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The SMC Cable Braket is a combination consisting of a cable bracket, a post and a fixed pin. The material of the column and the pin is also made by the high temperature pultrusion of the FRP composite. The column can be arbitrarily cut length according to the needs, the height of the layer is adjusted, and the assembly is free. The cable bracket has various specifications to meet different lengths and load requirements.

Light weight, high strength, aging resistance, UV protection, more importantly, 1 mm can withstand voltages above 10,000 volts, it is a good insulation material.

Features: high insulation, chemical resistance, high fire resistance, good water resistance, accurate size, stable working performance, light weight, high strength, acid and alkali resistance, waterproof, moisture-proof.

There are two protective requirements for optical fibers in formation of the fiber optic cables: one is less stress on optical fibers; the other is waterproof of optical fibers.

The outermost layer of the cable is a plastic sheath, and the inside is a metal sheath, and more inside is a water-blocking layer expanded by water. The core of the cable is pasted together with the optical fiber. Fiber optic has four waterproof gates, namely, plastic sheath, metal sheath, water-proof layer and ointment. Then the question arises. Why are optical fibers so afraid of water? Why aren't the aquarium glass and window glass at home afraid of water while they are waterproof? Why are they all glass so different?

It is generally believed that optical fibers are not afraid of water, because glass has excellent water absorption. It is generally believed that optical fibers are not afraid of water, because glass has excellent water absorption. But in fact, water is very harmful to cables. If water enters the fiber optic cable, it will damage the optical fiber if it freezes and expands in the cold water, so the cable needs to be filled with ointment to prevent moisture from entering.

The reason why optical fibers are afraid of water is that optical fibers are made up of glass (Si04) tetrahedrons connected with each other. In a Si-O-Si network, oxygen atoms exist in the form of bridge oxygen. However, in the environment with water, after the glass surface adsorbs water and gas, the hydrolysis reaction slowly occurs, which leads to the breakage of the silicon-oxygen bond in the original network-Si-10-Si-1 and the transformation of bridge oxygen into non-bridge oxygen. As a result, the glass cracks are caused, which are growing continuously. 

Whether for fish tank glass, window glass or optical fiber glass, they are afraid of water. The difference is that fish tank glass, window glass are very thick, with the thickness of 3mm, 5mm, l0mm, even if there are 0.05mm cracks do not affect the strength of the glass, and naked eyes can not see changes. Fiber optic glass is different. The diameter of fiber optic glass is only 0.125 mm, which is as thin as hair. If there is an 0.05 mm crack, the diameter of fiber optic will remain 0.075 mm. Therefore, fiber optic is very easy to break. In addition, the appearance of OH root will increase the absorption loss of fiber to light. This is why aquarium glass and window glass are not afraid of water while optical fiber glass is afraid of water.

Even so, the cable is damaged, and the joint box is not sealed properly, and the exposure of bare fibers will lead to shorter service life and natural fiber breakage due to water.

Shenzhen Yutai Optoelectronic Communications Co., Ltd. provides high quality optical cables, which is the best choice for buying fiber optic cable.

(1) Aerial fiber cable should adopt steel strand support type in preference. The structure is erected by suspension or bundling (winding) of poles and routes.

(2) Aerial fiber cable should have the corresponding mechanical properties, such as shock resistance, wind resistance, snow, low temperature and other meteorological loads generated tension, and have moisture-proof, waterproof performance. Generally, according to the nature of the line, the environment and local conditions, whether using the filling paste optical cable or not can be decided, but there should be a moisture-proof layer (aluminum foil layer).

(3) The distance between poles of aerial lines is 35-40 meters in urban area and 40-50 meters in suburban area. The distance between poles of overhead lines varies with different weather load zones. The shortest distance is 25m and the longest distance is 67m. The division of load zones in China is based on wind, ice and temperature.

(4) The aerial fiber cable lines should make full use of the existing overhead pole road and hang optical cable. Its pole road strength and other requirements should meet the building standards of overhead communication lines.

(5) Galvanized steel strand with specification of 7/2.2mm should be used for suspension of aerial fiber cable. The safety factor of the suspension line shall not be less than 3 (S > 3). When the weight of optical cable exceeds 1.5 kg/m, the distance between poles can be reduced or 7/2.6 mm strands can be used in heavy load area when the overhead laying mode is needed for long distance primary trunk lines.

