Pay attention to the suitability of choosing ppe

The Deloitte visitor system replaces handwriting registration, innovatively realizes digital registration of visitors, and scientific management. In recent years, information technology has continuously penetrated into all fields of society, especially in government agencies. Represents the country’s technological level.

The Zhenhai District Government currently purchases a large number of visitor registration management systems from Desheng. Through the combination of air defense and technical defense, users can achieve “digital registration, networked office, and safe management”, which greatly improves the efficiency and quality of service for users. Unit image.

Desheng had investigated the visitor management system through market research and specifically addressed the issue of the government's visitors. This gave the Zhenhai District Government the ability to bring fresh blood to the management of the people and free the government from the stage of manual writing at the front desk.

Ring Toys

Ring Toys,Durable Dog Toys,Best Dog Toys,Motion Activated Dog Toys

Ningbo Foil Mori Import and Export Co., Ltd. , https://www.foilmorinb.com

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Recently, the brand Zero Latency, a well-known VR offline experience brand, announced the upcoming 8-person VR experience. This broke the record that the company had previously supported up to six people for synchronization. The first VR experience hall with 8-person games is being tested in Melbourne, Australia, with a site area of ​​nearly 400 square meters.

The company stated that there will be two existing venues and three additional new venues with a VR experience of 8 people.

“Our goal has always been to create epic social VR games that connect different players and create beautiful memories for them,” said Tim Ruse, CEO of Zero Latency.

“In 2015, we created a large-scale VR experience at the warehouse scope level and simultaneously supported six people to synchronize games. Through our exclusive motion capture technology, we have now achieved support for more players at the same time.”

At present, the company has 8 VR offline experience halls in the world, ranging from 200 square meters to 400 square meters. There are no walls and obstacles in the stadium, so players can walk around and explore safely.

In VR, the player will have a virtual image that reflects his actions in real time, which is a very realistic reflection of the strategy, call for help, and battle scenarios.

Zero Latency CTO Scott Vandonkelaar said that the company’s 12 technicians spent six months upgrading the system to support eight players.

“We are already a leader in the industry. The biggest difficulty at present is how to cope with the increased load of wireless data transmission after the increase in number. We must deal with huge real-time game data and network transmission data at the same time.”

Zero Latency currently has VR outlets in Melbourne, Australia, Tokyo, Japan, Madrid, Spain, and several locations in the United States. Boris Bielert, executive director of Zero Latency, said that by the end of 2017, the company will open operations in five other locations in South East Asia; Zero Latency has seen tremendous growth in the past fiscal year with a turnover of .5 million.

                   

Brake Disc

Brake Disc

Brake Disc,Car Brake Disc,Automobile Brake Disc,Auto Brake Disc

Zhoushan Shenying Filter Manufacture Co., Ltd. , https://www.renkenfilter.com

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The integrated wiring system can be divided into seven subsystems, which are the work area subsystem, the wiring (horizontal) subsystem, the trunk (vertical) subsystem, the equipment subsystem, the management subsystem, the building cluster subsystem, and the optical cable transmission. system.

The integrated wiring system is a set of wiring systems specially designed to meet the development needs. For a modern building, like the nerves in the body, it uses a series of high-quality standard materials to synthesize voice, data, images and some control signal systems with a unified transmission medium in a modular combination. After a unified planning and design, integrated in a standard wiring system, the three major subsystems of modern architecture are organically connected to provide a physical medium for the system integration of modern architecture. It can be said that the success of the structured cabling system is directly related to the success of the modern building, and it is crucial to choose a high quality integrated cabling system.

The integrated wiring system is an open structure that can support telephones and various computer data systems, and can also support the needs of systems such as conference televisions and surveillance televisions. The integrated wiring system can be divided into seven subsystems, the work area subsystem, the wiring (horizontal) subsystem, the trunk (vertical) subsystem, the inter-equipment subsystem, the management subsystem, the building cluster subsystem, and the optical cable transmission system.

1. Working area subsystem An independent area that needs to set up the terminal, namely a working area. The working area subsystem should be composed of the information outlet of the wiring (horizontal) wiring system, extending to the connecting cable and adapter at the workstation terminal equipment.

