H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
H05B3/00—Ohmic-resistance heating
H05B3/10—Heating elements characterised by the composition or nature of the materials or by the arrangement of the conductor
H05B3/12—Heating elements characterised by the composition or nature of the materials or by the arrangement of the conductor characterised by the composition or nature of the conductive material
H05B3/14—Heating elements characterised by the composition or nature of the materials or by the arrangement of the conductor characterised by the composition or nature of the conductive material the material being non-metallic
H05B3/148—Silicon, e.g. silicon carbide, magnesium silicide, heating transistors or diodes
Four electrique a haute temperature dont les resistances sont des tubes conducteurs verticaux creux chauffants maintenus en place par des tubes epingles faisant office d'etriers, dans lesquels circule de l'air frais