NOYAFA's Wire Short Finder

NOYAFA's Wire Short Finder

2021-10-11
NOYAFA
47

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

The wire short finder is recommended by SHENZHEN NOYAFA ELECTRONIC CO.,LIMITED for 2 keys: 1) It is manufactured based on fine materials which are supplied by our reliable partners, fantastic design which is made by our own team of talents, and excellent craftsmanship which is a result of talents and skills; 2) It is applied in specific fields where it is in the lead, which can be attributed to our precise positioning. In the future, it will continue playing an important role in the market, on a basis of our constant investment and strong R&D capability. The word 'persistence' covers a wide range of activities when we brand ourselves. We participate in a series of international exhibitions and bring our products to the world. We participate in industry seminars to learn the latest industry knowledge and apply to our product range. These combined efforts have driven business growth of NOYAFA. wire short finder is noted for its various services that come with it, which has attracted many businesses to place orders on us due to our fast delivery, carefully-designed samples and considerate inquiry and after-sales service at Best Cable Tester Supplier in China _ Noyafa.
more products
recommended articles
Info Center News
Model Prototype Exercise: Handheld Electric Screwdriver
Model Prototype Exercise: Handheld Electric Screwdriver
To practice designing 3D low-fidelity prototypes, I was tasked to prototype an OXO handheld electric screwdriver as a new opportunity to expand their business into new product lines.Designing for OXOs Brand IdentityBefore sketching out design ideas, I wanted to familiarize myself with the OXO brand, hoping that the form of my design will match with OXOs brand identity. OXO incorporates comfortable and easy to use tools, while also applying simple,universal design. When I was sketching, I wanted to prioritize comfort, which is why the designs for the screwdriver include a hand grip area for the user to comfortably hold the screwdriver. I also attempted to emulate the simple designs of OXO, because the interfaces to be as minimalist as possible.Additionally, the sketches addressed the product requirements of a fluid speed control, a automatic screw driver selection (shape and size), direction mechanism (screwing in vs. screwing out), and a progress digital readout (number of screws in and out).PrototypeI created a handheld electric screwdriver prototype that is 6 inches long. With rocks and Easter eggs filled with rice inside, the prototype weighs one pound, emulating the actual weight of the product. Shape & FormI wanted the shape and form of the screwdriver to be comfortable and intuitive for the user. The handle on the screwdriver is slightly curved to emulate the natural grip when holding an object around your hand. I also included tape around the area to represent different material that would be incorporated for comfort. Additionally the handle is suitable for left-handed users or right-handed users.FunctionalityThere are several functionalities that make the prototype, including speed control, screw driver shape/size selection, screw driver direction, and a digital readout component. The screwdriver will also have a rechargeable battery. Fluid Speed Control Mechanism: I incorporated a fluid speed control under tucked in the handle for easy access to change the speed of the screwdriver while holding it at the same time. The sensor will capture the pressure of the grip and change the speed accordingly. The white thumbtack shown in the left image above is located where ones index finger would be, a intuitive hold and position to be controlling the speed. Screw Driver Selection Mechanism (shape/size): For the screw driver shape and size selection, this screwdriver supports 2 different head changes (Phillips or flat) and 5 different sizes. This screw driver shape and size is presented on a touch screen, where the user can tap to select different heads and sizes. After the user will press set for the screwdriver to automatically change shape/size. This interface is above the gripped area to avoid accidental switches in screw driver. Additionally the interface faces the user when they hold onto the screwdriver, allowing