The types of cable conductor

Wire and cable conductor by one or a plurality of mutually insulated and outer insulation protective layer made of, will power or information transmitted from one point to another by wire. The conductor is its core, lost the conduction effect of conductor, cable will lose its value. In the copper and aluminum and other metal conductor as the representative of the "traditional forces, how to resist the" to "aluminum alloy, non fiber, carbon fiber and other new materials" representative of the "new power", it becomes more and more attractive to look forward to. At present, the metal conductor common according to the conductive arrangement, followed by gold, silver, copper, aluminum, iron (steel), but considering the application to the wire and cable connectors conductor on raw material costs and other factors, copper and aluminum are the high cost, especially copper, gold, silver, price is low, conductivity better than aluminum, is the most commonly used cable conductor. Copper conductor with the national standard cable of the oxygen free copper, electric wire and cable industry is a heavy material light industry, according to the relevant statistics show that, wires and cables with copper content of copper consumption accounted for about 60-70%. Copper conductor is a core component of copper core cable, regardless of how changes in external technology, progress, copper conductor costs can account for the total cost of cable head, reportedly as high as more than 75%. With the development of China's copper resources are depleted and the international copper prices rise, although the copper wire and crossover ethernet cable conductor is still in the "big brother", but people have begun to actively seek alternatives. Aluminum mineral resources in China is extremely rich, is one of the world's ten largest bauxite resources in the country, to maintain reserves of 25.03 tons of resources. As early as in 1957, our country has put the "Al generation copper" identified as national technology policy. In twentieth Century six, seventy time, due to copper as strategic materials subject to regulations of trade, a large number of domestic aluminium is used as the main material of conductor transmission cable. However, compared with the copper conductors, pure aluminum conductor conductor resistivity, low melting point, poor oxidation resistance, poor mechanical strength, cause problems often overheat, corrosion, short circuit and so on, in the early ninety's, he gradually withdrew from the low-voltage power distribution market, but there are still used in high voltage transmission field.

The definition of terminal block

Terminal is used to achieve a accessories electrical connection, the pcb spring terminal block connector into the scope of the industry. With the increasingly high level of industrial automation and industrial control requirements become more stringent, precise, terminal blocks dosage gradually rise. With the development of the electronics industry, the use of the terminal more and more, and more and more types. Currently the most widely barrier terminal block used in addition to the PCB terminal, there are hardware terminals, screw terminals, spring terminals, etc., in the power industry have a special terminal block, terminal box, above all terminals, monolayer, bilayer , current, voltage, ordinary, and the like can be broken.

WISDOM terminal block is a little drawback

"Interrupted multiple lines using Terminal" (especially touched electrical power, the current is large, the impact of heat on the line terminals working properly) need to pay attention, and the presence of risk.
Its long-term risks, terminal block is not short-term. Because of the time, on screw terminals will corrode, subject to thermal expansion and contraction, will naturally loose, copper oxide, and so some of WISDOM fiber optic connectors  the reasons, resulting in poor contact heat, and accidents.
Buildings should now minimize the use of terminals, whenever possible puncture clamp. Screw terminal called the Dragon three rotating terminal! Originated in the United States! After the production of imitation Taiwan! There are currently only in the production of Taiwan's Golden Pen!
Wire terminals for easy connection and it WISDOM rca cable  is generally used to connect the point source line clockwise twist in a very simple, terminal block is going to take a few shares of wires into the appropriate types of terminals connected together and tighten the wires wiring applications, it is actually some sealed inside an insulating plastic sheet metal, wire can be inserted into the hole at each end, for tightening or loosening screws, such as two wires, and sometimes need to be connected, and sometimes WISDOM scart splitter  need to disconnect, Then you can use the terminal to connect them, and can be disconnected at any time without having to weld them together or intertwined, it is convenient