2. Wiring (horizontal) Subsystem The Wiring Subsystem consists of an information outlet for the work area, wiring cables from each wiring device to the information outlet, floor wiring equipment, and jumpers.

3. The trunk (vertical) subsystem trunk subsystem shall consist of wiring equipment and jumpers between equipment and connecting cables between the equipment and the floor wiring.

4. Inter-equipment subsystems The equipment room is where the incoming equipment, network management, and management personnel are placed at appropriate locations in each building. The inter-equipment subsystem consists of various wiring devices, telephones, data, computers, and other host devices and their security wiring devices.

5. Management Subsystem The management subsystem is located in the room of each level of wiring equipment. The management subsystem should be composed of the distribution equipment, input/output equipment, etc., and the management subsystem can also be applied to the equipment subsystem.

6. Building Complex Subsystem The Building Complex consists of telephones, data, and television systems for two or more buildings. A building complex wiring system includes cables and wiring equipment that connects the buildings. ), composed of building complex subsystems.

7. Optical cable transmission system When the integrated wiring system needs to lay a longer distance between buildings, or in the building information system requires the formation of high-speed networks, or with other external networks, especially with the power cable network When electromagnetic interference is required, optical cables should be used as transmission media. The optical cable transmission system should be able to meet the comprehensive transmission requirements of the building and building environment for telephones, data, computers, televisions, etc. When used in computer local area networks, multimode optical cables should be used; as a part of long-distance telecommunications networks, single mode should be used. Optical cable.

The above is the composition diagram of the seven subsystems in the integrated wiring system. It is not easy to remember the integrated wiring system in the graphic understanding, and hope to help everyone.

Vibrating Fluid Bed Drying Machine

Vibrating Fluid Bed Drying Machine

Shengman Drying Equipment Engineering Co., Ltd. , http://www.jsdryingequipment.com

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Text | Fang Yuanying Yang Lin

It is undeniable that Jia Yueting is now in crisis.

A tough move by China Merchants Bank to collect debts from LeTV is pushing him to the corner.

Assets were sealed - this is the worst of many situations. The situation of LeTV is quite similar to that previously understood: In the past, banks may have a grace period after the loan expired, waiting for the company's cash flow to come back for repayment. “But Levision lacks profit points, the longer it takes, the more it loses. Now, it is to see who understands first and who will go to court to sue it,” said one insider.

The person also believes that if LeEco has a timeline that may close in the face of a lot of run, "that is to see which bank reacted to first sue him and closed his account." Prior to this incident, LeTV Accounts that have been opened in multiple banks have been rejected.

The worrying scene has already taken place. On the afternoon of July 3, according to media reports from Tencent and Handan, China Merchants Bank Co., Ltd. Shanghai Chuanbei Sub-branch applied for property preservation from the Shanghai Higher People's Court on June 26, 2017. The application was ruled by the court to comply with the law.

According to the exclusive understanding of 36 Miles, Lefeng Mobile Hong Kong Co., Ltd., as the main borrower, had a loan to China Merchants Bank Shanghai Chuanbei Sub-branch. The loan amount was nearly HK0 million, and the loan was due in mid-July this year.

China Merchants Bank’s move is a prelude to the prosecution of LeTV. “China Merchants Bank Shanghai Branch applied to the court for asset preservation this time, which is a legal measure adopted by LeTV after its unsuccessful interest in Leward Mobile Loan, and after China Merchants Bank’s Shanghai branch has repeatedly received no results.” Merchants Bank responded in a speech tonight.

The contents of the court's specific rulings were: Freeze Levent Mobile Hong Kong Co., Ltd., LeSports Mobile Intelligence Information Technology (Beijing) Co., Ltd., LeTV Holdings (Beijing) Co., Ltd., Jia Yueting, and Gan Wei's bank deposits totaling RMB 1.237 billion, or Seize other equivalent assets.

In this regard, a legal person told 36, according to the contents of the court's ruling, this is the property preservation of China Merchants Bank before the lawsuit, and the bank should also prosecute Jia Yueting and his three companies.

