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Ejercicio 2: Puntos de utilización en las viviendas En la instalación de una vivienda la promotora decide que, además de los electrodomésticos de uso general, lleve un circuito para secadora. Las estancias, superficies y longitudes son las siguientes:
Se prevé una toma de TV y una toma de TF en cada habitación, salón y cocina. El circuito C4 tendrá 3 circuitos independientes. Se pide:
a) Dibujar el esquema de distribución en planta, señalando los puntos de utilización mínimos correspondientes.
b) Tabla resumen de los puntos de luz C1 y las tomas de corriente C2 instalados para comprobar que no superen los reglamentarios para desdoblar los circuitos correspondientes.
c) Esquema unifilar del CGMP, en el que se indiquen los calibres de los elementos de protección, así como las secciones de los conductores y los diámetros de los tubos.
a) Esquema de distribución en planta La vivienda es de grado elevado por tener previsto un circuito para secadora. Los circuitos a tener en cuenta serán C1 , C2 , C3 , C4 , C5 y C10 . Determinaremos los puntos de luz y las tomas de corriente mínimas que debe tener cada estancia según la ITC-BT-25.
Para la disposición de las tomas de TV y teléfono , el enunciado nos indica que se prevé una toma de TV y una toma de TF en cada habitación, salón y cocina.
En esta tabla se ofrece una explicación y justificación del diseño seleccionado, en base a lo expuesto anteriormente y al plano de la vivienda proporcionado.
b) Tabla resumen de puntos de luz C1 y tomas de corriente C2
No hay que desdoblar ni el circuito C1 ni el circuito C2.
c) Esquema unifilar del CGMP El grado de electrificación será elevado al incorporar el circuito de secadora. Por este motivo, debemos prever una potencia mínima de 9.200 W, un IGA de 40 A, y 2 diferenciales de 40 A/30 mA, siendo la representación del CGMP la siguiente:
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