Applications range of terminal block

Now there will be the best day of outdated technology, the ever-changing technology is an inevitable trend, science and technology from social practice, serving the social practice of modern science is booming along the direction of getting better, the changing of the times, technology innovation, science and technology that we humans have been on the road constantly explore, filled with challenges and obstacles on this path. Every era of progress will make us pleasantly surprised, innovative things are big and small, some things, though small, is not a small effect, as the terminals, a simple device consisting of plastic and metal, so that the electrical and mechanical industry is extremely useful. So what is the terminal it? In fact, while  WISDOM fiber optic cable the terminal in order to facilitate the application of the wire connection, it really is a piece of insulating plastic sealed terminal block inside the sheet metal has holes at both ends of the wire can be inserted, tighten or loosen the screw, such as two wires, need to be connected or disconnected, the terminal can be used to connect or disconnect them, without having to weld them together or twisted together, it is convenient. Suitable for a large number of wires each link in the power industry have a special terminal block, terminal boxes, terminal blocks is above all, there is a single layer, double-decker, there are current, voltage, there are ordinary, there etc. can be broken. A crimp in order to ensure reliable contact with the area, and to ensure a sufficient current through. In a word, terminal block occupies an important position in the course of the operation of the machine, and the terminal block must comply with labeling, in order to avoid accidents.
Entertainment is now totally dependent on the  WISDOM rj11 modular jack work of human life power, no electricity, live entertainment will interrupt the work, it will stagnate. Mobile PC cameras, as well as many other digital electronic products and home appliances products. Common characteristic of these products is the use of electricity, the most important is that they are equipped with a variety of lines, black and white, long, short, thick fine. Power cable, data cable, cable to connect a variety of electronic products that we need to use them to work properly, in order to achieve perfect our services and features you want.
These kinds of lines, they have a port, which is the use of these ports and a variety of devices to be linked. For example, cable, there  WISDOM dvi to hdmi adapter are two crystal head, a connection switch, a connection to our computer. Crystal Head is a terminal block. USB data line interface is also a connection terminal. Chargers end link these ports also supply high current terminals. Types of terminals has thousands of terminals is only one well-known brands on the answer more than three thousand kinds.
In addition to computers, digital products, home appliances, etc. all connect the power plug or the port can be called terminals. Large areas of the terminal application is astounding. Terminals in everyday life has reached the point where everywhere. Therefore, the terminal market is very large

barrier terminal block content and methods of detection

Current terminals connected technologies, including screw connection, spring connection, fast connection without stripping the three technologies, which represents the development trend of global connectivity technology. Rich variety of products are widely used in various industries on electrical equipment: electric power, petrochemical, automation, machinery, ships, railway transport, communications, building automation and so on. Terminal modular barrier terminal block are combined to form a different wiring from the application technique, should be widely accepted worldwide. There plug in terminal block  are music to analyze common problems on modular terminal inspection job. Modular terminal blocks test content and side 1) flag should model specifications, voltage, and the relevant certificates and other signs, and should be clear and correct. Refer to the model. 2) the appearance of colors to be consistent with the model, color uniformity, there should be no bubbles, scratches, damage, rust and other negative phenomena 3) barrier terminal block structure size measuring its height with a caliper, mounting holes, etc., should be consistent with the model structure size and installation requirements, using the wiring terminal screws must be plated, and subsequently installed smoothly, and can not slip off the screw phenomenon. All metal parts are not allowed to rust oxidation and other undesirable phenomena. Wire connection requires the use of brass studs, available magnet test, you can determine when the two do not attract as brass. 4) barrier terminal block the ability to take an examination (test terminals are specified) single wire diameter and a minimum diameter of the largest trials were within the range of bare 8-10mm, access terminals in the locking screw, use of 15N force could not pull the power cord, and swing up and  WISDOM mini usb connector down or left and right wires 5 batteries will not be cut off at the bottom of the terminal screw threads, wires or removal without incision shaped wire visually.
5) flame test (glow wire test) flame rating of 94UL-V0. Insulating material retaining live parts and external parts of insulating material providing protection against electric shock should be able to withstand the following tests: glow-wire test 650 ℃ in no visible flame, the flame goes out without any ongoing or after removal of the glow-wire in the 30S, combustion or melting, etc. should not fall under the level laid 200mm ± 5mm sample of tissue paper on fire or cause burning pine boards. Each batch sampling 1-3Pcs. 6) Heat test (ball pressure test) Isolation parts of insulating material Insulating material of the outer member and the fixed live parts should have sufficient heat resistance. Test Method: The test conditions for heating the chamber 125 ℃ heat resistance test, the surface should be placed in the test  dvi adapter component level, a steel ball with a diameter of 5mm 20N pressurize the surface of the test piece, if this surface is curved in the test , should be supported in the spherical part of the pressure, the ball is removed from the samples one hour, the sample was immersed in cold water to cool 10S, measurement of the indentation of a diameter not exceeding 2mm. Each batch sampling 3-4Pcs.

