63results about "Insulated cables" patented technology

An extendible and retractable electrical extension cord device is disclosed, which includes a housing adapted to be secured to a wall of a structure, and a reel mounted in the housing for rotation. An extension cord is wound about the reel, and has a first plug end in the housing and a second plug end extending outwardly through the housing and winding relative to the reel upon rotation thereof in a first direction, and unwinding relative to the reel upon rotation thereof in a second direction. An electric-powered drive assembly is mounted in the housing and is movable between an active condition rotating the reel in the first direction and an inactive condition permitting the reel to rotate freely in at least the second direction.

Communications cable is provided for use in downhole wells wherein the cable will be exposed to a temperature of at least 280° C., the cable including as a component thereof a composition comprising melt-fabricable tetrafluoroethylene/perfluoro(alkyl vinyl ether) copolymer and melt flowable polytetrafluoroethylene, said polytetrafluoroethylene by itself having no tensile property and being present in said composition in an amount effective to enable the component to withstand this temperature, with the high temperature exposure of the cable component being effective to thermally transform the composition in the solid state, thereby obtaining epitaxial co-crystallization.

A modular motor controller family comprises a housing. Solid state switches are selected from one of plural switch sizes for controlling a desired voltage and current range. The switches are mounted in the housing for connection between an AC line and motor terminals for controlling application of AC power to the motor. A logic circuit board is mounted in the housing including logic circuitry for commanding operation of the solid state switches independent of the selected switch size. An interface circuit board selected from one of plural configurations is mounted in the housing and includes interface circuitry connected between the logic circuitry and the solid state switches. The interface circuitry is selected to interface with the selected switch size according to the desired voltage and current range.

An electric cable for power transmission at low voltage has at least one conductor and an insulating coating surrounding the at least one conductor. The insulating coating has at least two insulating layers. In a radial direction from the inside toward the outside of the electrical cable, the insulating coating has at least one insulating layer made of a non-expanded polymeric material and at least one insulating layer made of an expanded polymeric material.

The invention discloses an aluminum conductor cable core drainage cable. The aluminum conductor cable core drainage cable is composed of control cable cores, a butyronitrile insulating layer, an aluminum alloy strip armor layer, an aluminum strip shielding layer and a tinned aluminum strip polyethylene jacket layer. The three sets of control cable cores are arranged inside the butyronitrile insulating layer in an extruding mode, the butyronitrile insulating layer is covered with the aluminum alloy strip armor layer, the aluminum alloy strip armor layer is covered with the aluminum strip shielding layer, and the aluminum strip shielding layer is covered with the tinned aluminum strip polyethylene jacket layer. The cable has the advantages of being low in installing and laying temperature, long in service life, resistant to aging, cold, flaming, and acid and alkali corrosion, and high in tensile resistance.

The invention discloses a shielding cable specially used for a computer with good anti-interference performance. The shielding cable comprises a plurality of conductor wire cores, wherein each conductor wire core is externally and sequentially provided with an insulating layer, a first shielding layer, a coating layer, a second shielding layer, a filling layer, an inner jacket layer, a third shielding layer and an outer jacket layer from inside to outside; and the inner jacket layer and the outer jacket layer are made of polyurethane flame retardant elastic jacket. By adopting this way, the shielding cable is good in anti-interference performance, high in cable strength and good in flame retardant property.

The invention discloses a dragging-resistant double-shielding strengthened multi-core coaxial cable for a computer. The dragging-resistant double-shielding strengthened multi-core coaxial cable comprises a coaxial cable core, a strengthened piece, a taping layer, an inner shielding layer, an outer shielding layer and a protective jacket. The strengthened piece is characterized in that three insulating plates are intersected in the center of the taping layer, the taping layer is evenly divided into three window panes, the coaxial cable core is wrapped inside the window panes of the the strengthened piece, the periphery of the coaxial cable core is respectively tangent with the taping layer and the strengthened piece, an insulating layer is arranged between the inner shielding layer and the outer shielding layer, a copper wire drainage cable and a grounded cable core are wrapped by the insulating layer, and the position between the outer shielding layer and the protective jacket is wrapped by a metal layer. The dragging-resistant double-shielding strengthened multi-core coaxial cable is good in electrical conductivity, long in service life, resistant to high temperature, fireproof and resistant to drag, is widely applied to the fields such as electricity generation, metallurgy, petroleum and chemical engineering, is resistant to oxidation and high in shielding performance, and meanwhile is firm in cable core.