for easy visibility of the current setting of the screwdriver.Screw Driver Direction Mechanism: The screw driver direction mechanism is located on the side of the screwdriver with a slider mechanism to change the direction based on if the user is screwing in versus out. Digital Readout Component: The digital readout component shows the number of screw in and out below the direction mechanism. The reset button allows for the user to set the count back to 0.Rechargeable Battery: The screwdriver is rechargeable and the battery is placed inside the bottom of the screwdriver. AnalysisAfter finalizing the prototype, my peer members were able to give critiques and I was able to conduct one in-depth user test on all functionality. Click on the link below to view a snippet of the user test.What went well?Many users enjoyed the fit and weight of the prototype, explaining that the curved form of the screwdriver fit well with their grip and how they would intuitively hold the screwdriver. Users found the reset button on the count of the number of screws in and out practical and functional even thought it wasnt a product requirement.The speed control was intuitive for everyone, knowing that the harder they pressed the faster the head would turn. All users found the button placed in a comfortable position where their index finger was. The placement of the rechargeable battery was intuitive for all users.What needed improvement?Many users were confused with the digital readout component that indicates the count of screws in and out. Manyusers were unable to initially understand what the numbers stood for. There was uncertainty with the set button, expressing confusion on the ordering of changing the heads of the screwdriver. If the set button should be pressed before or after selecting the shape and size.The placement of the reset button may get in the way when gripping the screwdriver, possibly causing unintentionally reset of the digital readout. Additionally there was no way to reset only one of the digital readout numbers. So if a user wanted to reset only the number of screws in, this would not be possible.Takeaways & Next StepsOverall based on this analysis, the most effective component of the prototype was the shape/form of the screwdriver as well as the fluid speed control mechanisms. Both were praised and intuitive for users. However, the least effective component was the interface of the digital readout component. By using icons paired with labels of in and out the digital readout component can be more clear on what is being represented. Additionally if the slider is placed between the label and the actual readout component, the label would be on the top, possibly better indicating what the digital readout is and what the in and out slider does.Next steps would be to improve on the interfaces of the digital readout component, since this was the least effective functionality. After improving on the new interface, the next step is to do another round of critique and user testing. RELATED QUESTION Which is the best natural face mask for dark and oily skin? Hello there,The Best Face Mask for Oily SkinOily skin can be a major cause of acne because the pores are constantly clogged. This is why you need a great mask to help get rid of excess oil in the pores and on the skin.This mask works hard at regulating oiliness, soothing acne flare-ups and soothing the skin. To make the mask, you will need:1 apricot1 tablespoon of natural yogurt1/2 teaspoon of cosmetic clayDirections:Blend the apricot in a food processor. Add the yogurt and the clay and mix it until it becomes a smooth paste.Apply the mixture to your face and allow it to dry for 20 minutes before rinsing it off with lukewarm water. We love DIY face masks because of their easy to make recipes and all-natural ingredients.Heres some best face mask for all skin problems. You can make it easily at your home.1. The Activated Charcoal Acne Face Mask2. The Avocado & Honey Acne Blasting Face Mask3. The Honey Acne Face Mask4. The Cucumber Acne Face Mask5. The Turmeric Face Mask for Acne6. The Aloe Vera Acne Face Mask7. The Cinnamon Acne Face Mask8. The Apple Cider Acne-Fighting Face MaskGet the face mask recipe and benefits here:22 Of The Best Natural Face MasksI hope this might be help you to get rid of oily skin.Thank You!
