Cat6 Network Cable Tester Buying Guide

Cat6 Network Cable Tester Buying Guide

2021-10-13
NOYAFA
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cat6 network cable tester from SHENZHEN NOYAFA ELECTRONIC CO.,LIMITED is tailored to specific customer needs. It is designed after testing on the potential customers and the market research groups who give brutally honest opinions. And these opinions are something being seriously used to boost its quality. The time and money spent upfront perfecting this product before it hits the market allow us to minimize customer complaints and returns.We have developed our own brand-NOYAFA, which can help ensure that our corporate message comes across crystal clear. With our ongoing efforts at reflecting on and improving every stage of our development, we believe that we will succeed in establishing more long-term relationships with our customers.Service is an essential part of our endeavor at Best Cable Tester Supplier in China _ Noyafa. We facilitate a team of professional designer to work out customization plan for all products, including cat6 network cable tester.
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Brief Introduction of High Voltage Cable Fault Test
Brief Introduction of High Voltage Cable Fault Test
Brief introduction to high voltage cable fault tester product nickname: cable fault tester, high voltage cable fault tester, cable fault tester, point tester, path tester, cable fault Pathfinder, cable fault tracker, portable cable fault location system, cable fault flash tester, cable fault point tester, cable path tester, working principle of high voltage cable fault tester, Smooth wired communication and power transmission depend on the normal operation of cable lines. Once the line is blocked, it will cause the communication to find out the fault in time and eliminate it quickly, which will cause great economic losses and poor social impact. Therefore, the cable fault tester is an important tool to maintain all kinds of cables. The cable fault intelligent tester adopts a variety of fault detection methods, applies contemporary * advanced electronic technology achievements and devices, adopts computer technology and special electronic technology, and combines the company's long-term successful experience in developing cable tester. It is a new high-tech, intelligent and fully functional product. Dear customers: the company also has power cable fault tester, cable fault locator and cable fault tester products. You can call the company's service phone through the web page to learn more product details. Perfect and beautiful service is our pursuit. New and old customers are welcome to buy their favorite products at ease. We will serve you wholeheartedly!
HYC Exclusive Patented Design  Polarization Maintaining(PM) Optical Fiber Connector
HYC Exclusive Patented Design Polarization Maintaining(PM) Optical Fiber Connector
What is Polarization Maintaining(PM) fiber?Theoretically, the fiber is a circular core which should not produce birefringence, and the polarization state in such a fiber will not change during transmission. In practice, there is always some external forces or other reasons which makes the fiber uneven or curved, and will cause a small amount of birefringence. When the fiber is subject to any external interference, such as wavelength, bending of the fiber, temperature and other factors, the polarization state of light will become chaotic when transmitted in polarization-maintaining fiber. Polarization Maintaining Optical Fiber (PM Fiber) is such a specialty fiber with strong birefringence that is generated by the design of optical fiber geometry. It can effectively solve the problem of polarization state change by eliminating the effect of stress on the polarization state of incident light. If the polarization of the light incident on the fiber is aligned with one of the birefringence axes, the polarization state will remain even if the fiber is bent. This polarization maintaining feature is extremely important for some special applications that require a polarized light input.How does the polarization maintaining (PM) patch cord work?Polarization maintaining(PM) patch cord maintains the coupling alignment of two Polarization modes by precise connector keys. Compared with the traditional optical fiber patch cord, the PM optical fiber patch cord has the advantages of polarization-maintaining optical fiber transmitting polarized light signal, keeping the direction of linear polarization unchanged, improving the coherent signal-to-noise ratio, and realizing high precision measurement of physical quantity. The polarization maintaining connector is an important component of two polarization maintaining fiber coupling, which ensures that the polarization mode of two PM optical fibers maintain the original polarization state of polarized light, and maintains a high extinction ratio for transmission. This requires precise docking of the slow or fast axes of the two fibers to minimize the angle error. By aligning the polarization direction of the polarized light with one of the axes, the polarization component assigned to the other axis is small, thereby maintaining the polarization state of the transmitted light. The polarization Angle and extinction ratio reflect the degree of polarization.360 ferrule rotation adjustable Polarization Maintaining(PM) optical fiber connectorTo meet the requirements of some special applications, HYC has developed a new type of polarization maintaining connector. HYCs exclusive patented