70results about How to "With lightning protection function" patented technology

The invention relates to an anti-ice-flashover composite insulator with a lightning protection function, which comprises a mandril (2), and a casing (9) thereof is provided with a first composite umbrella cover (3). The mandril (2) in a cylinder is sleeved with stacked metal oxide valve plates (8) and a spring (7). The lower end of the mandril (2) is provided with a second composite umbrella cover (4). The upper end of the second composite umbrella cover (4) is sleeved with a first strap (11), and the lower end thereof is provided with a second strap (12). A bowl-shaped metal cap (1) and a ball-shaped metal cap (5) are respectively covered on both ends of the mandril (2). In freezing days, the insulator can prevent ice covering and blocking arc serial connection, and greatly reduces the possibility of line trip. The invention has the beneficial effects that: (1) the bearing load for the whole mandril to suspend a transmission conductor is higher; (2) a lightning protection section bears lower voltage; (3) the metal oxide valve plates contact tightly; (4) the lines prevent lightning; and (5) an umbrella skirt string structure insulating outer cover which comprises staggered and laminated large and small umbrella skirts can prevent ice flashover in freezing weather.

The invention discloses an LED street lamp device. The LED street lamp device comprises a lamp pole, a machine body, a support fixedly arranged above the left portion of the machine body and a lamp cap. A base is fixedly arranged at the bottom of the lamp pole. Straight rods are arranged above the left side of the lamp pole. The ends, deviating from the lamp pole, of the straight rods and the right side end face of the machine body are fixedly connected. An inserting groove is formed in the position, below the support, in the machine body. First plugs are arranged in the inserting groove. A first sliding groove is formed in the bottom end face of the right side of the support. A locking part is arranged in the first sliding groove. A first spiral rod which is in thread fit connection with the locking part and stretches towards the left side and the right side is arranged in the first sliding groove. A first sliding cavity is formed in the position, on the right side of the support, in the machine body. A communicating groove is formed between the first sliding cavity and the first sliding groove. A first empty bin is arranged at the position, above the communicating groove, in the machine body. A second containing cavity is formed in the position, above the right side of the first sliding groove, in the support. A second sliding groove penetrating the top wall of the support is formed in the position, above the second containing cavity, in the support. A pushing rod corresponding to the left side end of the communicating groove is arranged on the right side end face of the locking part. A sliding block is connected in the first sliding cavity in a sliding and matched manner. The LED street lamp device is simple in structure, automatic locking and mounting are achieved, and meanwhile the lightning protection function is achieved.

The invention discloses a novel leakage protection socket, which is characterized in that: when a reset button is pressed down, the reset button and a test button are linked; an elastic sheet metal is arranged below the test button, and a test resistor is arranged below the elastic sheet metal; one end of the elastic sheet metal is positioned below the test button, while the other end is connected with a power live wire or a power zero line passing through a differential transformer; one end of the test resistor is positioned below the elastic sheet metal in a hanging way, while the other endis connected with the power zero line of a power input end; when the reset button is in a released state and a reset state, the test resistor and the elastic sheet metal are not contacted; and when the reset button is pressed down, the test resistor and the elastic sheet metal are contacted. When the power input end of the leakage protection socket is connected with a power cord in a wall, the test button is linked when the reset button is pressed, and the test button automatically detects timely whether the leakage protection socket still has a leakage protection function or not and displaysa detection result.

Provided is an intelligent environment-friendly movable public toilet with internal water cycled. The structure of the whole public toilet is composed of faeces conveying pipe system and a biochemical treatment device, a solar power generation and heat collection device is provided to provide energy, and all-weather monitoring on various properties in the movable public toilet is achieved through a network function. Compared with the prior art, an air freshening system technology is adopted; sanitary sewage is recycled, environment-friendly building materials are adopted in the whole toilet, the movable public toilet has the functions of preventing burglary, fire and thunder and provides a convenient, clean and comfortable relieving environment, and the urban landscape of harmony between human and nature is achieved.

