirler.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">For accredited grounding measurements. <a href=\"https:\/\/aesinn.com\/en\/topraklama-sistemleri\/\">Our Grounding Systems Services<\/a> Examine it.<\/p>\n\n\n\n<div class=\"wp-block-buttons is-layout-flex wp-block-buttons-is-layout-flex\"><div class=\"wp-block-button\"><a class=\"wp-block-button__link wp-element-button\" href=\"https:\/\/aesinn.com\/en\/iletisim\/\">Get a free quote \u00bb<\/a><\/div><\/div>","protected":false},"excerpt":{"rendered":"<p>Short answer: The required grounding resistance in ohms is not a single fixed value; it depends on the system type (TT, TN), the protective device, and\u2026<\/p>","protected":false},"author":1,"featured_media":2568,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_kad_blocks_custom_css":"","_kad_blocks_head_custom_js":"","_kad_blocks_body_custom_js":"","_kad_blocks_footer_custom_js":"","_kadence_starter_templates_imported_post":false,"_kad_post_transparent":"","_kad_post_title":"","_kad_post_layout":"","_kad_post_sidebar_id":"","_kad_post_content_style":"","_kad_post_vertical_padding":"","_kad_post_feature":"","_kad_post_feature_position":"","_kad_post_header":false,"_kad_post_footer":false,"_kad_post_classname":"","slim_seo":{"title":"Topraklama Direnci Ka\u00e7 Ohm Olmal\u0131? S\u0131n\u0131r De\u011ferler - AES Innovation","description":"K\u0131sa yan\u0131t: Topraklama direncinin ka\u00e7 ohm olmas\u0131 gerekti\u011fi tek bir sabit de\u011fer de\u011fildir ; sistem tipine (TT, TN), koruma cihaz\u0131na ve tesisat\u0131n amac\u0131na g\u00f6re de\u011fi"},"footnotes":""},"categories":[11],"tags":[],"class_list":["post-4652","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-makaleler"],"acf":[],"taxonomy_info":{"category":[{"value":11,"label":"Makaleler"}]},"featured_image_src_large":["https:\/\/aesinn.com\/wp-content\/uploads\/aes-thumbnail.png",768,768,false],"author_info":{"display_name":"yonetim","author_link":"https:\/\/aesinn.com\/en\/author\/yonetim\/"},"comment_info":"","category_info":[{"term_id":11,"name":"Makaleler","slug":"makaleler","term_group":0,"term_taxonomy_id":11,"taxonomy":"category","description":"","parent":0,"count":33,"filter":"raw","cat_ID":11,"category_count":33,"category_description":"","cat_name":"Makaleler","category_nicename":"makaleler","category_parent":0}],"tag_info":false,"_links":{"self":[{"href":"https:\/\/aesinn.com\/en\/wp-json\/wp\/v2\/posts\/4652","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/aesinn.com\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/aesinn.com\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/aesinn.com\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/aesinn.com\/en\/wp-json\/wp\/v2\/comments?post=4652"}],"version-history":[{"count":1,"href":"https:\/\/aesinn.com\/en\/wp-json\/wp\/v2\/posts\/4652\/revisions"}],"predecessor-version":[{"id":4660,"href":"https:\/\/aesinn.com\/en\/wp-json\/wp\/v2\/posts\/4652\/revisions\/4660"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/aesinn.com\/en\/wp-json\/wp\/v2\/media\/2568"}],"wp:attachment":[{"href":"https:\/\/aesinn.com\/en\/wp-json\/wp\/v2\/media?parent=4652"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/aesinn.com\/en\/wp-json\/wp\/v2\/categories?post=4652"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/aesinn.com\/en\/wp-json\/wp\/v2\/tags?post=4652"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}