The reason why Jia Yueting and his wife are two natural persons is also involved. There are two main possibilities. One is Jia Yueting’s guarantee with his own personal property and the loan from China Merchants Bank; the other is Jia Yueting as the legal person of LeTV Holding. Joint liability guarantees.

If this single loan itself is concerned, it is not too much of a problem for LeTV. LeTV responded to this issue by saying 36, “We have mortgaged the assets of this loan, and it is sufficient to cover the debt.” China Merchants Bank’s public response also has room to turn around. “The follow-up does not rule out solving problems with LeTV through friendly negotiation.”

However, the fatal consequence of CMB’s move was that it “brought a bad head” to other banks and creditors.

Previously, 36-year-old had reported in the in-depth manuscript “Sun Hongbin entered LeTV, Jia Yueting's harder one hundred days” that LeTV had been experiencing “runs” in recent months. There is no shortage of banks that are worried about recovering funds. There are about one to twenty banks that come to the door, and some banks that are not yet due are still watching.

LeTV still has a lot to wait for. At the shareholders’ meeting on June 28, Jia Yueting acknowledged for the first time that since LeTV saw the outbreak of the capital chain crisis, they had taken many measures and also made some mistakes. As a result, the system and funds of LeTV’s non-listed companies have even More nervous. Received 9.7 billion in funds, but actually paid more than 15 billion yuan. After returning the financial institutions' arrears, there is still no follow-up financial support from financial institutions.

The dilemma that there is no follow-up financial support must be traced back to April this year. For the first time, LeTV's financial report issued non-standard audit opinions from the audited companies since listing, and there are huge differences between some of the performance data and the performance earnings bulletins released earlier. Auditing agencies’ attitudes are alarming for financial professionals. "Before the financial report did not come out, LeTV may still be able to make loans. Now all banks have gone to LeTV to receive loans. No trust or fund has dared to lend it." An informed source told 36.

Now, China Merchants Bank’s tough debt-paying measures have risen by one level compared to the past. According to 36 reports earlier this year, as of May this year, five or six banks have already come to LeTV for debt collection. The approach is to directly “block the door”.

China Merchants Bank apparently believes it is a good idea to adopt such a tough approach today. "After applying for asset preservation, the business risk of China Merchants Bank Shanghai Branch and LeTV is currently under control," said China Merchants Bank.

"Either way, once the court decides that the bank is successful, if LeEco cannot repay the loan by then, the frozen assets will enter the auction process." A legal industry source told the 36-year-old reporter.

In the future, will there be other banks that will study China Merchants Bank to take lawsuits and freeze LeTV accounts to recover debts? It is very likely.

In the banks that have tasted back, China Merchants Bank is probably the first case.

                   

Workshop Fitting Machine

Elbow Fitting Machine.Mutil-Angle Welding Machine,Workshop Fitting Welding Machine

Broad Imp. & Exp. Co., Ltd. , http://www.hzweldingmachine.com

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Pipeline instrument manufacturers

The underground pipeline detector is one of the essential instruments of the water company, gas company, railway communication, industrial and mining, infrastructure, transformation, maintenance, and census underground pipelines. It can quickly and accurately detect the underground without damaging the ground cover. The location, trend, depth of pipelines, metal pipelines, cables, etc., and the location and size of damaged points in the corrosion protection layer of steel pipelines.

The vast majority of underground pipelines are metallic materials that can transmit electromagnetic waves. Based on this principle, Baoying Huachen Power Equipment Factory designed and developed an instrument that can intelligently detect the position of pipelines by detecting electromagnetic waves emitted from pipelines. detector. The underground pipeline detector has a wide range of users in fields such as electric power, telecommunications, water supply, thermal power, gas, petroleum, chemical industry, and urban public utilities with its superior performance, flexible and convenient detection methods.

Here we take the intelligent pipeline detector of Yangzhou Zhili Company as an example to introduce the operation method of the underground pipeline detector in detail:

1. There are three ways to connect transmitter transmitters: direct connection, inductive coupling, and induction. We focus on direct links:

direct connection:

(1) Insert the cable to turn off the transmitter and insert the straight cable into the transmitter output socket.

(2) Connecting with the conductor Connect the red wire of the connecting wire to the target-uncharged metal part.