design of this polarization-maintaining connector has a 360 ferrule adjustable. During the process of assembling, the polarization axis of fiber is aligned with the connector key by rotating the ferrule until the polarization axis is aligned with the connectors keyway. Compared with the traditional fiber adjustment method, it takes a shorter time to operate, which greatly improves the assembly efficiency. The polarization maintaining angle can be controlled within 1, and the high extinction ratio is maintained above 25dB. PM fiber patch cord products have the advantages of high precision, low loss, ultra-high extinction ratio, convenient manufacturing technology, high efficiency, higher maneuverability and patent protection, etc. They are widely used in many fields such as aerospace, navigation, unmanned driving system, communication, highly sensitive interferometer, poly-deviation wavelength division multiplexer, and other fields.HYC Co.,LtdHYCis a national Hi-tech optoelectronics company engaged in R&D, manufacture and marketing of fiber optical products. Providing professional product and service for fiber connectivity,WDM, PLC splitter and high density datacom cabling. HYC products and solutions widely applied in 4G/5G, Data Center and Cloud Computing industry
Principle of Buried Cable Fault Tester
Principle of Buried Cable Fault Tester
Compared with buried wires, buried wires and cables have been used in China for decades. The buried cable fault tester has developed from resistor bridge, capacitor bridge detection and standing wave detection at the beginning of Zui to flashover detection. The development trend of instruments and equipment has experienced the flash detector for general oscilloscope tube display information and the flash detector for storing oscilloscope tube display information. Up to now, intelligent instruments and equipment have been developed, produced and manufactured. The buried cable fault tester adopts large-scale integrated circuit chip, electronic computer solution technology, LCD display technology and other new technology applications, new technologies and new processes. After the wire and cable testing equipment is improved, the common faults of ground buried double eyelid are detected, which has good practical effect and high efficiency. After many practical activities, the common faults of a buried cable double eyelid are generally detected. The buried cable fault tester has a high success rate within 30 minutes from the beginning to the end. Principle of buried cable fault tester 1. The buried cable fault tester uses a unique acoustic frequency vibration sensor and low-noise special components as external components, which further improves the sensitivity of instrument and equipment designation and relative path detection. In terms of signal analysis technology, the distance between the common fault points of digital display information and the sensor technology camera greatly eliminates the one sidedness of designation. 2. When detecting the fault of buried cable, the common fault cable in the empty frame in the cable trench. In the past, the vibration sound of the whole cable makes all the designated instruments helpless, and it is impossible to judge the specific address of the closed common fault. Now, if the controller camera of the instrument touches the common fault cable or the nearby cable line, the information can be directly displayed, and the common fault spacing and orientation can be quickly identified without effort. 3. Based on the basic theory of DC response cancellation and high DC notch technology, the buried cable fault tester greatly improves the suppression and anti-interference of 50Hz DC data signal in the natural environment of strong power frequency electric field, and reduces the specified blind spot. In terms of the function of instruments and equipment, the acousto-electric technology is used to accept the photoelectric technology, which reasonably gets rid of the difficult problem caused by the impact of natural environmental noise on the designated site. In particular, the large digital display information of common fault spacing eliminates the operator's specific analysis of complex wave type, and replaces the rough distance measurement function of flash detector to a considerable extent. For the common fault cable hundreds of meters long, the designation can be carried out without rough measurement, which is truly efficient, rapid and accurate. Using 15z amplitude modulation radio wave and amplitude detection technology for relative path detection and deep measurement of cable laying, the influence of TV line frequency on the designated instrument in the original equal amplitude 15z video signal is prevented. 4. The fault detection of buried cable is very simple in practical operation. You can turn on the main power switch without shifting gears and selecting functions. Compact structure, exquisite and modular design, which is conducive to on-board maintenance and complete functions. Buried cables are widely used in recent years. Therefore, there are many ways of buried cable fault tester, which are not well understood by rural welders and repair and test workers. There are common faults in the ground buried line. If there are no excellent instruments and equipment and good test standards, the common faults can not be removed within the service guarantee period of the power supply system company, which not only delays time and wastes human resources. And affect normal life and industrial production.
