NOYAFA's Waterproof Probe

NOYAFA's Waterproof Probe

2021-10-23
NOYAFA
45

On this page, you can find quality content focused on waterproof probe. You can also get the latest products and articles that are related to waterproof probe for free. If you have any questions or want to get more information on waterproof probe, please feel free to contact us.

SHENZHEN NOYAFA ELECTRONIC CO.,LIMITED strives to be the recognized manufacturer in providing the high quality waterproof probe. We keep trying every new way of improving the capacity of manufacturing. We are continuously reviewing our production process to enhance the quality of the product as much as possible; we are achieving continuous improvement in the effectiveness of the quality management system.NOYAFA products are highly recommendable, commented by our customers. After years of efforts in improving and marketing, our brand has eventually stood firmly in the industry. Our old customer base is increasing, so is our new customer base, which greatly contributes to the overall sales growth. According to the sales data, almost all of our products have achieved high repurchase rate, which further proves the strong market acceptance of our products.waterproof probe is highly acclaimed and has been given a lot of attention not only due to its high performance and quality but also due to the personalized and considerate services offered at Best Cable Tester Supplier in China _ Noyafa.
more products
recommended articles
Info Center News
Overview of Cable Fault Locator
Overview of Cable Fault Locator
Overview of cable fault locator cable fault locator is a comprehensive cable fault detection instrument. It can test the faults such as high resistance flashover fault, high and low resistance grounding, short circuit, cable disconnection, poor contact and so on. The cable fault locator is equipped with an acoustic pointing instrument, which can be used to accurately determine the * * position of the fault point. It is especially suitable for testing power cables and communication cables of various models and different levels of voltage. Detection mode the cable fault locator adopts a variety of detection modes and applies contemporary * advanced electronic technology achievements. Using computer technology and microelectronics technology, it has the characteristics of high intelligence, complete functions, wide range of use, accurate test, convenient use and so on. The design of locator to detect aircraft cable fault is very important in civil aviation maintenance; According to the characteristics of aircraft cable, a method that can effectively test and diagnose it, low voltage pulse method, is proposed, and an aircraft cable defect detection and positioning device is designed by using single chip microcomputer and CPLD technology; The positioning instrument is mainly composed of three parts: signal acquisition circuit, system control circuit and human-computer interaction circuit; At the same time, two sets of product vibration are adopted, which not only ensures the high-speed signal acquisition, but also meets the low-speed processing of the system. It has the characteristics of low cost, portability and dexterity, accurate test and so on; At the same time, in addition to being applied to aircraft cable maintenance, it can also be further applied to short-distance cable testing and defect detection in telecommunications, power and other departments. Dear customers, the company also has cable recognizer, cable tie tester and underground pipeline detector products. You can call the company's service phone through the website to learn more about the details of the products, Perfect and beautiful service is our pursuit. Welcome new and old customers to buy their favorite products at ease. We will serve you wholeheartedly!
Brief Introduction of Cable Fault Locator
Brief Introduction of Cable Fault Locator
The basic function of cable fault locator is in the power industry and some industries using cables, especially in some complex power systems. It is very difficult to find the fault of underground cable lines. However, in this regard, the continuous emergence of equipment with various functions and simple operation can not only reduce the high cost of fault detection, but also reduce the inevitable long-time power failure when difficult to find (cable fault locator) cable fault, which brings a lot of convenience to troubleshooting. Direct buried cable fault detection in underground direct buried cable and underground residential power distribution (URD) system is a very time-consuming thing, and will cause very inconvenient power failure to users. Some technologies may also damage the cable. For some equipment with high technical requirements, its operation is more complex, and only operators with strict training can use it, which brings a lot of inconvenience to the popularization and application of this kind of technical equipment. Therefore, the selection of appropriate technology depends partly on the knowledge of cable system design understood by the designer of fault detector, and also partly on the professional and technical knowledge of equipment and operators in this regard. With appropriate equipment and professional technology working on site, it is the first step to detect faults quickly and effectively. Hammering (pulse) method many power companies use hammering (pulse) method. This technique is effective in detecting high resistance faults in a simple (cable fault locator) cable system. The hammering method includes using a pulse or impulse voltage to impact the power cut cable. When an effective high voltage pulse strikes the fault area, the fault point flashover and produces a hammering sound that can be heard by the operator along the cable surface. However, detecting cable faults often requires several hammers, and repeated shocks may damage the cable. 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 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!
