43results about "Connection to earth" patented technology

An electric vehicle charger according to an embodiment of the present invention comprises an electric vehicle charging controller comprising an inlet comprising: an earthing pin coupled to a coupler and configured to connect a first earthing line connected to a first earthing power source in an electric vehicle power supply device and a second earthing line connected to a second earthing power source in an electric vehicle; a first signal pin coupled to the coupler and configured to connect a first signal line in the electric vehicle power supply device and a first signal line in the electric vehicle; and a second signal pin coupled to the coupler and configured to connect a second signal line in the electric vehicle power supply device and a second signal line in the electric vehicle, and a sensing unit connected to the electric vehicle power supply device through a third signal line and a fourth signal line so as to receive a third signal and a fourth signal. The inlet comprises a signal unit disposed between the second signal line and the third signal line, and configured to generate a second signal and then transmit same to the electric vehicle charging controller. The sensing unit comprises: a first processing unit electrically connected to the electric vehicle power supply device through the third signal line and the fourth signal line, and configured to receive the third signal and the fourth signal from the electric vehicle power supply device; a second processing unit for receiving the third signal and the fourth signal that a first sensing unit has received, and then transmitting same to a control unit; and an insulation unit for electrically isolating the first processing unit and the second processing unit from each other.

The invention relates to the technical field of line lightning protection, in particular to an overhead transmission line lightning arrester and an installation method.The overhead transmission line lightning arrester comprises two bases used for being installed on a cross arm, and an n-shaped plate is clamped between the two bases and fixedly arranged through bolts; a first lightning arrester and a second lightning arrester which are used for lightning protection of the power transmission line are installed on the n-shaped plate, connecting plates are installed at the tops of the first lightning arrester and the second lightning arrester, and a first fixing clamp, a second fixing clamp and a wire clamp which are used for being installed on the line are installed on the connecting plates; an overhead line is arranged among the first fixing clamp, the second fixing clamp and the wire clamp in a penetrating mode, the first lightning arrester is located on the two sides of the n-shaped plate, the second lightning arrester is located in the middle of the n-shaped plate, the first lightning arrester and the second lightning arrester are connected with on-line monitoring devices on the n-shaped plate, and the lower ends of the on-line monitoring devices are connected with discharge counters. The device has the advantages of being compact in structure, convenient to replace parts and capable of stably operating for a long time in an extreme environment.

A lightning protection device of a tethered balloon communication system, comprising: a lightning protection net, a shielding layer, a protection circuit; the lightning protection net wraps the tethered balloon; the shielding layer is installed outside the communication module and the communication line of the tethered balloon and is connected with the lightning protection net; the protection circuit is connected inside the communication module and is used for protecting common mode and differential mode interference caused by lightning; the lightning protection net arranged outside the tethered balloon, the shielding layer and the protection circuit arranged inside the communication module are designed according to the characteristics of the communication system in the tethered balloon, the communication module and the communication line are treated in all directions, the damage caused by lightning to the communication module of the tethered balloon and the radiation and conduction interference in the lightning process are effectively reduced, the normal work of the communication module in the lightning process is ensured, and the accuracy and reliability of data transmission are ensured.

A live-line working, fully insulated, separable gapless surge arrester device comprises: a piercing, detachable insulated clamp, a high-voltage lead, a lightweight insulating cavity, an upper contact, an upper insulated waterproof piston ring, the arrester body, a lower insulated waterproof piston ring, an insulating sheath, a contact ring, a contact piece fixing ring, a contact piece, an elastic tension spring, a metal bracket, an insulating bracket, a disconnector connection bracket, a disconnector, a disconnector itself, and a lead wire connection terminal. It is mainly used for overvoltage protection of power distribution lines. The insulated operating rod allows for live-line installation and removal of the arrester body and disconnector, improving installation and maintenance efficiency. The disconnector temporarily isolates power frequency current and clearly indicates the fault point, reducing losses caused by power outages due to grounding short circuits. The disconnector connection bracket facilitates live-line separation and replacement of the disconnector. The device is fully insulated, improving the insulation process of the line. The piercing, detachable insulated clamp facilitates live-line installation and removal, eliminating the need to strip the insulation from the conductor, thus improving installation efficiency and line insulation.

