Guide to Buy Power Cable Fault Location in NOYAFA

Guide to Buy Power Cable Fault Location in NOYAFA

2021-11-11
NOYAFA
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The Power cable fault location, as the main contributor to the financial growth of SHENZHEN NOYAFA ELECTRONIC CO.,LIMITED, is highly recognized in the market. Its production technique is a combination of industry knowhow and professional knowledge. This helps greatly in improving the production efficiency, reducing the production cost, and ensuring the production quality. Of course, its performance and application are also guaranteed. This has been certified by authorities and proven by end users already. NOYAFA may be expected to influence a new generation with our highly innovative ideas and modern design concepts. And we own a highly professional R&D engineer team who has done a lot of work to support our progressional science and technology innovation, which is the main reason that our NOYAFA branded products have taken precedence in the buying trend and that they are very popular in the industry now.Having developed for years, we have established a full set of service system. At Best Cable Tester Supplier in China _ Noyafa, we guarantee the products to come with varied styles and specifications, the goods to be delivered on time, and professional after-sales service to be offered.
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Power Cable Fault Location Method
Power Cable Fault Location Method
Fault location method of power cable: Aiming at the problem that it is more difficult to determine the fault location of buried power cable than overhead line, this paper selects a representative example of fault location process of 10 kV cable in case of high resistance fault, and introduces the method of locating and locating the fault point by using secondary pulse method according to the fault nature. For the high resistance fault during cable operation, first consult the relevant data of the cable and master the detailed information of the cable; Use multimeter and insulation resistance meter to judge the cable fault type, and determine the corresponding test method according to the fault type; Use the fault tester to test the length of the cable, check whether the test results are consistent with the data, and preliminarily determine the distance of the fault point; Finally, the secondary pulse method is used to accurately locate the fault point, find out the fault point, peel off the cable and find out the cause of the cable fault, so as to take corresponding preventive measures. This method is easy to master, especially for short-distance faults, the test waveform is easier to analyze, and the fault distance can be determined quickly, which makes the cable test more efficient and the fixed-point positioning time shorter. Power cable faults are complex and diverse, which can be divided into open faults and closed faults according to fault surface phenomena; According to the grounding phenomenon, it is divided into grounding fault, phase to phase fault and mixed fault; According to the fault location, it is divided into joint fault and cable body fault; According to the nature of resistance, it is divided into broken line fault, mixed line fault and mixed fault. Among them, mixed line fault is divided into low resistance fault, high resistance fault and flashover fault. 1. Fault detection methods for different cable faults, the common detection methods include low voltage pulse method, pulse current method, secondary pulse method, bridge method, pulse voltage method, etc. [3]. This paper only introduces the three commonly used detection methods. 2. Low voltage pulse method low voltage pulse method is suitable for detecting low resistance fault (short circuit fault with fault resistance less than 200 & omega;) and open circuit fault. It can also be used to measure the length of cable and the propagation speed of electromagnetic wave in cable, and distinguish the middle head, T-joint and terminal head of cable. 3. Pulse current method pulse current method generally includes impulse flash method and direct flash method. The linear current coupler is used to collect the current traveling wave signal in the cable and generate the fault test waveform, so as to judge the fault condition and measure the distance between fault points through the waveform. The direct flash method is used to detect flashover breakdown faults, that is, the resistance at the fault point is very high, and flashover breakdown faults will occur when the voltage is raised to a certain value with high-voltage test equipment. The impulse flashover method is also suitable for testing most flashover faults. Because the waveform of the direct flashover method is relatively simple and it is easy to obtain more accurate results, the direct flashover method should be used as much as possible. 4. Secondary pulse method with the cooperation of high voltage signal generator and secondary pulse signal coupler, the secondary pulse method can be used to measure the fault distance of high resistance and flashover faults. The waveform measured by this method is simpler and easy to identify.
