2014年2月13日星期四

Household wiring hdmi extension cable to use common sense and some simple introduction

Add a new home appliances, tend to pull the wires, so that the current can follow the wires into the electrical safety. Guide wire is electricity. However, the choice inappropriately wire, electrical safety operations can not. Family usually by using wire as copper or aluminum core, wrapped in  WISDOM Network Cabinet a layer or layers of the surface of the insulating sheath, called the insulated wire. With this layer "coat", even if the lamp is lit, hand to touch the wire, it will not shock. According to the hardness of the wire core is not the same, the wire was divided into hard lines and soft lines, soft plastic wire is made from a plurality of thin copper wire foreskin for frequently mobile electrical devices, such as hanging lamp lamp cord and for iron, electric rice cookers power lines. However, in moist places, such as walls, use insulated wire to maintain the ceiling inside the insulated wire in general, the sets of steel or plastic casing to prevent rot and leak!
Wire laying methods and addresses are not the WISDOM Terminal BLOCK  same, the choice is not the same as the thickness of the wire. In the kitchen room and high ambient temperature corresponding to the local selection of thicker wire, installed in the pipe to maintain them. Buy a new appliance, such as a lamp, microwave ovens, etc., all with power from a cord and plug, you might want to pull a wire when exercising in a convenient local install a patch panel, if still use thin wires generally lamps on unsafe. If power 1000 watt microwave oven, washing machine 500 watts, 300 watts iron, with the use of these appliances, then add a few times current, time use a long, thin wire resistance, poor circulation currents will result in heat and burn the  WISDOM fiber optic cable wire plastic "coat." I usually see some wire charred black plastic sheath, which is the cause of excessive current.
Thus, the increase in home appliances, should check the wiring board had entered the house power wires and line thickness. Plastic wire "coat" is used to maintain the wire, to avoid leakage use, do not use wire, lead wire hanging wires, lights, or the wire wrapped around the handles of the lead wire. Because of this the easiest to wear the wire sheath formed leakage.

2014年2月11日星期二

Cable vga cable connector and causes fever hazards, prevention and treatment

 We in the production, research and life in a variety of electrical equipment, are designed in accordance with certain requirements, connected by wires, lines inevitably there is a lot of electrical connectors and wire connectors. Electrical equipment inside the electrical connector at the factory usually undergo a rigorous inspection and test, but WISDOM VGA CABLE  also put into operation before the test is generally not a problem. The device external wire connectors, usually only found the problem through artificial inspections and checks in order, it is the weak link in the line. I have personally heard head office on the second floor of a research institute where the power switch at a copper and aluminum lugs and Capacity-conditioned dormitory on the third floor of the exclusive long-term recurrent fever lugs, black and emit a foul smelling odors taste and disgust already, resolve to study the heating wire connectors.
Electricity production, life process, due to equipment break wire connectors and other accidents caused by overheating, representing part of the overall electrical accidents, to secure supply, electricity tremendous threat must not be taken lightly. The reason, one is on duty is not strong sense of responsibility, inspections are not in place, the other is the lack of attention to a lot of workers wire connectors, check for hot spots tips and measures. Therefore, the emphasis of the project to install wire connectors to connect, learn to find joints, fever, joint fever prevention and treatment technique is very important.
1 wire connector fever phenomenon and its hazards
Wire connectors fever phenomenon, generally the first performance of the wire around the joint smell, can smell, which is due to the heating wire connectors make outsourcing an insulating layer odor; secondly, wire smoke joints, redness, outsourcing insulating layer black , get angry, or even break. Wire connectors will not only cause a lot of heat energy loss, but will seriously affect the normal operation of electrical equipment, ranging from the current line of work increases, shortening the life of electrical equipment, weight is suddenly interrupted the ongoing production, scientific research, medical surgery and other activities, but also lead to fire and WISDOM utp cable  electric shock, etc., resulting in incalculable losses.
2 wire connector fever causes.
Some construction workers in the electrical installation wiring, often do not pay attention to install Quality: insulating sleeve in place should not install casing; should be used where there is no junction box mounted junction box; even wire splice joints instead of using the method , instead of using illegal methods of hook-shaped connection. Contact resistance of such a large hook-shaped connection method, continuous heat when energized, causes the gradual drying of wood nearby, charring, and finally combustion occurs, causing a fire. Comprehensive analysis of the author may have several reasons: equipment installation, repair joints are not tightened, when the current through the heating may even redness, smoke, sparks, broken wires and switches, electrical connection via wire line column due to sloppy construction, the terminal without washers, gongs cap is not tightened, which also makes contact resistance increases, such as a hotel, the  WISDOM Displayport CABLE distribution box because of this reason, the resulting heat conductor melted bead Cardboard boxes below the falls, causing a fire; long-running joint will loosen some joints when installing quality is quite good, but due to thermal expansion and contraction of the reasons, or long subjected to vibration, causes loose joints, such as the long-term running aluminum joints, the contact surface is no silver or tin joints did not hang, because the contact surfaces have serious galvanic corrosion oxide film, so that the joints resistance increases, very easy to become hot spots; usually small current flowing through the contacts, due to a sudden change in the system, the current suddenly increases, resulting in the contact heating; system short-circuit fault occurs, so that an insufficient capacity overcurrent defective contact or contacts, the momentary sparkle like.