(6) The aerial fiber cable should be selected to meet the requirements of temperature characteristics according to the use environment. - aerial laying should not be used in areas below 30℃.

In the network hardware, there is another kind of network transmission media that can not be ignored. We usually call it the network line. At present, the common network cables are thin twisted pair, fiber optic cable, coaxial cable and thick coaxial cable.

Fiber optic cable is a new generation of transmission media.

Compared with copper media, the security, reliability and network performance of fiber cable have been greatly improved. In addition, the bandwidth of optical fiber transmission is much larger than that of copper cable, and the maximum connection distance supported by optical fiber transmission is more than two kilometers, which is the inevitable choice to build a large-scale network. Fiber optic cable has many advantages, such as good anti-electromagnetic interference, strong confidentiality, fast speed and large transmission capacity, so its price is more expensive, and it is seldom used in home occasions.

At present, there are two kinds of fibers--single-mode fibers and multi-mode fibers (so-called "mode" refers to a beam of light entering the fibers at a certain angle). Multi-mode optical fibers are generally used for network connections in the same office building or relatively close areas. Single-mode optical fibers transfer data with higher quality and longer transmission distance, which are usually used to connect office buildings or geographically dispersed networks. If the optical fiber cable is used as the transmission medium of the network, the optical transceiver and other devices need to be added, so the cost is higher, and it is seldom used in general applications.

Twisted pair cable is a flexible communication cable, which contains pairs of insulated copper wires. It is characterized by low price, so it is widely used, such as our common telephone lines. According to the different maximum transmission rates, twisted pairs can be divided into three categories, five categories and super five categories. Three types of twisted pairs have a speed of 10 mb/s, five types can reach 100 mb/s, and the super-five types can reach 155 mb/s, which can meet the needs of multimedia data transmission in the future. Therefore, five or even super-five types of twisted pairs are recommended.

Twisted pair can also be divided into shielded twisted pair (stp) and unshielded twisted pair (utp). STP twisted pair has a lower speed (only 4mb/s), but its anti-interference ability is stronger than UTP twisted pair, so its price is much higher. Now this cheaper kind of twisted pair is a few yuan a meter, while it may be tens of yuan for the expensive ones. In contrast, the price of UTP twisted pair is generally about one yuan per meter, which is relatively low.

In addition, the popular terms of 10m and 100m unshielded twisted pairs are called 10Base-T and 100base-t, which are often seen on the market. RJ45 crystal head is also used to make the connection between twisted pair and network card RJ45 interface. Its quality is directly related to the stability of the whole network, which can not be ignored.

Coaxial cable is a kind of transmission medium which is familiar to many friends. It is a layer of insulated wire wrapped around the central copper conductor cable. Its greatest feature is good anti-interference ability, stable transmission data, and cheap, so it was once widely used, such as closed-circuit television lines. However, coaxial cables have been widely used in the past, mainly because the bus network structure composed of coaxial cables has low cost, but the damage of a single cable may lead to the paralysis of the whole network and difficult maintenance, which is its biggest drawback.

The following are four  indoor fiber optic cable types:

First, vertical lifting optical cable（riser）

After the cable enters the building, it is necessary to provide the connection between the entrance equipment, equipment room or computer room and the communication cabinet on different floors, which is called "vertical wiring system". At this time, most of the cables are located in the vertical pipe (Riser) of the vertical shaft between floors. For this reason, the fiber optic cable needs to bear greater tension force (maximum self-weight).

Second, single-core and dual-core interconnected indoor optical cable

The indoor optical cables of the compact single-core, compact 8-word double-core, compact 2-4-core circular structure are small in size, good in flexibility, which can withstand very small bending radius, and have no trace of inventory because of the use of the compact sleeve structure with very good flexibility and high-load aramid yarn around the compact optical fibers. It is an ideal choice for interconnected optical cables, such as optical fiber to workstation, communication cabinet interpolation wiring, tail fiber, jumper, communication cabinet to indoor wall lead-out end, lead-out end to transceiver application, etc. They are directly equipped with standard connectors, and play the role of interconnection between optical devices and backbone (vertical) optical cables in communication cabinets, distribution boxes, protection boxes and equipment boxes. It is convenient and easy to install the cable in limited space, and it is an ideal network cable scheme for wiring in limited space and inserting soft wires into buildings.