The invention provides a lightning-proof outdoor power distribution cabinet. The power distribution cabinet comprises a lightning rod, a rainshed, a cabinet body, a grounding copper wire, hinges, a cabinet door, a lock of the cabinet door and an electrical junction box, wherein the rainshed is arranged in the upper portion of the cabinet body, the lightning rod is arranged in the left upper portion of the cabinet body, the cabinet door is arranged on the cabinet body via the hinges, the lock of the cabinet door is arranged in the right side of the cabinet door, the lower end of the cabinet body is connected with the grounding copper wire, and the electrical junction box is arranged in the cabinet body. Due to arrangement of the lightning projection module, the electrical junction box and the rainshed, the lightning proof effect is good under the condition that an impact grounding resistor of the ground network cannot meet the requirements or is not grounded; the lightning-proof device is integrated with the power distribution device to form the lightning-proof power distribution box with both lightning-proof and power distribution functions; and the sealing performance of the electrical junction box is improved to solve the problems of short circuit or circuit break caused by that water or other impurities enter the outdoor distribution box.

The invention discloses a big data processor with high-efficiency operation in the technical field of processors. The big data processor comprises a case shell, wherein a base is fixed to the bottom of the case shell, the four corners at the bottom of the base are provided with grooves respectively, a pore plate is arranged on an inner edge opening of each groove, a supporting frame is rotationally arranged between a front inner wall and a rear inner wall of each groove through a rotary shaft, a movable wheel is arranged at the bottom of the outer surface of each supporting frame through a cross beam, each supporting frame is connected with the corresponding pore plate through a long bolt, a power connection hole and a micro-fuse are embedded into the left side of the top of the surface ofthe case shell, a temperature sensor is connected with a controller to make a cooling fan and an electrostatic generator work, the cooling fan accelerates air circulation inside the case shell, and an electrostatic dust absorbing net reduces dust which enters an inner cavity of the case shell along with air flow. The device is good in heat dissipation performance, has an anti-thunder function andmeanwhile can be detected and maintained through wireless remote control, and service life is prolonged.

The invention discloses a 220kV anti-icing and lightning-proof composite insulator, the nameplate of which is pasted on the ball socket, the 20R type locking pin is installed inside the ball socket for locking the ball socket and one end of the mandrel, and the ball head is installed on the core On the other end of the rod, the zinc oxide resistor is set on the upper part of the mandrel, the wave spring washer is pressed and installed on the upper end of the zinc oxide resistor, the upper end of the electrode is installed on the wave spring washer, the lower end is installed on the lower end of the zinc oxide resistor, and the connecting sleeve is set on the core. In the middle of the rod, the winding tube, zinc oxide resistor, upper umbrella, lower umbrella, umbrella skirt 1, mandrel, pressure equalizing ring, and umbrella skirt 2 are all arranged outside the mandrel in an orderly manner, and the mechanical strength of the whole product is Beared by the middle mandrel, it is used in heavily ice-covered areas and common minefields. It has the advantages of reasonable structure, good electrode contact, and high mechanical strength of the product, and is easy to popularize and apply.

The invention relates to the technical field of wind power generation equipment, in particular to a liftable wind power generation device which comprises a cabin and a tower, a through hole is vertically formed in the middle of the cabin, the tower penetrates through the through hole, the cabin and the tower are in sliding connection in the vertical direction, a rotor hub with blades is arranged at the front end of the cabin, and the rotor hub is connected with the wind power generation device. The front end of the rotor hub is provided with a monitoring device, the rear end of the rotor hub is connected with a gearbox, the gearbox is connected with a generator, the cabin is connected with the tower through a horizontal rotating mechanism and a vertical moving mechanism, the cabin is suspended on the tower through a rope, a winding device is arranged in the tower, and the winding device is connected with the generator. The winding device drags the rope, and the monitoring device is connected into a control system of the wind power generation device. By arranging the monitoring device, the state in front of the wind power generation device is monitored in real time, and then according to different conditions, the cabin is controlled to ascend and descend along the tower through the winding device arranged in the tower and the traction rope.

The invention relates to a financial automatic teller machine (ATM) power source and a special lightning protection device for a communication system. The special lightning protection device for the communication system comprises a power source input end, protection circuits and a power source output end; the protection circuits include a first-stage protection circuit and a second-stage protection circuit which are in parallel connection; the first-stage protection circuit includes discharge tubes and varistors which are in parallel connection; the second-stage protection circuit includes diodes and a TVS which are in parallel connection, and is connected in series with one or a plurality of resistors; and the protection circuits are arranged among the live line, null line and ground line of a financial automatic teller machine power source system. According to the lightning protection device of the invention, power source surge protection and signal surge protection are integrated, simplification of installation and application is realized; a plurality of groups of lightning protection devices are installed in parallel, so that power source surge protection level is decreased to safe voltage, and therefore, a lightning protection effect can be still achieved under a situation that field grounding is difficult or even impossible.