(3) Choose the grounding method. Connect the black lead of the connecting wire as far as possible from the pipeline and make a right angle with the pipeline. Look for metal ready grounds (such as street signs). Be careful not to go near any underground conductors nearby. If there is no existing grounding point, grounding solder can be used. Ground the solder as much as possible, then connect the black lead. To improve the conductivity. Can be poured under the board (4) Select frequency audio: for good conductors and long distance positioning.

IF: Intermediate frequency radio frequency for audio RF: General positioning of pipelines with dense piping or non-metallic joints.

(5) Select output power Select high and low gears according to specific conditions.

(6) Check loop resistance The transmitter automatically checks the loop resistance and displays the measured resistance in the LCD. The higher the resistance, the weaker the signal of the conductor. The resistance cannot be reliably positioned when the resistance exceeds 30KΩ. It is possible to change the position, preferably on moist land or on the ground, thus reducing the resistance of the ground. If necessary, move it several times to find the point with the least resistance. Note: Be sure to turn off the ground before pulling out the ground. After a good boot.

Warning: Never connect directly with live cables. Be sure to disconnect the cable when connecting directly to the cable.

2. Receiver Path Pursuit (1) The receiver is turned on.

(2) Check the battery level. When the battery level is low, replace the battery.

(3) Set the frequency and press the frequency key to set the receiver to the desired frequency. If active positioning mode is used, the frequency of the receiver should match the transmitter. The frequency of selection depends on the test conditions. Audio and RF have their own strengths. The audio wavelength is larger and the transmission distance is longer, so audio is generally used first. If the signal abruptly vanishes, disappears, or turns or turns accidentally, then the RF verification results must be used again.

Sensitivity setting The "gain plus minus" key is used to increase or decrease the gain and increase or decrease the sensitivity. If the reading of the number is too low, adjust the Gain Plus key so that the bar graph reading is between 40-50 of the entire range. Similarly, if the digital reading is too high, adjust the Gain minus key so that the bar graph reads between 40-50 of the entire range.

Select the track mode and press the mode key to select the crest or trough pursuit mode.

The wave peak method keeps the detector of the underground pipeline detector substantially perpendicular to the ground and moves the receiver above the pipeline. When the receiver is directly above the pipeline path, the maximum value can be obtained by moving the receiver. See below. When you shake the receiver gradually away from the pipeline path, the bar graph and readings (acoustic response frequency) will decrease; when you shake the receiver directly above the pipeline path, the maximum segment of the intensity value will show the path of the pipeline. It is consistent with the receiver's plane. Then start tracking at the transmitter at the right speed and move the receiver left and right. Watch the table for indications of peak readings.

The trough method is required to make the plane of the receiver perpendicular to the direction of the pipeline when tracking the survey, and vice versa. When the plane and the direction of the pipeline are parallel, the measured intensity is the minimum. This feature is often used to determine the direction of the pipeline.

Move the receiver above the pipeline. When the receiver is directly above the pipeline path, the receiver can get the minimum value and the sound response is also very small. When you shake the receiver off the minimum, the meter's reading will rise to a peak: and the voice response will be in its highest segment. As the receiver shakes along the peak area, the meter's reading will start to decay. Then start tracking from the transmitter at a moderate rate while shaking the receiver side to side. Look at signal strength and reading indications.

3. Scan and search (sensing search)

Inductive search is the most reliable technique for detecting unknown pipelines. This search method requires a transmitter and receiver and two operators. This search method is called "two-person search." Before starting the search, determine the areas to search for and the possible directions through which the pipeline passes. And set the on transmitter in induction mode. The first person operates the transmitter and the second person operates the receiver. When the transmitter passes the pipeline, a signal is applied to the pipeline, and then the receiver can detect the signal 20 meters upstream or downstream from the transmitter. The direction of the transmitter is consistent with the estimated direction of the pipeline. The second person is holding the receiver at the beginning of the area to be searched and the direction of the antenna of the receiver remains perpendicular to the direction of the possible underground pipeline. The receiver is tuned to the highest sensitivity that will not receive transmitter signals directly from the air. When the direction of the transmitter and receiver is correct, the two operators move forward in parallel. The operator carrying the receiver moves the receiver back and forth while moving forward. The transmitter applies the signal to the pipeline directly below and the receiver detects the signal. Mark the ground at the receiver's detected peak position. Repeat the search in other directions where there may be a pipeline crossing.