Design of Consumptive Optical Fiber High Temperature Measuring Instrument
Design of Consumptive Optical Fiber High Temperature Measuring Instrument
1 IntroductionHigh temperature measurement plays an important role in aerospace, materials, energy, chemical industry, metallurgy and other fields. At present, in high temperature measurement, according to whether the measuring probe is in contact with the measured object, the temperature measuring instruments are divided into contact and non-contact.With the emergence of optical fiber technology, it provides conditions for the realization of contact temperature measurement. The contact optical fiber temperature measurement adopts a long quartz optical fiber as the temperature measurement probe and transmission system to keep the instrument away from the site with bad environment. At the same time, the optical fiber optical path is not affected by the environmental atmosphere, which greatly improves the environmental adaptability of the temperature measurement system. However, because the probe adopts the general radiation receiving principle, it is still difficult to solve the problem of emissivity. In order to overcome this problem, the principle of ash body temperature measurement is proposed. The colorimetric method can greatly reduce the influence of emissivity on the temperature measurement results. Under the best conditions, the influence can be reduced to zero. The advantage of such temperature measurement is that the temperature measurement response speed is fast, and the response speed is about 10s [3].The consumable optical fiber high temperature measuring instrument developed in this paper overcomes the above shortcomings and is a new method to measure the temperature of molten metal. Its temperature measurement accuracy is the same as that of the consumption thermocouple, but the temperature measurement cost is greatly reduced, which has great economic benefits and can completely replace the consumption thermocouple.2 principle of colorimetric temperature measurementColorimetric temperature measurement is a method to determine the temperature of an object by measuring the ratio of the radiance of the object at two different wavelengths. Its characteristic is that it can eliminate the interference caused by atmospheric, smoke, dust, ambient temperature and other factors on the measurement path.3 selection of working wavelengthAs can be seen from equation (3), it is very important to correctly select the wavelength and wavelength. Generally, the spectral radiance of the measured object is related to wavelength and temperature, as shown in Figure 1. The ordinate in the figure represents the radiation brightness of the blackbody, the abscissa represents the wavelength, and the temperature of the curve is getting higher and higher from bottom to top.From the curve in the figure, we can see several characteristics of blackbody radiation: (1) the total radiance increases rapidly with the increase of temperature. The higher the temperature, the greater the spectral radiance; (2) When the temperature is constant, the spectral radiance changes according to a certain law with different wavelengths, and the curve has a maximum value. The wavelength here is defined as that when the wavelength is less than, the radiance increases with the increase of the wavelength, and when the wavelength is less than, the change law is opposite; (3) When the temperature increases, the peak wavelength of spectral radiance moves to the short wave direction, the radiance of the object increases, and the luminous color also changes.The wavelength range is preliminarily set at 800 1000 nm, and there is no main absorption band of water vapor in this range, which can reduce the measurement error. When it is 800nm and 1000nm respectively, the relative sensitivity curve is shown in Fig. 2. The relative sensitivity of curve 1 in the figure is high. Therefore, it can be seen that it should be near 800nm. According to the relationship between the spectral response of the photodetector and temperature, it is required to have a good linear relationship. According to the linear relationship, it is better to take it near 950nm.After the experiment, the final choice = 890nm, = 940nm, the colorimetric temperature measurement effect is better.Fig. 2 relation curve between relative sensitivity and temperature
How to Repair Recessed Kitchen Lights
How to Repair Recessed Kitchen Lights
Recessed lighting in a kitchen is usually durable enough to provide many years of reliable light, but, it is not impervious to problems. Recessed lights tend to suffer from two common, yet unsightly, problems - light bulbs that continually blink on and off, and the eventual sagging light cover or trim. You can fix both of these problems quickly and easily. Turn off the circuit breaker that powers the lighting circuit and test the circuit with a non-contact voltage tester to ensure that the correct breaker is off before you work on the light fixture. Remove the trim or light cover from the recessed light by unhinging the springs that hold the trim or cover in place. Inspect the springs to determine if one or more of them are stretched out. If you notice they are, remove them and take them with you to your local hardware store to purchase the right sized replacements. Install the new springs on the trim or cover and re-install the trim or