The invention provides a shock insulation support and thunder and lightning protection integrated structure, and relates to the technical field of constructional engineering, the shock insulation support and thunder and lightning protection integrated structure comprises a lower connecting steel plate, the upper surface of the lower connecting steel plate is fixedly connected with a shock absorption laminated layer, the center of the shock absorption laminated layer is provided with a trigger mechanism, and the upper surface of the shock absorption laminated layer is fixedly connected with a lower supporting plate; a connecting mechanism is arranged at the edge of the upper surface of the lower supporting plate, a rotating shaft is rotationally connected to the center of the lower supporting plate, an inner rotating plate is fixedly connected to the middle of the outer surface of the rotating shaft, the vibration amplitude is accurately recognized through a trigger mechanism, the connecting mechanism is linked to unlock a clamping assembly, and the relative position of the upper supporting plate and the lower supporting plate can be flexibly adjusted; and the inner rotating plate is driven to turn to the stress side and is matched with the supporting mechanism to form transverse and longitudinal double reinforced supporting, and the effects that the building transverse movement amount can be effectively limited, support dislocation is avoided, and the structural safety under high-intensity earthquakes is remarkably improved are achieved.

A lightning protection conductor clamp (10) for fixing a lightning protection or earthing conductor (12) to a reinforcing material (14) is shown. The lightning protection conductor clamp (10) comprises two clamping devices (16), each having a base (18) via which the two clamping devices (16) are connected to each other in a connection plane (E). Furthermore, each clamping device (16) has a receptacle (20) formed by a retaining leg (22), a transition section, and a spring leg (26). The receptacles (20) each have a receiving opening (28) bounded by the respective retaining leg (22) and the spring leg (26), with the receiving openings (28) each facing the connection plane (E). A lightning protection conductor clamp (110) for attaching at least one lightning protection or earthing conductor (112) to an equipotential bonding bar is also shown.

This invention provides a device for suppressing lightning flashover tripping of insulators in transmission lines, relating to the field of lightning protection technology for transmission lines. It includes a high-frequency filter, a low-impedance channel, and a phase change material (PCM) electric field energy absorber. The high-frequency filter is installed on the side of the overhead lightning protection line near the tower to block the lightning current generated by lightning strikes. The low-impedance channel is connected to the input end of the PCM electric field energy absorber via a coaxial cable to guide the lightning current to the PCM electric field energy absorber. The PCM electric field energy absorber is installed on the tower near the ground, and its output end is connected to the tower and grounded to absorb the electric field energy of the lightning current. This device can effectively reduce the tower potential and the amplitude of the lightning current, reducing the probability of flashover of insulators and transmission line tripping caused by lightning strikes in the power system, and improving the operational reliability of the power system.

A composite panel comprising a perforated metal foil for lightning strike protection, the composite panel comprising: a plurality of carbon layers; a perforated metal foil comprising a number of apertures and directly fastened to the plurality of carbon layers; and a protective layer made of a resin reinforced with fibers, the protective layer being fastened to the metal foil, wherein the perforated metal foil is embedded into the protective layer through its apertures, a free surface of the protective layer forms a top side of the composite panel, a thickness of the protective layer between the top side of the composite panel and the perforated metal foil is at least 15 micrometers, and a thickness of the perforated metal foil is not more than 30 micrometers, the plurality of apertures defines in total an open area of not more than 40% of the surface area, and a maximum distance between two opposite points on the aperture periphery is equal to or less than 3 mm.