2014年2月9日星期日

If you make hdmi extension cable HDMI

HDMI: HDMI 's English name is "High Definition Multimedia", in Chinese means High Definition Multimedia Interface . HDMI interface can provide data transfer bandwidth up to 5Gbps , can transmit audio signals without compression and high-resolution video signal. At the same time WISDOM RAC CABLE  without having to send the signal before the D / A or A / D conversion, can guarantee the highest quality audio and video signal transmission . On pin HDMI and DVI compatible, but with a different package . Compared with DVI, HDMI can transmit digital audio signals, and adds support for HDCP , while providing a better DDC optional features. HDMI supports data transfer rates of 5Gbps , can transmit as far as 15 meters, sufficient to meet a 1080p video and an 8-channel audio signals . And because the audio signal needs a 1080p video and an 8 -channel is less than 4GB / s, HDMI therefore there is a great margin. This allows it to be connected with a DVD player, cable receiver and the PRR. Also HDMI supports EDID, DDC2B, and therefore has the HDMI device has a "plug and play " feature, automatically "consultation" between the source and display devices , automatically selects the most appropriate video / audio formats. HDMI interface can WISDOM VGA CABLE  provide data transfer bandwidth up to 5Gbps , can transmit audio signals without compression and high-resolution video signal. At the same time without having to send the signal before the D / A or A / D conversion, can guarantee the highest quality audio and video signal transmission . The benefits of using HDMI is: only one HDMI cable , you can transmit audio and video signals simultaneously , unlike now need to connect multiple wires ; Meanwhile, the wireless digital / analog or analog / digital converter , can achieve higher audio and video transmission quality. For consumers , HDMI technology not only provides a clear picture , and because the audio / video using the same cable , which greatly simplifies the installation of a home theater system ....

2014年1月25日星期六

vga cable current market status

In recent years, the serious consequences of China's power cable industry due to product quality issues , integrity issues , financing problems caused aroused widespread concern and strong reaction , but it is all related to the illegal enterprise Executed - light fines , severe punishment. China had too calm dangerously frequent wire and cable industry , many enterprises, especially SMEs are facing " life to death ." In recent years, faced with the economic development of the energy , the power WISDOM Terminal BLOCK  shortage problem of bottlenecks , increasing our investment in terms of power , making the wire and cable industry entered a period of rapid development . However, due to its huge industry output value and profits , coupled with domestic cable companies for more than 90 % of the capacity is concentrated in low-end products , so there are a lot of small businesses to enter the industry . Many small businesses and even desperate , shoddy , causing the rate of qualified products industry is only about 1 /3.
Currently, a strong proponent of the concept of environmental protection in the world , the growing importance of environmental protection for national attention. Using conventional wire and cable PVC, when it abandoned after incineration produces dioxins, lead compounds have toxicity problems when buried processing.
Therefore, the market need for more secure and less environmental pollution cable . Europe , the U.S. and Japan on the hazards associated with the cable attaches great importance to its government not only to emissions from the cable manufacturing process strictly limited, and processing scrap cable monitoring the implementation of a comprehensive , forcing cable manufacturers use materials meet the environmental requirements replacing traditional materials, manufacturing environmentally friendly cable or the so-called " clean cable ."
Developed countries are vigorously WISDOM utp cable  promoting the use of environmentally friendly cables , China also accelerated the promotion and use of environmentally friendly cable , such as Beijing , Shanghai explicitly requiring the use of environmentally friendly cable within its jurisdiction . Therefore , as China's access to the system to improve the wire and cable industry , coupled with the elimination of backward production capacity, the introduction of the policy , there will be a wire and cable companies have been eliminated . Meanwhile, China 's huge market has gradually surfaced wire and cable , how to seize the historic opportunity , how innovation , increased R & D efforts in order to meet both the needs of rail transport or ship building , port construction , is to China 's largest wire and cable manufacturers test . Again, the Chinese wire and cable market should be caught China 's wire and cable business , not cheaper foreign wire and cable manufacturers . To this end, China 's wire and cable companies should actively WISDOM Network Cabinet  union , through technology sharing , experience sharing , financial support , etc., jointly won the huge domestic market .
Traffic signal cables annual demand of 1.5-2 million meters . Visible , increasing the number of railway operating mileage will drive strong demand for rail transportation . At the same time , the demand for wire and cable will be equally strong momentum to rise.

