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JP11224542 |
To suppress the voltage deterioration to improve the insulating characteristic by including an insulating oil having compatibility to the material constituting an insulating layer and a dynamic viscosity within a specified range in an in...
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JP11224545 |
To prevent the accumulation of space charge by the application of a DC high voltage by constituting an insulator by a resin composition obtained by graft polymerizing maleic anhydride with a low density polyethylene having a specified me...
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JP11213772 |
To impart flexibility to a cable to provide excellent mechanical strength and electric strength by providing an insulating layer obtained by cross-linking an ethylene-octene copolymer obtained by polymerization by use of metallocene as c...
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JP11209527 |
To obtain both a polyolefin resin composition having excellent low- temperature characteristics and heat resistance and an electric ware/cable having excellent low-temperature characteristics and heat resistance by constituting an insula...
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JP11209627 |
To obtain a resin composition excellent electrical conductivity and extrudability by compounding a base resin with encapsulated graphite. There is provided a semiconductive resin composition prepared by compounding 100 pts.wt. base resin...
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JP11203939 |
To prevent the degradation of a thermoplastic rubber caused by the catalytic action of a conductor of a power cable having an insulating layer formed from the thermoplastic rubber or a semiconductive layer. An inner semiconductive layer ...
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JP11176264 |
To manufacture a solid power cable which admits impregnation of a high viscosity oil after getting rid of oil satisfactorily whereby an appropriate amount wet swelling of a polyolefin resin film can be obtained even if the content of pol...
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JP11176250 |
To provide a high dielectric breakdown strength even heated at the time of carrying current by using non-crosslinked resin composition containing mainly a copolymer of an unsaturated hydrocarbon having a specified density and a specified...
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JP11176251 |
To provide a gas insulated cable having excellent dielectric characteristics and a method to fabricate such cables. A gas insulated cable 1 is equipped with a circular pipe 2 made of insulative material filled with an insulating gas, a c...
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JP11172057 |
To provide a semiconducting resin composition which has good water- crosslinkability, does not undergo premature crosslinking and produces no gel, with the result of giving a smooth and projection-free interface between a semiconducting ...
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JP11167824 |
To provide a cushion tape which suits for constituting a cushion layer of an insulating power cable, is lightweight, has excellent cushioning performance and productivity, and is easily manufactured. This cushion tape for covering an ins...
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JP11167822 |
To provide a cushion layer of an insulating power cable with light weight, good cushioning capability, and easy to produce by forming with a semi-conductive nap raising cloth having many independent nap raisings. A cushion tape 30 is pro...
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JP11167823 |
To provide a cushion tape which suits for constituting a cushion layer of an insulating power cable, is lightweight, has excellent cushioning performance and productivity, and is easily manufactured. This cushion tape is composed of a se...
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JP11162256 |
To prevent viscosity of insulating oil from rising and hydraulic pressure from failing to be sufficiently applied, by composing the insulating oil of a specific quantity of mixture of alkyldiphenylmethane and alkyldiphenylethane and sett...
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JP11154425 |
To provide a rubber and plastic power cable by which a danger of existence of an external damage reaching a cable insulator can be detected without carrying out a withstand voltage test when the cable insulator is damaged by a conductive...
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JP11149831 |
To provide a solid DC cable in which discharging in a void can be suppressed, even if void are produced in an insulating layer immediately above a conductor, when load is shut down. An insulating layer 3 is constituted by a main insulati...
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JP11144573 |
To prevent a foreign matter containing an insulating liquid from being sprung out to a gas space again by partial discharge suppression and the surface tension of the liquid by including an insulating gas and an insulating liquid in comb...
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JP11144531 |
To provide a running-water-preventive power cable whose long-term reliability is enhanced by preventing a voltage drop and heating, both of which may be caused by a charging current, from occurring concentratingly below the valley parts ...
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JP11134946 |
To provide a solid DC cable in which electric discharge occurrence in voids is suppressed even in the case voids are formed in an insulating layer formed immediately on a conductor at the time of shutting off load. A low resistance Kraft...
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JP2930524 |
PURPOSE: To effectively restrain a temperature increase due to heat during transmission so as to achieve a good appearance and facilitate manufacturing work by extruding a hollow portion for a cooling medium passage on a conductive membe...
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JP11134942 |
To improve an insulating characteristic while lowering storage of space charge in a solid insulating body due to the applying of direct current high-voltage, and improve a direct current characteristic in comparison with a cross-linked p...
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JP11120838 |
To reduce cable cost, and reduce the inside diameter of a cable-laying pipeline by constituting an aggregate having an almost circular cross section by bundling plural conductors, and arranging the conductors in parallel in the axial dir...
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JP11120837 |
To restrain the generation of a magnetic field outside of a DC power cable, without the use of a neutral conductor cable by arranging a neutral conductor between a main insulating layer and a sheath on the outer peripheral same axis of a...
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JP11120833 |
To provide a neutral wire composite cable for direct current power, capable of shortening the power cable laying construction period, reducing the cost, and which can surely prevent the leak of the magnetic field out of the cable. A main...
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JP11120835 |
To provide a neutral conductor composite cable for direct current power, capable of shortening the power cable construction period, reducing the cost, and which can surely prevent the leak of the magnetic field out of the cable. Two main...