The invention discloses an insulation installation device applied to a lightning arrester box body, and relates to the technical field of box type lightning arresters, and the insulation installation device comprises an external box body which is fixedly connected with offshore wind power equipment; the bracket is fixedly arranged at the inner bottom end of the outer box body, a guide groove is formed in the top end of the bracket, a convex knot is arranged at the upper end of the bracket, and a transverse inserting groove is formed in the convex knot. An air rod in the lock pin assembly is driven to act through external environment temperature change, thermal expansion and cold contraction of a metal piece are automatically compensated, dynamic adjustment and long-acting maintenance of locking force are achieved, the problem of connection loosening caused by temperature difference is fundamentally solved, and the locking effect is greatly improved through insertion alignment and vertical supporting and fixing of a single rotating hexagonal table. The mounting and dismounting process is greatly simplified, the operation and maintenance efficiency is improved, the device is particularly suitable for offshore high-altitude operation, meanwhile, a double mechanical fixing mode of locking and supporting is adopted, three-dimensional constraint is formed, and the overall rigidity and vibration resistance are remarkably superior to those of a traditional single-point fixing mode.

A holding device for a lightning rod mounting assembly comprises a base body (15) with an intermediate section (19) and two side sections (18) extending laterally to the intermediate section (19) and each forming an angle with the intermediate section (19). The holding device (9) also has a mounting element comprising two opposing mounting bodies (16) for contacting the profile side faces of a building roof, in particular a trapezoidal profile roof. Each mounting body (16) has at least one mounting body adhesive element (47) for adhesively fixing the holding device (9) to the profile side faces. In the assembled state of the holding device (9), each mounting body (16) is adjustably coupled to a side section (18). Furthermore, the holding device (9) comprises at least one connecting element (17) for connecting to a lightning rod.

The application relates to the technical field of engineering machinery, in particular to a door machine lightning protection device, machinery and a use method. The door machine lightning protection device comprises a rotating rod structure, an umbrella net structure and a conductive structure. The rotating rod structure comprises a rotating rod which is arranged in an insulating sleeve of the door machine. The umbrella net structure comprises a guide sleeve which is threadedly connected with the rotating rod and arranged on the outer periphery of the rotating rod. The guide sleeve is provided with conductive vertical rods which are arranged at intervals. The conductive vertical rods are surrounded by conductive horizontal rings which are arranged at intervals. The conductive horizontal rings have different radii, so that the umbrella net structure has different layer heights. The conductive structure comprises a conductive wire and a grounding carbon rod. One end of the conductive wire is connected with the rotating rod, and the other end is connected with the grounding carbon rod. In the lightning protection state, the conductive vertical rods are extended out of the insulating sleeve, the conductive horizontal rings are expanded into umbrella shapes along the circumferential direction of the conductive vertical rods, and the conductive horizontal rings and the conductive vertical rods form umbrella shapes to shield the door machine from lightning. The lightning is transmitted to the conductive wire through the rotating rod, and the conductive wire is transmitted to the ground through the grounding carbon rod. The application solves the problem that the lightning rod cannot cover the door machine and influences the protection effect.

This invention provides a wireless grounding device and method for photovoltaic modules, including multiple horizontally arranged aluminum alloy rails, multiple longitudinally inclined aluminum alloy main beams, multiple vertically arranged aluminum alloy legs, and steel grounding spikes. The top surface of the aluminum alloy rails is connected to the bottom surface of the photovoltaic module frame via spiked grounding plates, which pierce the oxide film of the photovoltaic module frame and the aluminum alloy rails. The top surface of the aluminum alloy main beams is connected to the bottom surface of the aluminum alloy rails via spiked rail clamping blocks, which pierce the oxide film of the aluminum alloy rails and the aluminum alloy main beams. Self-tapping screws pierce the oxide film between the adapter and the aluminum alloy main beams. The top surface of the steel grounding spikes is connected to the bottom surface of the aluminum alloy legs via bases. The bottom end of the steel grounding spikes is inserted into the ground. This wireless grounding device allows the photovoltaic module to quickly conduct current to the ground surface without additional wires when struck by lightning, providing good conductivity and a high safety factor.

