{"id":3193,"date":"2023-02-03T07:19:12","date_gmt":"2023-02-03T07:19:12","guid":{"rendered":"https:\/\/3.212.105.250\/?p=3193"},"modified":"2025-01-19T14:36:05","modified_gmt":"2025-01-19T20:36:05","slug":"en-kort-forklaring-av-de-tva-typerna-av-jordningssystem","status":"publish","type":"post","link":"https:\/\/vm6fr4whzn6.c.updraftclone.com\/sv\/2023\/02\/03\/en-kort-forklaring-av-de-tva-typerna-av-jordningssystem\/","title":{"rendered":"En kort f\u00f6rklaring av de tv\u00e5 typerna av jordningssystem"},"content":{"rendered":"<p>\u00c5r 1752 fl\u00f6g den ber\u00f6mde Benjamin Franklin fr\u00e5n Philadelphia en drake med en metallnyckel p\u00e5 genom ett \u00e5skv\u00e4der. Blixten slog ner i nyckeln och visade f\u00f6r f\u00f6rsta g\u00e5ngen elektricitetens r\u00e5a egenskaper f\u00f6r m\u00e4nskliga \u00f6gon - men det \u00e4r inte riktigt s\u00e5 historien g\u00e5r till. M\u00e4nniskan var v\u00e4l medveten om elektricitetens potential att generera kraft l\u00e5ngt f\u00f6re Franklins drakflygning.<\/p>\n<p>Den st\u00f6rsta myten som f\u00f6rknippas med denna amerikanska folklore \u00e4r att Benjamin Franklin h\u00f6ll i en drake som tr\u00e4ffades av blixten och \u00f6verlevde f\u00f6r att ber\u00e4tta historien. I verkligheten skulle ett blixtnedslag som detta ha tillr\u00e4ckligt med ampere och sp\u00e4nning f\u00f6r att d\u00f6da en m\u00e4nniska omedelbart. Elektricitet kommer alltid att hitta den snabbaste v\u00e4gen till marken. I vissa fall \u00e4r den v\u00e4gen m\u00e4nniskokroppen. N\u00e4r detta intr\u00e4ffar kan det orsaka en d\u00f6dlig elektrisk st\u00f6t.<\/p>\n<p>De flesta elektriska system och enheter som \u00e4r anslutna till h\u00f6gsp\u00e4nningsstr\u00f6mmar har elektrisk jordning. Vi vill s\u00e4kerst\u00e4lla att dina elektriska apparater och din infrastruktur \u00e4r ordentligt skyddade. H\u00e4r \u00e4r v\u00e5r anv\u00e4ndbara guide och f\u00f6rklaring av de tv\u00e5 typerna av jordningssystem, hur de fungerar, varf\u00f6r de \u00e4r viktiga och hur man k\u00e4nner igen jordningskomplikationer som jordfel.<\/p>\n<h2>Jordning av krets\/system kontra utrustning<\/h2>\n<p>F\u00f6rst och fr\u00e4mst finns det tv\u00e5 typer av jordningssystem: krets-\/systemjordning och utrustningsjordning. Varje form av jordning skyddar individer och elektriska apparater fr\u00e5n h\u00f6gsp\u00e4nningsrelaterade komplikationer. L\u00e4s vidare f\u00f6r att l\u00e4ra dig skillnaderna mellan de tv\u00e5 varianterna.<\/p>\n<h3>Jordning av elektriska kretsar\/system<\/h3>\n<p>Elektrisk krets\/system <a href='https:\/\/vm6fr4whzn6.c.updraftclone.com\/sv\/2023\/08\/11\/varfor-kommersiella-byggnader-behover-provning-av-jordningssystem\/'>jordning skyddar hela kraftdistributionssystem i hela byggnader<\/a>. Mer specifikt skyddar systemjordning alla <a href='https:\/\/vm6fr4whzn6.c.updraftclone.com\/sv\/2022\/11\/17\/hur-man-beraknar-elektriska-kretsars-belastningskapacitet\/'>kretsar och servicekablar som \u00e4r anslutna till den elektriska<\/a> distributionssystem. Vanliga till\u00e4mpningar i bost\u00e4der f\u00f6r krets-\/systemjordning \u00e4r elektrod- och vattenr\u00f6rsjordning. Jordning med jordring och betonginfattad elektrod \u00e4r reserverade f\u00f6r industriella eller kommersiella byggnader.