2014年1月24日星期五

The basic process of introduction of plastic wire vga cable manufacturing

1. Copper, aluminum, monofilament made of copper wire and cable commonly, aluminum material, at room temperature, the tensile drawing machine using a die or a number of channels through the die orifice to reduce the cross section, increasing the length, strength. Drawing is the first procedure of each wire and cable companies, the main process parameters are brushed with mold technology
2. Monofilament annealed copper, aluminum single wire heated to a certain temperature, recrystallization ways to  WISDOM fiber optic cable improve the toughness of monofilament, reducing the strength of monofilament, wire and cable to meet the requirements of the conductive core. The key is to put an end to copper wire annealing step oxidation .3. Stranding conductor wire and cable in order to improve flexibility in order to facilitate the laying of installation, conductive core adopt a multi-filaments twisted together. From the conductive core stranded form, can be divided into rules and irregular strands twisted. Irregular Stranded Stranded divided into concentric complex twist, twisted and so special. To reduce the area occupied by wire, cable geometries shrink, while using the stranded conductor pressed form, so that variation of ordinary semi circular, fan-shaped, W-shaped and pressed round. Such conductors mainly used in the power cable. 4. Insulated wire and cable extrusion of plastic used mainly extruded solid insulation type, extruded plastic insulation main technical requirements:
4.1. Eccentricity: extruded insulation thickness deviation is reflected important symbol extrusion process level, most of the product structure size and standard deviation values ​​are clearly defined.
4.2. Smoothness: the surface of the WISDOM RAC CABLE  insulating layer extrusion requires smooth, with no rough surface, charred, poor quality of impurities 4.3. Density: a cross-sectional extruded insulation layer to be dense and firm, not allowed to have visible pinhole to eliminate the presence of air bubbles. 5. A cable for multi-core cables in order to ensure molding degrees, reducing the appearance of the cable, generally need to be twisted round. Mechanism of stranded conductor stranding similar, larger diameter section due stranding, they use no way back twist. Cabling technical requirements: First, eliminate shaped stand up and lead insulated cores twisted cables; second is to prevent insulation from being scratched. Most of the cable into the cable accompanied by the completion of the other two processes: one is filled to ensure stability after round into the cable and the cable; one is lashing ensure no loose cable core. 6. The protective layer of insulation to protect the armored core of the pimple is not hurt, the need for appropriate protection insulating layer, the protective layer of: extruded inner sheath (isolation units) and WISDOM Displayport CABLE wrap the sheath (cushion). Wrapping cushion with a cable instead of banding with processes simultaneously. 7. Armouring laying underground cables, the work may be exposed to certain positive pressure, choose the steel tape armored structure. Cable laying there in both the positive pressure pulling force occasions (such as water, drop a large vertical shaft or soil), should be used with structured inner wire armouring.

2014年1月23日星期四

Process characteristics vga cable wire product manufacturing

1 . Great length of continuous overlay combination mode of production
Great length of continuous overlay combination mode of production, the

impact on the global wire and cable production and WISDOM Displayport CABLE  controllability , which

involves and affects: ( 1 ) production process and equipment layout
Various equipment production plant product requirements must be reasonable

discharge process , so that the various stages of semi-finished products ,

sequential flow. Device configuration to be considered and balanced

production capacity of different production efficiency , and some

equipment may have to configure two or more , in order to make the

production capacity of the production line can be balanced . Thus a

combination of reasonable matching device layout and production sites ,

must be based on the product and production to balance considered. 2 )

production organization and management of production organization and

management must be scientific and reasonable, accurate and careful ,

meticulous , scrupulous operator must perform according to process

requirements , any link problems will affect the process of smooth, affect

product quality and delivery. Especially multi -core cable , one pair or

the basic unit length is short , or quality problems , the entire length

of cable will be enough to cause scrapped. Conversely, if a cell is too

long , must be sawn waste. ( 3 ) the length of continuous quality

management overlay large portfolio of  WISDOM VGA CABLE production, so that any one part of

the production process , some problems occur instantaneously , it will

affect the quality of the entire cable . The more quality defects occur in

the inner layer , but did not discover the termination of production, then

the greater the losses . Because unlike the production of wire and cable

products assembled , you can open other pieces of heavy equipment and

replacement ; either a part or the wire and cable process quality

problems, these cables is almost irreversible and irreparable. Post-

processing is very negative , not sawn downgrade is either scrap the

entire cable . It is not open to reload. Quality Management wires and

cables must be run through the entire production process . Quality

inspection departments to manage the entire production process inspection

tour , the operator self-inspection, mutual inspection process from top to

bottom , this is to ensure product quality , and means an important

guarantee for improving economic efficiency of enterprises . 2 .