Compositions comprising a thermoplastic elastomer, e.g., a polyurethane, a nitrogen and/or phosphorus-based, intumescent flame retardant, e.g., a polyphosphate, a non-phosphorus-based burn synergist, e.g., carbon black or a metal oxide, and an optional olefin polymer, EVA are provided. Color-stable, halogen-free, flame retardant compositions comprising a thermoplastic elastomer polymer, a phosphorus-based flame retardant, at least 3 weight percent TiO2 and a UV stabilizer are also provided.

A non-halogenous insulated wire possessing sufficient flame retardancy and excellent heat resistance, wear resistance and flexibility, and a wiring harness including the wire. The wire includes a conductor, an inside coat of one or more layers and an outermost coat, wherein the outermost coat is in the range of 10 to 100 μm in thickness and is made from a resin composition including an olefin resin with a melting point of 180° C. or more and/or an olefin resin having a —Si(X₁)(X₂)(X₃) group, by 20 wt % or more, and at least one of the layers of the inside coat is made from a resin composition including (A) an olefin resin with a melting point of 180° C. or more by 50 to 5 part weight, (B) an olefin resin by 50 to 95 part weight, and (C) a metallic hydrate by 30 to 250 part weight.

The polyvinyl chloride resin composition for automotive electric wire of the present invention comprises (A) 100 parts by weight of polyvinyl chloride and, incorporated thereinto, (B) 24.0-26.0 parts by weight of a trimellitic-acid-based ester plasticizer, (C) 5-10 parts by weight of a non-lead stabilizer, (D) 2-10 parts by weight of a reinforcing agent, (E) 2-8 parts by weight of an impact absorber, and (F) 0.3-1.2 parts by weight of a processing aid, and has a Shore D hardness of 68 or higher and a cold resistance, as a property of the material, of −10° C. or below.

The invention provides a fireproof mineral silicone rubber composition, a fireproof mineral silicone rubber material, a preparation method thereof and a power line containing the fireproof mineral silicone rubber material. The fireproof mineral silicone rubber composition comprises, by weight, 50-100 parts of methyl vinyl silicone rubber, 30-50 parts of montmorillonite, 5-10 parts of quaternary ammonium salt surface modifier, 10-20 parts of low-melting-point glass powder, 30-50 parts of aluminum hydroxide and 5-10 parts of polyol. A ceramic layer structure formed by the fireproof mineral silicone rubber composition is stable and even in mechanical performance distribution, and the toughness and fireproof performance of the power line is further increased when the ceramic layer structure is used as the sheath of the power line.

This invention provides a clip-casting combined branch cable and its process method. The existing shortcoming is that contact of two cylindrical cables is linear with two small contact area and a slight loose of the clamp plate will cause separation of the two cables showing that the combined branch cable has small stretching resistance. This invented technology scheme is that it includes a main and a branch cable, their contact part is fixed by a clamp plate with a cast A1 protecting jacket becoming an entire unit, and a rubber plastic insulation jacket covers the cast A1 protecting jacket and joints of the main and branch are casted with A1.

A special-shaped enameled wire, which relates to the technical field of enameled wire processing, includes at least two groups of wire group units, and there are fireproof cotton layers between the wire group units and on the outside of the wire group units, and the outside of the fireproof cotton layer has the wire group Units are wrapped into one overall wrapping layer. The purpose of the present invention is to provide a special-shaped enameled wire with smaller cross-section and more stable.

The invention relates to a pair-twist shielding instrument cable for a flame-retardant fireproof boat and a manufacturing method thereof. Flame-retardant fireproof ethylene propylene rubber insulating layers are extruded on the peripheries of stranded copper conductors in a wrapping way to form insulated cores; the insulated cores are stranded in pairs to form pair-twist wire pairs; gaps of the pair-twist wire pairs are filled with flame-retardant non-absorbent fiber fillers; the periphery of each group of pair-twist wire pairs is wrapped in a copper foil polyester composite belt shielding layer to form a pair-twist group; the copper foil surfaces of the copper foil polyester composite belt shielding layers are inward and tinned stranded copper-wire drainage wires are arranged inside the copper foil polyester composite belt shielding layers; a plurality of groups of pair-twist wire pairs are stranded to form a cable core; and the periphery of the cable core is sequentially coated with a low-intensity non-woven fabric longitudinally-covered layer, an inner jacket, an armor braid and an outer jacket sequentially from inside out. The low-intensity non-woven fabric longitudinally-covered layer is completely in fit with each insulated core in shape, so that gaps between the low-intensity non-woven fabric longitudinally-covered layer and the insulated cores are eliminated, and flame can be conveniently prevented from being spread inwards; and meanwhile, the inner jacket and the insulated cores are guaranteed not to be adhered, so that the insulated cores are not damaged when the jacket is stripped in the constructing process.