Model Prototype: OXO Handheld Screwdriver
Model Prototype: OXO Handheld Screwdriver
This project focused on creating a low-fi 3D prototype of a potential design for a OXO electric handheld screwdriver with the following specifications:variable speed control you decide the mechanism/interaction and whether it is fluid or distinct settingsscrew-driver selection mechanism (either digital or non-digital your choice) allows you to automatically select and switch between either Phillips or flathead shape and five different sizes of each shape (for 10 total screwhead choices)screw-driver direction selection mechanism (non-digital) to either screw in or unscrewdigital readout (monochromatic, non-touch sensitive) of number of screws screwed and screws unscrewed for tracking your progress as a handypersoncan be used right or left-handedproduct dimensions are a minimum of 6 inches long and must be able to contain a rechargeable batteryproduct weight is between 11.5 poundsFor each of the feature criteria above, I came up with an idea for how I would implement it onto the prototype:Trigger pressure or wheel to control speedDouble wheel selection to change between head type and sizeA switch to control screw and unscrew optionsA digital number display to show the digital readoutA charging port and the end of the handleHere are my sketch ideas for how the features would look on the device:After sketching the prototype, I thought I had a pretty good idea of the layout of the controls but there were some things I realized as I was conceptualizing the design. There were a lot of features to implement onto the screwdriver that would be difficult to fit onto a handheld device so as I was sketching, I tried to consider space as a constraint. Another thing I noticed was that there was a big difference in readability between putting numbers side-by-side and one top of the other.PrototypeTo build my prototype I used cardboard and tape. I made the prototype larger than the actual size it would be so that I could clearly display the features and test the interface functionality with a user. Here is what the prototype looks like:AnalysisTo test this prototype, I sat down with a participant and asked them to screw in and unscrew a screw at a specified setting while vocalizing their thought process. The user was able to complete the task but there were a few features that were unclear.Features that were unclear to the user:Used the Phillips instead of a flat head on the screwThought the unscrew/screw switch was to activate the screw driverSuggested moving the placement of the controlsThings that went well:User was satisfied with the easy controlsWas easily held and comfortable in their handsAble to complete the task without major issuesThe prototype worked well to complete specified tasks but it was a challenge trying to fit all the features onto a small device. Another challenge was how to test a trigger that would rely on users pressure. Without outright telling the user how the device is reacting to their actions, it can be difficult to simulate. I would improve the layout of the controls by minimizing their size and moving the size selection to the handle. I would also use text instead of symbols to show the different screw head types because it seemed to confuse users during testing RELATED QUESTION What are POP materials when it comes to advertising? Here are the most common POP signage. The Pop Up Counter These are used when a brand wants to give out product samples or do product demos. Image source: Portable Counters | Exhibition Tables | Fast TAT AUS Wide The Cardboard Display Stands Bunting Flags Bunting flags are not as common as before however a small number of brands still use this. Image source: Shelf Talkers Product Bins These are some of the most popular displays that brands use to promote their products in-store.
Voltage Meter and Voltage Tester?
Voltage Meter and Voltage Tester?
