# CS 312-1 - CALCULOS DE CORTOCIRCUITO i f cobre aluminio...

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GERENCIA DE DISTRIBUCIÓN DIVISIÓN INGENIERÍA Y OBRAS CORRIENTE PERMISIBLE DE CORTOCIRCUITO PARA CABLE DE COBRE EN mm 2 15 Y 35 kV (AISLAMIENTO XLPE) DIBUJÓ: ELABORÓ: REVISÓ: APROBACIÓN: ÚLTIMA REVISIÓN: NORMAS ÁREA NORMAS G.V. 09-09-99 09-09-99 CS 312-1 Pág 1 de 1 θ i 90 °C θ f 250 °C β cobre 234.5 K β aluminio 228 K σ c (J/K.m^3) cobre 3.45E+06 J/K.m 3 σ c (J/K.m^3) Aluminio 2.50E+06 J/K.m 3 ρ 20 cobre 1.72E-08 .m ρ 20 aluminio 2.83E-08 .m K= ( σ c ( β +20)x10 -12 / ρ 20 ) cobre 226 A/mm K= ( σ c ( β +20)x10 -12 / ρ 20 ) aluminio 148 A/mm I AD: es la corriente de cortocircuito en kA. Referencia: IEC 949 Calculation of thermally permissible
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## This note was uploaded on 05/18/2010 for the course ELECTRICAL Electrical taught by Professor Electrical during the Spring '10 term at Universidad Nacional de Colombia.

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