Third, plenum for inflatable environment(Plenum)

In indoor applications, plenum-level indoor optical cables are required when optical cables need to pass through pipelines, high-pressure inflatable space or air handling systems to transmit information. This special environment puts forward stricter requirements for flame retardancy and corrosion resistance of optical cables. Therefore, the tightening material and outer protective material of indoor optical cables are more stringent. The tightening material is PVC material, and the outer protective material is PVC material with flame retardant or hard fluorinated polymer which meets UL certification. PVC design is superior to fluorinated polymers. Because PVC is soft, flexible, and has no trace of storage, it can be stored in circles.

Fourth, rat-proof optical cable

Single-core or multi-core tightly-sheathed fiber optic cables protected by stainless steel hoses have strong lateral pressure resistance, high flexural and tensile strength, and excellent rodent resistance. It can be used in trampling occasions, such as under carpet laying or limited space occasions where frequent bending or rodent damage is required.

In addition, there are several matters:

1. When using fiber-optic ribbon and cable to enter buildings, indoor fiber-optic ribbon and cable (fiber-optic ribbon and aramid yarn and PVC sheath) can be selected.
2. When laying underground pipelines and ceilings between equipments, reinforced structures can be adopted, such as PE, PU sheaths on the basis of distribution cables or aluminium-PE sheaths on the basis of dispersed cable structures.
3. When the distribution cable adopts metal armoured sheath, it can be laid overhead and directly buried.
4. Low-smoke halogen-free (LSZH) materials can be used as jackets when the requirements of the toxicity and smoke are high. Fifthly, the PU sheath has good anti-friction, scratch and chemical erosion properties, which can be used in emergency, emergency repair and military optical cables.

The copper-clad strand wire is shaped like a cable ccs, which is made of a plurality of copper-clad single wires. Because of its multi-stranded properties, the electrical conductivity and tensile strength are relatively good, and the product can be customized to enhance the elongation rate by multiple heat treatment in the production process, which has increased the strength and toughness of the steel compared with the pure copper strand. Moreover, the good electrical conductivity and corrosion resistance of the copper material are maintained due to the principle of the skin effect. Therefore, it is very popular in many fields of lightning protection and grounding, especially in power plants, substations, high-speed rail, subways, electrified railways, large-scale chemical plants, mechanical plants, communication base stations, transportation, computer rooms, highways and military bases.

Copper Clad Steel Stranded Wire Characteristics

1.High conductivity (up to 70% and above)

The copper-clad strand wire produced by our company generally has a conductivity of 30%-70%, and more than 70% can be customized according to customer requirements.

2.High tensile strength

The multi-stranded copper-clad strand wire has high tensile strength and can be made into copper-clad steel strand wire with high electrical conductivity and high tensile strength after being enhanced by special treatment process to be suitable for special use occasions.

CCS-Stranded Copper Clad Rod

Cable Welding Capsule New

3.Long life

The copper plating of single-stranded copper-clad round steel (copperweld steel) of multi-stranded copper-clad strand is thick, the excellent production process makes copper layer tightly combined and bent 180-360 degrees without cracking and its life is long and can be more than 30 years.

4.Low cost

The characteristics of high conductivity and corrosion resistance have greatly reduced the number of grounding conductors used in grounding projects, which can significantly save costs and achieve outstanding economic benefits.

5.Convenient construction and transportation

The single length of the copper-clad copperweld strand can be up to 100 meters, because the 100-meter package or the hundred-meter cable can be transported more easily. The welding between the grounding grids during the construction is recommended to use the exothermic welding series products produced by our company. There are different shapes of molds for exothermic welding, so that different permanent joints can be randomly welded. The construction operation is simple and easy to learn, and the various conductors of the grounding grid are welded together to become a true maintenance-free device.

Specification and modles:

Note: tinned copper-clad strands and PVC insulated copper-clad strands can be customized according to customer requirements.

The armoured components of optical cables are all metal conductors. If the power lines are short-circuited or lightning strikes the metal parts, strong current will be generated to destroy the optical cable line equipment, and even casualties will occur in serious cases.

