Cable for ship marine closed circuit television camera and manufacturing method thereof
A closed-circuit television and camera technology, which is used in the manufacture of cables/conductors, insulated cables, and coaxial cables. Noise, good grounding effect
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Embodiment 1
[0017] (1) Manufacture coaxial cable 1, twisted core wire 2 and power cable 3 respectively;
[0018] Take seven bare copper wire bundles with a diameter of 0.2mm and twist them into the central conductor 1a of the coaxial cable, and the stranding pitch ratio is 12; mm, the outer diameter of the coaxial cable insulating layer 1b after extrusion is 2.4mm; then, the outer diameter of the coaxial cable insulating layer 1b is braided with bare copper wires with a diameter of 0.12mm, the braiding density is 90%, and the mesh number is 94 mesh; Extrude the coaxial cable sheath 1d outside the coaxial cable shielding layer 1c, using halogen-free elastomer or thermosetting material, the thickness of the coaxial cable sheath 1d is 0.4mm, and the overall outer diameter of the formed coaxial cable is 3.8mm ;
[0019]Take seven tinned copper wire bundles with a diameter of 0.2mm and twist them into a twisted pair conductor 2a respectively, and the twisted pitch ratios are 8 and 10 respecti...
Embodiment 2
[0026] (1) Manufacture coaxial cable 1, twisted core wire 2 and power cable 3 respectively;
[0027] Take seven bare copper wire bundles with a diameter of 0.2mm and twist them into the central conductor 1a of the coaxial cable, with a stranding pitch ratio of 15; mm, the outer diameter of the coaxial cable insulation layer 1b after extrusion is 2.5mm; then, the outer diameter of the coaxial cable insulation layer 1b is woven with bare copper wires with a diameter of 0.13mm, the braiding density is 90%, and the mesh number is 98 mesh; The coaxial cable sheath 1d is extruded outside the coaxial cable shielding layer 1c, using halogen-free elastomer or thermosetting material, the thickness of the coaxial cable sheath 1d is 0.45mm, and the overall outer diameter of the formed coaxial cable 1 is 4.0 mm;
[0028] Take seven tinned copper wire bundles with a diameter of 0.2 mm and twist them into a twisted pair conductor 2a respectively, and the twisted pitch ratios are 9 and 12 re...
Embodiment 3
[0035] (1) Manufacture coaxial cable 1, twisted core wire 2 and power cable 3 respectively;
[0036] Take seven bare copper wire bundles with a diameter of 0.2mm and twist them into the central conductor 1a of the coaxial cable, and the stranding pitch ratio is 13; mm, the outer diameter of the coaxial cable insulating layer 1b after extrusion is 2.45mm; then, the outer diameter of the coaxial cable insulating layer 1b is braided with bare copper wires with a diameter of 0.12mm, the braiding density is 90%, and the mesh number is 96 mesh; The coaxial cable sheath 1d is extruded outside the coaxial cable shielding layer 1c, using halogen-free elastomer or thermosetting material, the thickness of the coaxial cable sheath 1d is 0.42mm, and the overall outer diameter of the formed coaxial cable 1 is 3.9 mm;
[0037] Take seven tinned copper wire bundles with a diameter of 0.2mm and twist them into a twisted pair conductor 2a respectively, and the twisted pitch ratios are 8 and 11...
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