B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
B23K5/00—Gas flame welding
B23K5/02—Seam welding
B23K5/06—Welding longitudinal seams
H—ELECTRICITY
H01—ELECTRIC ELEMENTS
H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
H01B13/22—Sheathing; Armouring; Screening; Applying other protective layers
H01B13/26—Sheathing; Armouring; Screening; Applying other protective layers by winding, braiding or longitudinal lapping
H01B13/2613—Sheathing; Armouring; Screening; Applying other protective layers by winding, braiding or longitudinal lapping by longitudinal lapping
H01B13/2633—Bending and welding of a metallic screen
Element tubulaire isole pour la realisation d'installations aeriennes vehiculant des fluides, procede pour sa realisation et installations constituees de tels elements