The discharge counter for lightning arrester is a high-voltage electrical apparatus used to monitor the discharge action of lightning arrester. Its structure consists of nonlinear resistance, electromagnetic counter and some electronic components. Under normal operating voltage, the leakage current flowing through the counter is very small, and the counter does not act.
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normal use conditionsAmbient air temperature: upper limit +40°C lower limit -25°CAltitude below 2000mRelative humidity: the daily average value is not greater than 95%, the monthly average value is not greater than 90%The surrounding air should be free from obvious pollution such as corrosive or flammable gas, water vapor, etc. No frequent violent vibration
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Super second generation low light level image intensifiers: NT-3, cnt-4 and dnt-6 have greatly improved in signal-to-noise ratio, transmission and resolution, which makes them have higher spectral response in a wide wavelength range, and can obtain better contrast for various observation scenes, whether in jungle, desert, coast, water surface It has excellent observation effect under any background, such as snow. Dnt-6 image intensifier is equipped with power supply with automatic shutter characteristics, and can automatically adjust the gain.
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The turret assembly of situational awareness system carries two photoelectric sensors, thermal imager and TV camera, for image acquisition. It also integrates GPS and electronic compass, which can solve the target and local position. It can ensure the stable scanning of circumferential view through the step-by-step scanning stability platform, realize panoramic imaging, and then communicate with the display and control terminal through the wireless or optical fiber transmission module inside the turret.
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Designed and supplied specifically for "Off Road Use", these Site trailers are all fitted with some form of brake system, hand parking facility and basic vehicle lights. Although not built to conform with EEC braking/lighting directives certain Non EEC countries have operated these units on the highway under the proviso that Towing speeds indicated must not be exceeded at full rated payload.
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The coupling between the glass lead rod and the fixture adopts the most advanced crimping technology, with beautiful appearance, small volume, light weight, not easy to break, bending, high torsional strength, strong explosion-proof, and extremely convenient transportation and installation.Type ofinsulator acc.RussianstandardUltimateMechanicalStrength ofinsulators,KN, not lessDiameterof glassshed (D),mmSpacing,mmCreepagedistance,mmWeight, kgVoltage withstand, kV, not lessImpulseFrequency50 Hz, wetRadiointerference levelSHS-10D12,51301602801,35754040SHS-20G131401904001,71355050
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Hand held low light level observation mirror is a portable photoelectric observation mirror. The instrument is used to observe targets at night and under low illumination conditions.
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Using the existing image intensifier technology, the antimony cesium photocathode UV image intensifier is successfully developed, with UV transparent quartz glass as the input window and double proximity focusing image intensifier. Solar blind UV imaging detection module is an imaging detection product for solar blind UV band based on UV image intensifier manufacturing technology, combined with optical design technology and electronic signal processing technology. It is mainly composed of solar blind UV coupling module, solar blind UV optical module and signal processing module.
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use environment a. The altitude does not exceed 1000 meters; b. The surrounding air environment has no conductive dust and no corrosive, flammable and explosive gases, etc.; c. Wind pressure does not exceed 100Pa (equivalent to wind speed 34m/S); d. The earthquake intensity does not exceed magnitude 8; e. The annual temperature difference ratio is within ±40°C.
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•Note:1,(DEBI Equivalent background illumination, measured after up to 2 minutes stabilization in the dark with the operational voltage applied.2,Signal to noise ratio : measured in the circle(diameter:0.2), equivalent system frequency.3,On the area of 1mm² .illumination flux 0.05lm,lasting 60 seconds .4,Measured for 0.3ms both parallel and perpendicular to the axis separately with power supply applied, totally for 6 times.
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wire galloping has brought immeasurable economic losses and social impacts to our country. The composite interphase spacer is a kind of line that can effectively prevent the galloping of line conductors to keep the line safe, and effectively reduce the space of the transmission corridor. It is listed as a compact high-voltage transmission line 2220kV and below in the guidelines for galloping prevention and control of the State Grid Corporation of China.
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CMOS hand-held night vision instrument is a portable photoelectric night vision instrument, which can observe the target under all-weather conditions.
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The multifunctional handheld thermal imager has the functions of infrared, visible light observation, GPS positioning, orientation and laser ranging, and can realize the observation of targets in day and night and under adverse weather conditions
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The multifunctional handheld thermal imager has the functions of infrared, visible light observation, GPS positioning, orientation and laser ranging, and can realize the observation of targets in day and night and under adverse weather conditions
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installation and use 1. The fuse allows horizontal or vertical installation 2. When the data of the melt tube does not match the voltage and rated current of the line, it must not be connected to the line for use. 3.
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Due to electromagnetic induction, the metal shielding layer (or metal sheath) of long line high-voltage single core power cables generates induced voltage, which leads to aging of insulation and reduction of insulation grade, resulting in reduced cable life. Once the induced voltage exceeds the sheath breakdown voltage, the outer sheath is broken down, forming a multi-point grounding fault of single core cables.
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Hjk-m series monitoring thermal imager can be used in industrial production detection, chemical industry and precision electronics. Equipped with this series of thermal image products, it is like a special eye to break the dark cover and uncover all kinds of camouflage.This series of monitoring thermal imager adopts modular and standardized design, which can be quickly and easily installed on various vehicles and ships currently equipped.
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Very popular MW cooled detector in the world market. Can work with C308, C330 or C363 stirling cooler.
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