The rapid development of RF connector China's shipbuilding industry to form a complete set of shipping manufacturers also brought new opportunity of development, more clearly for Marine cable manufacturing has provided a broad market. Yangzhou cable in light manufacturing, on the basis of traditional cable, intensify research and development of Marine cable, and achieved a RF Cable Assembly  good market share. 
The development of the shipbuilding industry will bring vitality to shipboard cable, Marine cable at the same time update will speed up. Shipbuilding industry of China during the period of "15" expects sales of 23 billion ~ 25 billion yuan, is expected to reach 350 by 2010 ~ 40 billion yuan, to earn foreign exchange through exports of $3 billion. 
Marine cable as nerves and blood vessels, is directly related to the ship's safety, reliability, and capabilities. Modern ship accumulated all kinds of cable laying of tens of kilometers above, in Europe, the current stimulate the construction of the tanker, tanker vacation per tanker must be 1000 kilometers above the insulation of the cable laying, throughout the ship. Used due to the particularity of Marine environment, basic cable is special cable, low smoke zero halogen type types varied, usually should be fire prevention, waterproof, non-toxic, and convenient for transportation. Longitudinal water seal cable, umbilical cord cable will get heavy use, low smoke and soft cable, power cable and ship with Custom Cable Assembly communication signal cable and other special wire and cable will also lead, and ship repairing, and terminal and other related facilities construction, will also provide unlimited business opportunities for other common type of wire and cable.

RF cable assembly commonly used plastic are polyethylene, crosslinked polyethylene, polyvinyl chloride, polypropylene, polyolefin, fluorine plastic, nylon, etc. 
Polyvinyl chloride (PVC) has good GPS antenna  physical and mechanical performance and excellent process performance, are the most common plastic, the dosage of the 20th century is also low voltage wire and cable main insulation and sheath material should suit. But in the 21st century, in PVC cable market will shrink gradually fade out even. The reason has two aspects. On the one hand, people's safety consciousness is raised, hope to adopt halogen free material, so many halogen-free materials arises at the historic moment, and there is no doubt that it will become RF connector the latest must-haves in the cable industry in the 21st century and occupy the market. 

At present, aluminum alloy RF cable assembly is not something new, its performance, price advantages also passed inspection test authority. But in the current statistics show that copper wire cable still accounts for more than 90% of the market. And, of course, this does not prevent aluminum alloy cable gradually recognized and accepted good momentum, the general public in recent days, the order status and user feedback, through the company domestic famous manufacturer, aluminum alloy cable pioneer DE son cable has made clear its confidence in aluminum alloy cable in the future. 
 
Data shows, RF connector ore cost-effective and superior electrical properties of aluminum alloy cable of Europe and the United States has used for nearly 40 years of history, in hospitals, churches, government agencies, especially usage. DE's son, said an official with the cable related overall point of view, although the sales of aluminum alloy cable with copper wire cable has a large gap, but comes from the government, factory, hospital, civil residence small orders has been obviously rising trend, it represents the cable in the most basic cable used in the field of aluminum alloy, in the most complex operating conditions, has received wide acceptance, also means that the future prospects for aluminum alloy cable good! 
 
Aluminum alloy cable excellent cost performance is the key to win customers. Recently, the propulsion of city planning and construction has many factories, the school moved from downtown, located in the suburbs, produced a large number of cable needs. Workshop building, for example, choose aluminum alloy cable in ensuring safety in production at the same time, reduce the purchasing cost. , according to data within 1000 meters length, originally need to build four to six bridge fixed copper cable, and the aluminum alloy cable quality is lighter, the same distance from just three bridge can ensure safety, this greatly reduces the construction costs. 
 
In medical and civilian projects, many hospital early still use copper wire cable in the subject construction, and in the outdoor lighting, corridor of the complex environment and try better corrosion resistance of aluminum alloy cable, use effect is good and plan in the upgrading of the cable, with aluminum alloy cable replacing copper wire cable. 
 