Analysis on Fault Location Mode of Power Cable
Analysis on Fault Location Mode of Power Cable
Cable faults also occur in the process of cable laying. Due to different cable laying methods, the difficulty of cable fault location increases gradually. Among them, the positioning of bridge, tunnel and groove is relatively simple, and the direct buried positioning is relatively difficult. Generally, a special cable fault location device (also known as cable fault tester) is used, which can be located in dozens of minutes, Special faults often take 4-5 days or even longer to locate. Now let's analyze the fault location mode of power cable. When using echo method to locate power cable fault, sometimes by transferring fault phase and wiring mode, complex fault will often be transformed into simple fault to quickly determine fault location. It is of great significance for the power supply user department to win time for the emergency repair of on-site lines. Low voltage power cables are generally multi-core cables. When faults occur in continuous use after laying, they generally show two core and multi-core phase to phase or phase to ground short circuit faults. Sometimes when it is detected that the fault waveform collected by one core is not ideal, it can be considered to convert the wiring to other fault cores for fault waveform detection, which often has unexpected effects, The collected and detected waveforms will become more typical and regular, so the specific location of cable fault point can be determined quickly. During the long-term on-site measurement of cable customers, it is found that the fault of small section copper core directly buried power cable (35mm2 and below) and aluminum core cable may be accompanied by short circuit and wire breakage at the same time. During on-site detection, converting short-circuit fault into broken line fault measurement according to the different fault nature of each fault core will often double everything with half the effort. For the medium voltage direct buried power cable with extruded armor as the inner lining, the fault is mostly caused by external mechanical damage. When the insulation core fails, the inner lining may have been damaged. When the cable insulation fault is special and it is difficult to collect the waveform with a professional cable fault tester, the acoustic method can be considered, When the high voltage pulse is directly applied between the steel strip and copper shielding layer of the cable, it will often be fixed quickly. In the field measurement process, we also found that when using the acoustic method to locate the fault point of low-voltage cable. When the high-voltage line and ground wire are connected between the bad phase and the metal shield or armor, due to the low resistance metal connection state of the insulation resistance of the two, the sound is very small, so the probe can not be used to listen to the fixed point, and the effect is not ideal. Through the actual listening side on the site for many times, it is found that the distance between the discharge ball gaps is appropriately increased. At the same time, if the high voltage and grounding wire are connected between the two faulty phases, the discharge sound will become louder and the fault point will be determined quickly.
A Good Guide of Cable Continuity Testers How to Choose
A Good Guide of Cable Continuity Testers How to Choose
You are ready to start shopping now that you know a little more about what is involved in selecting a good voltage tester. Below are details of the best voltage testers on the market from trusted brands that manufacture high quality electrical tools. Trusted manufacturers in the power tool industry specialize in making electrical tools for professionals, and their products are top notch, with many professionals using gauges that they have purchased for decades.To help you find the best network cable tester for your use I have compiled a list of test products that work. I came across the Elegiant Network Cable Tester while working on establishing a LAN connection for a local company. With my extensive experience as an electrician, I can say that this is the best tool for testing cable connections.During the test, make sure you remove the cable from the computer, modem and router. Network cable testers are great for checking cable continuity and ensuring that the signal gets through. Klein Tools VDV501-823 and V DV Scout (r) Pro-2 test kits test voice (RJ11-12) and data (RJ45) via video-to-F connectors and coaxial connections.Platinum Tools TCB360K1 Cable Prowler (tm) Pro Test Kit - Full color cable length gauge with the ability to determine connection status, connectivity and POE detection. I love this type of cable tester because it provides accurate and accurate measurements of the integrity of cable connections. Make sure your cable and network connections are in top shape with this product.Network cable testers are sensitive products that are exposed to various extreme elements, so I suggest getting a tester with a longer warranty. A cable tester checks the electrical connection between signal and cable and confirms things like the wires at the end of the cable. With the HOSA CBT 500 you can test your cable gigging quickly and easily.Selecting, selecting and purchasing a suitable network cable tester can be a complicated and challenging task. In this article, a demanding effort is made to show you how you can test the continuity of circuits and how a good continuity tester will handle your situation. For example, suppose you are looking for a good Ethernet cable tester or an Ethernet cable speedometer.Continuity checks are indispensable for cable installation, cable marking, troubleshooting in the circuit and polarity testing. I have written this conclusion so that people can begin to make up their minds after reading this article. Here's a look at the best recommendations for the best continuity testers on the market.A continuity tester is an electrical test device that determines whether an electrical path has been established between two points where an electrical circuit can be produced [1]. The circuit is tested by activating and connecting the device. A voltage tester or plug analyzer detects the presence of electrical voltage.Voltage testers and socket analyzers indicate to which socket a device is connected. They are used for cables, wires, circuit breakers, lights, sockets and switches. A socket tester is the size of an electrical plug and works with any plug or socket.A fast, acoustic alarm test uses a digital multimeter to determine whether a circuit or line is complete or defective. A Fluke T6 1000 Pro electric tester with multimeter and field sensor not only detects the voltage, but also measures the voltage when disconnected from the outlet. During the sliding test of the fork wire, the tester reports the condition of the wire.The Fuke T6 1000 Pro electric tester also has other common settings that you would expect from a multimeter, including AC / DC resistance and Amperage measurements. One leads to the circuit breaker and fuse box, and the other conducts the current to other devices in the circuit. Using a multimeter, you can see whether the white or black cable is in the inverted socket and whether the earth cable inserted into the box is connected to the socket.When the receiver passes the correct circuit breaker, it emits a noise or light. To determine how hot the cable is, turn off the power, disconnect the socket and place a cap on the cable, usually one of the black ones. An electrician knows that with an electrical tester in his arsenal of tools, you never have to worry about getting a shock.It's the tester you want when you're constantly working with cables and circuits. If you work with coaxial cables, get a special tester, whether you are using a VDV512 or 007. Just like James Bond, they can spy on the cables and help you identify and label the right ones.
