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, 12 port patch panel 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 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 24 port patch panelcat 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 cable conductor is still in the "big brother", but people have begun to actively seek alternatives.

The introduction of electric wire and cable

Wires and cables used to transmit electric (magnetic) energy, information and realize electromagnetic energy conversion of wire products, wire and cable generalized also referred to as the cable, special cable refers to insulated cable, it can be defined as:aggregate is composed of the following parts; one or a plurality of insulated wire core,and their respective may have the coating layer, the total protective layer and theouter protective layer, the cable can also have additional no insulation of conductor.For the transmission of electric (magnetic) energy, information and realize electromagnetic energy conversion of wire products.

General electric wire and 21 pin scart cable is also referred to as the cable, special cable refers toinsulated cable. It can be defined as, aggregate is composed of the following parts:one or a plurality of insulated wire core, and their respective may have a coating layer, the total protective layer and the outer protective layer, the 21 pin flat scart cable can also have additional no insulation of conductor. The main features of products: pure metal conductor, no insulation and sheath layer, such as steel core aluminum stranded wire, copper bus, electric locomotive line; processing technology is the pressure processing, such as melting, rolling, drawing, stranding / pressing twist; products are mainly used in suburban, rural, user the main line, switch cabinet etc..

terminal block device for voltage requirements

Terminal confirm the selected power terminals to meet the power supply temperature range, the current and voltage requirements to help ensure long-term reliability of the system. In addition, if you choose the power terminal devices to meet the market requirements with a wiring technology, and to ensure user-friendly operation in the design, it will greatly increase the probability of success of the final product. Especially with  displayport 1.2 the effective wall thickness of high-density, extensive use of TC terminals, insulators increasingly thin. This insulating materials, precision injection molds and molding process and put forward a more restrictive and burdensome requirements. Due to the presence of a metal-insulator surface or interior extra material, terminal block surface dust, moisture flux, such as pollution, organic material precipitates and harmful gases adsorbed water film on the surface of the membrane and fuse to form ion conductive channels, absorb moisture, mildew, aging and other insulating materials reasons, will cause a short circuit, leakage, breakdown, poor insulation and low insulation resistance phenomenon. Wiring boards are generally the maximum current 10A Voltage 250V, plug and socket contact is the Department has resistance, current will flow through the heat, the maximum current of 10A refers good contact, the telephone connector  contact through the maximum current; Voltage 250V means wiring board insulation can withstand the maximum working voltage exceeds this value may leak. 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 or insertion into the terminal wiring central cavity. The total separation of adverse swap terminals and other causes of excessive force, and it is a common disease. These types of failures are generally able to detect and eliminate the use of the pcb spring terminal block  inspection process. To make the accuracy of various electronic devices, high stability, in addition to a stable power supply, but also must have a stable reference potential. Insulated copper wire can be used as a larger cross-sectional area leads directly connected to one end of the reference potential, and the other end for electronic equipment DC ground. Anti-static grounding and shielding grounded to prevent static grounding intelligent building computer room within a dry environment to interfere with electronic devices carried called anti-static grounding. To prevent external electromagnetic interference, ground the shield electronic devices and equipment inside and outside the outer shell or worn metal tube, called the shield grounding.

Resolve on terminal block rated voltage, rated current

With the innovative connection technology, more and more connectivity products are widely used in research and development by one, the common terminal on the market today have a rail terminal blocks, PCB terminal blocks, spring-type terminals, and so on.
For terminal block itself, rated current, rated voltage of two cognitive attributes is essential, there are two attributes do the music for this specific analysis: Rated voltage, also known as operating voltage, it mainly depends on the insulating material used in the machine even , the  WISDOM printer usb cable spacing between the size of the contact pair. Some components or devices at less than its rated voltage, may not fulfill its proper function. Rated voltage terminals should be understood as a matter of fact manufacturer recommended maximum operating voltage. In principle, the terminal row below the rated voltage can work. I tend According terminals withstand voltage (dielectric strength) indicators, in accordance with the use of the environment, the security level required for the rational use of the rated voltage. In other words, the same pressure indicators, depending on the use of environmental and safety requirements, can be used to different maximum operating voltage. It is also more in line with the objective usage.
Rated current, also known as the operating current. terminal block with the same rated voltage, lower than the rated current WISDOM displayport cable  situation, terminals generally work well. In the terminal design process, is through terminals designed to meet the thermal requirements of the rated current, because the contact to have the current flows due to the presence of conductor resistance and contact resistance, exposure to heat will. When it exceeds a certain limit heat will destroy the insulation and terminals form contact softening of the surface coating, resulting in failure. Therefore, to limit the rated current, in fact, want to limit the terminal block inside  WISDOM barrier terminal block temperature does not exceed the design value. In the choice of when to pay attention to the question is: for multi-core terminals, the rated current must be derated. This should cause a large current situations in importance, such as φ3.5mm exposure to the general provisions of the rated current of 50A, but in five core derated to 33% of the time used for each core is only rated current 38A, Number of cores The more, the greater derating.

terminal block industry is flourishing

Our industry is flourishing terminals, manufacturers continue to product technology in various fields, external optical design, business management and other innovation. International Association Secretary-General Luo Baihui mold research found that the development of the  network cabinet domestic terminals of the main subject of talent, the concept of market acceptance, the impact of the hardware equipment and other aspects, terminal block appeared the following characteristics: The basic situation is "fierce market competition, the regional uneven development, market collaboration is poor. " Concentrated in major producing areas of the terminal resource advantages, vigorously integrate and enhance the overall competitiveness of producing the terminal is to promote the healthy development of the industry for a long time the only way. Shortage of innovative technical talent. Subject to the influence of the traditional concept of occupation and cultural environment, the currentreal dramatic shortage of technical personnel engaged in the manufacturing  WISDOM crossover ethernet cable sector. China is now a structural shortage of labor, terminal block labor shortage, shortage of senior technicians, a sharp rise in manufacturing costs. Luo Baihui that talents not only enterprise interoperability skills training in practice, universities and even the whole society need to strengthen the cultivation of industrial-technical personnel.
Processing equipment technical constraints. Control systems and features lagging development has restricted the development of China Terminals industry bottlenecks.
Development of the terminal industry, not just rely on businesses and practitioners in the industry efforts, but  WISDOM ethernet cable also need to get the support and trust of consumers, the current total number of domestic consumers to "the weak and strong external product quality," the concept of subjective weakening quality and quality of domestic terminals. It has also become one of the important reasons for the domestic terminals is difficult to form the absolute nature of the brand and market share. Analysts believe that as long as people outside the industry by working together, will be able to build national brands belong to Chinese enterprises and brand products 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.