What Is the Difference Between Medium and Low Voltage Cable Fault Tester and Traditional Tester
What Is the Difference Between Medium and Low Voltage Cable Fault Tester and Traditional Tester
Since the buried cable appeared in our life, cable fault detection has become a test of people's work. How to accurately find out the cable fault point through layers of soil requires not only the experience of maintenance personnel, but also corresponding equipment support. Cable fault tester is one of the commonly used detection equipment. Today, we mainly discuss the difference between the medium and low voltage cable fault tester and the traditional one. Difference analysis between medium and low voltage cable fault tester and traditional cable fault tester: first, introduction of fixed-point method of cable fault. There are two kinds of cable fault rough measurement methods: electric bridge method and pulse reflection method. There are the following methods for cable fault fixed point: 1. Acoustic measurement method: acoustic measurement method is used for fixed point, which is a common method for cable fault fixed point from the past to the present. And it is the most effective method. However, the instrument used has developed from a simple acoustic electric amplifier to an acoustic magnetic synchronous fixed-point instrument widely used now. The fixed point of acoustic measurement method is applicable to high-voltage cable, low-voltage cable, directly buried cable, cable trench cable, etc. 2. Step voltage method: step voltage method is adopted for fixed point, which is mainly aimed at the fixed point of outer sheath grounding fault with requirements for cable outer sheath insulation. Now, step voltage method can also be used for fixed point of grounding fault of some directly buried unarmored low-voltage cables and wires. 3. Electromagnetic method and audio method: it is feasible to fix the point with electromagnetic wave or audio method in principle. However, from the current situation, there is no fixed-point instrument with reliable performance and practical application. In other words, the fixed-point instrument using electromagnetic wave fixed-point is still being developed by various scientific research institutions, which needs to be further verified and improved in practice to reach the practical application level. 2、 Introduction to medium and low voltage cable detector (bridge tester): most of the medium and low voltage cable detectors in circulation in the market now complete the function of cable fault rough measurement. Its principle is generally using the electric bridge method, but now it has adopted computer technology and intelligent electric bridge. There are low-voltage bridge, high-voltage bridge and so on. Some instruments also use the principle of ultra-high voltage digital bridge. The voltage applied to the fault point is generally more than 200V, and the most Gao can be added to 20kV. For cable fault with low fault resistance (resistance less than 600m & omega;). The fault distance can be roughly measured with medium and low voltage cable detector. Scope of application: applicable to leakage fault test with low fault resistance value. It is generally used for cable fault test below 6000V & lt; Rough measurement of fault distance & gt Advantages: for cable faults suitable for testing, it is simple to use and has low technical requirements for users. Fool test. In addition, for some fault points, such as some cable joint faults, due to the long creepage distance of the fault point, the fault of flashover discharge cannot be formed. Because the pulse flash method cannot be used to roughly measure the fault distance, the electric bridge method has its advantages. In the actual test, when the insulation resistance of the fault point is lower than 100m, but the high-voltage flashover test (impulse voltage is greater than 20kV), the low-voltage measured discharge current displayed by the operation box does not exceed 5a, and the sound is clear when the ball gap is discharged, which indicates that the fault point has not formed flashover discharge, and the flash tester displays the full-length waveform of the cable. In this case, we can basically conclude that the cable intermediate joint is faulty. The middle head can be excavated directly, and the cable fault pointing instrument can be used for accurate pointing, so as to further diagnose the fault point.
Problems Needing Attention in Field Repair of Wires and Cables
Problems Needing Attention in Field Repair of Wires and Cables
In the process of cable laying on site, the phenomenon of scratch and damage on the surface of cable sheath is common, and only the sheath is damaged slightly. How to repair can ensure the quality, short repair time and ensure the quality has increasingly become a common concern of cable consumers. Moreover, the investment is small and easy to realize under the bad conditions on site. Therefore, the repair technology and quality of on-site sheath have increasingly become the concern of users. The on-site construction conditions of cables are generally poor, which may be located in the power plant under preliminary construction, the newly-built field railway under preliminary construction, on the bridge or in the cable tunnel. Because the repair of field cable sheath is carried out with plastic welding gun, and the heating of plastic welding gun requires 220V AC, it is in