The invention discloses a cable TV network power supply device which comprises a standard control circuit, a main 220 / 60V transformer, an output control circuit, a detection and interlocking control circuit, an interactive voltage detection current, a current detection circuit, a shaping and amplifying circuit, a three-phase automatic switching circuit, a three-phase sampling circuit and a time delay control circuit, wherein the three-phase automatic switching circuit is respectively connected with a three-phase power supply, the main 220 / 60V transformer and the standard control circuit, and the standard control circuit is provided with four CD4081 digital integrated circuits for finishing four logic processing functions with a gate circuit. The self-locking and mutual-locking functions of the power supply device and the self-locking and mutual-locking function in the multi-power supply combined power supply system are realized through the combination of all the unit circuits, the reliability of power supply of the cable TV network is enhanced, the invention has the functions of lightning protection and surging prevention, the volume and the cost are reduced by one half, the weight is reduced by two thirds, and the invention is the ideal the power supply device for the present cable TV network.

The invention discloses a lightning protection insulator for 10KV tension rods. The lightning protection insulator comprises an insulator body, an arc striking ring and a discharge ring. One end of the insulator body is connected with the arc striking ring, and the other end of the insulator body is connected with the discharge ring. The lightning protection insulator is low in cost, convenient and flexible to construct and high in mechanical performance and has lightning protection function.

The invention creatively provides an adjustable LED street lamp. The adjustable LED street lamp comprises a lamp pole, a lamp arm, a lampshade, an LED lamp group mounted in the lampshade and a control device, as well as an operation and control mechanism and an anti-thundering module which are arranged in the lamp pole, wherein the lampshade is fixed on the lamp pole through the lamp arm, and the lamp pole is a hollow cylinder; a sliding track is arranged at the upper part on the outer side of the lamp pole, an alarm lamp is arranged at the lower part on the outer side of the lamp pole, a lifting mechanism is mounted on the sliding track, the operation and control mechanism comprises a lifting transmission chain, a lifting motor, a steering motor, and an operation and control panel, the lifting motor is connected with the lifting mechanism through the lifting transmission chain, and the steering motor is connected with the lampshade. The adjustable LED street lamp provided by the invention has a simple structure, can be opened and closed automatically and has an anti-thundering function and good safety. In the event of an accident, the street lamp can be lowered for illumination, thereby facilitating the handling of the accident.

The invention discloses a composite insulator device with a built-in piezo-resistance unit. The composite insulator device comprises the piezo-resistance unit, an insulating pillar, enhanced blowout gap units and installation hardware; the piezo-resistance unit comprises a piezo-resistance subunit core, an insulating core rod and an insulating sheath; each enhanced blowout gap unit comprises a blowout cavity, an insulated support member and a gap electrode; and the enhanced blowout gap units are fixedly installed in the two ends of the insulating pillar or arranged uniformly along the axial direction of the insulating pillar. A lightning arrester is integrated with an insulator, the rated voltage of the piezo-resistance unit is reduced by using the high arc extinguishing capability of theenhanced blowout gap unit, and the device is mini, light and cheap; and the device is assembled while leaving the factory, onsite part adjustment and assembly are not needed, it is not required to strip an insulating layer of a lead when the device is connected with the insulating lead, and installation and construction are simple convenient.

The invention discloses a lightning protection insulator for 10KV tension rods. The lightning protection insulator comprises an insulator body, an arc striking ring and a discharge ring. One end of the insulator body is connected with the arc striking ring, and the other end of the insulator body is connected with the discharge ring. The lightning protection insulator is low in cost, convenient and flexible to construct and high in mechanical performance and has lightning protection function.

The invention provides a photoelectric conversion access device, which is arranged between an optical fiber and a coaxial cable, and comprises a photoelectric conversion unit, a high-frequency coaxial network unit, a low-frequency coaxial network unit, a high-frequency signal mixing unit, a low-frequency signal mixing unit and a frequency adjusting unit; the photoelectric conversion unit is connected with the optical fiber, the high-frequency signal mixing unit is connected with the photoelectric conversion unit through the high-frequency coaxial network unit, and the high-frequency signal mixing unit is electrically connected with the coaxial cable; and the low-frequency coaxial network unit is connected with the photoelectric conversion unit and is connected with the low-frequency signal mixing unit through the frequency adjusting unit, and the low-frequency signal mixing unit is connected with the coaxial cable. The photoelectric conversion access device has a photoelectric conversion function and a frequency adjusting function and is unnecessary to be connected with an external photoelectric conversion device, so the device is simplified.