After in improving product quality, improve products and services on the efforts for many years, the domestic cable enterprise research and development, production capacity is improved. After years of scientific research, Germany's son, manufacturer in the field of aluminum alloy cable technology breakthrough, and through a number of countries, and even the international authoritative department certification, ZC - TC90, ZB - ACWU90, ZA - AC90 products to GPS antenna realize the safe, stable and enduring power transmission.

All kinds of RF connector lastic wire and cable, in effect by different kinds of external mechanical forces, such as bending, buried. Stretching, twisting, positive pressure, impact and vibration, etc. All external mechanical forces, imposed on the cable will cause certain damage to the cable. Complete in order to protect the cable structure and electrical properties, improve the service life of the cable, the cable outer sheath increased armoring layer is very necessary. 
 
RF Cable Assembly armoring layer usually has two kinds, steel tape armoured and steel wire armoured. 
 
To make cable can bear radial pressure, with double steel belt, gap around the package process, called steel tape armoured cable; After cabling wrapped steel belt around on the cable conductor, then extrusion plastic sheath. The cable model representation method such as control cables, KVV22 VV22 plastic power cable, communication cable SYV22, etc. This kind of cable type index of two digits, the first: "2" means a steel tape armoured; Second: "2" PVC sheath, such as polyethylene sheath change "2" to "3". The type of cable is mainly used in bearing pressure compared commonly big occasions. For example: crossing the road, square and vibration of road, railway and etc., suitable for buried pipe laying, tunnel and wear. 
 
In order to let the cable can withstand larger axial tension, use more low carbon steel wire around the package process, referred to as the steel wire armoured cable. Cable after the steel wire according to certain pitch winding and squeeze sheathed on the conductor, said in the cable model methods such as VV32 KVV32 control cables, plastic power cable, coaxial cable HOL33, etc. Models of two Custom Cable Assembly igits, the first: "3" said fine steel wire armoured; Second: "2" PVC sheathed, "3" said polyethylene sheath. The type of cable is generally used in span is larger, laying head big occasions.

A, pressure gauge without RF connector instructions. Reason: 1, the cut-off valve of the pressure tube not open; 2, guide pressure pipe plugging; 3, spring too much dirt deposition and blocked inside pipe joint; 4, spring pipe crack; 5, center and fan tooth wear too much, that don't mesh. 
Second, the pointer jitter. Reason: 1, the pressure measured medium; 2, pressure gauge, the installation position of vibration. 
GPS antenna Third, pressure gauge pointer is to beat or dull phenomenon. Reason: 1, the pointer into the surface of glass or scale friction; 2, center shaft bending; 3, two gear mesh with dirt; 4, connecting rod between the fan gear and the activities of the screw is not flexible. 
Four, after the pressure is removed, Pointers can't return to zero. Reason: 1, pointer DaWan; 2, short hair spring force is insufficient; 3, a pointer is loose; 4, there is a friction drive gear. 
Five, the non-uniform pressure indication error. Reason: 1, spring tube deformation failure; 2, spring tube free end and sector gear, connecting rod transmission ratio improper adjustment. 
Six, transmission ratio imbalance. 
Seven, directives on the low side. Reason: 1, the transmission ratio imbalance; 2, spring tube leakage; 3, pointer, or have a friction drive mechanism; 4, guide pressure pipeline leak. 
Eight, pointer cannot be instructed to limit scale. Reason: 1, the transmission ratio is small; 2, the inappropriate position of movement fixed to the frame; 3, the inappropriate position of spring tube welding. 
Pressure gauge calibration: 
Company adopts piston type pressure gauge to do calibration tools, will be the school pressure gauge and standard pressure gauge at the same pressure compare their instructions, absolute error of the chosen standard table shall generally be less than 1/3 of the calibrated instrument are absolute error, so the error can be ignored, that standard meter reading is a real pressure values. If the calibrated instrument for a standard instrument are reading error is not RF cable assembly reater than the school, the provisions of the instrument error is considered calibrated instrument are qualified.

