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JP4253510B2 |
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JP2009050121A |
To obtain a grounding-wire extraction fastener that meets regulations of electrical appliance and material safety law for a material of an outdoor exposed piping member, can be easily and surely inserted into a grounding-wire draw-in dev...
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JP2008312311A |
To provide a sidewall lightning arrester system of buildings, which has a high degree of installation and design freedom and facilitates installation and maintenance thereof.In the sidewall lighting arrester system of buildings, lightnin...
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JP4188285B2 |
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JP2008278708A |
To simplify construction and reduce a cost, by confirming a construction method of a down-conductor while evaluating an electrical resistance value of a main reinforcing steel.A first target electrical resistance value R1 around a serial...
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JP2008267930A |
To solve a problem wherein a conduit route cannot be appropriately designed due to difficulty in specifying, in a conduit route design stage, the dispersed state of lightning surge current generated in a building and a place where propag...
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JP4176529B2 |
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JP4172983B2 |
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JP2008259306A |
To provide a ground current damage preventer which prevents damage occurrence such as the fault, malfunction, etc. of the object of prevention such as an electric/electronic apparatus, etc. due to various ground currents.An annular condu...
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JP4149299B2 |
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JP2008535448A |
The present invention relates to a lightning current emitting device for electrically connecting a capture device and a grounding device of an external lightning arrester, an electric conductor is embedded in an insulating coating, and t...
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JP4141231B2 |
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JP4127655B2 |
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JP4121482B2 |
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JP2008166104A |
To provide a grounding electrode capable of preventing a lightning damage due to lightning surge current by lowering further than a conventional one a grounding impedance of such as a building and various facility which is an object of l...
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JP4116912B2 |
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JP2008152927A |
To solve the problem that there are many cases that a desired ground resistance value cannot be obtained since a rod like ground body constituting a conventional ground device has a small contact area with earth and accordingly earth res...
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JP4103259B2 |
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JP4083110B2 |
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JP4078181B2 |
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JP4054700B2 |
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JP4050847B2 |
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JP4030335B2 |
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JP3958699B2 |
To provide a telescopic terminal easy in installation and further compact in size. The L-shaped telescopic terminal comprises a thunder-receiving part 10 for the telescopic terminal having a lip groove shape cross section on the surface ...
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JP3954946B2 |
To shorten time to execute an earthing device, and to reduce its execution cost. An earth unit Eu having an earth wire 1 coated with a conductive coated body 2, and a conductive coating member 3 composed of a carbon powder particle body ...
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JP3947504B2 |
To provide a hardware to be fitted to a thunder receiving section, which does not let the thunder receiving section come off by working force from outside. The hardware to be attached to a thunder receiving section is equipped with a mou...
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JP3916607B2 |
To provide a draining terminal for conductor connection easily attachable without projecting from a building frame or a finished surface of a building, and capable of enhancing attaching accuracy. This draining terminal 15 for conductor ...
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JP3131042U |
To install a structure such as a foundation of a building in a grounding member of a lightning protection wiring system for a building for connecting a ground wire from a lightning arrester and an electric device to a reinforcing bar of ...
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JP2007103043A |
To provide an auxiliary tool for a grounding block and a grounding block, capable of obtaining stable grounding characteristics by arranging so as to obtain a required grounding resistance, even when digging out the grounding block, such...
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JP3907477B2 |
The energy generation plant has a device for continuous discharge of electrostatic charge from each rotor blade (5) of the wind turbine rotor, provided by a series ohmic resistance and an inductance, connected between the rotor blade and...
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JP2007068262A |
To prevent the electric breakdown of an electric facility within a structure struck by lightning, and to see that lightning damage may not extend to other structures.This excessive voltage prevention device 10 comprises a grounding elect...
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JP3888846B2 |
To provide a lightning-suppression device, which can reduce the number of lightning striking a lightning rod and can suppress lightning surges which penetrates into electrical equipment. A rod-shaped insulator 4 is provided at a required...