The invention discloses an environment self-adaptive ultrasonic wind measurement system. The system comprises a wind direction and wind speed measurement module, a central processing module, a self-recovery module and a lightning protection module; the wind direction and wind speed measurement module is used for sequentially transmitting ultrasonic signals to obtain calibration flight time, transmitting the ultrasonic signals to obtain measurement flight time and sending the measurement flight time to the central processing module; the central processing module is used for starting the wind direction and wind speed measurement module at regular time, controlling the wind direction and wind speed measurement module to measure the wind speed and the wind direction after self-calibration, calculating the wind speed and the wind direction angle, and outputting thewind speed and the wind direction angle according to a fixed format; the central processing module is also used for controlling the self-recovery module to work to meet the temperature and humidity conditions of the test; the self-recovery module is used for measuring environment temperature, humidity and water vapor indexes, inputting the indexes into the central processing module, and starting a heating mode to enable the temperature, humidity and water vapor indexes of the wind direction and wind speed measurement module to meet test conditions; and the lightning protection module is used for preventing lightning damage.

This invention relates to a lightning wall panel socket including a panel base and an outer panel characterizing that the center of said outer panel has a core including an internal panel and a lightning circuit board and a socket plug piece, in which, lightning elements are set on the CB connected between the protected line end and the earth of said plug piece. This invented socket can be used in plugging power supply, TV signals, phones and computer networks.

The invention provides an energy-saving desk lamp, and belongs to an illumination lamp. The energy-saving desk lamp comprises a lamp cover, a long lamp tube, a base, a knob switch, a lamp rod, LED (Light Emitting Diode) lamps, rotating lamp holders, a controller, a lightning protection device, a storage battery device and a wire coiling device, wherein the long lamp tube is arranged on the lamp cover, the knob switch is arranged on the base, the lamp rod is connected between the lamp cover and the base, the LED lamps are arranged on the rotating lamp holders, the rotating lamp holders are respectively arranged at the left end and the right end of the lamp cover, the controller, the lightning protection device and the storage battery device are arranged on the lamp cover, and the wire coiling device is arranged in the base; each rotating lamp holder comprises a lamp holder, a rotating disk and a knob, the rotating disk is provided with a fixing hole, and the knob comprises a rotating rod, a fixing rod and a cross rod. When an illumination range needs to be enlarged, only angles of the LED lamps need to be regulated by regulating the knobs on the rotating lamp holders; when the energy-saving desk lamp needs to be moved, a plug has no need to be pulled out, the energy-saving desk lamp can be placed in a position in need of illumination just by pulling out a power wire, the usable range is large, and the energy-saving desk lamp can also be used for emergency illumination.

A distributed-circuit intermediate protection integrated device comprises an incoming line terminal, an incoming line side lightening arrester, a fuse protector, a multifunctional power meter, a current transformer, a current terminal row, a residual current operated circuit-breaker, a common-compensation capacitor switch, a self-healing power capacitor, an outgoing line side lightening arrester and an outgoing line terminal which are all installed in a stainless steel box in sequence. The distribution-circuit intermediate protection integrated device is installed on a low-voltage distribution circuit between distribution unit-area overall protection and household protection, the fault point can be isolated once ground fault occurs to a certain branch circuit, failure outage to other circuits never occurs, and power supply continuity and reliability of residential users is guaranteed; the device has a lightning protection function, an electric leakage protection function, and meter, voltage, current and power factor measurement and reactive local compensation functions; overlapping investment can be avoided, and the distribution-circuit intermediate protection integrated device is timesaving, laborsaving, safe and high in operation efficiency.

The invention discloses a light-duty full medium self-supporting optical cable, comprising an outer sheath and a cable core; the inner wall of the outer sheath is provided with a cable-opening pedant; the cable core consists of three units which are twisted in a SZ manner; the three units include an optical unit and two non-mental reinforcement units or two optical units and a non-mental unit reinforcement unit; and the optical unit is internally provided with optical fibers and fiber paste which is filled in the optical unit and is used for fixing the optical fibers. The invention adopts three units which are twisted in a SZ manner to form a cable core, reduces the diameter of the optical fiber, simplifies optical cable structure and benefits the miniaturization of the structure of the optical cable. The optical cable has one or two non-mental reinforcement units, which is light in weight, strong in tensile strength, small in ductility, guarantees the tensile strength, provides convenience to coating, and has a lightening resistance function. The cable-opening can bear a certain tensile force and relatively high temperature, is not easy to nap and can easily strip the outer sheath of the optical cable and provide convenience to construction.