cover to the body of the fixture. Using needle-nose pliers to secure the springs to the inside of the fixture will make the job easier. Turn off the circuit breaker that powers the lighting circuit and test the circuit with a non-contact voltage tester to ensure that the correct breaker is off before you work on the fixture. Climb into the attic or crawlspace above the ceiling where you can access the top side of the recessed fixture. Locate the thermal protection device. This device can look differently depending on the fixture's manufacturer. Some thermal protectors are thin, black cylinders that are connected to the wiring junction box on the exterior of the fixture while others are small, silver discs that can be found on the top of the fixture. Open the wiring junction box on the fixture and find the two wires that are connected to the thermal protection device. Disconnect the two wires and remove the thermal protector. Take the thermal protector to the hardware store so you can purchase the properly-rated replacement. Install the replacement thermal protector and connect the two wires attached to it to the two wires that connected the original thermal device. Twist one wire on the thermal device to one of the wires and screw a wire connector over them, and then do the same thing with the second set of wires. You do not need to worry about wiring certain wires together with this device. Replace the junction box cover and restore power to the lighting circuit.
A Brief Guide to Selecting Cable Length Testers
A Brief Guide to Selecting Cable Length Testers
The LinkRunner LTRA offers a variety of cable testing techniques, including TDR, wiremapping, office identification and toning. The LTRA is designed to help troubleshoot wiring problems such as excessive cable routing, cable breaks, wall panels, patch panels, etc. It uses a combination of TDR and resistance measurements to map the wire, measure cable length and detect anomalies such as short, open or split pairs.The LRAT can measure an accurate cable length of 100 m or less with an accuracy of plus or minus 2 m. It can also be used to test terminated cables connected to an internal cable mapping port (WMAP) or an external cable identification accessory, as well as undermined and open cables. For pre-assembled and non-assembled cables, the fault detection is accurate to within 0.8 m of the error distance.This tester is a wiremapper that checks connections for CAT 5E / 6 certification, but can also test performance at higher frequencies. The threshold for the low voltage resistance is set insulated for 5 mO to a contact resistance of 0.1 O. This is measured with an embedded resistance at 100 O (1 mO x 1) to achieve an accuracy of less than -0.1 o (5 mO).In fact, certification testers can test wire diagrams, length attenuation, and crosstalk from one connection to another, helping you troubleshoot and save the results in a printed report for the customer. Cable certification testers are automated, so it's so easy to get a pass or fail at the touch of a button. Installers use certification testers to test cables that are being laid.There are a large number of cable testers on the market today, which means that there may be the right device for your purposes. To help you find the best network cable tester for your use I have compiled a list of test products that work well. As someone with extensive experience as an electrician, I can say that the Elegiant Network Cable Tester is the best tool for testing cable connections.I came across the Elegiant Network Cable Tester while working on establishing a LAN connection for a local company. As a consumer, I used the handheld network cable tester with RJ11, RJ12, RJ45 for the Cat 3 types Cat 5E, Cat 6 and Cat 6A. The broad compatibility of the device does not complicate your work in the analysis of cable connections.Cable Prowler (tm) provides complete cable testing for all categories of network, coaxial and telephone cables. Selecting, selecting and purchasing a suitable network cable tester is a complicated and challenging task. Purchasing the right network cable tester can save you a lot of inconvenience and trouble.Includes low-voltage and high-voltage subsystems, HVX-compliant automation, enabling extended testing of insulation resistance, dielectric breakthrough, Zener diode breakthrough, voltage upgrade, 4-wire measurements, and advanced measurements. With the changing landscape of corporate cabling, there is a demand for testing equipment you can rely on. Hopefully this article has helped you choose the best network cable tester for your profession and field of work.Advanced measurement options provide increased x5 / 2 wire resistance resolution for backplane, complex networks, capacitors, wire pairs, capacitors, twist pairs, and cable length testing. Copper remains the first choice for telephone data and video lines. Integrated Intellitone digital / analog tones are located on the cable or wire pair in the active network.It is an expensive device that requires trained operators and many failures due to problems with the wirecard. Other crews use low-cost cable ties to ensure the connections are correct before the certification tester is turned on. Instead of letting the crew find and fix their own wiremap problems, tests and fixes can be made before the cable is installed, and tester costs are not wasted on simple problems.