Matters Needing Attention During Cable Fault Tester Test
Matters Needing Attention During Cable Fault Tester Test
The cable fault tester is used to test the open circuit, short circuit, grounding, low resistance, high resistance flashover and high resistance leakage faults of power cables, as well as the open circuit and short circuit fault test cables of coaxial communication cables and local telephones. You can also test cable path, burial depth and radio wave velocity measurement, verify cable length, etc., and establish cable files for daily maintenance management. The cable fault tester uses the time domain reflection principle to send a series of electrical pulses to the tested cable, receives the reflected pulses caused by the change of cable impedance, and then represents them according to the propagation speed of the cable. The characteristic inflection points of the electric wave and two reflected waves in the cable. Time, the distance from the fault point to the test end can be measured. Precautions when using: 1. During the pulse method test, please pay attention to get rid of all equipment in the office and measure on the outside line. 2. When using the flashover method for testing, be sure to set the trigger working mode switch to the "flashover" position. 3. When using direct flash method or flash method for testing, please pay attention to personal safety and equipment safety. Be sure to connect the ground wire. 4. After the flashover test, cut off the power supply, unplug the connecting line between the instrument and the high-voltage test equipment, and then release the charge stored in the high-voltage capacitor and cable. During discharge, current limiting resistor R shall be added to limit the discharge current to discharge slowly. After the voltage on the capacitor decreases, the resistance in the discharge circuit is directly zero. Equipment or personal accident. 5. During the direct flash test, be sure to monitor the leakage current of the fault. If the current increases suddenly and there is no fault flashover, immediately reduce the test voltage and use the flash test. The smoothness and power transmission of the cable fault tester system depend on the normal operation of the cable line. Once the line is blocked, communication and power supply will be interrupted. If the fault can not be found and eliminated in time, it will cause huge economic losses and adverse social impact. Therefore, maintenance personnel should pay attention to ensure the normal operation of cable fault tester during work.
