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JP2006005983A |
To provide a corrugate tube capable of accommodating a wire harness without causing damage thereto and allowing the good accommodation work of a corrugate tube well.In the corrugate tube having a slit formed at the tubular circumference ...
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JP2005312248A |
To provide a designing device for building lightning protection equipment that can quickly and easily define a protective region of the lightning protection equipment and a part to be repaired.Building information including shape informa...
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JP2005273328A |
To prevent a lightning current from passing by rationally applying electrical insulation to a specific important room formed of partition walls such as lightweight partition walls, as a subsequent attenuation region (LPZ2).This lightning...
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JP2005278352A |
To provide a lightning-receiving-portion-supporting-pipe mounting base that makes it easy to insert a supporting pipe on which a lightning-receiving portion is mounted and that can secure supporting relation with the supporting pipe.The ...
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JP2005269731A |
To predict correctly the change of thunder accident rate of a distribution line when a system configuration is changed.An accident rate calculator 1 calculates the thunder accident rate 90 of a subsection area (unit mesh) which divided a...
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JP2005269767A |
To use a concrete basic material of a building as a part of a grounding material for low-voltage devices and a discharge path for a lightning surge current, simplify a grounding work, and reduce the total cost of a system.The concrete ba...
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JP2005253028A |
To provide an antenna device that arrests damage caused by the direct attack of thunder and has two-way directivity in order to protect a transmitter/receiver, a coaxial cable, an antenna and the like which are wireless facilities.In a h...
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JP2005237069A |
To obtain a low-grounding resistant grounding device that can serve as a grounded-body grounding conductor member suitable for a grounded body and as a lightning grounding conductor by individually installing the grounded-body grounding ...
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JP2005204447A |
To provide a lightning-receiving unit for corners that is capable of preventing a corner of a building from breaking, by a stroke of lightning through its voltage and current endurance effect on the corners of a building and can be easil...
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JP2005174771A |
To provide a conductive terminal unit suitable for lightning protection terminal unit for a curtain wall which is used in order to protect a high-rise building from damage caused by a lightning sidestroke, when metal supporting structura...
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JP2005142039A |
To obtain a thunder protection structure capable of protecting the protecting object certainly from direct lightning strike.In the thunder protection structure, a first protecting object 12 is arranged in a protection range which is form...
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JP2005117874A |
To provide an airplane-warning light protection net that protects an airplane warning light from lightning.A cubic aluminum frame is formed, by welding four pieces of aluminum rods 1002 which are longer than a side of a square on an alum...
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JP2005093094A |
To provide a grounding position capable of being installed easily and at low cost even in a place where a grounding bar or the like can hardly be poured.The grounding device A is constituted of an excavation hole 2 excavated in ground 3,...
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JP2004311083A |
To provide a lightning steel tower with a thunder cloud sensor equipped with a lifting mechanism, capable of automatically setting the height of the tower in multiple steps as thunder cloud approaches.The thunder cloud detector D is arra...
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JP2004281358A |
To protect human and building in wide range from a lightning strike.A lightning conductor system having a transmission line connected to a lighting conductor, comprises a rope, a buoyancy body, a lightning arrester mount attached to the ...
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JP2004187416A |
To enable cheaper and efficient construction by considering one building in view of the whole thereof, when a countermeasure against a lighting strike accident for a Faraday cage is applied to the building.In this electrically conductive...
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JP2004146124A |
To provide a lightning receiving part which can be simply and surely installed, constructing a lightning protection system capable of compactifying a total construction when the construction is completed, and to provide a connection term...
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JP3519624B2 |
To simply install a conductor section constituting a lightning conductor rapidly onto an envelope such as a covering roof by seam welding firmly, and to sufficiently resist use in an area of high snowfall particularly. The conductor supp...
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JP2004111328A |
To provide a lightning protector in which grounding area of the grounding electrode can be increased easily.This air charge neutralizing device is composed of a lightning conductor 16, a grounding electrode 10 that is electrically couple...
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JP3505044B2 |
To suppress snow on an arcing horn and surely catch flashover from a transmission and distribution wire when abnormal voltage caused by lightning surge arose. In this arrester device, a plurality of suspension insulators 1, 3 are arrange...
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JP3476558B2 |
PURPOSE: To provide a temporarily impedance lowering method for a current route by a simple construction work and execution. CONSTITUTION: Circular current paths 1, 1,... are installed at least in the middle of a current path and electri...
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JP2003317995A |
To provide a member suitable for a lighting rod, having excellent arc resistance and corrosion resistance used as a structural member for the whole lightning rod or the tip of the lightning rod, and to provide the lightning rod using it....
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JP3443619B2 |
To reduce overvoltage load on a lightning proof transformer 9 in lightning stroke in electric facilities which protect the electrical equipment 11 in a structure 12 against lightning strokes by placing the lightning proof transformer 9 i...
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JP2003230219A |
To provide a cross arm insulator mounting bracket that is easy to manufacture, excellent in strength, and capable of achieving further miniaturization.This cross arm insulator mounting bracket is a device that is mounted on the cross arm...
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JP3436344B2 |
To make uniform the potential increase of an earthquake-proof building in the thunderbolt, reduce the potential increase and protect other equipment from faults. An upper structure 2 and a foundation 3 part of an earthquake- proof buildi...
