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200results about "Concentric cables" patented technology

Manufacturing method of cable for high power transmission equipment and cable

A cable for high power transmission equipment, its structure from inside to outside is: inner conductor, first semiconductive wrapping shielding layer, inner conductor insulation, second semiconducting wrapping shielding layer, outer conductor, wrapping layer, Outer conductor insulation and outer sheath. The insulating layer of the inner conductor is made of silicon rubber; the outer conductor is braided with one or more layers of tinned copper wire; the insulating layer of the outer conductor is made of silicon rubber; the outer sheath layer is made of polyurethane. The manufacturing method of the cable comprises: 1) manufacturing the inner conductor; 2) manufacturing the first semiconductive wrapping shielding layer; 3) manufacturing the inner conductor insulating layer; 4) manufacturing the second semiconductive wrapping shielding layer; 5) manufacturing 6) manufacturing the wrapping layer; 7) manufacturing the insulating layer of the outer conductor; 8) manufacturing the outer sheath layer. In each step, a specific process method is adopted, so that the electrical and mechanical properties of the cable prepared by this method can meet or exceed the detection requirements, so that the cable for high-power transmission equipment can transmit high power safely and reliably, and has the advantages of light weight. , miniaturization, low temperature resistance, good flexibility, small bending radius and other excellent performances, suitable for high electric energy technical equipment.

Low-smoke halogen-free flame-retardant coaxial cable with polyethylene insulating polyolefin sheath

The invention discloses a low-smoke halogen-free flame-retardant coaxial cable with a polyethylene insulating polyolefin sheath, and belongs to the field of cables. The low-smoke halogen-free flame-retardant coaxial cable comprises four cable core conductors which are arranged in an annular array; the outer side of the cable core conductors is coated with an insulating layer; the outer side of theinsulating layer is wrapped with an inner shielding layer; the cable core conductor, the insulating layer and the inner shielding layer form a cable core; reinforcing cable cores are arranged among the four cable cores; the four cable cores are tightly attached to the reinforced cable core; a first outer shielding layer is arranged on the outer side of the cable core; a filling layer is arrangedin a gap between the first outer shielding layer and the cable core. According to the low-smoke halogen-free flame-retardant coaxial cable with the polyethylene insulating polyolefin sheath, the insulating layer, the multi-layer shielding layer, the inner sheath and the outer sheath are arranged, so the coaxial cable can be fully and effectively protected, the flame retardance, the oxidation resistance and the shielding performance of the coaxial cable are greatly improved, and the service life of the cable is prolonged.
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