What Are the Precautions for High Voltage Test
What Are the Precautions for High Voltage Test
1. The first type of work ticket shall be filled in for high voltage test. Fill in a work ticket when an electrical connection part has maintenance and test at the same time. However, before the test, the permission of the person in charge of maintenance shall be obtained. After the work ticket for high voltage test is issued in the same electrical connection part, it is prohibited to issue the second work ticket. If the disconnection point between the pressurizing part and the maintenance part has enough safety distance according to the test voltage, and there is a short circuit on the other side, the series resonance can be tested on one side of the disconnection point, and the other side can continue to work, but at this time, a "stop, high voltage danger!" sign shall be hung at the disconnection point, and a special person shall be assigned to monitor it;2. There shall be no less than two persons for high-voltage test, and the person in charge of the test shall be an experienced person. Before the test, the person in charge of the test shall arrange the safety precautions in the test in detail for all test personnel;3. If the equipment connector needs to be disconnected due to the test, it shall be marked before disassembly and checked after connection;4. The metal shell of the test device shall be reliably grounded, the high-voltage Lead shall be shortened as far as possible and firmly supported with insulating materials when necessary. The power switch of the test device shall make the double knife switch obviously disconnected. In order to prevent false closing and switching, an insulating cover can be added on the knife edge. There shall be two series power switches in the low-voltage circuit of the test device, and an overload automatic switching device shall be installed;5. A barrier or fence shall be installed on the test site, a "stop, high voltage danger!" sign shall be hung outward, and someone shall be assigned to guard it. When both ends of the tested equipment are not in the same place, someone shall be assigned to guard the other point;6. Before pressurization, it must be carefully checked that the test wiring meter, the magnification, the zero position of the voltage regulator and the starting state of the instrument are correct. Inform relevant personnel to leave the tested equipment and obtain the permission of the person in charge before pressurization. There shall be monitoring and singing during pressurization. The staff of high voltage test shall concentrate on all pressurization and shall not chat with others, Be alert to abnormal phenomena at any time. The operator shall stand on the insulating pad;7. When changing the wiring or after the test, first disconnect the test power supply, discharge and short-circuit the high-voltage part of the booster equipment to the ground;8. The tested equipment of the large fuse without ground wire shall be discharged first and then tested. During the high voltage DC test, the equipment shall be discharged to the ground several times and short circuited to ground at the end of each paragraph or end;9. At the end of the test, the tester shall remove the self installed grounding short circuit, inspect the tested equipment and clean the site;
Basic Knowledge of Cable Installation
Basic Knowledge of Cable Installation
Whether the cable is installed correctly or not is directly related to our personal safety, so it is very important to learn the correct cable installation method. First of all, we need to understand the precautions for cable installation: first, when the mining cable is placed in parallel with the heating pipeline, it shall be connected with a distance of 2m, and when interleaved, it shall be connected with a distance of 0.5m. Second, when the cable is placed in parallel or interleaved with other pipelines, it shall be connected with a distance of 0.5m. 3、 When the cable is directly buried, the direct burial depth of 1-35kV cable shall not be less than 0.7m. IV. when the cables of 10kV and below are placed in parallel, the clear distance between each other shall not be less than 0.1M, 10-35kV shall not be less than 0.25m, and the distance during interleaving shall not be less than 0.5m. V. the minimum bending radius of the cable shall not be less than 15d for multi-core cable and 20d for single core cable (D is the outer diameter of the cable). 6、 Discussion on 6kV and above cables. A. When placing the cable terminal, the semi-conductive barrier layer must be stripped off. The insulation shall not be damaged during operation. Knife marks and the environment with high and low resistance shall be prevented. If necessary, it shall be polished with sandpaper; The end of the barrier shall be flat, and the graphite layer (carbon particles) shall be broken and cleaned. B. The copper barrier and steel armor at the end of plastic insulated cable must be well grounded, and this criterion should also be observed for short routes to prevent electromotive force at the end of steel armor during three-phase unbalanced operation, even ignition and burning of sheath. Tinned braided copper wire shall be adopted for grounding outgoing line. Soldering iron shall be used for soldering when it is adjacent to cable copper strip, and blowtorch shall not be used for sealing welding to avoid burning insulation. C. The three-phase copper barrier shall be connected with the ground wire respectively. The detailed barrier ground wire and steel armor ground wire shall be led out separately and insulated from each other. The position of the welding ground wire shall be as low as possible. 7、 Fundamental requirements for cable terminal and center discussion: A. excellent conductor connection; b. The insulation is reliable. It is recommended to adopt radiation crosslinked heat shrinkable silicone rubber insulation material; c. Excellent sealing; d. Sufficient machine strength can comply with various operation conditions. 8、 The cable end must be waterproof and corroded by other corrosive materials to prevent breakdown caused by aging of insulation layer caused by water tree. 9、 Crane or forklift must be used for cable loading and unloading to prevent horizontal transportation and placement. Cable car must be used for large cable placement to avoid external force damage to the cable or scratch the insulation layer due to manual drag. 10、 If the cable cannot be laid in real time for some reason, it shall be stored in a dry place to prevent sunlight exposure, water inflow at the cable end, etc. Secondly, it is also a link that can not be underestimated, that is, it is necessary to conduct acceptance inspection on the installed cables to see if there are omissions. 1、 First, the user shall check and accept the cable to see if it is damaged, and the construction personnel shall test the resistance and insulation resistance of each cable with a multimeter to confirm whether the cable resistance and insulation are normal, and record it. 2、 The supervision personnel of the user are invited to accept the whole laying. The main acceptance items are: a) whether the insulation layer is laid smoothly; B) If reflective film is installed, check whether the laying of reflective film is smooth; C) Whether the barbed wire mesh is installed smoothly and fixed. D) After the heating cable is energized, check whether the surface temperature of the cable has increased significantly, and sign on the acceptance sheet for confirmation.