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JP2003219547A |
To provide a lightning protection apparatus that can prevent damages to electrical equipment caused by reverse flow of induced current, when an indirect lightning stroke occurs.A cable 3 of a computer 2 and the protected equipment side o...
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JP2003219548A |
To provide a very simple economical grounding apparatus having a prescribed low ground resistance by joining a large-area contact surface to the side of an existing structural body which has a large-area contact to the ground, and by con...
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JP2003209911A |
To provide a distribution panel device which permits a current limiting breaker kept at OFF to be switched on easily from indoors or the like.A power line 1 and a communication line 2 are respectively connected to the same ground termina...
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JP2003199239A |
To provide a conductive connection method and a conductive connection structure wherein, to prevent accidents or disaster when a building, etc., is struck by lightning, 'Faraday cage' is surely established by an isopotential bonding tech...
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JP3413588B2 |
To completely prevent water coming from inside an earth wire, by spreading hydrophilic one-part polyurethane prepolymer in the coating of the earth wire by foaming pressure caused by reaction between the prepolymer and water and then har...
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JP2003151653A |
To provide a grounding sheet easy to work and high in reliability, for protecting a grounding body buried underground and reducing the grounding resistance.A connection portion of a twisted bare copper wire 1 as a grounding body and a gr...
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JP3406624B2 |
PURPOSE: To prevent at least power failure when thunderbolt surge is, infiltrated, by mounting a lightning protection insulator device corresponding to the power line of a lower phase during power transmission by plural lines, and making...
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JP3404366B2 |
To realize effective insulating measures with high efficiency at a low cost. The maximum voltage of an external insulation path L3 (the path of a ground point P3 to a ground 5 for customers to a metal sheath 3-2 for distribution line or ...
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JP3401469B2 |
To avoid welding in a splice section of a support pipe of a multi-stage type lightning rod at a building site, and to form a mechanical connection. A support pipe joint device comprising a first joint fitting having a pipe to which a low...
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JP3399523B2 |
To provide a method for lightning protection for electric equipment wherein a Faraday cage in a structure housing the electric equipment is stabilized. The electric equipment is provided with a lightning protection apparatus. The lightni...
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JP2003079044A |
To prevent conductor resistance unbalance of an electric wire which becomes a cause of a lightning failure, by embedding a number of electric wires connected in parallel so as to get a target cross sectional area, by arraying a number of...
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JP2003045608A |
To solve such problems in an arrester which is provided at another place within the electric station independently of a structure such as a steel tower, in electric feeder line and electric power line drawn into an electric station via t...
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JP2003032872A |
To provide a copper-clad steel rod for a ground electrode which can reduce a frictional resistance against soil while a lateral vibration phenomenon is avoided.A steel core 9 is cladded with a copper or copper-alloy layer 8. One end of t...
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JP2002320319A |
To provide a protection method against thunder damage which can prevent the breakdown of the lightning arrester of a high structure such as a wind power station, a radio relay station, etc.In this protection method against thunder, the l...
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JP2002315170A |
To protect a metal pipe from dielectric breakdown arising from potential rise due to induced lightning and prevent damage to the metal pipe.An insulating tape 2 is applied to the surface of the metal pipe 1, and a metal shielding layer 3...
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JP2002313511A |
To solve a problem that a bare wire as an electrode is directly contacted with a core wire of an insulated wire and thereby intrusion of ground water into the insulated wire cannot be prevented perfectly in a conventional ground electrod...
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JP2002315185A |
To reduce disaster due to direct hit thunder and to inhibit disaster due to back-flow thunder.Plural overhead ground wires 3a, 3b, 3c, and 3d made of insulating electric wire are arranged near power distribution lines 1a, 1b, and 1c. The...
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JP2002271964A |
To develop an arrester structure of a building which can avoid erroneous operation of gages, burning of substrates and influence on a human body at the timing of lightning by equalizing the potential of all instruments and gages installe...
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JP2002271961A |
To provide an installation method using a deeply embedded independent insulated ground electrode for electrical insulation from the other grounding systems, considering mutual grounding interval of a plurality of ground electrodes and mu...
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JP2002270330A |
To enable to rapidly and surely carry out discrimination of a lightning arrester in which a failure of a characteristic deterioration or the like has been generated.This is a connector 21 removably mounted on the lightning arrester 1 ins...
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JP2002254108A |
To provide copper coated steel stock, especially, a copper coated steel bar for grounding an electrode and the manufacturing method therefor excellent in corrosion resistance since joining characteristics between copper layer and steel c...
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JP2002530038A |
A lightning rod system including both methods and specific types of lightning rod protection apparatus, which address the need for lightning rod safety features to deter impalement and minimize injury when humans inadvertently fall upon ...
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JP2002227757A |
To provide a lightning arrester equipment for a wind turbine capable of eliminating a damage of blade from lightning, making the wind turbine efficiently operate, and greatly reducing maintenance cost.Plural or one electrode plates are a...
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JP3311458B2 |
PURPOSE: To provide the joint structure of a column which is easy to install, facilitates the cost reduction and, further, can be applied to the drop conductor of the arrestor equipment of a building. CONSTITUTION: A first conducting mem...
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JP2002186160A |
To reduce in the weight of an insulated lighting conductor unit, and to reduce the area of an installation space, by arranging an insulating supporter which is light and functions as both conventional insulating insulator and a strut for...
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