Appearance and structure Significance of Control cable

The appearance of the product quality is very important, usually the first impression to the user is the appearance of the product quality, therefore, all good product pay great attention to appearance quality, the appearance quality, production workers and inspectors can not be ignored, we will strictly control to ensure appearance quality.

Check the appearance and structure size of the cable generally is carried out by or at the same time, the quality of products on the one hand, to see if the performance is good, but the quality of its appearance, structure size also account for certain proportion, the appearance and structure size of the product has an impact on the performance of the cable.

The appearance of the control cable inspection is to check the surface of the finished products, semi-finished products or materials, and the dimensional check is stipulated in the product standard of each size to review each product. The cable structure inspection refers to the structure of each component are inspected, appearance inspection problems such as the oxidation of copper wire has an impact on cable quality, size can be a direct impact on the performance of products, such as the diameter of a conductor and its resistance; Insulation thickness and resistance is related to degree of pressure; The winding pitch and product flexibility, strong degree. Check can reveal the manufacturing quality of the cable structure, find the problems existing in the production process, so control the appearance and structure size is the assurance of product performance.

Applications of Armoured Cables

When all kinds of plastic wire and cable laying, they will suffer various external mechanical forces, such as bending, stretching, twisting, positive pressure, impact and vibration, etc. All of the external mechanical forces exerted on the cable will cause a certain of damage to the cable. In order to protect the cable structure and electrical properties, and improve the service life of the cable, it is very necessary to add armoured layer to the cable outer sheath.

There are usually two kinds armoring layers of Cables, steel tape armoured and steel wire armoured. In order to make the cable can withstand radial pressure, we adopt double steel belt, gap around the package process, known as the steel tape armoured cable, wrapped steel strap on the cable conductor after cabling, then extrusion plastic sheath. The representation method of this kind of cable model number is such as control cables KVV22, plastic power cable VV22, communication cable SYV22, etc. The cable mainly used in big occasions of bearing pressure, such as crossing the road, square and vibration of road, railway and etc., suitable for buried, tunnel, and wear the pipe laying. In order to make the cable withstand larger axial tension, we adopt low carbon steel wire by winding process, known as the steel wire armoured cable. Wrapped steel wire according to certain pitch circle after cabling, then squeeze sheathed on the conductor. The cable is generally used occasions with large span and bigger laying gap.

Anytekabel Co.,Ltd. in Changzhou, China, further improve the armoured cable manufacturing, to make it bear external mechanical forces as much as it can. Mechanical protective layer of Armoured cable can be added to cables of any structure, in order to increase the mechanical strength of the cable, improve the ability of anti erosion, design for prone to mechanical damage and easy to erosion area. More generally, armoured cable is buried power cable, transmiss power by power line. The purpose of Cable armoring layer is in addition to enhance tensile strength, compressive strength and other mechanical protection to extend the service life. Armored cable has a certain of external force resistance, can also prevent the mouse's tearing, not as to cause the power transmission problem through the armored.

The knowledge of the electric wire

Electric Wire is wire product used for transmission information can realize the electromagnetic energy conversion. When the family is decorated, the wire is indispensable to take cover engineering decorate building materials. To choose the right and high quality wire products, first of all you need to know some small common sense about the electric wire.
1. The difference between the wire and cable
Used for circuit decorate wire is usually referred to as wire and cable, wire and cable and no strict boundaries. If must distinguish, that electric wires are consisting of a root or a few soft wire, coated with soft sheath; Cable is composed of one or several root insulated wires, outside with made of metal or rubber tough outer package again. In domestic outfit generally don't need to cable, wire and will meet the requirements.
2. The classification of the household electrical wiring
Wire classification, different can be divided into various types according to use purpose. And other purposes such as household electrical wiring compared with engineering wires, its relatively low to the functional requirement of the wire. In particular, household electrical wiring has the following categories.
Hard wire: professional called BV wire, mainly used for power supply, lighting, socket, air conditioning, is fit for ac voltage up to and including 450/750 power equipment, electrical appliances, instruments and equipment with cable wires.

Flexible wire cable: professional called BVR wires, suitable for ac voltage up to and including 450/750 power equipment, electrical appliances, instruments and equipment with cable wires, such as distribution box. Flexible wire relatively hard line production is complex, high frequency circuit cord is bigger than the hard line carrying capacity.
Hard and Flexible wire respectively composed of single and copper thread, generally refers to the cable, low voltage wire and cable
3. Regular size of household electric wire
We often hear that how many square wire which refers to the size of the wire, the common size 2.5 square, 1.5 square, four square, 6 square, 10 square. Wire square is a square millimeter, refers to the wire cross-sectional area of the wire size.