Why You Want a Cable Length Testers
Why You Want a Cable Length Testers
Today there are many different manufacturers and types of network cable testers on the market. Standard testers are used by those who want to check the quality of their cables. Bridge cables are a one-piece technology and are often used by certification testers as they can perform a greater variety of tests and there are short training videos on how to use them.Professional network testers are used in commercial environments and by certified professional cable installers at work. Professional testers have more skills when it comes to troubleshooting cables while maintaining a high level of accuracy. As an added bonus, professional testers allow you to track and archive your test results for future references.Some verification tools contain additional features such as a Time Domain Reflectometer (TDR) to determine the length of the cable and the distance between interruptions and short circuits. Some test tools do not provide information about bandwidth or suitability for high-speed data communication.There are many different types of network testers on the market today. LinkIQ cable network testers are easy to use, as explains Eric Webb, Fluke Network Product Manager in the video below. It shows how the settings can be used to perform a cable test with a network cable tester, save the results and upload them to link ware where they are available.To help you find the best network or cable tester for your use, I have compiled a list of test products that work well. The most obvious difference between a generic or standard tester and a professional tester is the brand cost, where professional network testers are more expensive than other testers.I came across the Elegiant Network Cable Tester while working on establishing a LAN connection for a local company. With my extensive experience as an electrician, I can say that this is the best tool for testing cable connections.Selecting, selecting and purchasing a suitable network cable tester can be a complicated and challenging task. However, there are some essential factors that consumers should consider when purchasing a good network cable tester and absolutely should consider, as they can make or break the tester you are buying.For example, suppose you are looking for a good Ethernet cable tester or Ethernet cable speed tester. Network cable testers are sensitive products that are exposed to various extreme elements, suggesting that you should get a tester with a long warranty. In this case, you should look at the reviews of the Ethernet cable testers from previous buyers, who can confirm the star rating of the products.These three basic tests are performed in accordance with the EIA standards for twisted pair cables, wire mapping and cable length for high-speed performance. Check that the signal is strong and fast enough to meet network performance requirements. If you are testing the cable length with a calibrated capacitive tester it is better to test with a time domain reflector tester, as it can measure the distance to the location where the error is displayed.Make sure that the two ends of the cable you want to test are not connected to a TV, cable distributor, or any other related device. Find the right cable and touch the cable to one or the other so that a beep is generated. Connect one end of the coaxial cable tester to the wall plate on your coaxial cable wall and point the other end to the tester so that the entire cable can be assembled.This situation is indistinguishable from a real insulation break when the triggering current is exceeded. As the length of the cable increases, its capacity is limited by the rise time. The shorter the rise time, the higher the voltage, and the larger the DV / DT, the greater the amount of current required to charge the cable (parasitic capacity). Increasing the wire resistance of a longer cable helps to slow the charging current but requires a minimum dwell time of 10 s to ensure that the full cable length is reached before the test voltage is performed (leak measurements).Dirty contacts, bad bruising, cable damage and poor quality can provide strange and wonderful reading results. In order to reach the test voltage without damaging the traction current, it should be taken care to adjust the voltage ramp to the length of the cable so that it slows down. Cami Research ramp tester has a ramp which can be adjusted from 150 V / s to 5,000 V / s.The flagship cable tester VDV-II Pro uses a TDR to measure cable length and provide distance and error information. A TDR works by injecting a signal into the cable and measuring the time the signal reflects an impedance change caused by a short circuit.Standard testers are manual, while professional testers work automatically. Automatic testers allow you to apply contrasting IA- and ISO-testing methods and highlight many individual tests to verify conformity.The PocketHornet comes standard with a limited warranty of 1-2 years, depending on the region. Customers in the EU receive a 2-year warranty, while others only receive a 1-year warranty. It is not a cable certification device, but conducts cable qualification and verification.There are various types of cables on the market, but the most popular and widely used cable for modern technology is the coaxial cable. This article describes how to test a coaxial cable signal with a multimeter in situations where the transmitter does not work well. We may receive a small commission if you purchase a product through our selected links but the price of the product remains the same.In a house with a wired network connected to the TV, the cable coming from the family room should connect to a cable modem or router upstairs. There are 2 cables in the family rooms, the one marked "upstairs" is connected to the office upstairs and the other "downstairs" to the basement.