LED lighting is once again after the RF connector incandescent lamp, fluorescent lamp lighting revolution. At present, the world's major countries and regions are vigorously developing the LED industry, leading formed the United States, Japan, the European Union and South Korea, China Taiwan and mainland China rapid development of industrial structure. Due to energy conservation and environmental protection, long service life, wide application, as an important field of RF Cable Assembly nergy conservation and environmental protection industry, LED industry is included in the strategic emerging industry in China. 
LED lighting industry development in our country is faced with major historical opportunity. On the one hand, with the accelerating process of urbanization in our country, which has created a huge market space; LED lighting products, on the other hand, the application scope of increasing, expanding the size of the market. At present, the LED industry have strong support from the government, but it is inevitable, some companies has not been a fundamental breakthrough in core technology, not only do not have professional and technical personnel and r&d team, LED LED products don't get progress on the luminous efficiency; And product composition is not further optimization, most of the enterprise production of varieties of a single chip, variety uneven, the level is uneven, failed to give full play to the effect of combination, In addition, raw materials, auxiliary materials and the related production factors to rational layout, lack of scale effect bring generous benefits. In the past two years, LED lighting technology has developed rapidly, rapid decline in costs, product demonstration application gradually away, significantly speed up industry consolidation speed, industrial concentration will gradually increase, eventually will retain part of mastering the core technology, have more independent intellectual property rights and well-known brands, strong competitiveness, leading enterprises of industrial layout is reasonable. 
2, industry development trend 
In recent years, the global LED lighting energy saving industry GDP annual growth rate kept at 20% or more. According to relevant statistics, the global LED lighting market is about $5 billion in 2010, the global LED lighting market is expected to reach $2020 in 75 billion, 50% of the global lighting market share. 
According to the state council on speeding up the decision of the cultivating and developing strategic emerging industries ", "" twelfth five-year" energy conservation and emissions reduction comprehensive work plan ", "" twelfth five-year" energy conservation and environmental protection industry development plan "and" semiconductor lighting energy conservation industry development opinions "and other relevant content, the government formulates the semiconductor lighting industry planning. The planning is put forward, by 2015, LED lighting industry output value of annual average growth rate should be around 30%, more than 60 w general lighting incandescent lamp will be eliminated entirely, its market share will drop to below 10%, energy-saving lamps such as the traditional efficient lighting products market share is stable at about 70%, functional LED lighting products market share of more than 20%, the output value of 450 billion yuan (RMB 180 billion LED lighting application products), the LED chip localization rate more than 80%. 
Our country is gradually increase the intensity of fiscal subsidies LED lighting product promotion, in the commercial lighting, industrial lighting and government office, public lighting and other fields, to promote LED products in medical, agriculture, landscape lighting, stage and other professional and special places of demonstration application, in order to promote implementation of the "ten thousands city lights" semiconductor lighting application demonstration project, focus on the LED tunnel lights, street lamps and other products, and demonstrate application of the system, actively develop green lighting demonstration cities create activities. In focus LED canister light, shoot the light lighting products such as the application and popularization at the same time, timely into the home lighting domain. In priority to the development of national energy Custom Cable Assembly onservation and environmental protection under the support of industrial policy, LED the market demand gradually increase, highlighting future growth trends.

Infrared thermometer is made up of RF connector ptical system, optoelectronic detector, signal amplifier, signal processing, display and output parts, etc. Optical system convergence within its field of view of target infrared radiation energy, the size of the field by the thermometer optical components and their locations. Infrared energy focusing on the photodetector is converted into corresponding electrical signals. The signal after amplifier and signal processing circuit, and according to the instrument in the treatment of algorithm and the target emissivity correction after into GPS antenna the target temperature being measured. 
 
