Ethernet Tone Generator and Probe Buying Guide

Ethernet Tone Generator and Probe Buying Guide

2021-10-20
NOYAFA
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SHENZHEN NOYAFA ELECTRONIC CO.,LIMITED always endeavors to bring innovative ethernet tone generator and probe to market. The performance of the product is guaranteed by well-selected materials from leading suppliers in the industry. With advanced technology adopted, the product can be manufactured in high volume. And the product is designed to have a long lifespan to achieve cost-effectiveness.NOYAFA has always been working on how to make our brand stand out so that we have strengthened and reinforced our brand mission - offer more authentic and transparent customer services. We have been seriously carrying out the brand mission and have made the voice of this brand mission being heard consistently so that our brand image becomes highly recognizable on multiple channels.At Best Cable Tester Supplier in China _ Noyafa, packaging and sample making are both customizable for ethernet tone generator and probe. Customers can provide design or parameters for us to figure out a solution.
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Introduction of Test Composition of Live Cable Fault Tester
Introduction of Test Composition of Live Cable Fault Tester
Cable fault tester is a commonly used cable fault detection equipment. This equipment is used with a variety of cable fault detection. Its stable performance and accurate detection make the cable fault detection more comprehensive. The work efficiency of inspectors has been greatly improved. Today we mainly explore the composition of live cable fault tester. Test composition of live cable fault tester: 1. Live cable fault tester is composed of the following parts: 1. Instrument host: cable fault flashover tester, referred to as flashover tester for short. Cable path test signal source, referred to as path tester. Cable fault point / path meter receiver, referred to as point meter. 2. High voltage accessories: high voltage pulse capacitor. The utility model relates to an AC / DC dual-purpose high-voltage test transformer. High voltage test transformer operation box. 2、 The test functions of the cable fault tester mainly include: 1. Purpose: it is suitable for low resistance fault test, short circuit fault test, open circuit fault test, high resistance leakage fault test and high resistance flashover fault test of various power cables with different sections and media, high frequency coaxial cables, municipal cables, street lamp cables, ground buried wires, etc. Specifically, there are the following types: (1) testable cables are equivalent according to voltage: low voltage cables and high voltage cables. (2) Testable cables can be divided into: power transmission cables; Control cable; Street lamp cable. (3) The testable cables can be divided into: directly buried cables, cables laid in cable trenches, overhead cables and more than two parallel directly buried low-voltage wires. (4) Testable cables can be divided into: short circuit fault; Phase failure; Low resistance fault; High resistance leakage fault; High resistance flashover fault is described in detail after fault classification. (5) If there is a cable identifier, we can find the cable we are looking for from multiple cables buried in the cable trench, that is, the cable identifier. (6) Both fault test and cable identification are conducted for power-off cables, and fault test cannot be conducted for live running cables. 3、 Introduction to the test principle of cable fault tester: 1. The host of this set of instrument is a host, which is mainly used for cable fault test. 2. It is a rough measuring instrument for cable fault distance, which can measure the approximate distance from the fault point to the cable test end face. 3. The lightning meter can measure the cable length and the propagation velocity of electromagnetic wave in the cable. The test principle of lightning meter is radar reflection method, also known as pulse reflection method. Single end test distance of lightning meter: 15km. Minimum test distance (blind area) of lightning meter: 15-20m. 4. Measurement error of cable fault tester: rough measurement error & plusmn; 1%, system (point) error & plusmn; 0.2m. In short, after accurately determining the fault point, dig a pit to find the fault point. 5. The principle of cable fault detector for finding cable path is to add electromagnetic wave signal to the tested cable and receive the signal of finding cable path through the pointing instrument. The minimum characteristic of receiving electromagnetic signal on the ground directly above the cable is used to determine the buried position of the cable.