The present invention relates to the field of cables, in particular to a high temperature resistant cable, including cable cores, the cable cores are aluminum alloy conductors, each aluminum alloy conductor is externally extruded with a cross-linked polyethylene insulation layer, each aluminum alloy conductor and each cross-linked polyethylene insulation layer form a cable group, three cable groups are provided, isolation stretching group is arranged between the three groups of cable groups, the isolation stretching group comprises a tension-resistant core located at the center of three groupsof cables, a rubber part arranged on the outside of the tension core, a spacer provided on the exterior of the rubber member and enclosing the three sets of cable groups, the isolation frame is wrapped with a mica wrapping tape, The outer part of the mica wrapping tape is provided with a metal shielding layer, the outer part of the metal shielding layer is extruded with a silicone rubber outer sheath, and the cable group is wrapped by a spacer made of soft ceramics inside the invention, so that the inner cable core can be hardened and protected from damage under the high temperature condition, thus gaining time for rescue by people.

The invention provides a semi-conductive waterproof cable which comprises a conductor, a first semi-conductive layer, an insulation layer, a second semi-conductive layer, a buffering expansion layer, a metal shielding layer and an outer protective layer from inside to outside in sequence. The second semi-conductive layer is of a dense structure, the buffering expansion layer is made of polymeric materials mixed with water soluble expansion matters, the expansion degree of the buffering expansion layer is 10-300%, and the thickness of the buffering expansion layer is 0.2-4mm. The semi-conductive waterproof cable has good waterproof performance.

The invention discloses a compensation cable special for a low temperature resistant thermocouple. The cable comprises two or more cable cores, compensation wire cores, a ceramic fluororubber outer sleeve, a copper-clad steel armored layer, a flame-retardant mica tape and a tinned wire woven shielding layer, wherein each cable core is formed by pressing and wrapping a SiO2 ceramic insulated layer on a nickel-chromium-nickel-silicone alloy conductor; the upper and lower gaps between every two adjacent cable cores are respectively provided with a compensation wire core; the copper-clad steel armored layer, the flame-retardant mica tape and the ceramic fluororubber outer sleeve are pressed and wrapped on the tinned wire woven shielding layer sequentially from inside to outside. The temperature loss of the cable is compensated through the compensation wire cores, so that a product can normally work in an environment with the temperature between 80 DEG C below zero to 500 DEG C in a long term, and good flame-retardant performance and radiation resistant performance are realized, the cracking phenomenon caused by temperature shock is reduced, the signal smooth is ensured, and the service life is prolonged.

A high-temperature-resistant anti-winding cable is disclosed in the invention, and comprises a polyamide insulating shell, a glass wool protective shell, ceramic silicone rubber, a cable core and an anti-winding structure, the glass wool protective shell is fixed to the inner wall of the polyamide insulating shell, and a PTFE film waterproof layer is fixed to the inner wall of the side, away from the polyamide insulating shell, of the glass wool protective shell; ceramic silicone rubber is installed on the inner wall of one side of the PTFE film waterproof layer, a fireproof sealant is fixed to the inner wall of the side, away from the PTFE film waterproof layer, of the ceramic silicone rubber, a center ring is fixed to the inner wall of the fireproof sealant, and cable cores are sequentially arranged in the center ring at equal intervals; and anti-static rings are arranged on the outer walls of the cable cores, and the outer sides of the anti-static rings are filled with rubber protective layers. According to the invention, the situation that the cable is wound is reduced, the situation that the cable is fused and burnt out at a high temperature is reduced, and the generation of static electricity around the cable core is reduced.

The invention relates to a sheathing and shielding security data cable. The sheathing and shielding security data cable comprises pair cable groups and an inner sheath, and is characterized in that wire group insulating layers are arranged outside the pair cable groups; the inner sheath is arranged outside the pair cable groups with the wire group insulating layers; an armor layer is wound outside the inner sheath transversely; a total shielding layer woven with copper wires or steel wires is arranged outside the armor stainless steel band; an outer sheath is arranged outside the total shielding layer woven with the copper wires or the steel wires. The sheathing and shielding security data cable can be used to transmit images and voice clearly, and arranged outdoor or in the field with the functions of preventing pressing, radiation and damage by rats.