In nature, all objects of temperature above absolute zero energy constantly emit infrared radiation into the surrounding space. Object and according to the size of the wavelength of infrared radiation energy of distribution - and its surface temperature has a very close relationship. Therefore, through the measurement of objects radiation of infrared energy, can accurately measure the surface temperature, which is the objective which is the basis of the infrared radiation temperature measurement basis. Blackbody radiator is an idealized, it absorbs all the wavelengths of radiation energy, no energy reflection and, through its surface emissivity is 1. Existing in the nature of real objects, however, almost is not bold, to detect and obtain the infrared radiation distribution, must choose the right model in the theory study, this is the Planck quantization of the coelomic cavity radiation oscillator model is put forward, so as to export the Planck's blackbody radiation law, i.e., according to the wavelength of blackbody radiation spectrum, it is the starting point of all the infrared radiation theory, therefore calls the blackbody radiation law. All the wavelength of the radiation in addition to the actual object depends on the radiation and the temperature of the object, and constitutes a material object types, preparation methods and thermal process and related factors such as surface state and environmental conditions. Therefore, in order to make the blackbody radiation law applies to all real objects, must introduce a related to material properties and surface state of the proportional coefficient, the emission rate. The coefficient according to the actual object heat radiation and proximity of blackbody radiation, its value between zero and less than 1. According to the law of radiation, as long as know emissivity of the material, will know that the infrared radiation characteristics of any object. The main factors influencing the emission rate in: material, surface roughness, the physical and chemical structure and the material thickness, etc. 
 
When using infrared radiation thermometer when measuring the temperature of the target first to measure the goal in the wavelength range of the infrared radiation, then measured the temperature of the target is calculated from RF cable assembly hermometer. Monochrome thermometer and wavelengths of radiation is proportional to the; Two-color thermometer and the ratio of the two wavelengths of radiation is proportional to the.

RF Cable Assembly fault is the most direct cause insulation to reduce breakdown. Guide min insulation to reduce many factors, according to the practical operation experience, sums up several basic conditions. 
 
1) the external force damage. By RF connector  he analysis of the running of the recent years, especially in the high-speed economic development of Shanghai pudong, now a considerable amount of cable fault are caused by mechanical damage. Such as: non-standard cable laying installation construction, easy to cause mechanical damage; On the buried cable to cable damage in civil engineering construction is extremely easy to operation, etc. If the injury is not serious, sometimes for months or even years to thoroughly breakdown form failure can lead to injury, may sometimes destroying short-circuit fault, directly affects the safety of the power unit production. 
 
2) insulation be affected with damp be affected with damp. It is also very common, generally occur in the directly buried or exhaust pipe of cable joint. Such as: cable joint production of unqualified and do joint in humid climate conditions, can make the joint water or mixed with water vapor, r long time under the action of electric field to form water branch, gradually damage the cable insulation strength and cause failure. 
 
3) chemical corrosion. Cable directly buried in a region with acid-base function, often can cause cable armoring, lead or outer protective layer of corrosion, protective layer due to the long suffering chemical corrosion and electrochemical corrosion, the coating failure, the insulation is reduced, can also lead to cable fault. : unit cable corrosion situation is quite serious. 
 
4) for a long time overload running. Overload operation, due to the heating effect of the current, load current through the conductor cable will cause fever, at the same time charge of skin effect and eddy current loss of steel armoured, additional heat insulation dielectric loss also can produce first, so that the cable temperature. Long-term overload operation, the high temperature will accelerate the aging of the insulation, and insulation breakdown. Especially in the hot summer months, the rise of temperature of the cable often resulted in the breakdown of cable insulation is weak at first, so in the summer, cable fault is also much more special. 
 
5) cable joint failure. Cable joint is the weakest link in the cable line, directly by the staff negligence caused by bad (construction) cable joint failure often occurs. Construction personnel in the process of making cable joint, if there is a connection is not tight pressure, inadequate heating, such as the original mesh, can lead to insulation cable head is reduced, so as to cause an accident. 
 
6) environment and temperature. Cable of the external environment and heat can Custom Cable Assembly  ause cable high temperature, insulation breakdown, even burst into flames. 
 
7) the cable body normal aging or other reasons such as natural disasters.

