AC power cord manufacturers

There are many manufacturers of AC power cords, but the product quality and standards are uneven. Shenzhen and TEDA Electronic Technology Co., Ltd. have been specializing in power cords for more than 10 years and can produce plugs and power cords that meet the standards of various countries on time.

Power cord-The power cord is a wire that carries current. The current transmission method is usually point-to-point transmission. The power cord can be divided into ac AC power cord according to the purpose and click here to add a picture to explain the dc DC power cord. Generally, the ac power cord is a wire that passes higher voltage AC. This kind of wire needs a unified standard to obtain safety certification due to the higher voltage. It can be officially produced. The dc line basically passes DC voltage with a lower voltage, so the safety requirements are not as strict as the ac line, but for safety reasons, all countries still require unified safety certification.

AC is an AC power source. In China, AC mains power changes its positive and negative poles at a rate of 50Hz per second (there is no positive or negative)

AC is alternating current: "AC" for short. Generally refers to the voltage or current whose size and direction change periodically with time. Its most basic form is a sinusoidal current. The standard frequency of AC power supply in my country is set at 50 Hz. The form of alternating current with time can vary. The application range and effects of different forms of alternating current are also different. Sinusoidal alternating current is the most widely used, and other non-sinusoidal alternating currents can generally be converted into superpositions of sinusoidal alternating currents after mathematical processing. Sinusoidal current (also called simple harmonic current) is a simple harmonic function of time

i=Imsin(ωt+φ0)

When the coil rotates at a constant speed in the magnetic field, alternating current that periodically changes in size and direction is generated in the coil.

The alternating current used now generally changes direction and intensity by 52 Hz per second.

Our common electric lights, motors, etc. use alternating current. In practice, alternating current is indicated by the symbol "~".

The law of the change of current i with time can be seen from this: sinusoidal alternating current needs to be described by three physical quantities of frequency, peak value and phase. The basic issues to be discussed in alternating current are the current and voltage relationships and the distribution of power (or energy) in the circuit. Because alternating current has the characteristics of changing with time, it has produced a series of characteristics that are different from DC circuits. The components used in the AC circuit not only have resistance, but also have capacitive components and inductive components. When more components are used, the phenomenon and rules are complicated.