Principle and Application of Cable Oscillation Wave Test
Principle and Application of Cable Oscillation Wave Test
1、 Principle of cable oscillation wave test through cable oscillation wave test can not only diagnose the overall insulation of cable, but also test partial discharge and locate defects. The principle is LCR damping oscillation principle. On the basis of completing the cable pressurization, a damping oscillation voltage wave is formed through the built-in high-voltage reactor, high-voltage solid-state switch and the test cable. A sinusoidal voltage wave similar to the power frequency is applied to the test cable to excite the partial discharge signal at the potential defect of the cable. Based on the pulse current method, the partial discharge signal is detected with high sensitivity, and the detection, acquisition and upload of partial discharge signal are completed with high-speed data acquisition equipment. The single test process is about one minute, with high test efficiency and no damage to the tested cable. On the basis of obtaining the partial discharge data, the data analysis software automatically completes the cluster analysis and traveling wave positioning, which is convenient for users to comprehensively evaluate the cable state. 2、 Purpose: the cable oscillation wave test standard passes the field test to check the insulation condition and internal partial discharge condition of the cable without damaging the insulation of the cable itself, so as to evaluate the cable insulation. The high voltage unit of cable oscillation wave test can generate oscillation wave high voltage signal, and the high voltage generator can generate any high voltage of 0-30kv; For the partial discharge test device with no blind area from the partial discharge signal, there is no blind area, and it can detect the cable below 250m for partial discharge test; One laptop can be used for control; External safety control units such as operation software (Chinese / German / English version); Analysis software (Chinese / German / English version); A 7.5m high-voltage connecting line without partial discharge, with anti falling off safety design; The partial discharge under system voltage is less than 1pc III. cable oscillation wave test case analysis through the above understanding, let's talk about examples below, so that you can better understand its actual field use. Firstly, connect the test line according to the instructions, and then turn on the power supply. The waveform diagram during the test is as follows: through a waveform analysis, we found a damaged gap in the outer sheath at about 132M in the field survey, which is the cable insulation damage caused by external construction force. After disassembly, the main insulation is damaged
How to Find and Analyze the Fault Point of Buried Cable Fault Tester
How to Find and Analyze the Fault Point of Buried Cable Fault Tester
On site, the cable to be tested is high-voltage cable, and all three phases are short circuited. Usage when using the cable fault, first separate both ends of the cable from the system, and then connect the red and black clips of the instrument host to ab respectively. The measured short circuit distance between the two phases is 312m, and the total length of the cable is 639m. The same results are obtained when connecting to any other two phases. We determine that all three phases are short circuited. If the user knows the direct buried path of the cable, we can find it within 312 meters, and then use the transmitter red clip in the Pathfinder to connect phase A and the black clip to ground, and use the low-frequency high-grade loop resistance of 580 Ω. Because the cable is buried deeply before and after 312 meters, the depth measured by the 80% method is 3 meters, the gain 66db signal is about 675, and the signal is very stable without obvious attenuation. After the cable path is clear, boost and discharge phase a with high voltage, increase the voltage to 8Kv, fully discharge, start at a fixed point from 180m, and finally find the fault point. After communicating with the customer, excavate the fault point with an excavator for more than an hour. Host function of buried cable fault tester 1. It can measure high and low resistance faults of all cables below 35KV, with wide adaptability; 2. With user-friendly software and full Chinese menu, the key definition is simple and clear, and the measurement method is simple and fast; 3. Excellent fault detection success rate, test accuracy and test convenience; 4. 8-inch color LCD touch screen as the display terminal, the instrument has strong data processing ability and friendly display interface; 5. Sampling high voltage protection measures are provided. The test instrument will not crash and damage in the impact high-pressure environment; 6. The built-in power supply can test the open circuit and low resistance short circuit faults of the cable in the environment without power supply.
