Status of wire and cable industry

Wire and cable industry is the second largest industry in China, second only to the automotive industry, product variety to meet the rate and the domestic market share of more than 90%. In the world, China's wire and cable output has surpassed the us to become the world's largest cable producer. With the rapid development of China'swire and cable industry, the growing number of new enterprises, the industry overall technological level has been greatly improved.

China's sustained and rapid economic growth, providing a huge market space forwire and cable products, the Chinese market strong allure, makes the world all eyes focused on the Chinese market, in the reform and opening to the outside world in short decades, huge production capacity of China's cat5e LAN cable industry formed to make the world with admiration. As China's power industry, data communications, urban rail transit industry, automobile industry and shipbuilding industry scale unceasing expansion, the wire and cat5e patch cable demand will grow rapidly, the future electric wire and cable industry has huge development potential. In 2008 November, our country to cope with the world financial crisis, the government decided to invest 4 trillion yuan stimulating domestic demand, which has about 40% for urban and rural power gridconstruction and transformation. National wire and cable industry has a good marketopportunity, around the wire and cable enterprises to seize the opportunity, meet the new round of urban and rural power grid construction and transformation.

Storage method of cable

Cable if stored for a long time, according to the position of the cable, should make the following considerations:

1, under the eaves. Cable only in not exposed to direct sunlight or ultra high temperature, standard LAN cables can be applied, recommend the use of pipeline.

2, external wall. Avoid direct sunlight and man-made damage to the wall.

3, in the pipeline (plastic or metal). As in the pipe, pay attention to thermal damage and metal pipe plastic pipe.

4, application of suspension / overhead cat5e cable . Considering the cable sag and the pressure, to adopt what kind of binding mode, cable is directly illuminated by the sun.

5, directly in the underground cable trench laying, the environment is the control of the minimum range. cat5e ethernet cable  trench installation must be periodically dry or moist degreeexamination.

6, the underground pipeline. In order to facilitate future upgrades, replacement of cables, and surface pressure and the surrounding environment isolation, auxiliarypipe isolation, auxiliary pipeline is a better method. But don't expect the pipeline will always keep dry, it will impact on the cable type selection.

Protection measures of cable

With the rapid development of power cables buried underground engineering, a higher demand on the protection of cables, cable protection sleeve is the use ofpolyethylene PE and high quality steel tube after sand blasting pretreatment, dipcoating, heating and solidifying process produced. It is the protection of wire and cable, a kind of the most commonly used electrical insulating tube. Because it hasgood insulation properties, high chemical stability, no rust, no aging, can adapt to theharsh environment and widely applied.

Use the cable protection sleeve protecting cat6 network cable can achieve the followingadvantages: 1, good corrosion resistance, long service life, can be in moist saline alkali area. 2, flame retardant, good heat resistance, can be used in high temperature of 130 degrees and long term deformation, fire is not burning. 3, high strength, high rigidity. In under the road buried without a protective layer of concrete, can roll fastcable engineering construction schedule. 4, cat5e network cable protection sleeve for pipe or pipehas a certain flexibility, can resist the external stress and foundation settlementcaused by the destruction of the. 5, has good performance of anti interference signals. 6, smooth inner wall, do not scratch the cable. The design adopts a socketconnection, convenient installation and connection. The joints with rubber sealing ringseal can adapt to the thermal expansion and contraction, and to prevent sand entering.

Technological characteristics of cable

(1) process flow and equipment layout of production

Production workshop of equipment must be according to the requirement of products and reasonable process emissions, the half finished product of each stage, orderly transfer. Device configuration to consider differences in the production capacity of the production efficiency of the balance, some devices may be configured to two or more,to make the production line's production capacity to balance. Thus the reasonable selection of equipment combination and production site layout, must to balance considering according to products and production capacity.

(2) the organization of production management

Production organization and management must be reasonable and scientific, strict and meticulous, careful and accurate, the operator must be strict in one's demands,according to the requirement of process execution, any link problems, will affect the process smooth, affecting the quality of products and delivery. Especially in multi core cat6 LAN cable , a line on the basic unit of length or shorter, or quality problems, then the whole cable will be insufficient length, scrap. Conversely, if a unit length is too long, it must be off the waste.