The invention relates to a railway transportation line device for crossing a high-voltage transmission line and a use method, and the railway transportation line device comprises a railway transportation line device body with a bridge (2), an outer supporting column (7) corresponding to the railway transportation line device body, and a housing assembly (8) arranged on the outer supporting column (7). A railway transportation line is arranged on the lower portion of a high-voltage power transmission line, a housing assembly (8) is supported through an outer supporting column (7), a U-shaped groove plate body is placed on a railway transportation line device body through the housing assembly (8), and the railway transportation line located on the high-voltage power transmission line is located in a tunnel body isolated from a cable. The technical problem that bridge piers and box girders are used on the lower portion of a high-voltage transmission line to support a track line is solved, and therefore the service life of the railway transportation line device is prolonged.

The invention provides a thunder and lightning protection device for photoelectric navigation equipment, the photoelectric navigation equipment comprises an outboard device and an in-cabin device, the outboard device and the in-cabin device are connected through a connecting cable, and the thunder and lightning protection device comprises an outboard device thunder and lightning suppression module and an in-cabin device thunder and lightning protection module; the outboard equipment lightning suppression module is installed inside the outboard equipment, the in-cabin equipment lightning protection module is connected to the connecting cable in series, and the in-cabin equipment lightning protection module is grounded through an independent current loop. The outboard equipment lightning suppression module serves as a first defense line for lightning protection, is installed in outboard equipment (such as a photoelectric sensor, an antenna, an external detector and the like which are exposed in a complex electromagnetic environment), and preferentially suppresses lightning indirect effects (such as inductive lightning surge and electrostatic discharge) entering from outboard cable coupling. And surge energy is prevented from being directly transmitted into the connecting cable.

The invention provides a distribution wire fixing device with a lightning protection function, and describes various embodiments related to the distribution wire fixing device, the fixing device has the lightning protection function and comprises a rotating shell, a sliding shell, a first rotating connecting part, a second rotating connecting part, a rotating shell, a first rotating connecting part and a second rotating connecting part, therefore, the distribution line is prevented from being directly influenced by lightning stroke, and the lightning rod is placed at a distance according to rotation or sliding movement. The distribution line can be prevented from being influenced by abnormal voltage generated by lightning stroke of the lightning rod, and the distribution line can be prevented from being damaged by electric arc generated by the lightning rod due to the lightning stroke. In addition, various different embodiments can be provided.

The invention discloses a multi-channel airborne lightning indirect effect protector and a manufacturing method thereof, and relates to the technical field of electromagnetic protection. The at least two mutually independent lightning protection channels are arranged in the shell, the lightning protection channels are respectively used for protecting different types of target signals, and each lightning protection channel comprises a signal input end, a lightning protection function circuit and a signal output end; the lightning protection function circuit adopts different circuit topologies and device types according to the physical characteristics of a target signal protected by the lightning protection function circuit; the multi-channel lightning protection device can provide targeted and efficient multi-channel lightning protection for various different types of signals.

The application provides an isolation support and lightning protection integrated structure, and relates to the technical field of building engineering. The upper surface of the lower connecting steel plate is fixedly connected with a shock absorption laminated layer, the center of the shock absorption laminated layer is provided with a triggering mechanism, the upper surface of the shock absorption laminated layer is fixedly connected with a lower support plate, the edge of the upper surface of the lower support plate is provided with a connecting mechanism, the center of the lower support plate is rotationally connected with a rotating shaft, the middle position of the outer surface of the rotating shaft is fixedly connected with an inner rotating plate, the triggering mechanism accurately identifies the vibration amplitude, the linkage connecting mechanism unlocks the clamping assembly, the upper and lower support plates can flexibly adjust the relative position, the inner rotating plate is driven to turn to the stress side, the support mechanism is matched to form double reinforced support in the horizontal direction and the vertical direction, the building transverse displacement can be effectively limited, the support dislocation can be avoided, and the structural safety under high intensity earthquake is significantly improved.