1. Shock of Lightning

The armoured components of optical cables are all metal conductors. If the power lines are short-circuited or lightning strikes the metal parts, strong current will be generated to destroy the optical cable line equipment, and even casualties will occur in serious cases.

2. Insulation of optical cable lines is poor

If the insulation of communication optical cable line is not done well, the operation strength of optical cable will be greatly reduced due to stress corrosion and static fatigue after the joint box is inundated or in the case of dampness, and cable breakage will occur in serious cases.

3. The influence of external forces

Line faults are often caused by external forces. Because many communication optical cable lines are laid in the field, the general burial standard is deep below the ground, so it can not effectively avoid the damage of many external factors to the optical cable lines.

4. Faults at line joints

Faults are most likely to occur at the junction of the line, because the optical fibers at the junction have no protection to the original cable structure or the protection has been significantly weakened, so the routine operation and protection work can only rely on the junction box, which leads to a great increase in the probability of faults.

Shenzhen Yutai Photoelectric Communications Co., Ltd. provides high quality optical cables. The fiber optic cable price is in line with your wishes. Welcome to choose and buy.

Optical cable handover box is a kind of handover equipment which provides end-to-end and jump-over for main layer and distribution layer optical cables. After the cable is introduced into the cable junction box, the main layer cable and the distribution layer cable are connected by jumping fibers after being fixed, terminated and distributed.

The thing placed inside is the end of the optical cable, and the function of the end of the optical cable is to gather two or more signals of the original unrelated computer room together, and then use tail fiber to connect two unrelated cables according to need. Its signal source is the computer room.

Optical intersection boxes collect all optical signals. Optical signals can not be used directly. Photoelectric conversion equipment is needed to convert optical signals into electrical signals. Therefore, if you want to use the signals in optical intersection boxes directly, it is very expensive.

Similar to the optical cabinet, there are also electrical cabinets. The appearance of the electrical cabinet is not different from that of the optical cabinet. However, the signals collected in the electrical cabinet are electrical signals, which can be directly used without conversion. The signal source of the electrical cabinet is also the computer room.

Fiber optic cable junction box is a kind of outdoor connection equipment. The most fundamental requirement for it is to be able to withstand dramatic changes in climate and harsh working environment. It should have the characteristics of waterproof gas condensation, waterproof and dust-proof, pest and rodent prevention, and strong impact damage resistance. It must be able to withstand the harsher external environment. Therefore, waterproof, moisture-proof, dust-proof, impact-proof, pest and rodent-proof requirements are relatively high on the outside of the box; temperature and humidity control requirements are very high on the inside of the box. According to international standards, the highest standard for these projects is IP66. But there are not many cases that can meet this standard.

At present, the main cabinets used in China are KRONE cabinet in Germany, which is made of unsaturated polyester glass fiber reinforced material (SMC) and has good performance in waterproof, moisture-proof and impact-proof. The imitation of domestic reference KRONE boxes is mainly iron metal boxes (generally up to IP65 standard). For metal box, because of its poor performance in waterproof gas condensation, it is doomed not to be widely used and gradually eliminated. Some domestic imitations are quite different from KRONE imported from Germany in terms of waterproof gas condensation and shock resistance due to material performance problems. In addition, due to the poor anti-aging performance of sealant strip, the performance of waterproof and dust-proof is also common. Of course, it is acceptable to reduce performance requirements and investment when the external environment of the installation location of the cable junction box is better.

Shenzhen Yutai Photoelectric Communication Co., Ltd. is a professional fiber optic cable supplier, providing high-quality optical cables. Welcome to buy.

According to the physical and electrical properties of optical cables, the laying of optical cables must meet certain requirements. In addition, the laying of optical cables in different environments also have their own requirements.

The laying of optical cables shall strictly comply with the following requirements:

(1) Length and integrity: The length of each cable should be controlled within 800m, and there is no relay in the middle.

(2) Minimum installation bending radius of optical cable: under static load, the minimum bending radius of optical cable is 10 times than the diameter of optical cable; under load conditions during wiring operation, such as pulling the optical cable out of the pipe, the minimum bending radius is 20 times than the diameter of optical cable; the minimum installation bending radius of four-core optical cable must be greater than 2in (5.08 cm). 