development direction of barrier terminal block

CAGE CLAMP  connection technology developed successfully changed the pattern of development in the past rail-mounted terminal products, shortening installation time extremely well connected by the partners to enhance the reliability of praise. In the ensuing decades of development, barrier terminal block connector manufacturers innovative research and development, the WISDOM fiber optic cable  new connection technology is now actively promoting the industrialization of society. There are electric music through the compilation of relevant information, the rail-mounted terminal connection technology products to share in everyone. Classic spring-cage connection technology with rich line-style front and side rail mounted terminal blocks, using classic spring-cage connection technology (CAGE CLAMP ®), barrier terminal block can be connected to a larger cross-sectional area at the same time the range of single-stranded, and multi-strand wire plus a compact spring-cage connection  WISDOM fiber optic connectors technology ferruled the name suggests, a compact spring-cage connection technology into front-line terminals to meet the space-constrained areas of application, which can be connected to a certain range of cross-sectional area The single strand, multi-strand and wire plus a cold joint. Free connection stripping insulation stripping insulation technology uses free connection technology front line type terminals can also provide WISDOM rj45 plug  a mix of spring-cage connection technology (CAGE CLAMP ®) product type. Powerful technology-wire connection terminals designed for high-current applications, suitable for connecting a larger cross-sectional area of ​​the single-stranded by the side of connector technology into a powerful, multi-strand and wire plus a cold joint.

Analysis of the industry slowdown affecting terminal block

Continuous improvement of the circuit board technology makes installation on a panel of UK terminals can carry currents improved a lot , terminal block in order to facilitate the application of wires and connections, it is actually sealed in plastic insulation inside some metal pieces at WISDOM 15 pin vga cable  both ends there are holes you can insert wires , screws for tightening or loosening , such as two wires , and sometimes need to be connected , and sometimes you need to disconnect , this thing can use the terminal to connect them , and you can disconnect at any time , without having to welding them together or intertwined , it is quick and easy. Closed screw guide hole to ensure ideal screwdriver operation. For more than one section of the terminal is equipped with a uniform level of accessories such as side panels, grouping separator , and so on. potential distribution terminal block can be fixed bridge pieces into the terminal side of the central or insert plug -in bridge wiring cavity to achieve. Fault detection and analysis of air flow sensor monomer is essential for EFI engine . Leaf plate air flow sensor is mounted between the air filter and the throttle body so as to accurately measure the amount of intake air of the engine. In engine control, in order to accurately draw the  WISDOM Micro USB cable engine air mass flow required , the density of the air needs to be considered , with the density of the air temperature of the air pressure changes . To prevent air intake due to the temperature change of the quality deviation is detected intake air flow meter with temperature sensors. In order to ensure EFI engine electric fuel pump only works when the engine is running, to prevent misuse , it leaves the plate in the air flow sensor , equipped with electric fuel pump control switch , only when the engine is rotating , with air flowing into the air flow sensor , pump switch was closed, thus starting the fuel pump . When the engine stops , even if the ignition switch is turned on (ON position ) , air flow sensor leaf plate does not rotate , the pump does not work . A crimp in order to ensure reliable contact with the area , and to ensure a sufficient current through . All UK Series Universal UK general specifications of the terminals can be used for EEXe field meets EN50019 standard. Ex- licensed components corresponding certification number can be found in the data connection , and then smaller wire dimensions are similar to the smaller sister model , can be accessed by more than 6mm2 wire cross-section dimensions of the terminal is also optimized . Terminal has Universal mounting foot and therefore can be installed in the U- and G-type guide rail NS35 NS32. Closed screw guide screw holes to ensure ideal operation . For more than one section of the terminal is equipped with a uniform level of accessories such as side panels, grouping separator , and so on.
The maximum current, voltage or maximum power terminals on the note , the sum of electrical power terminals on a link can not exceed the maximum power terminals , do not indicate if the terminal power , bigger current multiplied by the maximum voltage available to get . Like the UK terminals, the WISDOM cat5e ethernet cable  maximum current is 10A, the maximum voltage is 250V, the maximum power is her 2500W. General domestic type of junction box 86 is roughly 100 × 100 mm, with a junction box cover ( or directly with the switch and socket panel ) , and white tin is generally PVC material . In home decoration , electrical junction box is one of the materials, because of the decoration with wire is passed through conduit , and in the joints of the wire ( such as a long line or conduit to corner ) on the use of junction box as a transition with a wire connecting pipe and junction boxes , conduit inside the wire in the junction box connected together , play a role in the protection of wire and wire connections , this is the junction box. Sometimes using a small screw to save space. In the UK a very compact product terminals often the case.