In response to Almond's answer: I am a professional installer, and my digital multimeter is the most-used tool in my box. If you are going to be working with car audio, as a profession or a hobby, then you need to own a multimeter. A test light does not cut it. You do not have to spend a lot; you can get a $20-$40 meter at Sears or Radio Shack that will work perfectly well. A test light wo not show you the difference between 9 volts and 12 volts at the radio power supply, but that can be the difference between a working radio and a dead one.1. Why do you have to use the nominal voltage of the transformer for the no-load or open-circuit test?I think I understand your question so first here's a representation of the equivalent circuit of a transformer: -Under no load conditions the only current flowing into the primary is the current taken by the "parallel components" Xm and Rc. For a normal power transformer that current will be small compared to the current normally taken by the primary when the secondary is driving a load. For that reason you can ignore (short circuit) Xp and Rp and of course the secondary is only producing an open circuit voltage so Rs and Xs are of no consequence.The "thing" in the middle that looks like a transformer is a perfect power transformer and because no current is being delivered to the secondary that perfect transformer takes no current.So, it boils down to Rc and Xm being connected to the incoming power and no further components need to be analysed.I was wondering why exactly you have to use the nominal voltage of the transformer for the open-circuit or no-load test.There is one very important reason for this and that is core saturation - if you do not use the normal applied voltage you will either have too much saturation or too little and you wo not have a representive measurement. Saturation of the core is non-linear with voltage so it's important to use the right applied voltage. Look at the BH curve to see why: -You can see that it is very non-linear once you start approaching saturation and, most transformers will be designed to run at a magnetic field strength (H) in the early to mid areas of saturation. This of course means a smaller transformer size and less iron. Commercial reasons prevail.So, to do the test justice you need to run at nominal levels.If you were doing a test to find out the values of the series components then you would run the primary from a variac and short circuit the output. The sort of voltage that is now applied is a fraction of the nominal voltage so core losses are low (very linear BH curve) and eddy current losses (Rc) are also quite small.2. Measuring floating gate potential with minimal leakage currentIf this is for professional use, use an Electrometer such as this. This type of meter has an input impedance of 10^14 which is adequate to measure voltage in the leakage environment you have. There are a huge range of devices spanning low cost to high cost. You could build an electrometer if you were willing, and here might give you a starting point using an LMC662.If you are simply DIY experimenting then you can build/buy an electroscope. These are not easily calibrated, but can provide good comparative measurements of charge on a point. You could get something like this for $50 or less3. Extension Cord for 20 amp load and other heavy loads?Every 30' is about 2% voltage drop. Voltage is indirectly proportional to Amperes thus as Voltage goes down Amperes goes up. Extension cords are for temporary applications agreed but over time your motors will wear out faster. If I were in the carpet cleaning business I would only use 10AWG for all my needs regardless.4. Bad voltage regulator?There would be no way to tell for sure if something was frying them, but would suggest to you this would be highly unlikely. It is completely within reason for the rebuilt alternator to have gone bad ... that's why they have a warranty. Yes, it's a PITB to take on and off, but at least it did not cost you anymore than an extra trip to the store.