the emerging field project, Generally, there is a lack of power supply on site, or there may be power supply. Due to the randomness of the laying position of on-site cables, it is difficult to provide power supply. Therefore, to repair the cable sheath, on the one hand, the personnel are in place, on the other hand, the power supply is mainly provided. Only the above two basic preparations can be made, In order to realize the normal development and progress of cable sheath repair. In order to facilitate the smooth repair of cable sheath field, the construction unit shall be equipped with field small generators. At the same time, it is convenient for on-site repair. The quality of the plastic welding gun provided now should be excellent. The heating area of the nozzle should be large and the heating speed should be fast. Moreover, the damaged parts in the cable setting out process are random. This work is easy to carry out in general cities and plain areas, but in some mountainous areas, due to the influence of complex terrain, the cable repair work is actually very difficult. Therefore, in order to reduce the investment in corresponding aspects and quickly solve the problem, a key problem is that the number of personnel in the cable laying process must be sufficient, and formal cable laying equipment shall be used for formal setting out, so as to avoid and reduce the damage of sheath in the cable setting out process. The technology required for on-site cable repair is not very high. After the cable is damaged, the cable laying construction unit must repair the cable on the premise of confirming that there is no damage inside the cable, otherwise the cable sheath repair has little practical significance. The cable must be repaired in time, otherwise the entry of external moisture and moisture will affect the service life of the cable. In Meiyu weather in the south, after the cable end is laid, the cable end is not sealed in time, resulting in the water flowing into the cable trench entering the cable end for 10-20 meters. After stripping the insulation of the end, it is found that all the conductors have been blackened, resulting in the waste of the cable after laying. Therefore, the inspection of the cable after laying should be strengthened, Maintenance and storage shall be carried out to prevent the shortening and termination of cable life caused by various external factors on site before power on. Some tools and materials used for on-site repair of cables must be fully prepared. Plastic welding gun is necessary. High voltage insulating tape, waterproof tape, peeled leather of plastic insulation and sheath, and other sealing materials must also be prepared, because cable insulation and sheath materials are mainly divided into cross-linked polyethylene, polyethylene, polyvinyl chloride and other materials. Some materials are thermosetting materials, such as cross-linked polyethylene insulation, which cannot be melted and reused again. They can only be repaired with high-voltage insulating tape and repair tape series provided by 3M company in the United States. Some materials belong to thermoplastic materials, which can be melted and used again at high temperature, such as polyethylene, polyvinyl chloride and other materials. Some materials can be taken on site, and the corner sheath material stripped from the cable end can be cut into thin strips to repair the insulation and sheath of low-voltage cables, The repair quality can fully meet the requirements of the normal service performance of the cable. In addition, the treatment of sheath damage of medium voltage cable during on-site laying should not be too rough. One is that the cable must be handled with care during the laying process. In addition, after the external damage of the cable, the damage of its internal insulation is sometimes hard to say, The author once conducted a return test on the cables with multiple damaged outer sheath caused by careless construction in the field laying process, and found that partial discharge exceeded the standard and breakdown occurred in the damaged parts of the cables. Therefore, for medium voltage power cables with damaged outer sheath in the field laying process, it is best to cut off the intermediate joint or replace the cable again, Because there may be hidden dangers after repairing the damaged part of the cable. Facts have proved that the repair of insulation and sheath of low-voltage cables must be slightly damaged. The repair of insulation and sheath can only be carried out on the premise that the insulation and sheath are damaged and other structures of cables are intact. The requirements of medium and high-voltage cables may be more stringent. In order to reduce the number of intermediate joints of cables in cable transmission of some projects now, All cables are long-length single core cables. Due to the long laying distance of the line, responsible terrain, the number of construction personnel and the lack of professional cable laying equipment, the probability of cable sheath damage during the construction process is greatly increased. After the above problems occur in some construction, it is irresponsible to wrap a bag of ordinary tape casually. There is no knowledge of the internal damage of the cable damage point. Insulation breakdown or potential quality hazards are likely to occur during the on-site completion test and later operation of the cable.
