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ESPECIALIDADES E G P S L
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ESPECIALIDADES E G P S L
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Un calentador eléctrico, constituido esencialmente por un tubo de metal convenientemente curvado, en cuyo interior se aloja una resistencia eléctrica cubierta de un material térreo aislante de la electricidad y buen conductor del calor, el cual, rellenando dicho tubo, aísla la resistencia, terminando los extremos de la misma en el interior de una caja aislante en la que se realizan las conexiones de la resistencia con los conductores exteriores.