{"id":1272,"date":"2018-12-17T13:22:24","date_gmt":"2018-12-17T13:22:24","guid":{"rendered":"https:\/\/limit-tools.com\/tips-and-tricks\/about-electrical-safety\/"},"modified":"2020-03-10T12:25:30","modified_gmt":"2020-03-10T12:25:30","slug":"om-elsakerhet","status":"publish","type":"page","link":"https:\/\/limit-tools.com\/sv\/tips-and-tricks\/eltest\/om-elsakerhet\/","title":{"rendered":"D\u00e4rf\u00f6r \u00e4r els\u00e4kerhet viktigt"},"content":{"rendered":"

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I takt med att distributionssystem och belastning blir alltmer komplexa \u00f6kar risken fo\u0308r o\u0308verspa\u0308nningstransienter. D\u00e5 \u00e4r det viktigt att ha kunskap om els\u00e4kerhet. Motorer, kondensatorer och utrustning fo\u0308r stro\u0308mkonvertering, som motorstyrningar med variabel hastighet, kan ge upphov till ljusba\u030agar. Blixtnedslag i kraftledningar utomhus kan orsaka extremt farliga transienter med ho\u0308g energi. Na\u0308r du utfo\u0308r ma\u0308tningar pa\u030a elektriska system utgo\u0308r dessa transienter en \u201cosynlig\u201d och i stort sett oundviklig fara. de uppsta\u030ar regelbundet i la\u030agspa\u0308nningskretsar och kan n\u00e5 toppv\u00e4rden p\u00e5 tusentals volt. f\u00f6r att du ska kunna skydda dig mot transienter ma\u030aste sa\u0308kerheten finnas inbyggd i testutrustningen. V\u00e5ra produkter f\u00f6ljer alla s\u00e4kerhetsregler och \u00e4r d\u00e4rf\u00f6r els\u00e4krade, se v\u00e5rt utbud h\u00e4r.<\/a><\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n

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\"Overvoltage
I texter och tabeller har vi angivit sa\u0308kerhetsklassen fo\u0308r respektive instrument sa\u030a att du kan va\u0308lja ra\u0308tt niva\u030a fo\u0308r dina arbeten.<\/figcaption><\/figure><\/div>[\/vc_column][\/vc_row][vc_row css_animation=”bounceIn” css=”.vc_custom_1545052763468{border-radius: 2px !important;}”][vc_column width=”1\/3″][vc_column_text]<\/p>\n

\u00d6versp\u00e4nning<\/h4>\n

[\/vc_column_text][vc_column_text]KAT IV<\/strong>[\/vc_column_text][\/vc_column][vc_column width=”1\/3″][vc_column_text]<\/p>\n

Sammanfattning<\/h4>\n

[\/vc_column_text][vc_column_text]Trefas p\u00e5 prim\u00e4r niv\u00e5, alla ledare f\u00f6r utomhusbruk.[\/vc_column_text][\/vc_column][vc_column width=”1\/3″][vc_column_text]<\/p>\n

Exempel<\/h4>\n

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  • Ha\u0308nvisar till \u201cinstallationens ursprung\u201d, dvs. da\u0308r la\u030agspa\u0308nningsanslutningen anslo\u0308ts till eluttaget.<\/li>\n
  • Elma\u0308tare, prima\u0308ra o\u0308verslagsskyddsutrustningar<\/li>\n
  • Utomhus och pa\u030a serviceniva\u030a, serviceledningar fra\u030an pol till byggnad, ga\u030ar mellan ma\u0308tare och panel.<\/li>\n
  • Luftfo\u0308rbindelse med friliggande byggnad, markfo\u0308rbindelse med brunnspump.<\/li>\n<\/ul>\n

    [\/vc_column_text][\/vc_column][\/vc_row][vc_row][vc_column width=”1\/3″][vc_column_text]KAT III<\/strong>[\/vc_column_text][\/vc_column][vc_column width=”1\/3″][vc_column_text]Trefasdistribution, inklusive enfasig kommersiell belysning.[\/vc_column_text][\/vc_column][vc_column width=”1\/3″][vc_column_text]<\/p>\n

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    • Utrustning i fasta installationer, t.ex. kontrollutrustning och flerfasmotorer.<\/li>\n
    • Buss och matning vid industrianla\u0308ggningar.<\/li>\n
    • Matarkablar och korta huvudspa\u0308nningskretsar, distributionspanelsenheter.<\/li>\n
    • Belysningssystem i sto\u0308rre byggnader<\/li>\n
    • Apparatuttag med korta anslutningar till serviceniva\u030an.<\/li>\n<\/ul>\n

      [\/vc_column_text][\/vc_column][\/vc_row][vc_row][vc_column width=”1\/3″][vc_column_text]KAT II<\/strong>[\/vc_column_text][\/vc_column][vc_column width=”1\/3″][vc_column_text]<\/p>\n

      Enfas kontaktanslutna belastningar<\/div>\n

      [\/vc_column_text][\/vc_column][vc_column width=”1\/3″][vc_column_text]<\/p>\n

        \n
      • Utrustning, b\u00e4rbara verktyg samt hush\u00e5lls- och andra belastningar.<\/li>\n
      • Uttag och la\u030anga huvudspa\u0308nningskretsar.<\/li>\n
      • Uttag vid mer a\u0308n 10 meter fra\u030an KAT III-ka\u0308llan.<\/li>\n
      • Uttag vid mer a\u0308n 20 meter fra\u030an KAT IV-ka\u0308llan.<\/li>\n<\/ul>\n

        [\/vc_column_text][\/vc_column][\/vc_row]<\/p>\n<\/div>","protected":false},"excerpt":{"rendered":"[vc_row][vc_column][vc_column_text] I takt med att distributionssystem och belastning blir alltmer komplexa \u00f6kar risken fo\u0308r o\u0308verspa\u0308nningstransienter. D\u00e5 \u00e4r det viktigt att […]","protected":false},"author":2,"featured_media":1273,"parent":4406,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_acf_changed":false,"footnotes":""},"class_list":["post-1272","page","type-page","status-publish","has-post-thumbnail","hentry"],"acf":[],"yoast_head":"\nD\u00e4rf\u00f6r \u00e4r els\u00e4kerhet viktigt - Precision measuring instruments | Limit<\/title>\n<meta name=\"description\" content=\"L\u00e4r dig mer om els\u00e4kerhet och \u00f6versp\u00e4nning samt hur du kan skydda dig mot elektriskt relaterade risker. 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