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Tyler Voss Membership & Communications Specialist+1 314 993 2220tvoss@easa.com
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Los bifenilos policlorados (PCB) son un grupo de sustancias químicas artificiales, líquidos o sólidos aceitosos, de color claro a amarillo, con poco o ningún olor o sabor, y que son mezclas estables resistentes a temperaturas y presiones extremas. La principal empresa que fabricaba PCB en los Estados Unidos era Monsanto Inc., utilizando principalmente el nombre Aroclor; sin embargo, muchas empresas fabricaron sus propias marcas y la lista de las mismas se puede encontrar en este artículo.
Los bifenilos policlorados se utilizaron ampliamente como fluidos dieléctricos y refrigerantes en transformadores, interruptores, condensadores, electroimanes, fluidos de corte para operaciones de mecanizado y en fluidos para transferencia de calor. Incluso se usaron en algunos papeles para copias sin carbón. Se sabe que los aisladores llenos de aceite en transformadores de más de 69 kV a menudo contienen PCB. Debido a la toxicidad ambiental y la clasificación como contaminante orgánico persistente, la producción de PCB fue prohibida por el Congreso de los Estados Unidos en 1979 y por el Convenio de Estocolmo sobre contaminantes orgánicos persistentes en 2001.
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This 40-page booklet provides great advice for obtaining the longest, most efficient and cost-effective operation from general and definite purpose electric motors.
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The Effect of Repair/Rewinding on Premium Efficiency/IE3 Motors Tests prove Premium Efficiency/IE3 Motors can be rewound without degrading efficiency.
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Recommended Practice for the Repair of Rotating Electrical Apparatus This is a must-have guide to the repair of rotating electrical machines. Its purpose is to establish recommended practices in each step of the rotating electrical apparatus rewinding and rebuilding processes.
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Revised May 2024 The EASA Technical Manual is the association's definitive and most complete publication. It's available FREE to members in an online format. Members can also download PDFs of the entire manual or individual sections.
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