(3) Installation stress: The maximum installation stress applied to 4/6 core cable shall not exceed 100lbf (45kgf); when multiple 4/6 core cables are installed at the same time, the maximum installation stress per cable shall be reduced by 20%. For example, for 4x4 core cable, the maximum installation stress shall be 320lbf (144kgf).

Explanation: It is required that the traction force of the cable should not exceed 80% of the allowable tension of the cable, and the maximum instantaneous traction force should not exceed the allowable tension of the cable. The main traction force should be applied to the strengthened components of the cable, and the fiber can not bear the tension directly.

(4) Installation pulling force of optical fiber jumper: the maximum pulling force of single-core soft wire is 27 LBF (12.15 kgf), and the maximum pulling force of double-core soft wire is 550 LBF (22.5 kgf), and the distance of interconnection equipment should not exceed 100 ft (30 m).

(5) Judging the A.B end of optical cable: Before construction, we must first judge and determine the A.B end of optical cable. A-terminal should be oriented towards network hub
direction, while the B-terminal should be oriented to the user's side. The end of the laying cable should be in the same direction, and it must not be mistaken.

(6) No matter laying optical cables in buildings or between buildings, separate pipe holes should be occupied. If the original pipe and copper cable are used together, the plastic sub-pipe should be put through the hole. The inner diameter of the plastic sub-pipe should be 1.5 times than the outer diameter of the optical cable. The optical cable should be laid in the plastic sub-pipe, and the same sub-pipe should not be used with the copper cable. When laying optical cables are in parallel with other weak current systems in buildings, they should be laid separately and fixed, and the minimum net distance between the cables should meet the design requirements.

Shenzhen Yutai Photoelectric Communication Co., Ltd. is a professional fiber optic cable supplier, providing high-quality optical cables. Welcome to buy.

Aerospace UAV Connectors are an important basic component that is almost ubiquitous in military and aerospace aircraft & UAV applications and serve as interconnects for transmission signals and power, which has to meet stringent testing for outgassing and residual magnetism to be suitable for use in airspace & UAV applications. Outgassing and residual magnetism can adversely affect nearby components. 

Weight & space saving is necessary for Aircraft & UAV connectors because there is only so much room on a space vehicle. They have to be extremely reliable as well and they must resistant to severe environmental conditions like shock, radiation, extreme temperatures, and vibration.

Application for AIRCRAFT/UAV

Sunkye EMI filtered Connector is designed to meet stringent aerospace performance requirements. Each connector series is offered with standard low-pass Pi or C filter arrays, or with customized filters to meet specific frequency and capacitance requirements. Thermally conductive epoxy protects the filter package from mechanical and heat stress and also provides a waterproof seal. All filtered receptacles are intermateable with standard plugs and connector savers, and each respective family of connectors is supplied with a range of shell styles in both environmental and hermetic configurations.

Sunkyeautomotive series connectors onboard power applications in the rail market allow for multiple customer-defined configurations, enable easy assembly and further enhance flexibility with the ability to integrate local cabling and components. The series' removable and interchangeable modules also simplify new and retrofit installations. Mitigate maintenance requirements, lower the total cost of ownership, and provide space and weight savings. Qualified for harsh-environment, high temperature, anti-oil working environment. High performance to supports multi-parallel for the testing programming for the high-performance sports racing cars parallel durability and performance programs covering more than 50,000km, with various 24- and 36-hour tests being completed by multiple Race Prototype (RP) cars under the extreme pressure of endurance racing. The latest high-performance sports racing cars aerodynamics match with the lightweight design carbon fiber materials developed to deliver even greater levels of stability and aerodynamic efficiency than its road car stablemate. Meanwhile, it also support multi-lane of sensors and data analysis capabilities developed in automotive.

Application for Automotive

Sunkye Automobileconnector Support high sports performance high-temperature 280℃ connector, Anti-Water & Oil the advantage of heat exhaustion resistance improve the matching performance of the whole automatic. Sports High-Performance Automobile requiring for high-temperature heat exhaustion resistance & high-performance sporting. Sunkye family D108 removable connector Series will reach the high performance which you are thinking.