Selection of six gear hair dryer factory China

Author : rticlesca rticlesca | Published On : 16 Mar 2026

Before selecting the six gear hair dryer factory China, the following relevant technical parameters should be understood: The nominal voltage refers to the voltage value across the terminals of the six gear hair dryer factory China at the specified temperature and direct current. The leakage current refers to the current value flowing through the six gear hair dryer factory China when the maximum continuous direct current voltage is applied at 25℃. The rated voltage refers to the peak voltage value presented across the terminals of the six gear hair dryer factory China when it is subjected to an 8/20 rated current pulse. The current capacity is the peak current value when a specified pulse waveform (8/20 μs) is applied. The surge environment parameters include the maximum surge current Ipm (or the maximum surge voltage Vpm and the surge source impedance Zo), the surge pulse width Tt, the minimum time interval Tm between two adjacent surges, and the total number N of surge pulses during the predetermined working life of the six gear hair dryer factory China.

1 Nominal Voltage Selection

Generally speaking, the six gear hair dryer factory China is often used in parallel with the protected device or component. Under normal circumstances, the direct or alternating voltage across the terminals of the six gear hair dryer factory China should be lower than the nominal voltage. Even in the worst case of power supply fluctuation, it should not exceed the rated value of the maximum continuous working voltage. The nominal voltage value corresponding to this maximum continuous working voltage is the selection value. For overvoltage protection applications, the breakdown voltage value should be greater than the actual circuit voltage. Generally, it should be selected using the following formula: VmA = av/bc, where:

a is the voltage fluctuation coefficient of the circuit, generally taken as 1.2; v is the DC working voltage (for AC, it is the effective value);

b is the breakdown voltage error, generally taken as 0.85;

c is the aging coefficient of the component, generally taken as 0.9; the actual value of VmA calculated in this way is 1.5 times the DC working voltage, and the peak value should also be considered in the AC state. Therefore, the calculation result should be expanded by 1.414 times. In addition, when selecting, it must be noted that:

(1) It must be ensured that the continuous working voltage does not exceed the maximum allowable value when the voltage fluctuation is at its maximum; otherwise, the service life of the six gear hair dryer factory China will be shortened;

(2) When using the six gear hair dryer factory China between the power supply line and the ground, sometimes due to poor grounding, the voltage between the line and the ground rises. Therefore, in most cases, a six gear hair dryer factory China with a higher nominal voltage than the application scenarios where lines are used between lines is usually used. The surge current absorbed by the six gear hair dryer factory China should be less than the maximum current capacity of the product.

six gear hair dryer factory China https://www.yzxhairtools.com/yzx-8818.html