terminal block installation process

The main components of low-voltage distribution inside the control cabinet is the UK Terminal \ TB terminal blocks, control cabinets and terminal wiring inside if there is no messy wiring very difficult to  WISDOM plug in terminal block control , the control cabinet 's role in it is UK Terminal \ TB wiring terminal important, so is the need to control cabinet is a very large number of installed terminals directly affect the safety and reliability of engineering systems , so a standardized wiring installation is particularly important .
First, according to the schematics , terminal block is not in the same position on the UK to the terminal \ TB terminals , do not pick one terminal three lines. Troubleshooting is not so checked, only  hdmi splitter in accordance with the schematic to one pair.
1 , the wire cross-section selection mains ( AC 220 ) line voltage circuits with 1.5 mm2 of ; current loop with a 2.5 mm2 . Ordinary storage batteries with 1.5 mm2 can be.
2 , wiring midnight, seizing good signal to both ends of the wires correspond , so why should the wrong cause .
3 , the most important is to see to understand schematics and wiring diagrams .
Two , terminal block \ TB terminals if novices first trial plan , organize an idea myself , but also about drawing investigation there is no problem, do not know where you can get a first glance, to do so in favor of the line . And after the initial wiring. Wholeness wiring process WISDOM cat6 patch panel  requires cautious, of course , if you are a veteran , then you need to say so much.
UK Terminal \ TB Terminal construction members should carefully read and familiar with the secondary line symbols , to the secondary wiring diagrams and schematics purposes of verification , to ensure a good and correct wiring diagram . Construction of the secondary wiring requirements : according to the drawings , wiring good ; wire and electrical components used bolt petition , plug , welding or crimping , etc. , should be firmly reliable , good wiring ; wiring齐楚清Chu , beautiful ; wire excellent insulation , no shortage of injury ; cabinet wires should not have joints ; circuit number is good, clear handwriting .

terminal block trade information dissemination should have a spirit of pragmatism and counterfeiting