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!
Cause Analysis of Insulation Failure of Power Cable
Cause Analysis of Insulation Failure of Power Cable
1. Insulation aging of insulation fault cables mainly occurs in the later stage of operation, generally in cable lines that have operated for 15 years or more, resulting in a significant increase in cable failure rate. Insulation aging is mainly divided into dendritic aging, electrothermal aging and insulation material aging. The air gap inside the cable insulation medium is free under the action of electric field, which reduces the insulation. When the insulation medium is ionized, ozone, nitrate drum and other chemicals are generated in the air gap, which corrodes the insulation layer. At the same time, the moisture in the insulation decomposes the insulation fiber, resulting in the decline of insulation strength. Overheating will accelerate the aging and deterioration of insulation. The electric dissociation generated by the air gap inside the cable insulation will cause local overheating, carbonize the insulating material and reduce the insulation strength. Cable overload is an important factor of cable overheating. Cables installed in poorly ventilated places such as cable dense areas, cable trenches and cable tunnels, cable paths parallel or cross with thermal pipelines without effective thermal insulation measures will overheat the cables and accelerate the damage of the insulation layer. When the cable insulation operates under the action of electricity and heat for a long time, its physical properties will change, resulting in the reduction of insulation strength or the increase of dielectric loss, which will eventually lead to insulation collapse and aging and failure. The main causes of insulation aging are: (1) improper cable selection, resulting in long-term over-voltage operation of the cable; (2) The surrounding of the cable line is close to the heat source, so that part of the cable or the whole cable line is heated for a long time and ages prematurely; (3) The cable is aged prematurely when working in an environment with adverse chemical reaction with insulation; (4) When multiple cables are running in parallel, one or more of them are in poor contact, resulting in overload operation of other cables in parallel; (5) When making cable accessories, the cable connecting pipe is not firmly crimped, resulting in increased contact resistance and overheating. 2. Accessories: the cable intermediate joint and terminal head are usually completed by the installation personnel at the laying site, and mistakes are easy to occur without paying attention. Cable accessory failure accounts for the main part of cable line failure, which is mainly manifested in composite interface discharge and accessory material aging. The failure of cable accessories is often due to the poor manufacturing process and the carelessness of personnel. During the manufacturing process, bubbles, moisture, impurities and other defects appear in the accessories, resulting in partial discharge and insulation breakdown, which is mainly reflected in: (1) the manufacturing quality of cable intermediate joints and terminals is not high; (a) when stripping the outer semiconducting layer, Damage the lower insulation or there is half a track of particles, dust and other impurities on the insulation surface, or the removal distance of the semi conductive layer is short and the creepage distance is not enough. After the test or operation, the impurities are free under the action of strong electric field and produce electric branches. (b) During the manufacturing process, the crimping quality of the metal connecting pipe is poor, resulting in excessive contact resistance and heating of the joint, or excessive thermal shrinkage, resulting in insulation carbonization, aging and breakdown of the insulating layer, resulting in cable grounding or phase to phase short circuit fault, and may damage other nearby cables. (c) The cable joint process is not standard and the sealing is not standard, so that the insulation is invaded by moisture and moisture, resulting in the deterioration of the insulation of the intermediate joint. In serious cases, water enters into a large area inside the main insulation of the cable, resulting in the overall moisture of the main insulation, the insulation is reduced, and finally the cable breakdown fault occurs. (d) The treatment process of conductor connecting pipe is poor. The selection of crimping die for conductor connecting pipe is unreasonable, and the edges and corners are not polished smoothly. Especially at the edge of crimping die, there are sharp corners, burrs and protrusions, which is very easy to cause uneven electric field at this part, partial discharge during operation, aging insulation, degradation of insulation performance and breakdown fault. (e) The installation size is wrong, the installation position of the stress tube is too low, or the stress cone is not effectively overlapped with the half layer fracture, resulting in the failure of reliable stress evacuation at the semi conductive fracture of the cable. During the test or long-term operation, serious corona discharge occurs at the fracture, resulting in overheating, reducing the insulation, and finally leading to breakdown. (f) The connection of the grounding wire of the cable metal shielding layer is unreliable and does not meet the requirements of grounding resistance, resulting in excessive grounding resistance. When the cable is subjected to overvoltage, the metal shielding layer will produce high induced overvoltage, which will lead to aging and breakdown of