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The Structure And Performance Of The Power Cord
- Aug 03, 2017 -

Power cord as an amplifier of energy inlet its role should not be belittled! The good or bad power line will determine the input amplifier power smoothness, like the faucet, the water pressure in the normal circumstances, the better faucet, a smooth, poor faucet splash, this and waterworks or plumbing does not matter. In other words, as long as the voltage is normal and stable, the role of power cord is very important!

In physics, the power cord is the place where the current is provided, that is, Power Cord the electron goes to the cathode and the proton runs toward the cathode.

Power line According to the use can be divided into AC AC power line and DC power cord, usually the power line is through a higher voltage AC wire, this kind of wire because of high voltage needs to obtain a unified standard safety certification can be formally produced. The DC line is basically through the low voltage DC, Power Cord so in the security requirements and no power line is strict, but security, countries still require unified security certification. The structure and performance of the power cord are described below:

The main structure of the power cord is outer sheath, Power Cord inner sheath and conductor, and the common transmission conductor is copper, aluminum wire, etc.

(1) Outer sheath is called protective sheath, is the outermost layer of the power cord sheath, this layer of outer sheath to protect the role of the power cord, Power Cord the outer sheath has a strong characteristics, such as high temperature resistance, low-temperature resistance, natural light interference, good performance, high service life, material environmental protection and other characteristics.

(2) Inside sheath: Inner sheath is also called insulating sheath is the power line indispensable middle structure part, insulation sheath of the main use as the name implies insulation, to ensure the power supply line security, so that the copper wire and air will not produce any leakage phenomenon, Power Cord and insulation sheath material to be soft, to ensure a good inlay in the middle.

(3) Copper wire: Copper wire is the core of the power cord, copper wire is mainly the carrier of current and voltage, the density of copper wire directly affect the quality of the power cord. The material of the power cord is also an important factor of quality control, and the quantity and flexibility of the copper wire are also considered as one of the factors.

(4) Inner sheath: The inner sheath is a layer of material that wraps the power cord between the shielding layer and the wire core, generally PVC or polyethylene plastic. Power Cord There are also low smoke and no halogen. In accordance with the requirements of the process, so that the insulating layer will not be exposed to water, air or other objects, to avoid damp insulation and insulating layer from mechanical damage.

Function: Power cord for home appliances, although only accessories, but the use of home appliances is playing a vital role, if the power line is broken, the entire appliance can not be used. Household power cords should be used bvv2x2.5 and bvv2x1.5 Models of electrical wiring. BVV is a national standard code, Power Cord for copper sheath line, 2x2.5 and 2x1.5 represent 2 core 2.5 square millimeter and 2 core 1.5 square millimeter respectively. In general, 2x2.5 line, Trunk, 2x1.5 do a single electrical feeder, switch line. Single-phase air conditioning line with bvv2x4, and another dedicated ground.