1, wire: generally a single copper or aluminum wire, external plus light and soft insulation layer composition.

2, wire and cable: it is generally composed of several or several groups of wires stranded, and the wire has insulation, generally double insulation layer or more insulation layer, and some also with shielding layer and metal sheath or armor. 3, the difference between wire and cable, simply put, wire (wire) refers to the material used as a cable, is a part of the cable, that is, the cable contains wire (wire). This is the direct difference between wire and cable.

"Wire" and "cable" actually have no strict boundaries, can be separated in a narrow sense, and can also be collectively referred to as "cable" in a broad sense. General:

A single is called "line"; Multiple lines

② The diameter is small called "line"; Diameter screams "cable"

③ The structure is simply called "line"; Complex structure called "cable"

4, commonly used wire

Generally divided into hard wire and soft wire

Hard wire: Used for power supply, 220V lighting, socket, air conditioning

Soft wire (weak wire) : used for telephone, audio, network, video signal transmission

Copper core specification in general are: 1.0 = 20 a 1.5 = 25 a 2.5 = 34 a 44 a 6.0 4.0 = = 58 a

5, commonly used cables

Cable generally has more than 2 layers of insulation, wire and cable manufacturers are mostly multi-core structure, wound on the cable tray, the length is generally greater than 100 meters. Cables are generally laid indoors, in cable trenches, in pipelines and underground, or for overhead power transmission and other places.

Four, cable laying requirements

1, laying in the cable trench without sand (including indoor), for fire prevention needs, should use bare armored flame retardant (flame retardant) outer protective layer of the cable

2. If there are joints on the cable line, in order to prevent the failure of the joints from damaging the adjacent cables, the joints can be protected by fire protection boxes or other fire prevention measures

3. The cable can be placed directly at the bottom of the trench, and the bracket can also be installed in the trench to increase the number of laying cables

4, the cable is fixed on the bracket, the horizontal device, the outer diameter of the power cable and control cable is not 50mm, each 0.6m a support; Power cables with an outer diameter greater than 50mm are supported every 1.0m. Single-core cables arranged in triangles should be tied with straps every 1.0m. When the vertical device is installed, it should be fixed every 0.5 m

5. Power cables and control cables should be installed on the supports on both sides of the ditch. If this is not possible, the power cable should be placed on the support above the control cable

6, the cable trench should be installed with a continuous grounding wire device, grounding wire specifications should meet the requirements of the code. Wire and cable its metal bracket, the metal sheath and armor layer of the cable (in addition to the insulation requirements of the example should all be connected to the grounding device, in order to avoid the potential difference between the outer skin of the cable and the metal bracket, resulting in alternating current corrosion or high unit difference endangering personal safety

7. The metal structures in the cable trench should be galvanized or coated with anti-rust paint

Qingdao Tianxing Cable Co., Ltd. focuses on the production of customized wire and cable manufacturers, main: fire wire and cable, power cable, control cable and other products, exported to more than 40 countries and regions around the world, the annual production capacity of 1 billion yuan. 6000 square meters of storage, standing hundreds of millions of inventory, order demand for rapid distribution and delivery, large prices more favorable. Hotline: 16678668098