Basic Knowledge of Cable Installation
Basic Knowledge of Cable Installation
Whether the cable is installed correctly or not is directly related to our personal safety, so it is very important to learn the correct cable installation method. First of all, we need to understand the precautions for cable installation: first, when the mining cable is placed in parallel with the heating pipeline, it shall be connected with a distance of 2m, and when interleaved, it shall be connected with a distance of 0.5m. Second, when the cable is placed in parallel or interleaved with other pipelines, it shall be connected with a distance of 0.5m. 3、 When the cable is directly buried, the direct burial depth of 1-35kV cable shall not be less than 0.7m. IV. when the cables of 10kV and below are placed in parallel, the clear distance between each other shall not be less than 0.1M, 10-35kV shall not be less than 0.25m, and the distance during interleaving shall not be less than 0.5m. V. the minimum bending radius of the cable shall not be less than 15d for multi-core cable and 20d for single core cable (D is the outer diameter of the cable). 6、 Discussion on 6kV and above cables. A. When placing the cable terminal, the semi-conductive barrier layer must be stripped off. The insulation shall not be damaged during operation. Knife marks and the environment with high and low resistance shall be prevented. If necessary, it shall be polished with sandpaper; The end of the barrier shall be flat, and the graphite layer (carbon particles) shall be broken and cleaned. B. The copper barrier and steel armor at the end of plastic insulated cable must be well grounded, and this criterion should also be observed for short routes to prevent electromotive force at the end of steel armor during three-phase unbalanced operation, even ignition and burning of sheath. Tinned braided copper wire shall be adopted for grounding outgoing line. Soldering iron shall be used for soldering when it is adjacent to cable copper strip, and blowtorch shall not be used for sealing welding to avoid burning insulation. C. The three-phase copper barrier shall be connected with the ground wire respectively. The detailed barrier ground wire and steel armor ground wire shall be led out separately and insulated from each other. The position of the welding ground wire shall be as low as possible. 7、 Fundamental requirements for cable terminal and center discussion: A. excellent conductor connection; b. The insulation is reliable. It is recommended to adopt radiation crosslinked heat shrinkable silicone rubber insulation material; c. Excellent sealing; d. Sufficient machine strength can comply with various operation conditions. 8、 The cable end must be waterproof and corroded by other corrosive materials to prevent breakdown caused by aging of insulation layer caused by water tree. 9、 Crane or forklift must be used for cable loading and unloading to prevent horizontal transportation and placement. Cable car must be used for large cable placement to avoid external force damage to the cable or scratch the insulation layer due to manual drag. 10、 If the cable cannot be laid in real time for some reason, it shall be stored in a dry place to prevent sunlight exposure, water inflow at the cable end, etc. Secondly, it is also a link that can not be underestimated, that is, it is necessary to conduct acceptance inspection on the installed cables to see if there are omissions. 1、 First, the user shall check and accept the cable to see if it is damaged, and the construction personnel shall test the resistance and insulation resistance of each cable with a multimeter to confirm whether the cable resistance and insulation are normal, and record it. 2、 The supervision personnel of the user are invited to accept the whole laying. The main acceptance items are: a) whether the insulation layer is laid smoothly; B) If reflective film is installed, check whether the laying of reflective film is smooth; C) Whether the barbed wire mesh is installed smoothly and fixed. D) After the heating cable is energized, check whether the surface temperature of the cable has increased significantly, and sign on the acceptance sheet for confirmation.