Best Cable Tracker for DVR, Streaming, and Cable Boxes
Best Cable Tracker for DVR, Streaming, and Cable Boxes
Amped Cable Tracker is a tool used to measure cable data such as total length and channel count. It's a great piece of software which can help get better value for money out of your cable bill.As technology advances, so does the market for cable companies. The market is growing rapidly and Cable companies are now finding it harder to keep up with new technology and services offered by digital companies like Netflix, Hulu, Amazon Prime Video, etc.As more people are getting internet access through their standard TV set-top boxes and smart TVs there has also been an increase in online video streaming services offering TV shows and movies.A cable tracker is a software designed to help consumers track their favorite TV shows, movies, and sports. It does this by finding the best available cable channels available in your area to stream directly from your DVR or streaming device.In addition to cable channel availability, the software also searches for the most recent episodes of a given show or movie based on what you have watched recently. This tool uses information gathered from all over the internet including Reddit, IMDB ratings, and metadata stored in Netflix databases. In addition to choosing specific programs for viewing and comparing them directly with a user’s current moods and preferences; it also allows users to set up automatic reminders for future viewing sessions so that they can be more easily entertained on their vacations or when they are at work.Many cable companies are implementing new ways of tracking their customers’ activities. As a result, we can see that many cable companies have hired AI writers to generate content on a specific topic for them and also come up with ideas on how they can improve their service.Amped Cable Tracker is a cable tracker that records every channel that an individual watches. It does this by analyzing the time that a viewer spends watching different channels. Based on this data, the algorithm can predict which channel will be the most popular, based on their viewing habits and preferencesThe AI for cable tv is getting better day by day. We don’t need to wait for it to get perfect, we can just keep it as it is now. That way, we get ready-made content from where our eyes and ears are our best friends. We also know what people want and how they like to watch TV; so we can create interesting content based on these insights .Section topic: Content Marketing Automation with Salesforce (CMA)Introduction: CMA helpsThe Amped Cable Tracker provides detailed information on cable TV and satellite TV. It’s a tool to help users dial in the channels, watch programming and keep up with upcoming promotions and events.Cable TV is a highly competitive market and customer service is considered to be important. As a result, it's crucial to provide the best customer service possible. Amped Cable Tracker - the company's automated content generation tool, helps companies to generate content on different topics such as:Cable Tracker is a popular and convenient app to keep track of cable TV and internet packages in your house. It’s a free download from the app store.Section topic: Amped Cable TrackerIntroduction: This application allows you to easily keep track of cable TV and internet packages for your home."The cable company is always looking for new ways to improve service. They are constantly trying to figure out how to make it better and more convenient for their customers and they know that the best way of doing this is by analyzing how their customers use their service."To do this, they have installed a device called a Cable Tracker device in each of the thousands of homes that they serve. The tracker looks at the signal strength of each TV through its satellite dish and sends live data about how much signal is being received by each TV and what channels are being received by each TV."This data is sent over the Internet so that it can be analyzed by any computer with an Internet connection."Section topic: Firewall SoftwareIntroduction: "We like firewalls because they help us keep ourWe are living in a world where everything is connected and information flows across the internet. However, it’s not always easy to talk to people when you are thirsty for information.This is where cable tracker software can help. It allows people to send messages to different websites and applications at the same time, regardless of their location or devices.
Cable Tracker to Find Cable Companies in Your Area
Cable Tracker to Find Cable Companies in Your Area
The introduction of cable trackerToday's cable television is a mix of digital and traditional TV. Cable companies are going to lose their dominant position if they don't adapt and cater to the changing needs of their subscribers.Tips for cable trackerTo be successful, you must strive for perfection. You must be able to get all the right information and convince your audience of its importance. However, there is no such thing as perfect information and content. There are always going to be surprises that will catch your audience by surprise and make them unhappy with your work.Don't let this happen to you! Make sure that you get the right information on time and use it properly so that it gets noticed by the audience, not ignored.How to use cable tracker?You can get a cable tracker from an Internet browser. It is an extension that helps you to identify websites and apps that you are interested in. You can use this extension to find cable companies' websites and apps in your area or even find the best deal for your next TV or broadband subscription.If you have a low-end TV, it may be very expensive to have cable company installed in your house. The reason is that it takes time for the cables to get connected, so they need money to be invested on the installation of its network in your home. It is worth knowing that there are many ways of getting this technology installed at lower cost - using a rental service, for example, since it costs less than buying one.This method will save you money because if you decide to buy aThe specifications of cable trackerSmart TV’s can be used for many purposes such as:The product instructions of cable trackerThis article provides a comprehensive overview of the product instruction of a cable tracker.The product instruction is the first thing every customer sees on any cable set-top box. The instructions are usually written by engineers, so it's easy to miss important details. That's why we need a concise and accurate overview so that customers can easily find what they're looking for.The application of cable trackerCable tracker is a marketing tool used by many advertisers to track the progress of their ads across different platforms. It gives the advertiser a real-time view on the performance of their targeted advertisements.