Speaking Terminals Industry spirit may be more people think the spirit of innovation, teamwork, etc., but today Ruisheng Electric to talk about the spirit of pragmatism and counterfeiting. We are in the era of information explosion, the dissemination of information to speed, wide range of  rj45 keystone jack features appear, then how should the information recipient information to select, as publisher of information should be conveyed to the audience what kind of information? It is worth pondering the topic. Rui Sheng Electric Co. should consider the spirit of the enterprise itself and for the industry and society in a responsible manner to convey information is the most valuable. Efforts should be made from the following two aspects in practice!
terminal block information dissemination should have a pragmatic spirit
Is to pay attention to the practical and pragmatic, realistic, this is not just a gesture or a slogan, more is to implement the internal management of enterprises, rooted in the corporate culture to go. The McNair as the terminal manufacturers, increase innovation in the field of product design, production processes and other aspects of the initiative at the management barrier terminal block  level focus on staff training, focusing on shaping the personality of individual employees, so that everyone has the Thanksgiving spirit, willing to take Thanksgiving action, such as helping to fund the company established within the enterprise, that is people-oriented, directly reflects the dedication of Thanksgiving. The information conveyed in the market, we insist on real and effective, real overview of the company's operations reflect real business operations to convey the idea to bring the audience effective information, establish effective customer trust. We never ambitious, not arrogant! Terminal information should have chosen spirit crackdown
Counterfeiting is not a new word, then it should at terminal block information dissemination in how to do fake it? Rui Sheng Electrical think mainly from two aspects. First, the information content of the WISDOM rca audio cable  fake propaganda. In particular, many traditional media information network information, often filled with inconsistent with their own attitude, fraud who did not meet the product positioning itself be impractical publicity, they often billed as the hype. But Rui Sheng Electrical considered as a real manufacturing industry, the brand's speculation should not be fraudulent propaganda phrases, but the genuineness of factory management and the staff of life. Technical information content crackdown followed, the current domestic technology class conferences on the terminal industry already small, and online information disseminators often not professional and technical personnel, so inevitably have some of the industry terminology, technology in the dissemination of information in the industry mistake. Therefore, in the choice of technical information terminals to have the ability to identify the crackdown.

Some questions about the phenomenon of high-temperature heat treatment of the terminal block

Terminals in the column without air gap magnetic system, residual magnetism is too large. The remanence of the pole faces at the gap to the file part of the gap is 0.1-0.3mm, or in parallel with the coil ends of a capacitor 0.1uF. Enable the surface of a core of a contact period of time after the oil or greasy. The core surface rust oil terminals clean, iron surface  keystone jack should be smooth, but not too light, otherwise it is easy to cause delay release.
Throughout the assembly process, must withstand the high temperature and the preheating zone to a temperature by conduction wave soldering the terminal body. Flux shall not affect the terminals, must be easy to remove, can not have any residue. The entire assembly process must be cleaned with water. Preheat temperatures often reach 100 ° C or higher, the peak temperature of 280 ° C are not uncommon. Perforated solder pin must be accurate positioning, size appropriate, balanced place, and have good weldability, this will help the terminal insertion and welding.
In the course of the entire assembly terminals must withstand high temperatures generated by the impact of heat treatment, mainly used in welding preheating and convection preheat the heat conduction to the rca video cable  solder pin and solder to melt tin plate interface. Robust contact welding performance when starting the motor or short-circuit, high current to make contact. Weld head can not be released, with silver contacts easier welding. AC contactor main contacts should be used in anti-welding ability of silver-based alloys, such as silver iron, silver and nickel.
The optical fiber communication (transmission) chain, in order to achieve different terminal modules. The connection between the device and the need for flexible systems, must be able to have a removable (active) device connected between the optical fiber and the optical fiber, the WISDOM cat5e patch cable  light path can be transmitted in the desired channel, and to achieve the purpose of the completion of a predetermined or desired and requirements of the device to achieve this function is called connector. The terminal end faces of the two optical fibers is a precision docking, so that the light energy emitted by the fiber to maximize the output optical fiber coupled to the receiver to enable the optical effects due to its involvement in the system caused by the link and to minimize This is a basic requirement fiber terminals