the insulating part. (2) During operation, the cable expands and contracts due to the change of load and environmental factors, especially the heat shrinkable accessories can not lose the sealing effect with elastic deformation, forming a respiratory effect between the accessories and the cable insulation layer, bringing moisture and moisture in the atmosphere into the accessories, causing the internal short circuit fault of the cable accessories. Poor quality of cold shrinkable accessories, reduced shrinkage or defective sealing at the parts requiring reliable sealing will lead to external moisture intrusion and eventually cable failure. (3) When making the cable head, due to the high environmental moisture and humidity, reliable dehumidification and moisture drive measures were not taken, the cable insulation was partially affected by moisture, the insulation performance decreased, and developed into a penetrating channel during operation, resulting in cable breakdown accident. 3. The problem of outer sheath is more and more widely used in medium and high voltage power grid. The outer sheath of power cable is the first line of defense to protect the cable. Its integrity is directly related to the safety of internal structure and the service life of the cable. There are three main causes of cable outer sheath failure: (1) hard object damage or external force damage around the cable. There are sharp corners of hard objects at the top and bottom of the directly buried cable that directly contact the outer protective layer. Especially in the road section with vehicles, the sharp corners of hard objects may pierce the outer protective layer for a long time, resulting in damage to the internal structure. In addition, with the change of cable load, the thermal expansion and contraction of the cable itself and the uneven distribution of electric field at the damaged parts, resulting in damage to the insulating layer; During pipe laying, the outer protective layer may be damaged if the steps or inner wall at the pipe connection are not smooth; The outer sheath is damaged due to mechanical construction or pipe jacking around the cable path. (2) Defects and hidden dangers left during construction. During the cable laying construction, the damaged and cracked parts of the outer sheath are in the row pipe, and the personnel cannot find them in time; After running for a period of time, the bending part of 110kV and above cables will crack, the insulation of the outer sheath will be reduced, the metal sheath will be grounded at multiple points, and the circulating current will increase, resulting in thermal aging and breakdown of the insulation. (3) Termite decay. Once a termite erosion site is found, there are often multiple erosion sites on the cable line, which should be paid enough attention. Termite erosion is relatively rare in the northern power grid.
Introduction to Technical Indexes and Characteristics of Cable Identification Instrument
Introduction to Technical Indexes and Characteristics of Cable Identification Instrument
Today, we will give you the technical indicators and technical characteristics of popular science cable recognizer. Friends interested in this aspect can refer to this article. Come with Xiaobian. It is a common technical problem for power cable engineers and cable workers to accurately identify one of the target cables from a bundle of cables. This sometimes requires not only professional cable identification equipment, but also rich experience of staff. The purpose of the cable identification instrument is to avoid serious accidents caused by sawing live cables by mistake. The cable identification requires professionals to ensure that the double number of cable equipment is accurate from both ends of the cable. No matter how reliable the memory of on-site staff is, it can not replace the identification of professional instruments. Cable identification instrument is a special instrument developed according to the special needs of cable application. It is used to identify the power cut cables from a bundle of cables in cable management, erection, migration, maintenance and fault treatment. For the cable maintenance industry, the cable identification instrument is a very familiar instrument. It is indispensable to use this product in the installation and maintenance of power cables. The main reason is that it can help us provide accurate measurement data. The cable identification instrument consists of a signal generator, a receiving identification clamp and an indicator. When using the receiving identification clamp signal detector, the signals detected on other cable lines are much smaller and in the opposite direction. It is easy to determine the tested cable by indicating the amplitude and direction by the electric meter. Let's take a look at its main technical indicators. 1. Detection route and farthest fault location distance: 3km for cables with diameter less than 0.5, and 20km for other cables. 2. Fault insulation resistance at accurate point: 0-50m & omega;. 3. Positioning test accuracy: 10cm. 4. Detection cable depth: 3M technical features: 1. The transmitter and receiver of the complete cable identification instrument are powered by battery, which completely gets rid of the dependence on 220V mains power and is more conducive to field work. 2. The cable identification receiving coupling clamp adopts flexible clamp, which is more conducive to the occasions with dense cables and heavy cables. 3. Large screen color LCD display and voice prompt are adopted on the display interface, which improves the efficiency in cable recognition and is simple and easy to operate.