A Brief Overview on the Lcd Cable Tester
A Brief Overview on the Lcd Cable Tester
It displays an "X" to indicate that the idle length is less than 90% of the other wires of the pair and length, and that it is 8.93 m from the tester. The open circuit is located between 10 and 90% of the cable length and is measured at the next end of the connector. Find the open circuits and the function of the pair / length tester using the details in this section.If the pair length measurement is performed under normal conditions, it will be displayed as shown below. The length measurement of the LCD cable tester can be performed under normal conditions and the display is shown below.To test the cable length, connect one end of the cable to the main tester. Always check the cable for errors such as idle, short circuit, reverse connection or crossover. Never use a cable length tester to test a live connection such as a 220 V power supply, as this can cause damage to equipment or people.The CableEye tester also detects diodes embedded in cables, so you can test and learn new cables. When you connect both ends of the cable to a network, the cable tester does the job and you get an accurate measurement of whether your cable is working or not.Simple diode connections are drawn with standard diode symbols, while complex diode networks appear as a floating list in the schematic window. Copper Technicians Kit (MS) POE Kit microscanner (tm) is a POE - - tester that displays available class 0-8-8023AT - POE devices, voltages, service-available passive POE sources, 10G Ethernet cable lengths, cable branches and error distances. The POE kit includes an Intellitone Pro 200 probe that receives active data from the cable via digital audio tracking, six remote controls that locate the cable to be tested and a magnetic suspension strap that allows you to hook the tester on a nearby magnetic surface or hook.MicroScanner2 MicroScanner Poe provides engineers with the vision to verify today's most common voice, data and video services. The MS2 kit Microscanner2 cable verifier displays a graphical wiremap of each pair (length, distance and error) on each end of the device. The MicroScanner series defies convention by displaying key test results, wiremap and cable ID on the other end of each device on a single screen.The next topic is, as in the previous TOC topic, the use of barcode scanners to meet the demand for greater data security and to ensure consistent and fast production tests.The section Settings provides general information about Advanced Cable Tester v2 with the ability to change the Core Settings. In this version new macro instructions include: wait scan (stead of pushbutton wait pb), enter operator name immediately, change operator macro timestamp to record date and time of test, database archive, open and resume log file, resume, add cable, create log file.The Settings section also displays information specific to the Advanced Cable Tester V2 device. The device name appears in the main navigation header of the advanced cable tester web application v2.As soon as the requirements are fulfilled, the Advanced Cable Tester v2 will start to be ready for operation. As soon as the device detects that the cable has been inserted into the two sockets, it enters the test state. When the cable connection module is removed, the device returns to its non-operational state and the user must select a test profile to continue the test.When a valid Cable Plug-In Module is installed and a valid test profile is selected, Advanced Cable Tester V2 is ready. As soon as it is ready, the cable tester runs the test profile until a cable is detected.Consumers can use the portable network cable tester with the cables RJ11, RJ12, RJ45, Cat 3, Cat 5E, Cat 6 and Cat6A. The broad compatibility of the device does not complicate your work in the analysis of cable connections.Selecting, selecting and purchasing a suitable network cable tester can be a complicated and challenging task. Purchasing the right network cable tester can save you a lot of inconvenience and trouble.To help you find the best network cable tester for your use I have compiled a list of test products that work well. I came across the Elegiant Network Cable Tester while working on establishing a LAN connection for a local company. With my extensive experience as an electrician, I can say that this is the best tool for testing cable connections.
When Purchasing a Cable Fault Tester, Pay Attention to These Points to Avoid Entering the Pit
When Purchasing a Cable Fault Tester, Pay Attention to These Points to Avoid Entering the Pit
. the cable fault tester is an important tool for the power part to maintain the normal operation of the cable. It helps the power staff quickly reach the fault point and eliminate the fault in time, so as to ensure the normal operation and smoothness of the cable. Many people have introduced cable fault flashover and Gaozu fault, so pay attention to these points when buying to easily help you avoid stepping on the pit 1. You can't just look at the price, because what you need is an efficient and accurate testing equipment with perfect supporting after-sales service and pre-sales technical service guidance. These should be communicated and determined before purchase. It is worth paying attention to the details such as the list of accessories when the equipment leaves the factory, the use and installation after receiving, whether relevant technicians come to the site for guidance, or whether the use video is provided. The selection of cable fault detection equipment manufacturers is guaranteed. 2. Define your needs. This is to clarify the key parameters of the type and model of fault detection equipment you buy according to the scope of your use. The application scope of power cable fault test is relatively wide. It is compared with the communication cable fault tester, which is used to detect the fault point of communication cable. Many buyers, or purchasing departments, especially some power departments, are separated from the user department and the purchasing department. It is found that many remain unchanged in use, or even have no after-sales service at all. In fact, the basic principles of cable fault tester are almost the same, but the real competition is the service and product quality itself. I hope you can choose a cost-effective power fault detection equipment from the details when purchasing.
Which Laser Distance Meter Fluke Company Doing OBM?
Which Laser Distance Meter Fluke Company Doing OBM?