WISDOM terminal block What does it mean YJV cable

YJV full name XLPE insulated cable , PVC sheathed power cable , suitable for indoors, cable trench , pipeline , tunnel , etc., mainly used for the transmission of electricity is one of the most commonly used types of power cables . YJV cable wires and cables are used , we usually see the majority of the black cable sheath YJV cable , power crossover ethernet cable supply main use is basically YJV cable , YJV cables are civil , general-purpose cable wires and cables belonging to the low-end market . YJV main cable cores 2 cores , 3 core, 4 core , 5-pin , 3 +1,3 +2,4 +1 , prefab branch cables , etc. The main specifications of a square to 240 square feet ( can be customized separately ) . For the transmission and distribution of electricity cables. Commonly used in the urban underground power grid , power plants leads to lines, internal power supply and the mining industry across the river , over the sea underwater power line . In power lines , cables proportion is gradually increased. Power cable is used to transmit and distribute electricity power cable products in the main power system in line , including 1-500KV and above various voltage levels , a variety of insulated power cable.Power cables (power cable), long-term , safe and reliable transfer of large capacity electric insulating power called " power cable ." Outsourcing conductor power cable with high dielectric material and a protective layer of various cables . Its main functions and overhead wires , as in electricity transmission and distribution system, large pcb spring terminal blockcapacity energy use . The difference between the overhead line is the power cable can be laid in a variety of environments , covert security , climate change, free from outside interference ; well be less maintenance and durable. But the structure of the power cable is more complex, multi- manufacturing processes , product prices several times higher than the overhead wires ; therefore not suited to the use of overhead lines generally used the occasion . With the rapid increase in the level of China's economy , the proportion of power cables in power systems is increasing. Such as medium and low voltage overhead lines of urban areas will be gradually replaced by concealed cable lines , suburban and urban centers will use overhead insulated cables.

WISDOM terminal block from the initial progress of Ethernet technology in Xerox Palo Alto Research Center, one of the

Initially progress Ethernet technology pioneer technology projects from many Xerox Palo Alto Research Center in one. People often hdmi to dvi adapter think that Ethernet was invented in 1973, when Robert Metcalfe (Robert Metcalfe) PARC to his boss wrote a memo about Ethernet potential. But I think Metcalfe Ethernet only appeared after a few years. In 1976, Metcalfe and his assistant David Boggs published an article entitled "Ethernet: Distributed local computer network packet switching technology," the article.micro usb connector End of 1977, Metcalf and his collaborators received a "collision detection with multi-point data communications system" patent. Multi-point transmission system is called CSMA / CD (Carrier with Collision Detection Sense Multiple Access), from logo Ethernet birth.

terminal block entire assembly process must withstand high temperatures generated by the impact of heat treatment

Terminals in the column without air gap magnetic system, residual magnetism is too large. The remanence of the pole faces at the gap to the file part of the gap is 0.1-0.3mm, or in parallel with the coil ends of a capacitor 0.1uF. Enable the surface of a core of a contact period of time after the WISDOM Terminal BLOCK  oil or greasy. The core surface rust oil terminals clean, iron surface  should be smooth, but not too light, otherwise it is easy to cause delay release.
Throughout the assembly process, must withstand the high temperature and the preheating zone to a temperature by conduction wave soldering the terminal body. Flux shall not affect the terminals, must be easy to remove, can not have any residue. The entire assembly process must be cleaned with water. Preheat temperatures often reach 100 ° C or higher, the peak temperature of 280 ° C are not uncommon. Perforated solder pin must be accurate positioning, size appropriate, balanced place, and have good weldability, this will help the terminal insertion and welding.
In the course of the entire assembly terminals WISDOM Network Cabinet  must withstand high temperatures generated by the impact of heat treatment, mainly used in welding preheating and convection preheat the heat conduction to the solder pin and solder to melt tin plate interface. Robust contact welding performance when starting the motor or short-circuit, high current to make contact. Weld head can not be released, with silver contacts easier welding. AC contactor main contacts should be used in anti-welding ability of silver-based alloys, such as silver iron, silver and nickel.
The optical fiber communication (transmission) chain, in order to achieve different terminal modules. The connection between the device and the need for flexible systems, must be able to have a removable (active) device connected between the optical fiber and the optical fiber, the WISDOM RAC CABLE  light path can be transmitted in the desired channel, and to achieve the purpose of the completion of a predetermined or desired and requirements of the device to achieve this function is called connector. The terminal end faces of the two optical fibers is a precision docking, so that the light energy emitted by the fiber to maximize the output optical fiber coupled to the receiver to enable the optical effects due to its involvement in the system caused by the link and to minimize This is a basic requirement fiber terminals.