The invention discloses a novel LED (Light-Emitting Diode) street lamp device. The novel LED street lamp device comprises a lamp post, a machine body, a bracket fixedly arranged at the upper left part of the machine body, and a lamp holder; a base is fixedly arranged at the bottom of the lamp post; a straight rod is arranged above the left side of the lamp post; one end, deviated from the lamp post, of the straight rod is fixedly connected with the end surface of the right side of the machine body; an inserting groove is formed in the machine body below the bracket; the left outer side of the inserting groove is connected with a closing part in a matching manner; a first inserting pin is arranged in the inserting groove; a first sliding connecting groove is formed in the end surface of the bottom of the right side of the bracket; a locking and fixing part is arranged in the first sliding connecting groove; a first spiral rod which is connected with spiral stripes of the locking and fixing part in a matching manner and elongates to the left side and the right side is arranged in the first sliding connecting groove; a first sliding connecting cavity is formed in the machine body in the right side of the bracket; a communicating groove is formed between the first sliding connecting cavity and the first sliding connecting groove; a first hollow cabin is formed in the machine body above the communicating groove; a second accommodating cavity is formed in the bracket above the right side of the first sliding connecting groove; a second sliding connecting groove which penetrates through the top wall of the bracket is formed in the bracket above the second accommodating cavity; a pushing rod which is arranged in a position corresponding to the left side end of the communicating groove is arranged on the right side end surface of the locking and fixing part; the interior of the first sliding connecting cavity is connected with a sliding block in a sliding and matching manner. The novel LED street lamp device is simple in structure, can lock the assembling automatically, and further has a lightning protecting function.

The invention relates to a lightning-protection reflection type high-strength dual-waveband directional antenna. The lightning-protection reflection type high-strength dual-waveband directional antenna comprises a metallic reflection cavity, wherein microstrip plates are arranged in the metallic reflection cavity; a multiplexer is arranged on the microstrip plates; a coaxial cable is connected onto a main circuit of the multiplexer; a first radiation oscillator and a second radiation oscillator are respectively connected onto a first branch and a second branch of the multiplexer; a solid antenna housing covers on the first radiation oscillator and the second radiation oscillator; the solid antenna housing is provided with a lightning-protection reflection oscillator; the lightning-protection reflection oscillator is located at the same side of the first radiation oscillator and the second radiation oscillator; the first radiation oscillator and the second radiation oscillator adopt hollow sail-shaped unipolar metal oscillators; the hollow sail-shaped unipolar metal oscillators consist of first metallic straight strips, second metallic straight strips and arc-shaped metallic strips; the first metallic straight strips, the second metallic straight strips and the arc-shaped metallic strips are connected with one another in an end-to-end manner; angles formed by the first metallic straight strips, the second metallic straight strips and the arc-shaped metallic strips are acute angles; and metal blocks are arranged or directly welded on the hollow sail-shaped unipolar metal oscillators so as to form an inner-and-outer embattlement type structure.

The present invention relates to an advertising device and is a multifunctional advertising tower. The multifunctional advertising tower consists of support of steel structure, reciprocating multi-picture advertisement exhibitor, automatically lifted lighting device, hidden lighting device, electronic lightning strike preventer and control box. It features reciprocating multi-picture advertisement exhibitor fixed around the maintenance platform of the support, the hidden lighting device inside the reciprocating multi-picture advertisement exhibitor, the flange connection between the support and each of the two said lighting device, the strike preventer connected to the cover plate of the automatically lifted lighting device and the control box on the maintenance platform. The present invention has both advertising and lighting functions.

The invention discloses an intelligent and environment-friendly mobile public toilet with internal water circulation. The structure of the whole mobile public toilet is composed of two parts, namely an excrement conveying pipe system and a biochemical treatment device, and is matched with a solar power generation and heat collection device to provide energy, and all-weather monitoring on various performances in the mobile public toilet is realized by utilizing a network function. Compared with the prior art, an air freshening system technology is adopted, domestic sewage is recycled, the wholetoilet is made of green and environment-friendly building materials, the functions of theft prevention, fire prevention and lightning prevention are achieved, a convenient, clean and comfortable urination environment is provided, and an urban landscape where people harmoniously coincide with the nature is achieved.