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JP3889015B2 |
To provide a lightning protection facility for a seismic isolation building, having a seismic isolation unit for controlling earthquakes or vibrations due to winds from thunderbolt. The lightning facility in the seismic isolation buildin...
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JP2007028768A |
To provide a lightning conductor break preventing apparatus that is easily installed and prevents a break in a lightning conductor when pulling force is produced in the lightning conductor due to so-called negative friction (negative fri...
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JP2007006583A |
To provide an equipotential bonding (single-point concentrated ground) construction method which electrically connects a metallic tank/metallic piping and foundational reinforcement which are used in a plant or a combustible combinat, al...
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JP2007005194A |
To provide a side face lightning arrester system which can be installed on a side face part of a building easily, and to provide an installation method of the side face lightning arrester system for installing the side face lightning arr...
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JP2006353046A |
To provide a lightning surge protector for protecting electrical apparatus connected to an electric wire, even if a lightning strike affects the electric wire.The lightning surge protector has a primary coil, connected to the electric wi...
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JP2006353069A |
To provide a grounding wire protector that is easy to install and that facilitates protection of a grounding wire near the ground level portion of an electric pole.The grounding wire protector 1 protects a synthetic resin pipe 3 and a co...
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JP2006344402A |
To surely earth a reinforcing bar by simple work by solving a problem where, in a lightning conductor facility of a reinforced concrete building, welding connection is conventionally executed to a connection structure for connecting a wi...
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JP3844949B2 |
To eliminate large tension and a space for placement from a lightning arrester. A pair of yokes 17, 18 is hung from a steel frame 4. The yoke 18 is connected to a base 10 through a spring turning buckle 7. A group of insulators 20 and a ...
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JP2006304528A |
To make a sash function rationally as a thunder receiver of a rotation sphere method, and to constitute the thunder receiving portion of the rotation sphere method rationally in a sidewall having a metallic portion other than a sash.In t...
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JP2006296163A |
To provide a small and inexpensive lightning arrester without installing a metal fitting for making tips of a T-shape coaxial connecting pluge and a coaxial cable of λ/4 into a short circuit.One end of a coaxial cable 32 for antenna con...
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JP2006288126A |
To provide a lightning protection wiring system for a building that facilitates grounding, has a grounding area as large as possible, and can easily obtain a low grounding resistance value in the lightning protection wiring system for pr...
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JP3125247U |
To effectively prevent a lightning surge current from entering an antenna support column by being easily attached between an antenna support column provided in a structure such as an iron tower and a support of the antenna support column...
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JP2006219966A |
To solve a problem wherein there is no countermeasure effect on thunderbolt in a conventional tent which is a countermeasure tent only for preventing rain and sunlight.Since thunder is transmitted through metal, particularly a conductive...
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JP3811691B2 |
To provide a supporting structure of a pole for a lightning rod having high wind pressure resistance, requiring less installation space, and manufacturable at low cost. In this supporting structure of the pole for the lightning rod, bulk...
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JP2006149036A |
To propose a protecting tool for easily attaching a grounding wire and having a simple constitution.The grounding wire protecting tool 30 comprises a protection cylinder 30A and a ground indicator 30B inserted into its upper section. A s...
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JP2006134799A |
To effectively reduce grounding resistance by a simple construction method.(1) This grounding resistance reducing agent is characteristically formed of a water-dispersible and/or water-soluble water-absorbing material. (2) The grounding ...
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JP2006136153A |
To provide a paravane system of electric equipment which provides a means for protecting a thunder resistant transformer from insulation breakdown without exchanging a power supply draw-in board.In an electric facility 1 in which an annu...
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JP3768484B2 |
To provide a line-to-ground fault accident detection system and a line-to-ground fault accident detection method for power transmission line which can easily locate the line-to-ground fault accident steel tower or can specify the directi...
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