Household is decorated in, RF connector ore electric circuitry to dark apply construction wiring method. Dark apply wiring is nice, but is not easy to repair, being less intelligent remained statistically significant hidden danger, etc. Pay particular attention to the following points in the construction. 
(1) before the construction, we must give full consideration to various functional areas needed for the electrical and lighting equipment, and based on each wire roughly corresponding matching wire cross-sectional area. Under the condition of the economic conditions permit, we should try to RF Cable Assembly
 dopt high quality copper sheathed wire junction box and dark. 
(2) drawing room wiring circuit distribution in each layer, and all sorts of lamps and lanterns, switch, socket and switch board set coordinate and height, to determine the line and the direction of the branch. Cabling general from beginning to end all the way at the end of the line terminal block direction construction. Wire had better choose the different color to identify the different circuits. 
(3) it is best to wear outside power supply fire retardant laying pipes. In combustible construction smallpox barn, be sure to add wear fire retardant pipes, and cannot be installed capacitor, inflammable and explosive electric switch electric appliances, at the same time the bird should be set the power switch, when it is necessary for cut off power supply. So the wire connection should be carried out within the terminal block. 
(4) indoor each branch circuit the total capacity should not be more than 3000 w, every single phase circuit of the load current is generally not more than 15 a. Domestic power users shall set up special line, such as air conditioning. Bathroom shower equipment to maintain a certain distance, such as the power switch and moisture-proof measures. Each appropriate USES single-phase circuit automatic air switch control and protection, switchboard shall be equipped with the leakage protector. 
(5) switch installation height 1200 ~ 1350 mm from the ground commonly, socket height is generally 200 ~ 300 mm, height of panel with 1800 ~ 2000 mm advisable. 
(6) wiring has been completed, should according to the design requirements for inspection, testing, inspection and correct rear can construction for other process. At the same time, construction personnel to account to the other processes of construction personnel, in case damage when drilling, hole, screw nails has good line construction. 

RF connector Product quality, the advantages and disadvantages, the first characteristic is reflected from the appearance of the product quality, whatever the product, or the semi-finished products, must pay attention to appearance quality in production, the strict control and inspection. Sheath is the appearance of the cable, the requirement is smooth and rounded appearance, uniform luster, unbiased core (deviation) shall not exceed the stipulated, no mechanical damage, flattening, perception visible sundries, air bubble, no blister, clear grain, bamboo, twist, etc. Sheathed in addition to meet the quality requirements, quality of cable sheath thickness also has certain influence. 
 
GPS antenna Sheath thickness less than standard requirement, of course, is not qualified, but the thickness is beyond the standard requirements, and unqualified. Such as: cable type for ZR - KVVP4 * was 1.5, the measured average thickness of sheath thickness of 1.6 mm, this model as reference to GB9330-88 standard request, the thickness should be 1.2 mm. For the unqualified reason has the following points: 
 
(1) reduce the service life. Cable laying, after a long time electricity, electricity can generate heat, conductor allows working temperature is 70 ℃, polyvinyl chloride (PVC) long-term use of temperature should not exceed 65 ℃, if in the summer, the temperature will rise, the temperature will be through the outer sheath, and sheath thickness increase, the heat is difficult to send out, will affect the service life of the cable, because of polyvinyl chloride (PVC) under the action of heat, has brought a series of physical and chemical changes in the insulating layer, the loss of the good performance of the original cause insulation performance decreased obviously, and there will be a short circuit, affecting the normal operation of the unit. 
 
(2) the material performance defects. Material performance is not reflected by thickness, according to the GB8815-2002 standard requirements, 
 
It one of the indicators is not standard, the flame retardant PVC material, it the oxygen index of less than 30. 
 
(3) the cable structure problems. If the conductor, insulation, weaving density, according to the standard control, selecting the appropriate filling material make it round, sheath how crowded so thick? 
 
(4) increase the difficulty of cable laying. Now give priority to with bridge or wear tube cable laying, now many enterprises are the cable requirements on tight, small diameter, has space during the installation process, send out heat, ensure the cable outer sheath is not damaged, otherwise, bring some difficulties in construction unit and cable laying. 
 
RF cable assembly To sum up, the thickness of sheath shall be in accordance with the standard controls, such already save resources for the enterprise, reduce material consumption, increase profits, and can ensure the quality of cable, create a high quality and low price products.