4. Induction skills:

Keeping the Distance Between the Transmitter and the Transmitter In the inductive mode, the transmitter sends a signal to the air in addition to the target pipeline, which may interfere with the probing work near the transmitter. To check that the receiver is detecting a signal in the pipeline, rather than a signal directly from the transmitter, move the transmitter a meter or two, and if the pipeline also moves with it, this indicates that the receiver is too close to the transmitter. Another way to check whether the receiver receives the transmitter signal is to point the receiver at the transmitter. If the response size of the receiver does not change or increase, it indicates that the receiver received the transmitter signal directly from the air. In this case, the transmitter output power is reduced and the receiver sensitivity is reduced. The receiver may also have to leave the transmitter 25 to 30 meters. Do not place the transmitter on the well cover as this will prevent the signal from reaching the pipeline.

Dear Customer:

Thank you for your attention to our products. In addition to this product introduction, the company also has insulation ladders, high-voltage insulation mats, cable fault testers, high-voltage measuring instruments, insulation boots gloves pressure test equipment, power safety equipment cabinets, etc. Introduction, if you are interested in our products, welcome to inquire. Thank you!

seamless steel pipe

Cold Rolled Strip Co., Ltd. , http://www.jypicklingplate.com

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【Global Network Technology Report】July 1, 2017, Beijing - In recent years, the domestic film and television industry has witnessed explosive growth, and PC equipment, which is crucial for the later period of film and television, has also become a focus of attention. Yesterday, Intel’s theme sharing forum for “Technical Innovation in the Post-Film and Television Phase” was held in Beijing. The industry’s big coffee and cooperative partners in the late stage of domestic and overseas films and animation design gathered together to share and exchange the most advanced technologies in film and television. Targeted at the core pain points in the use of PCs by designers such as the film and television industry: Slow, Card, Dayton, Intel and Oprez Designer Computer House, Render G, and Ronglian Technology jointly released the latest Intel® CoreTM TM i9 processor designer PC device and overall solution.

Chen Danlin, Business Director of Intel Commercial Solutions, and three partners released Core i9 solutions. Huang Hua, Sales Director of Intel Commercial Solutions, and Vice President of Base FX delivered keynote speeches. Vice President of China Film and Television Industry Late Alliance and Director of Asia Visual Effects Preview Xie Xie Ning attended the forum and delivered a speech.

Intel Commercial Solutions Sales Director Huang Hua

With a series of new technologies such as 4K/8K, VR, and 120 frames being used in the field of film and television, it not only brings about an upgrade in the quality of the works, but also arouses high expectations of the audience for an excellent sensory experience. This also presents challenges for PC devices. On the one hand, post-production often requires multi-threaded work, which puts a heavy load on the PC. If the computing power and performance are poor, the PC will frequently suffer from slow response, long stalling, and even crashes, which will seriously affect the creators. Work experience and work efficiency.

At the show, Intel's United Opes Designer Computer House, Render G, and Ronglian Technology, three partners, exhibited seven models of computer products equipped with Core i9 processors for late-stage film and television applications. The new Intel® CoreTM i9 processor provides the best performance for advanced gaming, virtual reality, and content creation. As the first product in the new Intel® CoreTM X-Series processor family, the Core i9 is the first consumer desktop processor with 18 cores and 36 threads. It offers superior performance, extreme task processing power, and a wide range of options Can fully meet the needs of creating 2D, 3D and VR designs, greatly reducing the waiting time for opening files, ensuring the smooth running of the computer, bringing an efficient and stable working experience for film and television creators, stimulating their innovative energy, and thus Handy film and television post-production, creating more exciting and exciting visual effects.