(3) quality management

The mode of production of large length of continuous superposition and combination,so that the production process of any link, instantaneous point problem, affect the whole cable quality will. Quality defects occurred in the inner layer, but not found in time to stop production, so the loss caused by the. Because the wire and cat6 patch cable production is different from the assembled products, can be disassembled and replaced the other; any part or process quality problems of wires and cables, is almost unable to restore and remedy for this cable. After the treatment is very negative, not cut short is degraded, or scrap the whole cable. It can not be opened again.

Wire and cable quality management, must run through the entire production process.Quality management and inspection department to the whole production process of tour inspection, operation self checking, process under the mutual inspection, this isto ensure the product quality, an important guarantee to improve the economic efficiency of enterprises and measures.

patch panel concept

patch panel management subsystem is the most important component, is to achieve two vertical lines and horizontal cabling subsystem cross-connect hub. MDF is usually installed in a cabinet or on the wall. By mounting accessories, patch panels can be across the board to meet UTP, STP, coaxial cable, fiber, audio and video needs. Commonly Plug-in terminal block
  used in network engineering has UTP patch panels and fiber optic patch patch. Fiber optic patch panel's role in the management of the cable will be connected subsystems, usually between the main line and the line between the various distribution. MDF industry standard definition: patch panel-- suitable for wiring devices jumper connections. It enables the system to move and change the wiring is more convenient. cross-connect system patch panel-- managed by a convenient form of pairs of connectors. Twisted role in the management of patch panel in the twisted-pair cross-connect subsystems used in each room and the distribution line of the main wiring. Many models UTP patch panels, each vendor has its own product line, and the corresponding cat5e network cable three categories, Category 5, Category 5e, Category 6 and Category 7 cables were different sizes and models, in specific projects , you should refer to the product manual, be configured according to the actual situation. Fiber optic patch panel's role in the management of the cable will be connected subsystems, usually between the main line and the line between the various distribution

12 patch panel mechanical properties

1 pull-out force: The coaxial cable connector with anti-cable tensile strength greater than 50N; 2 Mechanical displayport to hdmi cable Durability: coaxial connector plug after 1000, shall comply with the provisions of the line marked 2.3.1.3,2.3.1.7,2.3.1.8,3.4.2,2.4.3 and 6.2, and the contact surface of the plating layer is still not expose the base material; 4 Digital Distribution All parts are made of materials should have anti-corrosion properties, such as corrosion resistance should be done without preservative treatment; their physical and chemical properties must be stable; must be compatible between the various materials; 5 Digital Distribution combustion performance of all non-metallic materials structures mini displayport cable shall conform to GB/T5169.7-1985 A standard test requirements; 6 conductive elastic material should be used bronze, bronze; 7 conductor coaxial connector contacts inside and outside the region, should be plated an intermediate layer (buffer layer), then gold-cobalt alloy plating thickness.

24-port patch panel panelcat description:

1, environmental requirements 1.1 Working temperature: 5 ℃ ~ 40 ℃; Relative humidity: not more than 85% (30 ℃ pm); Atmospheric pressure: 70 ~ 106Kpa; storage humidity: -25 ℃ ~ +55 ℃. 2, the electrical performance 2.1 Working speed: 2Mbit / s, 8Mbit / s, 34Mbit / s, 45Mbit / s, 140Mbit / s, 155Mbit / s; 2.2 Characteristic impedance: 75Ω (nominal value); 2.3 coaxial connector contact resistance; outer industrial terminal block conductor is not more than 2.5mΩ, after mechanical durability test its value is not more than 2.5mΩ; inner conductor is not more than 10mΩ, after the mechanical endurance test its value is not more than 10mΩ; 2.4 Insulation resistance: the connector between the outer conductor, insulation resistance between the conductor and the cell sheet metal parts should be greater than 1000MΩ, DC voltage measuring circuit is 500V ± 50V; 2.5 Withstanding 12 port patch panel voltage: the connector between the outer conductor, between the inner conductor and the cell sheet metal parts should be able to withstand a frequency of 50Hz, the effective value of the AC voltage of 1000V role 1min without breakdown, no arc; Crosstalk between 2.6 back line defense degree: not less than 70dB (50kHz ~ 233MHz); 2.7 Insertion Loss: less than 0.3dB (50kHz ~ 233MHz); 2.8 Return loss: not less than 18dB (50kHz ~ 233MHz).