Performance and characteristics of Shielding PUR flexible cable

Shielding PUR flexible cable formal models: TRVVP
wire core material: copper wire
number of cores: 2-60
sheath material: nitrile compound material
Nominal cross section: 0.08-95 (mm2)

It is widely used in dry or wet indoor, reciprocating bend free mobile no compulsory pull drag chain system. Such as machine tool processing equipment, logistics transportation system, port machinery, complete sets of equipment installation engineering. Product features: can be customized according to customer request color line core or coding line core. High quality PVC mixture, reduced the cable diameter reduced demand for installation space. Whole tin plated copper wire braided shielding to prevent external high-frequency electromagnetic interference. Design is cycled use life for 5 million times, the actual use has more than 6 million times.

Cable structure:
Conductor: using multi-strand fine ground and oxygen-free copper wire fine twisted into a bundle of level as a conductor, in accordance with DIN VDE 0295 grade 6
Insulation: high quality PVC mixture color: color line core or coding line core 3 core + yellow or green conductor
Shielding: tinned copper wire weaving, shield density 80% or higher
Sheath: high quality PVC mixture color: black, grey
Electrical properties:
Rated voltage U0 / U < 0.5 was 300/300 V p o. 5 was 300/500 V,
The test voltage: 3000 v U meet DIN VDE 0281 part 2.
Temperature range: ℃ mobile installation: 15 ℃ ~ + 70 ℃
Fixed installation: - 30 ℃ ~ + 70 ℃
When continuous movement, the minimum bending radius: 8 x cable diameter high flexible cable, oil resistance, abrasion resistance, bending resistance, UV protection; Movement speed can be up to 2m/s;Bending frequency can be as high as six million times continuously.

Jiansu Yafei Wire & Cable Co., Ltd
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Polyvinyl chloride plastic classification of wire and cable

Polyvinyl chloride (PVC) plastic is multicomponent plastic, according to the different usage, change the variety and dosage of chelating agent, can produce different varieties of wire and cable with polyvinyl chloride (PVC) plastic.
PVC cable according to its purpose on the wire and cable is different, can be divided into grade insulated cables and cable protection level material.

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1. insulated PVC
According to the using requirements of wire and cable and features, the types and properties of polyvinyl chloride (PVC) plastic insulation, requirements and main use.Fixed installation of power cable, mine cable, install the insulation of the wire.
2. sheath PVC
Polyvinyl chloride (PVC) plastic layer has good corrosion resistance, adequate mechanical properties, a certain amount of air resistance, soft, resistant to vibration, light weight, convenient processing and installation.
3. semiconductive PVC
Semi conductive PVC plastic can be used as shielding materials, for example, could serve as a 10kv PVC cable shielding layer.Half of conductive plastics used in high voltage cable shielding material, because the semiconducting material direct contact with the insulation material, mutual migration will happen, so try to choose the same as the insulation material of plasticizer or electrical good, small migration of plasticizer. Or in use process will affect the electric insulation performance of the insulation.
4. environmental protection the termite, rat cable sheath material
Termites and rats damage to cable, light interruption of power supply, or a major accident, damage to the power and communications departments.Ever used in cable sheath material to join toxic additives to kill termites, mouse, in order to protect the safe operation of the cable. But these toxic additives and personal will cause the pollution and harm to the environment. At present, the covering materials for use in more naphthenic acid is added to lead or ketone of naphthenic acid additives, modification of covering materials for the termite.
5. low smoke low halogen flame retardant sheath material
Using ordinary of PVC cable materials manufacturing cable combustion would produce a large number of black smoke, HCl and release a large number of corrosive gases, and instrumentation devices can cause great damage to human body. Low smoke low halogen flame retardant cable materials is a special PVC resin as basic material, adding modifier, additives and flame retardants, after mixing fully plasticizing uniform processing and high-tech products. It not only has excellent flame retardancy, but the burning is the release of smoke volume is low, the release value of HCl is low, combustion flame and can be observed from a nearby object. Compared with the ordinary PVC sheath material, the tensile strength and elongation at break is; Extrusion without special screw, its performance is also quite. Use this LSZH cable made of cable materials, fully applicable to the subway, high-rise buildings, power stations, radio and television center and computer center for wire and cable flame retardant high performance requirements.