You have a great idea on laser distance meter fluke and have done its research and knows it can market such a product, but do not really know how to design it or do not have the manufacturing capability to make it. Then you may turn to ODMs. NOYAFA is such a manufacturer. In most cases, ODMs also manufacture the product they design and their clients get the products branded in their own names and sell them in the market. In the case of an ODM, you may have little to no control over product specifications and so you need to set adequate parameters and frameworks within which the ODM needs to work.SHENZHEN NOYAFA ELECTRONIC CO.,LIMITED is a manufacturer specializing in the laser distance meter fluke field for many years. Our laser distance meter fluke is compact in outline for convenient transportation. Remarkable success has been achieved by SHENZHEN NOYAFA ELECTRONIC CO.,LIMITED in laser distance meter fluke field.Customers value partners who strive to understand and take action to exceed expectations. We can make a difference by serving our customers better than anybody else. Contact!· Related Questions:1. Any laser distance meter fluke factories instead of trading companies recommended?As the laser distance meter fluke itself becomes more and more popular in the market, there has arisen an increasing number of factories in China. Some of them are certified and professional in the industry while others are unqualified and unscrupulous, so you should give 100% concentration and attention to the whole selection process. Here, NOYAFA is a perfect choice for you. We are a professional company with a long-standing history. All production processes involving performance testing and quality assurance testing are carried out strictly following international quality standards. The products manufactured by us are ensured to meet the requirements of product certification. ——————— 2. What are SMEs for laser distance meter fluke?There are large quantities of SMEs for laser distance meter fluke. Please ascertain the needs in finding a manufacturer. Location, production capacity, technology, services, etc. are all factors. NOYAFA is focused on this business. The exports to foreign countries make up a large proportion to the total sales. ——————— 3. Reliable company for laser distance meter fluke“Reliable” is a word to mention those laser distance meter fluke manufacturers who can supply quality products at fair price and can ensure the sustained supplies for long-term cooperation. NOYAFA is one of them. We have been involved in this business for decades, with a strong research and development team and a dedicated service team. We are “reliable” because the products which have gone through 5-10 steps in production, and 2-5 checks in quality control, are quality-high. We are “reliable” because our production lines are operating steadily and are suspended just once every year for maintenance. You are welcome to pay a visit to our factory. ——————— 4. Any brands for high end laser distance meter fluke?Yes, though the manufacturing of laser distance meter fluke is started a few years ago, there have been already some high-end brands established to attract target audience with high-end taste. These brands help solidate the impression of the products, bringing extra value to customers with value-added services like warranty, on-time shipment, and dedicated consultation. Though the price of high-end products under these brands is much higher than the average, they continue to take up some market shares as there exists market demands for ultimate quality products.
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.
Difference Between Photovoltaic Cable and Ordinary Cable
Difference Between Photovoltaic Cable and Ordinary Cable
Photovoltaic cables are often exposed to sunlight, and solar systems are often used in harsh environmental conditions, such as high temperature and ultraviolet radiation. In Europe, sunny days will lead to the on-site temperature of the solar system as high as 100 & deg; C. At present, we can use PVC, rubber, TPE and high-quality cross-linking materials, but unfortunately, the rated temperature is 90 & deg; C rubber cable, even if the rated temperature is 70 & deg; The PVC cable of C is also often used outdoors. At present, the national golden sun project is launched frequently. In order to save costs, many contractors choose ordinary PVC cable instead of special cable for solar system. Obviously, this will greatly affect the service life of the system. The characteristics of photovoltaic cable are determined by its special insulating material and sheath material for cable. We call it cross-linked PE. After irradiation by irradiation accelerator, the molecular structure of cable material will change, so as to provide its performance in all aspects. In fact, during installation and maintenance, the cable can be routed on the sharp edge of the roof structure, and the cable must withstand pressure, bending, tension, cross tensile load and strong impact. If the strength of the cable sheath is not enough, the cable insulation will be seriously damaged, which will affect the service life of the whole cable, or lead to problems such as short circuit, fire and personal injury. Radiation cross linked materials have high mechanical strength. The cross-linking process changes the chemical structure of the polymer, and the fusible thermoplastic material is transformed into non fusible elastomer material. The cross-linking radiation significantly improves the thermal, mechanical and chemical properties of cable insulation materials.
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