Production category , widely material flow processes involved in the

manufacture of wire and cable categories, and pressure from the non-

ferrous metal smelting and processing, to plastics , rubber, paint and

other chemical technology ; fiber material wrapping , weaving and other

textile techniques to metal wrapping materials and metal strip

longitudinally welded metal forming process and so on. Wire and cable

manufacturing a variety of materials used , not only classes , varieties ,

specifications, and large quantities. Therefore, the amount of various

materials , spare capacity , batch and batch cycle must be approved .

Meanwhile , the decomposition of waste treatment, recycling , reuse and

waste disposal , as an important part of management , good material quota

management , attention to conservation work
Wire and cable production, from raw materials and various auxiliary

materials and out of storage , the process of transfer to the semi-

finished product storage, factory , material  WISDOM hdmi wall plate flow, must be rational

distribution , dynamic management . 3 . Special equipment for use with

multi- wire cable manufacturing process characteristics of the industry of

specialized production equipment , in order to adapt the structure ,

performance requirements of cable products to meet the large length of

continuous high-speed production requirements as much as possible , so as

to form a series of cable manufacturing equipment . Such as extrusion

machine, cable machine, stranding machine, around the charter series.

Closely related to the development of wire and cable manufacturing

processes and equipment , and promote each other. The new process

requirements, to promote the emergence and development of new specialized

equipment ; conversely , the development of new equipment , but also to

improve the promotion of the development and application of new technology

. Such as drawing, annealing , tandem extrusion line ; physical foaming

production lines and other special equipment , wire and cable

manufacturing process to promote the development and improvement , improve

product quality and production efficiency of the cable.

2014年1月22日星期三

Home improvement wire vga cable fire precautions

Fire caused by improper renovation construction and renovation is one of the main home fires, in which 30 percent of residential fires are caused by improper construction or old electrical wiring caused. Therefore, electrical wiring fire in the home renovation process can not be ignored. 1, home decoration common wire and cable
Power wires: power cable conductor with an insulating layer of outsourcing, communication cables: mainly used for transmission of audio, 150kHZ and below the analog signal and 2048kbit / s and below WISDOM Terminal BLOCK  the digital signal. Common household audio communication cables audio cable, telephone lines, cable, etc. 2, wire and cable optional method
The right to buy the electricity wires and cables to ensure the safety of home renovation process also. Therefore, the time required to buy wire and cable pay attention to two things. Home Improvement Tips to buy electric wire and cable wire communications cable
Suitable for use where the socket wiring, face to face, such as audio cable power lines, telephone lines, cable, etc.
2, see the quality, appearance and smooth round, bright color uniform, fine texture; has certification mark, the manufacturer, such as the wire diameter, yellow-green ground with a small exterior dimensions of the insulating layer, uniform color, with no damage to the insulation shell wear. 3, buy Grossly method: Observe the appearance of color. Hand touch: the appearance of round, smooth Grossly: Observe the appearance of color, to see whether the fine workmanship hand touch: check for damage 3, wire and cable fire precautions in the home renovation process, if not WISDOM HDMI CABLE  used properly wire and cable, or choose inferior or old wire and cable, can easily lead to fires. Therefore, the construction process and storage precautions must be taken during construction materials 1) wires and cables should be how to deal with renovation sites, avoiding scattered Rolls of wire and cable, must be kept away from open flames. Wires and cables should not be exposed to direct sun off the light or ultra-high temperature, especially for the construction of the wire. The wires must be installed with plastic or metal pipe jacket to avoid being man-made damage. For laying in the ceiling, into the walls and other places where the wires in the pipeline, can not have wire connectors. 2) how to deal with fire wire cable? To cut off the power first, then select the uncharged fire extinguishers, as dry powder, carbon dioxide, 1211 fire extinguishers, avoid the use of foam. Note that in the course of fire, and the fire service to keep a safe distance between the equipment and the charged body. When fighting for overhead wires, elevation between ordinary people and the charged body should not exceed 45 °, and stood in line outside the fire.