Free Wire Tracker, Free Wire Tracker Software
Free Wire Tracker, Free Wire Tracker Software
Here is a list of the best tools for monitoring your emails.No need to send email notifications through other app when you want to track your emails. Check out the following list for all your email tracking needs.Section topic: Best Email Tracking ToolsIntroduction: In this section we have compiled a list of some well-known, popular and professional tools for any type of email tracking needs.There's an email tracking service by the name of WebTrack. It's a useful tool to monitor your emails and all kinds of information can be tracked through it.Section topic: Should I delete my Facebook account?Introduction: Some people choose to delete their Facebook account when they no longer want to use it, when they feel that it is no longer useful to them. However, there are people who delete their accounts when they do not have any intention in doing so. This is because deleting your account gives you the right to control over all your data, including photos and messages sent or received through Facebook. This article will discuss why this might be a good decision for you and how much you should keep using your Facebook account as well as whether or not you should delete yours altogether.The best way to monitor your emails is to use a tool like Wire Tracker. It helps you track your emails and see what the actual content looks like.For you to know the number of emails you receive, you can use a tool to monitor them. This will show you your most important email and its time of delivery.This section will be dedicated to a specific topic. We will discuss the best tools that are available and which one should be used for tracking content wire.But what is a wire tracker? A wire tracker is a computer lens that you can use to scan photos and video for keywords. Once you have found relevant keywords, you can send them to the appropriate marketing channels in order to generate new leads.We can track our emails with the help of a tool called Wire Tracker. It offers to track your emails from the sender and then save all those received messages to a database for further analysis.A wire tracker is a system to record and track the conversations that are happening in a specific topic. It can be used as a product development tool, to monitor customer satisfaction or success of projects and also for internal communications.The best wire tracker is a person who can make sure that every email is sent correctly. The best wire tracker has the ability to identify and read every email and ensure that it's sent on time.The best wire tracker should be an experienced professional who has extensive knowledge on email marketing campaigns.Wire Tracker is a service that helps organizations to identify who their customers are – based on demographics, location, and other relevant data.When you have a large email list, it can be hard to keep track of all your email messages.A well written email is a great way to put the reader on alert with relevant and useful content. But it is also a much easier task to do than managing the inbox. Luckily, there is an easy solution for that - A good Wire Tracker.This is the most popular content writing tool that helps companies create and manage material for their websites.Wire Tracker is a great tool if you want to keep track of who has written your content, when, and whether they are using it. It allows you to schedule content creation based on deadlines so that you can target individuals for digital marketing campaigns. It also helps to organize your data, organizes notes and provides a dashboard where you can see all of your content management activities at one place.The best wire tracker will allow you to track all of your content, by providing a simple interface. You will be able to quickly find any content that you may have written in the past while you are tracking.Section topic: Best Wire Tracker, and the Best Free Wire TrackerIntroduction: The best free wire tracker will allow you to track all of your content, by providing a simple interface. You will be able to quickly find any content that you may have written in the past while you are tracking.