The invention belongs to the technical field of lightning arrester installation, particularly relates to a novel lightning arrester and a working method thereof, and provides the following scheme aiming at the problem that the whole device is not firm after installation due to inconvenient punching when the current lightning arrester is installed: the lightning arrester comprises an installation chassis, and stepped holes are respectively formed in the positions, close to four corners, of the upper surface of the installation chassis; a strip-shaped supporting column is fixed to the middle of the upper surface of the mounting base plate, an anti-disengaging clamping block is fixed to the top end of the strip-shaped supporting column, the length and the width of the anti-disengaging clamping block are both larger than the size of the top end of the strip-shaped supporting column, a groove-shaped clamping piece is slidably connected to the outer wall of the top end of the anti-disengaging clamping block in a clamped mode, and arc-shaped hinge grooves are formed in the positions, close to the edges of the two sides, of the top end of the groove-shaped clamping piece. Before installation, only the two U-shaped double-thread screws which are fixed together need to be fixed to the top end of the reinforcing mesh, the four threaded ends need to be exposed during pouring, then the installation chassis and the groove-shaped clamping piece are simply installed after concrete is solidified, and installation is convenient, fast and stable.

One example includes a method for generating a grounding solution for lightning strikes. The method includes determining a geographic location of a lightning-sensitive electrical device and receiving soil resistivity data of soil at the geographic location and a surrounding geographic region. The method also includes implementing a grounding solution algorithm. The algorithm includes converting the soil resistivity data to resistance values, calculating a quantity of grounding rods for the grounding solution based on the resistance values relative to a predefined ideal resistance value, and calculating a safety distance of mounting the grounding rods with respect to the lightning-sensitive electrical device based on the resistance values. The method further includes generating installation instructions for implementing the grounding solution by mounting the grounding rods in the geographic region based on the calculated quantity of grounding rods and the calculated safety distance.

The invention discloses a lightning arrester system and method with fault isolation and state notification functions, and the system comprises a lightning arrester body, the high-voltage end of the lightning arrester body is connected with an external line, and the low-voltage end of the lightning arrester body is fixed on a second installation support; the other end of the insulating pillar is connected with the mounting bracket I; the separation unit is connected in series between the low-voltage end of the lightning arrester body and a grounding path, and is internally provided with a thermal explosion pipe; the trigger inverted rod is linked with the separation unit through a connection grounding wire and is rotatably mounted on the mounting bracket I; the signal unit is installed on the first installation support and communicates with the trigger inverted rod through a trigger signal line. When the leakage current is abnormally increased due to the fault of the lightning arrester body, the thermal explosion tube explodes to disconnect the separation unit, and the fault is isolated; and meanwhile, the trigger inverted rod is pulled to turn over, and the trigger signal unit sends out a remote notification containing position information. The problem that a traditional lightning arrester cannot be accurately isolated and positioned after a fault occurs can be solved, the function of the traditional lightning arrester is expanded through systematic design, and rapid fault isolation and positioning are achieved.

The invention is suitable for the technical field of lightning protection equipment, and provides a lightning protection energy storage device for a building, which comprises a mounting seat, a photovoltaic power generation panel and a lightning protection main needle, a supporting column is fixedly mounted at the top of the mounting base, a claw frame is fixedly mounted at the top end of the supporting column, a supporting disc is fixedly mounted at the top of the claw frame, a supporting cylinder is fixedly embedded in the circle center of the supporting disc, a supporting base is fixedly mounted at the top end of the supporting cylinder, and the supporting base is made of a conductive material. The supporting base is rotationally sleeved with an assembling cylinder, the assembling cylinder is fixedly sleeved with an assembling circular ring, and the supporting disc, the supporting cylinder, the assembling cylinder and the assembling circular ring are all made of insulating materials. According to the lightning protection energy storage device for the building, provided by the scheme, three-in-one arrangement of lightning protection, photovoltaic and energy storage is completed, the roof area does not need to be additionally occupied, and the defects that a traditional lightning rod is single in function and wastes space are partially overcome.