Sharing site

A PC with powerful performance and smooth running does not only mean high efficiency and efficiency for film and television post-production and animation design practitioners, but also a chance to turn the fantastic ideas of the world into reality. Chen Danlin, director of business solutions at Intel Corporation, stated: "Intel is committed to promoting the development of the industry through technological innovation. We believe that the powerful PC with Intel Core i9 can provide more support for film and television post-production and help practitioners continue to achieve technological innovation. And breakthroughs.” Intel is providing post-film producers with more and more customized products and services through the new layout of the PC market segment and the joint efforts of the entire industry chain partners.

At the event, special effects producer Christoph Zollinger from PIXOMONDO analyzed the special effects of the international movie and TV project to the audience, and detailedly demonstrated the post-production of the international film and television from the production process to the latest application technology. The joint image coloring director Fang Cheng briefly introduced the digital colors in the film to the audience at the forum. Liu Lu, Director of Chaoguang Animation TD, and Jin Xi, Director of Digital Domain China TD shared the cutting-edge technologies of the current film and video special effects.

Vice President Xie Ning of Base FX and Vice Chairman of China Film and Television Industry Late Alliance said: “This theme sharing session is a platform for post-production filmmakers and animation creators to share and share. The film and television producers from home and abroad use this Take the opportunity to learn from each other and use this opportunity for communication to stimulate inspiration and creativity, understand the international frontier technologies, and jointly promote the progress and development of China's film and television industry.

                   

Silent type diesel generator set

Quiet Diesel Generator,Soundproof Container Generator,Silent Generator Set

Oripo Power Engineering Co., Ltd. , http://www.fsgeneratores.com

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During the use of electronic scales, some electronic scales do not respond to weighing. When most customers encounter such problems, they think that there are problems with the quality of electronic scales. In fact, there are many reasons leading to the electronic weighing scales not responding. Xiaobian made it with everyone today to understand the causes of several non-responsive causes of electronic weighing scales.

Causes of weighing on electronic scales that do not respond:

1. Sometimes when electronic scales encounter water, there is a possibility that the weighing indicator will be unstable when displaying the weighing figures. If it is caused by this problem, you can solve the problem by yourself. Just wipe the water and reposition it.

2. The number displayed on the display is in a jerky state. This phenomenon is usually caused by moisture in the junction box. Open the junction box to check the situation. If it is wet, use a hair dryer to dry it.

3. The display does not return to zero. Generally, the data line is damaged, which results in damage to the line and eventually leads to signal attenuation. Such questions can contact the merchant to ask professionals to solve the problem.

4. The monitor does not have any reaction, generally the connection line has the problem, generally does not damage is the aging, encounters this kind of question, should promptly contact the professional maintenance personnel to deal with in time, cannot examine and open by oneself, lest cause the damage.

5. Weighing is inaccurate, sometimes electronic scales appear inaccurate when weighing, in the case of such conditions can be re-calibrated on the electronic scales, if the problem is still not resolved, the sensor can be checked for damage, If damaged, contact the manufacturer immediately to replace it.

The above 5 points will give you an introduction to the reasons why electronic scales do not respond to weighing. If you still want to learn more about electronic scales, you are welcome to come to our company and thank you for your support.

Motor Warning Lights

Motorcycle Led Driving Lights,Police Motorcycle Led Light,Strobe Light Bar,Led Traffic Warning Light

Golddeer Security Equipment Co., Ltd. , http://www.sybluelight.com

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In the past few years, the average annual demand for high-voltage and UHV underground cables has been maintained at an 11% growth rate. YJV high-voltage cables are widely used, but they also have long failures in their application. They can be roughly divided into: manufacturer's manufacturing reasons, construction quality reasons, design unit design reasons, and reasons for external damage.

First, manufacturers create reasons

According to the different parts, the manufacturer's manufacturing reasons are divided into three categories: cable body reason, cable joint reason, and cable grounding system reason.

1. Causes of manufacturing of cable body Generally, the problems that are likely to occur in the cable production process include eccentricity of insulation, uneven thickness of insulation shield, impurities in insulation, protrusions inside and outside shielding, uneven degree of cross-linking, moisture in cable, and sheathing of cable metal sheath. Poor, etc., Some situations may be more serious. Failures may occur during or shortly after completion of the test, and most of them are in the form of defects in the cable system, causing serious hidden troubles in the long-term safe operation of the cable.