What Problems Will Be Encountered in the Use of Underground Pipeline Detector
What Problems Will Be Encountered in the Use of Underground Pipeline Detector
As a new type of intelligent stethoscope, underground pipeline detector is used to survey underground pipelines. It is composed of transmitter, receiver and accessories. It is mainly used for underground pipeline positioning, buried depth measurement and long-distance tracking, as well as pipeline insulation fault point measurement and search. The equipment adopts multi coil electromagnetic technology, which greatly improves its depth determination accuracy and target pipeline identification ability. It can accurately track and locate the target pipeline even in the area with dense and complex pipelines. However, due to the complexity and diversity of underground pipelines, a better method is to combine various technical methods for general survey. The common site conditions in the operation of underground pipeline detector are as follows: 1. Track from the joint or handover box. Before the cable applies the transmitter signal, the common connector on the cable needs to be removed to track the target pipe. If all cables are to be tracked from the junction box, the transmitter can work in an inductive manner, placed on one side of the junction box and in line with the cable to be tracked. 2. Long distance tracking cable. In order for the transmitter signal to transmit a sufficient distance, it is necessary to remove the grounding connection of the cable. When the joint or joint is grounded for safety or lightning protection, surge arrester (anti overload) can be used to replace the grounding of the joint or joint, so as to protect the cable and make uninterrupted positioning possible. 3. Is the connector spike. Most cable connectors or connectors will generate spike pulse when the receiver responds. Working experience and understanding the local situation will help the operator to judge whether the spike pulse indicates that there is a connector box. 4. It's a metal guardrail. The cable is usually buried directly under the road outside the road metal guardrail, and the signal is combined with the continuous metal guardrail. The metal guardrail is close to the antenna at the lower part of the receiver, which is difficult to track. When it comes to the receiver, this difficulty can be overcome by making the internal antenna at the lower end flat with the metal guardrail. 5. Street lighting. Generally, the metal column of street lamp and the metal shielding layer of lighting cable are connected with the metal column. At this time, the transmitter signal can be connected to the metal column of street lamp. If the cement lamp post - unless the lighting cable can be connected to the maintenance rack and grounded, the transmitter signal needs to be connected to the metal shielding of the lighting cable. Knowing the relevant location and depth of lighting cables (and other street facilities on the same lighting system) can help track lighting cables. A connection point may apply signals to a large area of cables. It is also feasible to use street lamp posts to apply signals to other power cables, but the signal may be weak because the signal may have been transmitted for a long distance before returning to the substation and can flow out of the system again. At this time, the transmitter can increase the output power mode and increase the output power. This method can locate cables that are difficult to apply signals or inconvenient. For cables coming down from wooden poles, cement poles or lighting columns, the transmitter can be placed in sensing mode to apply a signal by making a right angle to the ground on the pole.
How Does the Power Cable Fault Tester Detect the Fault Point
How Does the Power Cable Fault Tester Detect the Fault Point
How to detect the fault point of power cable fault tester: it is composed of notebook computer, test system, path signal generator, path signal receiver and positioning instrument. It can complete the two tasks of cable fault test and cable data management. Notebook computer for measurement control, data processing and cable data management. The fault test system can measure the distance between the fault point and the test end at one end of the fault cable, and can also be used to measure the length of the cable and the propagation speed of radio waves in the cable. The path signal generator can generate 15KHz, * large amplitude 30V intermittent sine wave signals for finding cable paths. The path signal receiver is used to receive the path signal, find the cable direction and estimate the buried depth of the cable. The locator is used to locate the fault point. Technical performance of power cable fault tester 1. Fault test system ● it can test various faults of various power cables and open circuit and short circuit faults of communication cables and local telephone cables. ● the speed of radio wave propagation in any cable of known length can be measured. ● test distance: not less than 40km ● system error: less than 0.5m ● sampling frequency: 25MHz ● test blind area: less than 5m ● power supply: AC 220V ± 10% 2. Pathfinder signal generator. ● signal frequency: 15KHz ● oscillation mode: intermittent ● output power: 30W ● power supply: 220V ± 10% 2. Test sensitivity of power cable fault tester: the signal source with 50 Ω internal resistance outputs 300Hz signal, and the input signal of the pointing instrument shall not be greater than 10 when the output is maintained at 2V and the signal-to-noise ratio is better than 20:1 μ V。 ● input impedance: not less than 1.2k Ω. ● use 2 × 2000 Ω headphones. ● working voltage: 9V ± 10%. ● operating ambient temperature: - 10 ℃ 40 ℃
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