<\/p>\n<p>Dessa system ansluter en ledare fr\u00e5n kretsen till jorden och skapar ett \u00f6verl\u00e4gset skydd mot h\u00f6gsp\u00e4nningskontakt, blixtnedslag och elbr\u00e4nder. H\u00f6gsp\u00e4nningsstr\u00f6m har betydligt st\u00f6rre ben\u00e4genhet att spridas utan denna extra ledare som ger s\u00e4ker passage f\u00f6r elektriska str\u00f6mmar, vilket hotar individer och elektriska apparater eller utrustning.<\/p>\n<h3>Jordning av elektrisk utrustning<\/h3>\n<p>Medan krets-\/systemjordning skyddar hela distributionssystem, ger jordning av elektrisk utrustning ett lokalt skydd f\u00f6r sj\u00e4lva utrustningen. Jordning av elektrisk utrustning s\u00e4kerst\u00e4ller t.ex. att du inte f\u00e5r en st\u00f6t n\u00e4r du vidr\u00f6r en metallapparat, t.ex. ett kylsk\u00e5p i rostfritt st\u00e5l.<\/p>\n<p>Dessa system fungerar med alla icke str\u00f6mf\u00f6rande ledande material (kabelr\u00e4nnor, kopplingsl\u00e5dor, motorramar eller r\u00f6r). Kretsjordning involverar str\u00f6mf\u00f6rande ledare. Den slutliga funktionen f\u00f6r utrustningsjordning \u00e4r dock densamma som f\u00f6r kretsjordning - att skydda personer och utrustning fr\u00e5n h\u00f6gsp\u00e4nningskomplikationer och farliga elektriska situationer.<\/p>\n<p>Vad \u00e4r den stora skillnaden mellan dessa tv\u00e5 jordningssystem? Jordning av kretsar\/system skyddar elektriska distributionssystem och de verktyg som \u00e4r anslutna till dem. Utrustningsjordning f\u00f6rb\u00e4ttrar utrustningens s\u00e4kerhet f\u00f6r individer. Tillsammans r\u00e4ddar dessa jordningssystem liv och byggnader i en m\u00e4ngd olika milj\u00f6er.<\/p>\n<h2>Betydelsen av jordningssystem<\/h2>\n<p>Det \u00e4r troligen uppenbart vid det h\u00e4r laget, men det \u00e4r v\u00e4rt att upprepa den \u00f6verv\u00e4ldigande betydelsen av jordningssystem. Dessa skyddskretsar minskar avsev\u00e4rt risken f\u00f6r d\u00f6dliga <a href='https:\/\/vm6fr4whzn6.c.updraftclone.com\/sv\/2019\/12\/12\/vanliga-orsaker-till-elbrander\/'>elektriska st\u00f6tar, elektriska br\u00e4nder,<\/a> och andra h\u00f6gsp\u00e4nningsproblem.<\/p>\n<p>Som tidigare n\u00e4mnts kommer elektriska str\u00f6mmar att anv\u00e4nda m\u00e4nniskokroppen som en v\u00e4g till jorden och orsaka betydande inre v\u00e4vnadsskador p\u00e5 grund av h\u00f6ga volttal och ampere. H\u00f6ga sp\u00e4nningar orsakar de st\u00f6rsta kroppsliga skadorna, medan h\u00f6ga amperetal kan st\u00f6ra hj\u00e4rtverksamheten och leda till hj\u00e4rtstillest\u00e5nd. Alla <a href='https:\/\/vm6fr4whzn6.c.updraftclone.com\/sv\/konsultomraden\/kriminalteknisk-radgivning\/elektroteknik\/elektrisk-skada\/'>det elektriska systemet m\u00e5ste ha korrekt jordning f\u00f6r att undvika skador<\/a> och kostsamma skador p\u00e5 infrastrukturen. Detta g\u00e4ller f\u00f6r alla byggnader - kommersiella, industriella, detaljhandels- eller bostadshus - oavsett typ av anv\u00e4ndning.