The subject of the invention is a lightning rod with a lightning protection system isolated from the protected facility, equipped with a power supply and control unit monitoring its head, which is characterized by the lightning rod head (1) consisting of a metal cylindrical housing (2) with an upper bottom (4), detachably connected to the blade (6), inside which its symmetry axis, there is an initiating system (7) entwined with the upper helical part (8) of the optical fiber (9.9'), electrically connected to this blade (6), and with the other end through the spark gap (15) electrically connected with the upper surface of the metal profile connector (17) and mechanically - inseparably with the sleeve shoulder (18) with the axial hole (29) of this connector with two through holes (27 and 28) made in it opposite the axial hole (29), in which both lower ends (8') of the spiral part (8) of the optical fiber (9, 9') are placed, and its further parts through the hole in the metal the connecting sleeve (35) and the through hole (39) of its bottom (37) and through the hole of the two-piece mast (42) and the through hole (56) of the metal tubular element (45) of this mast go out so that one end of the optical fiber (9, 9') is located opposite the LED light transmitter (57) of the power supply, control and monitoring unit (58) and the other end of this optical fiber is opposite the LED light receiver (59), while the insulated end (64) is connected to the connecting sleeve (35) of the insulated high voltage wire (65), the lower end of which is embedded in the ground (67) and connected to earthing (68) .

The embodiment of the invention provides a fan blade lightning protection system and method, and the system comprises a high-conductivity composite material layer which is disposed on the surface of a fan blade and is used for forming a lightning current conductive path; the current distribution optimization layer is connected with the high-conductivity composite material layer and used for regulating and controlling distribution of lightning current on the surface of the blade; the dynamic electromagnetic shielding module is arranged at the front edge of the fan blade and used for sensing a lightning electromagnetic field and dynamically adjusting the electromagnetic shielding effectiveness; the heat energy self-adaptive diffusion layer is arranged in the fan blade and is used for absorbing and diffusing heat generated when the lightning current passes through; the intelligent grounding system is electrically connected with the high-conductivity composite material layer and the fan main body structure and is used for guiding lightning current into the ground; wherein the dynamic electromagnetic shielding module and the intelligent grounding system can respond to the intensity or frequency change of lightning current to carry out self-adaptive adjustment.

The application discloses a lightning protection device for transformers, which is used for lightning protection of transformers and improves the installation convenience and applicability of the lightning protection device. The application comprises a base, a fixing ring, a central collecting rod, a reactor, a grounding body, an exciter and a reflector. The central collecting rod is fixed on the base through a vertical rod. The grounding body is connected with the ground and is used for connecting the central collecting rod and the reflector with the ground. The central collecting rod and the reflector are in an equipotential state. The reactor is used for generating a potential difference with the exciter and discharging at the tip of the central collecting rod. The reactor, the exciter and the reflector are fixed on the base. The fixing ring is arranged on both sides of the base, is sleeved on a telegraph pole and is used for fixing the base. The base is provided with sliding rails. The fixing ring is slidably connected with the sliding rails through a sliding assembly, so that the fixing rings located at both ends of the base can move close to or away from each other on the sliding rails.

This invention discloses a lightning protection device for overhead transmission lines. Its structure includes a fixed base, a rotating base, an intermediate limiting base, and a lightning rod. The fixed base contains a grounding wire, and the lightning rod is mounted on the fixed base via the rotating base. The intermediate limiting base is located on the fixed base between two lightning rods, and it contacts and engages with the lightning rods. The intermediate limiting base includes a limiting body that engages with a driving mechanism. The limiting body contains two or more fixing heads. When the slider moves along the slider guide rail, the fixing heads are pushed out towards the opening of the movable slot. The fixing heads and the slots form a fixed structure, preventing the lightning rod from rotating or swinging under external force, thus ensuring the lightning rod remains vertical.