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JP11120834 |
To provide a neutral wire composite cable for direct current power, capable of shortening the power cable laying construction period, reducing the cost, and which can surely prevent the leak of the magnetic field out of the cable. Two ma...
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JP11120836 |
To obviate the laying of a neutral conductor cable by forming an external conductor through stranding/winding of a large number of stranded wires round a cable insulating core, and using it as a return electric current circuit by perform...
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JP11111075 |
To provide a neutral wire containing DC power cable in which reduction of a power cable layout construction period and reduction of cost can be achieved, and in which leak of a magnetic field from the cable outward can be securely preven...
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JP11111071 |
To facilitate factory joint(FJ) work, and improve an FJ part cable mechanical characteristic by forming an external conductor by SZ twisting of a large number of copper wires, and performing insulating process necessary for the external ...
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JP11111076 |
To provide an oil-impregnated power cable in which impregnation of high viscosity insulation oil can be speedily performed in manufacturing the cable, in which dielectric breakdown characteristics are favorable, and in which adhesion bet...
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JP11102616 |
To improve a dielectric breakdown characteristic by using an ethylene (co)polymer as an insulating layer, setting density of this ethylene (co)polymer to a specific value, and setting the size of an amorphous domain not more than a speci...
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JP11096836 |
To provide a high reliability high resistance type sheath interrupter which suppresses the occurrence of partial discharge on the surface of a part of high resistance caused by cutting an outside semiconductor layer. A pressing tape 2 is...
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JP11086636 |
To provide a satisfactory DC insulating characteristic and lightning impulse intensity resistance and reduce the thickness of an insulating layer by providing an insulating layer, consisting of a cross-linked polyethylene and containing ...
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JP11086646 |
To provide a high-tension cable in which slippages, deirations, etc., or stickiness and touling are not produced on its metallic shield tape. A high-tension cable 10 has a conductor 11, an insulation layer 12 covering the conductor 11, a...
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JP11086634 |
To provide superior DC insulating characteristic and impulse the breaking characteristic by using a cross-linked polyethylene containing a polarized inorganic filler as an insulating layer, treating the polarized inorganic filler with a ...
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JP11086635 |
To manufacture a lengthy cable by providing an insulating layer consisting of a cross-linked polyethylene, including a specified quantity or less of a polarized inorganic filler in the insulating layer, including no benzene ring in the c...
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JP11073822 |
To reduce an ambient magnetic field by arranging one phase of three phases of a three-phase current power cable in the center by using at least one conductor, and alternately arranging at equal intervals the conductors of the other two p...
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JP11066976 |
To provide a cable for high-voltage electronics which can improve corona resistance without increasing its outer diameter. An internal semiconductive layer 16 and a high-voltage insulator 17 are fitted in order around the outer periphery...
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JP11053965 |
To provide the manufacturing method of a cross-linked polyethylene insulated cable which hardly generates scorching and sufficiently cross-linking an outer semiconducting layer. A material to which a photosensitizer has been added is use...
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JP11053954 |
To improve reliability of operation without increasing the cost of an electric power system by a method, wherein a good electrical conductor whose electrical resistance increases sharply by a temperature rise is used as an inner conducto...
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JP11031421 |
To provide a power cable for bulk power transmission capable of transmitting bulk power by improving it so as not to suppress the thermal expansion in the radial direction of the cable. Three individual power cables made of a power cable...
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JP11016421 |
To provide a direct current power cable that improves a direct current breakdown characteristic, and also improves a characteristic lighting impulse breakdown characteristic substantially. This power cable uses an insulating composition,...
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JP11016420 |
To provide a non-halogen nonflammable electric wire/cable whose nonflammability does not deteriorate by color coating on the coating layer of nonflammable polyolefin system resin. This electrical wire/cable uses polyolefin system resin a...
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JP10340640 |
To prevent reversal of deformed stranded wires at conductor manufacturing time by forming a hollow segmental conductor structure by intertwisting plural deformed stranded wires, and setting the ratio of a width to a thickness of a deform...
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JP10340641 |
To prevent the occurrence of looseness and parting when a conductor is bent after an intertwist is completed, and prevent stagnation of manufacture by setting a stranding pitch with respective layers of a segmental conductor by intertwis...
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JP10334747 |
To provide a solid insulted cable and a manufacturing method thereof capable of making pores as small as possible which re formed in an interior of the solid insulated cable during its manufacture. This solid insulated cable is provided ...
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JP10334748 |
To prevent an electric tree from penetrating through an insulating layer in the thickness direction even when a foreign matter is present in the insulating layer to produce the electric tree by providing at least one semiconductor layer ...
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JP10334742 |
To easily obtain a kraft paper for insulation having excellent electrical and mechanical characteristics suitable for an oil impregnated power cable. A low pentosan containing pulp the pentosan content of which is 3% or less and the Kapp...
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JP10321052 |
To not to leave curling formed in production and facilitate handling by thinning in order the thickness of a segment in each layer, from the inner layer toward the outer layer. A hollow segmental conductor 1 has a six-layer structure for...
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JP10321056 |
To eliminate the generation of a water-tree even in the event of submerged electric charge and field high quality and a long life. As a manufacturing method for this wire, first, a conductor is coated successively with a resin compositio...
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