<\/p>\n<h2>Gemensamma komplikationer vid jordning<\/h2>\n<p>Precis som med alla elektriska risker kan du r\u00e5ka ut f\u00f6r komplikationer i samband med dina jordningssystem. Vissa problem, t.ex. jordslingor (som skapas av flera utrustningar som delar p\u00e5 en gemensam krets) och \u00f6verfl\u00f6diga jordspett, orsakar prestandaproblem f\u00f6r din elektriska utrustning. Andra problem, som saknade skyddsjordar i elsystem eller jordfel, kan orsaka allvarliga skador p\u00e5 personer och byggnader.<\/p>\n<p>Jordfel kan h\u00e4mma ett f\u00f6retags produktivitet och \u00f6vergripande framg\u00e5ng och permanent skada dyrbar elektrisk utrustning. Regelbundna inspektioner (eller efter m\u00e4rkbara prestandaproblem eller en elektrisk n\u00f6dsituation) av professionella elektriker rekommenderas starkt f\u00f6r att s\u00e4kerst\u00e4lla <a href='https:\/\/vm6fr4whzn6.c.updraftclone.com\/sv\/2023\/08\/11\/varfor-kommersiella-byggnader-behover-provning-av-jordningssystem\/'>elektriska system i kommersiella byggnader \u00e4r korrekt jordade<\/a>.<\/p>\n<h2>Kraftstationen p\u00e5 Pearl Street: Jordningsmetoder f\u00f6r tidiga kretsar<\/h2>\n<p>Nu n\u00e4r du f\u00f6rst\u00e5r skillnaderna och den \u00f6vergripande betydelsen av jordningssystem, l\u00e5t oss l\u00e4ra oss mer om deras ursprung, specifikt jordning av elsystem. Komplexa elektriska system uppfanns f\u00f6rsta g\u00e5ngen 1882 med Thomas Edisons Pearl Street Power Station i New York City. Detta kraftverk levererade tillr\u00e4ckligt med energi f\u00f6r att driva 5 000 lampor hos 85 kunder p\u00e5 Manhattan. \u00c4nnu viktigare \u00e4r att det inneh\u00f6ll en tidig version av en jordningselektrod som \u00e5terf\u00f6rde negativa str\u00f6mmar till anl\u00e4ggningens \u00e5ngdrivna 110-V-dynamo.<\/p>\n<p>Edisons konstruktioner var bristf\u00e4lliga. Hans flytande konstruktion gjorde att likstr\u00f6mmar kunde fl\u00f6da fritt genom anslutna byggnader och till och med genom det omgivande kvarteret. Enligt en rapport fick en h\u00e4st en mindre elchock n\u00e4r den gick \u00f6ver en elektrifierad jordpl\u00e4tt n\u00e4ra Pearl Street Station. Den ber\u00f6mde amerikanske uppfinnaren \u00e5terv\u00e4nde till ritbordet och skapade en \u00f6verl\u00e4gsen l\u00f6sning. I st\u00e4llet f\u00f6r att anv\u00e4nda en v\u00e4g f\u00f6r \u00e5terkommande str\u00f6mmar delade Edison upp sitt jordningssystem i tv\u00e5 punkter, var och en ansvarig f\u00f6r utg\u00e5ende eller \u00e5terkommande str\u00f6mmar. I slut\u00e4ndan blev hans tretr\u00e5diga <a href='https:\/\/vm6fr4whzn6.c.updraftclone.com\/sv\/2020\/06\/18\/exempel-pa-tjanster-for-elteknisk-design\/'>design antogs som standard f\u00f6r elektriska och elektroniska<\/a> distribution i bost\u00e4der och bostadshus.<\/p>\n<p>Med den h\u00e4r korta f\u00f6rklaringen av de tv\u00e5 typerna av jordningssystem kan du se till att din kommersiella, industriella, detaljhandels-, bostads- eller annan typ av byggnad \u00e4r s\u00e4ker fr\u00e5n allvarliga elektriska faror. Anst\u00e4lla kvalitet\u00a0<a href=\"https:\/\/vm6fr4whzn6.c.updraftclone.com\/sv\/services\/elektrisk-kraft\/provning-av-jordningssystem\/\">Markprovningsf\u00f6retag<\/a>\u00a0\u00e4r avg\u00f6rande, oavsett om du ska p\u00e5b\u00f6rja ett nytt byggprojekt eller beh\u00f6ver en genomg\u00e5ng av befintliga elsystem. Som tur \u00e4r har v\u00e5rt trevliga team p\u00e5 Dreiym Engineering den erfarenhet, kunskap och utrustning som kr\u00e4vs f\u00f6r att hj\u00e4lpa dig att f\u00f6rst\u00e5 dina elsystem.