How to Use Live Cable Identification Instrument to Identify Power Failure and Live Cable
How to Use Live Cable Identification Instrument to Identify Power Failure and Live Cable
Before we use the instrument.. Let's first understand the functions of the instrument panel buttons and what they are used for? Live cable identifier transmitter 1) signal output port: this port sends the signal to the cable to be tested through direct connection coupling. The instrument can automatically detect the connection mode (direct connection or coupling). When no output line is connected to this port, the screen mode menu displays "idle", and no signal is output at this time; 2) Frequency switching: the instrument has four output frequencies: low frequency, intermediate frequency, high frequency and radio frequency. It is suitable for different test systems and has strong anti-interference ability. When this button is pressed, the frequency will be switched between the above frequencies in turn; 3) Power regulation: the instrument adopts constant power output mode, and low, medium and high gears are optional. When this button is pressed, the power will be switched between the above gears. 4) Backlight switch: turn on the backlight for test after the instrument is turned on. When this button is pressed, the backlight will turn on. When it is pressed again, the backlight will turn off. 5) Power switch: the main switch of the whole instrument. When this button is pressed, the instrument enters the test interface; 6) Liquid crystal display: the instrument uses liquid crystal display for man-machine dialogue. 7) charging interface: it is used to charge the signal transmitter and the receiver of live cable identification instrument. 1) power switch: it is responsible for turning on and off the power supply. Press the state to turn on, and then press the key to turn it off; 2) Frequency switching: the instrument has four output frequencies: low frequency, intermediate frequency, high frequency and radio frequency. It is suitable for different test systems and has strong anti-interference ability. When this button is pressed, the frequency will be switched between the above frequencies in turn; 3) Backlight switch: turn on the backlight for test after the instrument is turned on. When this button is pressed, the backlight will turn on. When it is pressed again, the backlight will turn off. 4) Volume adjustment: adjust the sound volume of the speaker according to the demand, and adjust the volume in the order of small - medium - Large - off; 5) Gain adjustment: adjust the system gain according to the demand, the dynamic range is 000-100db, and the default is 60dB after startup; 6) Charging interface: it is used for charging the signal receiver. I believe you have a preliminary understanding of the instrument. Let's explain in detail how to use the live cable identification instrument: 1. Identification of power-off cable 1.1 direct connection conditions â—Ž it must be power-off cable; â—Ž know at least one end of the cable and separate the known end from the system, including disengaging the zero line and ground line; 1.2 signal application â—Ž in this method, the direct connection method is used to apply the signal (as shown in Figure 4); Turn off the power switch of the transmitter, insert the output connecting line into the output line interface of the transmitter, as shown in Figure 4, and connect the wire core with the red clip. Turn on the transmitter power switch and select the frequency: the transmitter has four or two frequencies: low frequency, intermediate frequency, high frequency and RF; After selecting the frequency, select the gear according to the actual situation. The transmitter is divided into high gear, medium gear and low gear. Generally, try to select a relatively low gear to save the power of the battery. After selecting the gear, the instrument automatically performs impedance matching. After matching, the transmitter displays the stable fault impedance of the current system, and the icon starts to rotate. 1.3 signal detection (identification) â—Ž connect the receiving coupling clamp to the receiver with a connecting wire with four core plugs at both ends; â—Ž turn on the power switch of the receiver to make its frequency correspond to the transmitter; â—Ž clamp the red line or cable head of the transmitter straight line with the receiving coupling clamp to reduce the gain so that the signal strength is about 800. Remember the current gain and strength value, and take this value as the reference value; â—Ž at the point to be tested, clamp the exposed cable with coupling pliers and find the cable with strong signal, that is, the cable to be found. 2. Identification of live cable 2.1 coupling conditions the cable must have known exposure points, and both ends of the cable must have grounding points or points associated with the ground (the live cable has been associated with the ground through the zero line); The coupling position shall be as far away from the end as possible; 2.2 one end of the four core aviation line equipped with the coupling signal application instrument is connected with the four core aviation base on the transmitting coupling clamp, and the other end is connected with the transmitter to complete the connection between the transmitting clamp and the transmitter; Put the transmitting coupling clamp on the cable exposure point, which is the signal application point. Note that the coupler should be completely closed; Turn on the power switch, select the frequency and match the impedance of the instrument; 2.3 signal detection (identification) â—Ž connect the receiver and receiver coupling clamp with four core aviation line; â—Ž at the transmitting point, clamp the receiving coupling clamp on the cable to reduce the gain so that the signal strength is about 800. Remember the current gain and strength value, and take this value as the reference value; â—Ž at the point to be measured, clamp the receiving coupling clamp on the exposed cable and find the cable with strong signal, that is, the cable to be found. If the cable is long, the signal will have a certain attenuation. At this time, compare the cable with strong signal.
