{"id":3413,"date":"2022-03-30T12:25:58","date_gmt":"2022-03-30T10:25:58","guid":{"rendered":"https:\/\/mi.addevmaterials.com\/?p=3413"},"modified":"2025-07-24T13:18:57","modified_gmt":"2025-07-24T13:18:57","slug":"vyber-spravne-elektricke-izolace-pro-tepelnou-tridu-vaseho-zarizeni","status":"publish","type":"post","link":"https:\/\/addevmaterials.com\/converting\/cs\/choosing-the-right-electrical-insulation-for-the-thermal-class-of-your-equipment\/","title":{"rendered":"V\u00fdb\u011br spr\u00e1vn\u00e9 elektrick\u00e9 izolace pro tepelnou t\u0159\u00eddu va\u0161eho za\u0159\u00edzen\u00ed"},"content":{"rendered":"
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V\u00fdb\u011br spr\u00e1vn\u00e9 elektrick\u00e9 izolace pro tepelnou t\u0159\u00eddu va\u0161eho za\u0159\u00edzen\u00ed<\/h1>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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Home<\/a><\/span><\/span>\n<\/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
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Krom\u011b zaji\u0161t\u011bn\u00ed dielektrick\u00e9 funkce mus\u00ed m\u00edt izola\u010dn\u00ed materi\u00e1l tak\u00e9 teplotn\u00ed odolnost odpov\u00eddaj\u00edc\u00ed podm\u00ednk\u00e1m pou\u017eit\u00ed chr\u00e1n\u011bn\u00e9ho za\u0159\u00edzen\u00ed. Tato schopnost je charakterizov\u00e1na tepelnou t\u0159\u00eddou a mus\u00ed b\u00fdt uvedena ve specifikac\u00edch.<\/em><\/p>\t\t\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

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Jak\u00e1 je tepeln\u00e1 t\u0159\u00edda elektrotechnick\u00fdch za\u0159\u00edzen\u00ed podle IEC 60085?<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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Teplotn\u00ed t\u0159\u00edda ur\u010duje maxim\u00e1ln\u00ed teplotu, p\u0159i kter\u00e9 si elektrick\u00fd izolant zachov\u00e1 ur\u010ditou tepelnou stabilitu s ohledem na st\u00e1rnut\u00ed. Je to tedy sv\u00fdm zp\u016fsobem\u00a0<\/span>maxim\u00e1ln\u00ed teplota pou\u017eit\u00ed<\/span><\/strong>\u00a0doporu\u010deno pro optim\u00e1ln\u00ed \u017eivotnost izolace.<\/span><\/p>

Teplotn\u00ed t\u0159\u00edda izolantu je definov\u00e1na p\u00edsmenem podle normy IEC 60085:<\/span><\/p>\t\t\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

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Varov\u00e1n\u00ed<\/strong>\u00a0<\/strong>: teplota zobrazen\u00e1 na tepeln\u00e9 t\u0159\u00edd\u011b odpov\u00edd\u00e1 teplot\u011b<\/span>\u00a0skute\u010dn\u00e1 teplota na \u00farovni izolace<\/span><\/strong>\u00a0. Nesm\u00ed se zam\u011b\u0148ovat s maxim\u00e1ln\u00ed teplotou okol\u00ed nebo s n\u00e1r\u016fstem teploty v p\u0159\u00edpad\u011b transform\u00e1toru.<\/span><\/p>\t\t\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

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Certifikace izola\u010dn\u00edch materi\u00e1l\u016f UL\n<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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Krom\u011b normy IEC 60085 existuj\u00ed i dal\u0161\u00ed normy pro klasifikaci izola\u010dn\u00edch materi\u00e1l\u016f, kter\u00e9 mohou vyd\u00e1vat certifika\u010dn\u00ed org\u00e1ny. V t\u00e9to oblasti je jednou z nejpresti\u017en\u011bj\u0161\u00edch zna\u010dek shody v\u00fdrobk\u016f a celosv\u011btov\u011b uzn\u00e1vanou bezpe\u010dnostn\u00ed zna\u010dkou certifikace UL, kterou vyd\u00e1v\u00e1 spole\u010dnost Underwriters Laboratories\u00ae. Elektrick\u00e9mu izolantu s certifikac\u00ed UL je tedy p\u0159i\u0159azena tzv.\u00a0<\/span>\"UL karta\", kter\u00e1 je sv\u00fdm zp\u016fsobem pasem shody izol\u00e1toru.<\/span><\/strong>\u00a0.<\/span><\/p>

Co se t\u00fd\u010de tepeln\u00fdch vlastnost\u00ed materi\u00e1lu, karta UL uv\u00e1d\u00ed n\u011bkolik \u00fadaj\u016f:<\/span><\/p>