<\/p>\n<p>V\u00e5r kapacitet f\u00f6r markprovning omfattar f\u00f6ljande:<\/p>\n<ul>\n<li>M\u00e4tningar med kl\u00e4mma<\/li>\n<li>Metoder med tv\u00e5 stift<\/li>\n<li>Fall-of-potential metoder<\/li>\n<li>St\u00f6rningar fr\u00e5n katodiskt skydd<\/li>\n<li>Allm\u00e4n testning av befintliga system<\/li>\n<\/ul>\n<p>Dessa <a href='https:\/\/vm6fr4whzn6.c.updraftclone.com\/sv\/konsultomraden\/kriminalteknisk-radgivning\/brandexplosion\/brandutredningstjanster-for-eldrivna-fordon\/'>tj\u00e4nster s\u00e4kerst\u00e4ller kvaliteten och funktionen hos dina elektriska<\/a> utrustning och minska f\u00f6rs\u00e4mring och stora, dyra komplikationer. Viktigast av allt \u00e4r att v\u00e5ra tj\u00e4nster utf\u00f6rs i enlighet med riktlinjerna i National Electrical Code. Kontakta oss idag f\u00f6r att f\u00e5 mer information om mark <a href='https:\/\/vm6fr4whzn6.c.updraftclone.com\/sv\/2023\/05\/17\/4-metoder-for-provning-av-katodiskt-skydd\/'>provning och tillh\u00f6rande elektriskt skydd<\/a> processer.<\/p>\n<img decoding=\"async\" class=\"aligncenter wp-image-3908 size-full\" src=\"https:\/\/vm6fr4whzn6.c.updraftclone.com\/wp-content\/uploads\/2023\/02\/grounding-systems.jpg\" alt=\"\" width=\"880\" height=\"2000\" srcset=\"https:\/\/vm6fr4whzn6.c.updraftclone.com\/wp-content\/uploads\/2023\/02\/grounding-systems.jpg 880w, https:\/\/vm6fr4whzn6.c.updraftclone.com\/wp-content\/uploads\/2023\/02\/grounding-systems-132x300.jpg 132w, https:\/\/vm6fr4whzn6.c.updraftclone.com\/wp-content\/uploads\/2023\/02\/grounding-systems-768x1745.jpg 768w, https:\/\/vm6fr4whzn6.c.updraftclone.com\/wp-content\/uploads\/2023\/02\/grounding-systems-676x1536.jpg 676w\" sizes=\"(max-width: 880px) 100vw, 880px\" \/>","protected":false},"excerpt":{"rendered":"<p>In 1752, famed Philadelphian Benjamin Franklin boldly flew a kite with a metal key on it through a thunderstorm. Lightning struck the key, displaying the raw characteristics of electricity in front of human eyes for the very first time\u2014except, this isn\u2019t really how the story goes. Humans were well aware of the power generation potential [&hellip;]<\/p>\n","protected":false},"author":8,"featured_media":3296,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_mbp_gutenberg_autopost":false,"_pgmb_is_evergreen":true,"_pgmb_ap_template_id":0,"iawp_total_views":334,"footnotes":""},"categories":[4],"tags":[],"class_list":["post-3193","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-electrical"],"acf":[],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO Pro 4.9.6.2 - aioseo.com -->\n\t<meta name=\"description\" content=\"In 1752, famed Philadelphian Benjamin Franklin boldly flew a kite with a metal key on it through a thunderstorm. 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