2. Reasons for the manufacture of cable joints High-voltage cable joints have previously used wrap-around type, die-cast type, and molded type, and require a large amount of work to be produced on site. Because of the limitations of on-site conditions and the manufacturing process, insulation layers are not allowed. Avoid air gaps and impurities, so problems can easily occur. The types commonly used in China are assembly and prefabrication.

The cable joints are divided into cable end connectors and cable intermediate joints. No matter what the joint type is, the cable joint failure usually occurs at the fracture of the cable insulation shield because it is the site where the electrical stress is concentrated and the cause of the cable joint failure due to manufacturing reasons is stress. Cone body manufacturing defects, insulation filler problems, oil leaking seals and other reasons.

3. Cable Grounding System The cable grounding system includes the cable grounding box, the cable grounding protection box (with protective layer protector), the cable cross-connection box, and the protection layer protector. The general problem that is easy to occur is mainly because the poor sealing of the box body leads to multi-point grounding, causing the metal sheath induction current to be too large. In addition, the selection of protective layer protector parameters is unreasonable or the quality of the zinc oxide crystal is unstable, and the protective layer protector is easily damaged.

Second, the construction quality reasons

There are many cases of high-voltage cable system failure due to construction quality. The main reasons are as follows:

1, the site conditions are relatively poor, cables and joints in the factory manufacturing environment and process requirements are high, and the construction site temperature, humidity, dust are not well controlled.

2. In the course of cable construction, it will inevitably leave tiny sliding marks on the insulating surface. The semi-conductive particles and sand on the abrasive cloth may also be embedded in the insulation. In addition, during the construction of the joint, the insulation is exposed to the air and the insulation is also inhaled. Moisture, these all leave hidden dangers for long-term safe operation.

3, the installation did not strictly in accordance with the process of construction or process regulations did not take into account the possible problems.

4. Acceptance and acceptance of the DC voltage withstand test results in the formation of a back-EMF within the connector resulting in insulation failure.

5, due to poor sealing caused. The middle joint must adopt the sealed structure of metal copper shell plus PE or PVC insulation coating to ensure the solidity of the seal during construction on site, which effectively ensures the sealing and waterproof performance of the joint.

Third, the design reason

Cable breakdown caused by thermal expansion of the cable causes breakdown. When the cross-linking cable load is high, the temperature of the core is increased, the cable is heated to expand, and the cable is turned on the bracket elevation at the turning point in the tunnel. The long-term heavy-duty operation of the cable has a large amount of peristaltic force, which causes the bracket facade to crush the outer jacket of the cable. , Metal sheathing, intrusion into the cable insulation leads to cable breakdown.

Plastic Board/sheet Machine

Plastic Board Machine,Plastic Board Machine,PVC Imitation Marble Board Machine

Yazhijiang Plastic Industry Co., Ltd. , http://www.plastic-granulator-manufacturer.com

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Light Contruction Machine

Heavy Equipment,Light Construction,Portable Light Towers,Construction Light

Lizhong Industry Co., Ltd. , http://www.nbgrounddrill.com

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Steel Sliding Line Product Features This product consists of a ladder-type copper rod and channel steel or consists of a "T" shaped copper bar and a slotted aluminum bonded phase. High-strength special insulators are used as supports to form mobile trolley wires for feeding various crane equipment. This product has the following features:

1, reliable operation, no power interruption failure.

2, can be used for high temperature, high dust, high corrosion gas and other harsh environments.

3, mechanical strength, not easy to bend and deformation, can withstand a strong short circuit impulse current.

4, according to user needs to set the ampacity, up to 3000A or more, the voltage level can reach 5KV or more.

5, the use of copper or copper aluminum conductor, can greatly reduce the power loss of the wire.

6. After adding an auxiliary cable, a low-impedance trolley wire can be formed and the wire resistance can be reduced several times.

7, the wiring can be in the upper or lower slide.

8, JGH-"I" type trolley wire is more radiating surface, compact structure, easy installation and maintenance.

Sanitary pump

Screw Pump,Electric Pump,Stainless Steel Water Pump

Flowtam Light Industry Machinery Co., Ltd. , http://www.flowtamtank.com

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