What Should Be Considered When Purchasing a Cable Fault Tester
What Should Be Considered When Purchasing a Cable Fault Tester
Cable fault tester is a common cable fault detection equipment, and its accuracy and detection speed are guaranteed. We are used to evaluating this thing before we buy it, from its performance, value, price and other aspects. After that, we will decide whether to buy it. So, what evaluation should be done when purchasing a cable fault tester? When selecting the cable fault tester, the cable fault tester needs to understand its performance. Is its overall performance stable, or is it convenient in the whole operation? If there are problems in the operation and unstable performance of the cable fault tester you choose, it will certainly lead to more problems in the whole use, not to mention that the cable fault tester you choose is a test suitable for your own use, which can not highlight its whole use value. Therefore, when selecting the cable fault tester, we should pay attention to these two points: 1. How about the performance? Before choosing a cable fault tester, you'd better understand and test several different cable fault testers, that is, find some early tests to see if they really have high usability. 2. Quickly detect the fault point and find the problem of your own equipment in a very short time, If you can, it can show that it is a very good cable fault test. If you can't meet this standard, you will waste more time and money, and the selected cable fault tester will not be suitable for your own use. Therefore, we can understand how to select a more appropriate cable fault tester. After selecting an efficient and suitable cable fault tester, the next step is how to use it. What if you can better operate the cable fault tester to enable you to quickly detect the fault point? 1. Understand the instructions of the cable fault tester. After you get a cable fault tester, you need to understand its operating instructions before preparing for operation. Some people feel that they have a certain understanding of the cable, so it is not necessary to understand its operating instructions when using it. In fact, this is not the case, Most of the time, my knowledge is very different from professional operation, so I can understand the contents of the operation manual in advance before use, which naturally has a very good guarantee for the whole operation after use. 2. Check the circuit. When using the cable fault tester, do you need to test in advance or find out if there is a problem with its circuit connection? If there is a problem that needs troubleshooting, you also need to know whether the whole connection is normal in advance, so as to have higher detection efficiency in the whole detection, know the problem of cable fault, and find a good solution, so as to ensure the working performance of the whole power system. Generally speaking, after the carefully selected cable fault tester, the equipment performance of the cable fault tester is guaranteed. In the process of cable fault detection, the corresponding fault results can be obtained according to the fault performance in the operation manual.
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
Three Preventive Measures for Cable Leakage in Cable Fault Detection
Three Preventive Measures for Cable Leakage in Cable Fault Detection
It is very troublesome to solve the problem of the cable leakage, and the general cable fault tester is not equipped with the corresponding treatment equipment. In the specific operation, if a part of the cable joint end leaks, it can be applied again only by cutting off how many meters of the front-end development. If the reading of a cable has leaked, the foundation can not be used at this stage, so it can only be charged. Therefore, avoiding cable leakage is the appropriate choice, so as to take preventive measures. First, the cable joint shall be sealed. The sawn cable edges, whether stacked or laid, shall be sealed with plastic, and the special sealing sleeve for cable shall be selected to avoid the penetration of moisture and moisture. The fabrication of cable joints shall be carried out immediately after cable laying. Second, when purchasing cables, be sure to select manufacturers with solid quality. Because the residue and air outlet hole in the insulating layer are the starting point of water tree generation, the quality of cable is particularly important to avoid water tree embrittlement. Third, improve the management method of cable head production and processing technology. Once the cable leaks, the cable joint is usually the first to penetrate. Therefore, if the cable head is made well, it can increase the overall service life of the cable. For example, when the cable is separated from the semiconductor material layer, draw several vertically on the semiconductor material layer, and then peel off the semiconductor material like Gan Shu peeling. However, when cutting with a knife, if it is too deep, it will hurt the cable sheath and create opportunities for water supply and drainage trees. In addition, when the solder wire is used, because the switching power supply cannot be found, the gas furnace will be used to melt the solder wire immediately. At this time, the flame will destroy the copper shielding layer and cable sheath. Therefore, to avoid this kind of situation, UPS can be equipped. Since the time required for the solder wire is generally only 10min, the output power is 500W. PVC plastic PE corrugated pipe is selected, which has corrosion resistance, clean and bright inner cavity The compressive strength and ductility are excellent. Therefore, when the cable is buried and laid, the damage of the cable outer sheath can be greatly reduced. Design scheme of cable trench (pipe) and cable well. Due to the limitation of the standard, the cable laying adopts the method of buried or cable trench, and most of them are buried. If it belongs to the rainy area in the coastal area, there is water stored in the cable trench or cable well for a long time. Because the depth of the cable trench or cable well will exceed the depth of the sewer pipe, the drainage pipe is very difficult. Therefore, in the overall planning, harmony should be carried out, which is conducive to the drainage pipe of the cable trench (well). If it is impossible to ensure that there is no water in the cable well, the middle connector in the cable well shall be lifted with a support frame.
