{"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":"alegerea-izolatiei-electrice-potrivite-pentru-clasa-termica-a-echipamentului-dumneavoastra","status":"publish","type":"post","link":"https:\/\/addevmaterials.com\/converting\/ro\/alegerea-izolatiei-electrice-potrivite-pentru-clasa-termica-a-echipamentului-dumneavoastra\/","title":{"rendered":"Alegerea izola\u021biei electrice potrivite pentru clasa termic\u0103 a echipamentului dvs."},"content":{"rendered":"
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Alegerea izola\u021biei electrice potrivite pentru clasa termic\u0103 a echipamentului dvs.<\/h1>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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Acas\u0103<\/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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Pe l\u00e2ng\u0103 asigurarea unei func\u021bii dielectrice , un material izolator trebuie s\u0103 aib\u0103 \u0219i o rezisten\u021b\u0103 la temperatur\u0103 corespunz\u0103toare condi\u021biilor de utilizare a echipamentului care trebuie protejat. Aceast\u0103 capacitate este caracterizat\u0103 de clasa termic\u0103 \u0219i trebuie specificat\u0103 \u00een caietul de sarcini.<\/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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Care este clasa termic\u0103 a echipamentelor electrotehnice \u00een conformitate cu IEC 60085?<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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Clasa termic\u0103 determin\u0103 temperatura maxim\u0103 la care un izolator electric \u00ee\u0219i va men\u021bine o anumit\u0103 stabilitate termic\u0103 \u00een ceea ce prive\u0219te \u00eemb\u0103tr\u00e2nirea. Prin urmare, este \u00eentr-un fel\u00a0<\/span>temperatura maxim\u0103 de utilizare<\/span><\/strong>\u00a0recomandat\u0103 pentru o durat\u0103 de via\u021b\u0103 optim\u0103 a izola\u021biei.<\/span><\/p>

Clasa termic\u0103 a unui izolator este definit\u0103 de o liter\u0103, conform standardului 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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Avertisment<\/strong>\u00a0<\/strong>: temperatura afi\u0219at\u0103 pe clasa termic\u0103 corespunde cu temperatura de<\/span>\u00a0temperatura real\u0103 la nivelul izola\u021biei<\/span><\/strong>\u00a0. Aceasta nu trebuie confundat\u0103 cu temperatura ambiant\u0103 maxim\u0103 sau cu cre\u0219terea temperaturii, \u00een cazul unui transformator.<\/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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Certificarea UL a materialelor izolante\n<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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\u00cen afar\u0103 de standardul IEC 60085, exist\u0103 \u0219i alte standarde de clasificare a materialelor izolante care pot fi emise de organismele de certificare. \u00cen acest domeniu, certificarea UL este una dintre cele mai prestigioase m\u0103rci de conformitate a produselor \u0219i o marc\u0103 de siguran\u021b\u0103 recunoscut\u0103 la nivel mondial, emis\u0103 de Underwriters Laboratories\u00ae. Astfel, unui izolator electric certificat UL i se atribuie un\u00a0<\/span>\"Carte UL\", care este \u00eentr-un fel pa\u0219aportul de conformitate al izolatorului.<\/span><\/strong>\u00a0.<\/span><\/p>

\u00cen ceea ce prive\u0219te propriet\u0103\u021bile termice ale materialului, fi\u0219a UL ofer\u0103 mai multe indica\u021bii:<\/span><\/p>