Characteristics of Power Cable Fault Tester
Characteristics of Power Cable Fault Tester
Power cable fault tester is a special cable detection equipment used to solve the test of open circuit, short circuit, grounding, low resistance, high resistance flashover and high resistance leakage faults of power cables, as well as the accurate test of open circuit and short circuit faults of coaxial communication cables and local telephone cables. It can also test the cable path, buried depth, radio wave velocity, verify the cable length, and establish cable files for daily maintenance and management. Power cable fault tester is a powerful cable fault comprehensive test system with high-speed data acquisition and superior data processing ability, which is born by absorbing the advantages of 20 cable fault testers at home and abroad. Based on the industrial embedded computer platform system, she adopts today's advanced network and digital communication technology, which greatly improves the use function and test accuracy of the instrument. The test system consists of test host, fault locator and cable Pathfinder. It is used to test the open circuit, short circuit, grounding, low resistance, high resistance flashover and high resistance leakage faults of power cables, as well as the accurate open circuit and short circuit faults of coaxial communication cables and local telephone cables. It can also test the cable path, buried depth, radio wave velocity, verify the cable length, and establish cable files for daily maintenance and management. For the cable high resistance fault test, our company launched the domestic light and small portable cable fault high voltage signal generator, which has the advantages of simple test wiring, safety and portability, and is pioneered in China. Dear customers: Hello, our company is a high-quality development group with strong technical force, providing users with high-quality products, complete solutions and superior technical services. The main products are cable fault tester, underground pipeline detector, street lamp cable fault tester, etc. The enterprise adheres to the tenet of building a business in good faith, keeping the business with quality and developing the business with enterprising. It continues to climb new peaks with a firmer pace and make contributions to the national automation industry. New and old customers are welcome to buy their favorite products at ease. We will serve you wholeheartedly!
Technical Specifications of Cable Fault Detector
Technical Specifications of Cable Fault Detector
1. Long test distance: 32km2. Detection blind area: 1m3. Reading resolution: 1m4. Power consumption: 5va5. Service conditions of cable fault detector: ambient temperature 0 ℃ 40 ℃ (limit temperature - 10 ℃ 50 ℃), relative humidity 40 ℃ (20 90)% RH atmospheric pressure (86 106) kpa6. Volume: 225 × one hundred and sixty-five × 125mm38. Weight: 2kg1 traditional cable fault detection method 1.1 measuring resistance bridge method this method has hardly changed for decades. For short circuit fault and low resistance fault, this method is very convenient. The bridge method is based on the principle that when the bridge is balanced, the product of the corresponding bridge arm resistance is equal, and the length of the cable is directly proportional to the resistance. 1.2 low voltage pulse reflection method low voltage pulse method, also known as time domain reflection method (TDR), means that the pulse reflector independently measures the low resistance and open circuit faults of the cable without passing through the high voltage impactor. 1.3 pulse voltage sampling method pulse voltage sampling method, also known as impulse high voltage flashover method, is a test method for measuring high resistance leakage and flashover faults. Firstly, the cable fault is broken down under the DC or pulse high voltage signal, and then the distance is measured by recording the time required for the discharge pulse to go back and forth between the measuring point and the fault point. Pulse voltage method mainly includes DC high voltage flashover (direct flashover method) and impulse high voltage flashover (impulse flashover method). 1.4 traditional method of cable fault location ①acoustic measurement method this method uses the breakdown and discharge sound of the fault point during high voltage impact to locate the * *. ② Dear customers: Hello, our company is a high-quality development group with strong technical force, providing high-quality products, complete solutions and superior technical services for the majority of users. The main products are high voltage cable fault tester, cable fault locator, intelligent cable fault tester, etc. The enterprise adheres to the tenet of building a business in good faith, keeping the business with quality and developing the business with enterprising. It continues to climb new peaks with a firmer pace and make contributions to the national automation industry. New and old customers are welcome to buy their favorite products at ease. We will serve you wholeheartedly!
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