This lightning conduction device comprises a protruding needle 11, intermediate conductors 12, a lowest-section conductor 13, and switch units 20. The protruding needle 11, N intermediate conductors 12, and the grounded lowest-section conductor 13 are connected in the sky direction with N+1 switch units 20 interposed therebetween. By turning all of the switch units 20 ON, the protruding needle 11 and all of the intermediate conductors 12 are instantly grounded.

The invention discloses a multistage buffering lightning protection circuit device and a mobile terminal, and relates to the technical field of circuit lightning protection. The device specifically comprises a trapping device, a voltage protection module, a first-stage buffer circuit and a second-stage buffer circuit, the voltage protection module is electrically connected with the second end of the trapping device, and the voltage protection module is used for suppressing transient overvoltage of thunderstorm cloud; the first-stage buffer circuit is electrically connected with the voltage protection module, and the first-stage buffer circuit buffers and stores the lightning current as first-stage current; and the second-stage buffer circuit is electrically connected with the first-stage buffer circuit, converts and stores the first-stage current into second-stage current, and outputs the second-stage current to a connectable terminal device. The lightning guide line is arranged in a strong electric field area, and lightning energy is buffered and absorbed step by step by using a hierarchical circuit topology, so that equipment is prevented from being punctured by instant overvoltage, and active safety protection is realized.

The invention relates to an earth screen facility for an interval base station, the core of the facility is a unified earth screen assembly, and the earth screen assembly is composed of a horizontal loop line earth body buried underground and a plurality of vertical earth bodies vertically connected with the horizontal loop line earth body at equal intervals. The horizontal loop line grounding body surrounds the base station to form a common installation area, so that a base station machine room, an iron tower and at least one power box transformer substation device are all located in the area. On the basis, independent lightning protection assemblies are arranged for the base station machine room, the iron tower and the power box transformer substation equipment respectively, all the lightning protection assemblies are electrically connected with the unified horizontal loop line grounding body, and therefore grounding of all the equipment is integrated into a common grounding system. The integrated design can effectively balance the potential among the devices, obviously reduces the counterattack risk caused by uneven ground potential during lightning stroke, simplifies the construction, and improves the overall safety and economical efficiency of the system.

The application discloses a lightning-protection type outdoor switch cabinet and relates to the field of switch cabinets, which solves the problem that the existing switch cabinet is difficult to overhaul a lightning rod, and comprises a switch cabinet body and a mounting plate mounted on the outer side of the switch cabinet body, the inner side of the mounting plate is provided with a mounting box, the inner side of the mounting box is provided with a lightning rod, the top of the switch cabinet body and the top of the mounting box are both provided with a moving perforation, the bottom of the lightning rod is provided with a lead wire, and one end of the lead wire is provided with a grounding net; further comprising a position adjusting mechanism for moving and storing the lightning rod, which is mounted on the inner side of the mounting box; through the position adjusting mechanism, the lightning rod can be stored in the switch cabinet body, which is convenient for the overhaul of the staff and does not need to climb, and the lightning rod can be moved up to the top of the switch cabinet body through the moving perforation on the mounting box and the switch cabinet body, so that the protection of the switch cabinet body by the lightning rod is ensured, and the effect of improving the safety of the overhaul of the lightning rod is achieved.

The application discloses a kind of extra-high voltage lightning arrester, including multiple lightning arrester elements of series stacking, the lightning arrester element at top is provided with first wiring terminal, the lightning arrester element at bottom is provided with second wiring terminal;The second wiring terminal is led out by the side of the connecting flange of the lower end of the lightning arrester element at bottom, and is insulated from the connecting flange, the second wiring terminal is used for electrical connection with monitoring device and ground terminal;The lightning arrester element includes composite outer sleeve and resistance disc column arranged inside the composite outer sleeve, the lightning arrester element is provided with first end cover at both ends, and the outer diameter of the composite outer sleeve of the lightning arrester element at bottom is greater than the outer diameter of the composite outer sleeve of the lightning arrester element at top.The application can be suitable for high altitude, high seismic intensity and high pollution grade area, with strong anti-seismic ability, high mechanical strength and light weight.