The invention discloses a coating with a lightning protection function for transformer production. The coating is prepared from the following components: waterborne polymer resin, tackifying resin emulsion, vulcanized silicone rubber particles, silica powder, acrylic resin, a wetting dispersant, a defoaming agent, a thickening agent, a toughening agent, a carbon nano-material, a modifier, an anti-seepage agent, a preservative, mica powder and nano diatomite powder. The water-based polymer resin is used as a raw material, so that the coating is low in cost and good in waterproofness; and the tackifying resin emulsion is added, so that the bonding strength of the coating can be ensured. The coating has the effects of lightning protection, static electricity resistance, water seepage prevention, corrosion resistance, aging resistance, good insulation effect, wear resistance, firmness and strong weather resistance, has good adhesiveness and sealing performance, is acid-resistant and high-temperature-resistant, can meet the maintenance requirements of external equipment of various power systems, and prolongs the service life.

The invention discloses a safe power distribution cabinet. The power distribution cabinet comprises a box body, a cover plate, a cabinet door, a lightning conductor, a data board, a door lock, hinges,a grounding device, a pressing ring and a rain cover, wherein the top end of the cover plate of the power distribution cabinet is provided with the lightning conductor, and the lightning conductor iselectrically connected with the grounding device at the bottom of one side of the box body, so that the power distribution cabinet is enabled to have a thunder and lightning protection function; thecover plate is made to be bamboo-hat-shaped, rainwater can be conveniently drained, the pressing ring is arranged at the periphery of the cover plate and connected with the rain cover, and rainwater is prevented from permeating into the power distribution cabinet in all directions, so that the power distribution cabinet is suitable for outdoor work; a display screen is adopted for displaying the current intensity, the working condition in the power distribution cabinet can be display more visually, and indicator lights indicate whether a failure occurs in the power distribution cabinet or not,so that the working condition of the power distribution cabinet can be judged by a maintainer without opening the power distribution cabinet, and convenience is provided to users.

The invention relates to a bird repelling device with a lightning-protection function. The bird repelling device comprises a base for being matched with the steel angle end face of a transmission frame, a supporting rod connected with the upper end of the base, and steel bands connected with the supporting rod. A bolt for fixing the base is arranged at the lower end of the base, the supporting rod is provided with a cavity, and a plurality of through holes are formed in the supporting rod. The inner ends of the steel bands are connected with the supporting rod through the through holes, a spiral structure is arranged in the middle of each steel band, tip ends are arranged at the outer ends of each steel band, and the surfaces of the steel bands are coated with a layer of bird repelling paint. The bird repelling device is simple in structure, convenient to mount, low in cost and good in bird repelling effect, has light reflecting and vibrating sound producing features, can achieve corrosion prevention, and has the lightning-protection function.

The invention relates to a DC combiner box, which belongs to the technical field of combiner devices for photovoltaic power generation. The DC combiner box comprises a box body. The box body is internally provided with combiner branches of which each is connected with an incoming end, a current sensor, a fuse, a combiner bus-bar, a circuit breaker and an outgoing end in turn. A monitoring device is arranged in the box body for being in collection connection with the current sensor. The current sensor of the DC combiner box is directly connected to the incoming ends of the combiner branches, sothat the current sensor can detect a current from an external input cable of the DC combiner box directly without going through the fuses, and the measurement is more accurate and reliable. Moreover,because the current sensor is located between the incoming ends and the fuses, a combiner box manufacturer does not need to connect the fuse by a wire, pass the wire through the current sensor and then connect the wire to the combiner bus-bar in order to connect the combiner branches and can directly connect the current sensor, the fuses and the combiner bus-bars in turn, the installation is convenient, and the efficiency of installation is improved.

The invention relates to an electrical ballast which comprises: a dimming circuit, a microcontroller and a sweep frequency ignition circuit. The dimming circuit and the sweep frequency ignition circuit are respectively connected to the microcontroller. The invention provides the electrical ballast which can adjust equivalence brightness, possess a substantial energy saving effect, realize the sweep frequency ignition and can prolong a service life of a lamp. The electrical ballast is safe and reliable.