Best High Voltage Detector Tester Reviews in 2021
Best High Voltage Detector Tester Reviews in 2021
A voltage detector is a power tool that tests the electric field presence of an electrical circuit. A voltage sensor is capable of detecting 12-1000V AC and can detect the voltage of electrical appliances, cables, switches, cables, lights, wires, sockets and circuit breakers. It is also able to detect the voltage of irrigation systems, doorbells, low voltage flashes and thermostats.The Sperry voltage tester is a durable, portable, lightweight and easy-to-use voltage sensor, which can detect AC voltages from 1.2 V to 1,000 V. Our love of the Greenlee Commercial Electric Voltage Tester is that it includes helpful design elements such as acoustic and visual clues that there is electricity in the output, such as the sound of the voice and additional echo sounder alarms. The Klein Tool ET40 voltage testers are ideal for checking regular electrical wiring, door bell sockets, lights and others.Due to the simple design described above, it is easy to use Klein Tools NCVT-3 voltage tester. The Fluke 1AC-II Non-Contact Voltage Meter has a red tip and a beep that sounds when voltage is detected. To use this non-contact voltage tester, all you need to do is touch the tip of the non-contact voltage meter to the wire on the outlet and then place it in a small slot on the front panel.If a voltage is detected, an LED lights up at the top and the circuit is interrupted. When electromagnetic waves come from a source and the voltage hits the tip of the ballpoint pen, the non-contact voltage tester reacts by sending a signal to the circuit, which activates a light and a sound to inform the user that a power cable has been tested. The FLK2AC can detect voltages from 90 to 1,000 volts, it lights up red and a beep indicates that it has detected voltage.The FLK2AC is powered by two AAA batteries and has an automatic shutdown to avoid draining the batteries. The NCVT 3P comes with a flashlight, which the NCVT 2P lacked, so I decided to replace the 2P with an NCVT 6 that uses a laser to determine the exact distance to the voltage source. I have also included the Neoteck Professional Non-Contact option as a low-end option and the Bside X1As as a high-end option.If you need a high-quality outdoor voltage tester, the waterproof IP67 housing of the Southwire mid-range non-contact voltage tester is appreciated. A voltage detector or LED tester not only provides maximum safety, but also removes the limitations of the type of voltage devices that can be tested. Not only is it the most reliable model in its price range but it is also equipped with new Voltbeat technology which enables self-testing, so that when something goes wrong, the problem can be detected by the sensor itself or by another device such as a nearby voltmeter or oscilloscope.This voltage detector with LED tester has a wide detection range from 1.2 to 1000V AC and is able to test the voltage of household appliances. In addition to detecting standard and low voltages, it can also identify nominal voltages. The quality voltage pin operates in a wide voltage range and gives visual and acoustic feedback when a voltage is detected.All these aspects must be taken into account when selecting the best voltage tester for daily use. Our ratings of the best voltages to test will help you choose the best one for your needs.Buy one from a trusted manufacturer if you are looking for a tool that will be part of your toolbox for years to come. You will want the best and you will be eager to find a lasting one. You can fix failed assets with the first tool you put your hands on.If you are looking for a non-contact tester with an outstanding feature, this will be your ideal choice. It has an auto function that automatically determines whether the device has been used in the last few minutes. My colleagues praised this product and the reviews reflect the satisfaction of the product buyers.Milwaukee is at the forefront of innovation, producing innovative products that help solve everyday problems, such as the 2203-20 voltage tester. This multimeter switches between AC and DC current to test resistance and amperage. As a trusted manufacturer in the power tool industry, specializing in the manufacture of electrical tools for professionals, their products are top notch, and many professionals have been using the meters they buy for decades.
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?