Best Cable Tester& Cable Tester Software
Best Cable Tester& Cable Tester Software
This article will help you find the best cable tester for your needs.A good cable tester is more than just a cable tester. It should be able to give a sufficient overview of the cable connections and be able to identify any problems with the connection.There are many different types of cable testers and they all do the same thing.In the cable industry, there is a need to test different cables, both for the purpose of quality assurance and in order to make sure that a certain product is compatible with different types of equipment.There are several software products available for testing cable, especially as they become more common in homes and businesses. Some of them have been designed specifically for testing cables. But the problem is that most of them require you to install it on your own computer or laptop first before you can use it. Some are hard to use and require too many settings so that you have to go through many options before finding an appropriate setting.This article will guide you through some tips on installing any cable tester properly so that you can quickly get your cable tested without having to do much research. It will also point out someWe have a cable tester, a type of cable plug that is used to ensure the quality of cables. The cable tester has four prongs and is connected to the main power supply by one wire. These wires are also connected in pairs: one goes to the positive terminal and another goes to the negative terminal. When you want to connect two wires together, you need to connect them first in pairs (with positive and negative terminals) and then separately in pairs (with positive and negative terminals) as shown below:In order for you to test whether or not two cables are connected properly, you will need a cable tester socket adapter. This device looks like an ordinary socket with only one wire on it. The connection between these two wires is made with an adapter. You can find theseIn order to make sure you get the best deals on TVs, Blu-ray players, etc., you need to do some research. You might have heard about a TV review site named "BestBuy" or a "Best Buy". You might also have found yourself going there to check out the latest offers only to be disappointed when your search didn't turn up anything interesting.As you've probably come to realize, there are a lot of possibilities when it comes to finding the best deals on TVs, Blu-ray players and other gadgets. But even if it is easier than ever before, there is still so much information that you need in order for these tradesmen and women to be able to offer quality recommendations.Best cable tester ensures that cables are properly connected to all the devices.With accurate, fast and reliable cable testers, you can easily save your business money.The cable tester software is an essential tool for any cable equipment buyer. It helps to assess the quality of a cable, measuring it's resistance and voltage.Cable testers have been in use since the 50's. The need for them is now less, but they are still widely used in the market.The best cable testers can help you to test Ethernet cables, power cables, phone wires and other wired connections. They also include various other inputs and outputs from home appliances like refrigerators, washing machines and dishwashers.The best cable testers can also be used in different situations to find out whether your device is working properly or not. If your computer isn't functioning properly, you should check the cable of it first before taking any action on it immediately to make sure that there are no faulty connections or miswired devices present in the system because of which your computer won't work properly at all. On the other hand if something goes wrong with a certain deviceToday's cable tester software/hardware is very sophisticated and works in a particular niche. This makes it a perfect fit for cable testers who are looking for precise information such as the channel number, the length of the cable and the condition of the cable.While there may be other software that can do these tasks, this software provides them quite well. This is why you should consider purchasing this software to get some competitive edge in your field.
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;
no data
no data
Contact Us
Leave a message
We welcome custom designs and ideas and is able to cater to the specific requirements. for more information, please visit the website or contact us directly with questions or inquiries.
During 15 years development, Noyafa has become the most famous brand in cable testing industry in China. With excellent production capability, reliable quality, good after-sales service, we get good reputation from customers all over the world.
no data
Contact Person:Lory Liu
Contact Us

+86-0755-27530990

If you have any question, please contact Lorry via

wire@noyafa.com

Add:Wanjing Business Center, #2506 Xinyu Road, Xinqiao, Baoan District, Shenzhen, China

Copyright © 2021 NOYAFA | Sitemap 

chat online
Please message us and we ensure to respond ASAP, what product you intrested in?