2023.09.19 Customer Annual Factory Audit_Industry Trends_News & Events

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August 03,2023

What is the principle and material of a fuse.mini blade fuse box

　　　　When current passes through a conductor, contact occurs and the conductor may generate heat because it has a certain resistance. And the calorific value is calculated according to this formula: Q=0.24I2RT.　　2. Among them, Q is a calorific value and 0.24 is a parameter. I is the current flowing through the conductor, R is the resistance of the conductor, and T is the time flowing through the conductor. By using this formula, you can easily discover the simple principle of fuses.　　When the raw materials and appearance of the fuse manufacturing are clear, its resistance R is relatively clear (if its resistance temperature coefficient is not considered). When an electric current flows through it, it becomes hot, and over time, its calorific value also increases.　　4. The height of current and resistance determines the speed of thermal energy, while the structure and assembly of the fuse determine the speed of thermal energy loss. If the speed of thermal energy is lower than the speed of

October 10,2023

Setting of fuse position.motorcycle blown fuse symptoms

　　　　To fully utilize the protective effect of a fuse in a circuit, the position of the fuse in the circuit should be considered when designing the circuit.　　The fuse can be blown in a timely manner to protect the circuit and switch;　　And the fuse cannot be blown in a timely manner, unable to protect the front-end circuit and switch. If a short circuit occurs at B, the fuse can only be blown in a timely manner, which can protect the circuit;　　As shown in the circuit diagram, when a short circuit occurs at point A, the switch will still burn out, while the fuse will not blow, meaning that the fuse in this circuit cannot protect the circuit and electrical components. So the circuit diagram is the most reasonable one for designing the position of the fuse in the circuit.　　Note: For the case where relays and fuses are integrated in the same electrical box, the fuse connection is not closely related (as the possibility of a short circuit occurring within the same electrical box is not high),

September 22,2023

How to choose a fuse.air conditioner fuse keeps tripping

　　　　Firstly, what is a fuse? Fuses are made of low melting point alloys, commonly used as alloys of lead and tin (75% lead and 25% tin), as well as alloys of lead, tin, and lead antimony. Generally, fuses are installed in fuse boxes (fuses) or knife switches and connected in series in the circuit. When the current in the circuit is too high, due to the thermal effect of the current, the fuse first melts and is burned out, causing the circuit to automatically cut off, thereby protecting the safety of the power supply and electrical equipment. The rated current of a fuse (the maximum allowed current) and the fusing current (the minimum current that causes the fuse to blow) are its two important parameters, and its fusing current is generally about twice the rated current. The selection of the rated current of the fuse should be correct, so that it does not blow during normal power consumption of the circuit. In case of severe overload or short circuit, it will immediately blow and automa

October 26,2023

tv fuse blows when plugged in.The impact of fuse aging on usage

　　　　After the fuse ages, there is no danger of generating the current that should be cut off and the fuse not blowing. The aging of a fuse is equivalent to a decrease in the rated value (current) rather than an increase, resulting in the circuit being cut off at a small overload current or pulse.　　The durability test in the IEC standard is the life test, which is conducted using a DC power supply at normal temperature:　　a. Measure the voltage drop until the temperature stabilizes;　　b. 1.2 times the rated current for 1 hour and cut off the current for 15 minutes. Cycle 100 times;　　c. Measure the voltage drop after powering on for 1.5 In for 1 hour;　　d. Measure the voltage drop using the same method as A.　　Requirement: The voltage drop change before and after the test should not exceed 10%, and the identification should still be clear and distinguishable. There should be no deterioration in the end cap solder joints.

November 24,2023

glow plug fuse price.Self recovery fuse selection

　　　　1. Determine the following parameters of the circuit:　　A Large working environment temperature b Standard working current c Maximum working voltage (Umax) d Maximum fault current (Imax)　　2. Select self restoring fuse components that can adapt to the ambient temperature and standard operating current of the circuit　　Use a temperature reduction {ambient temperature (℃) working current (A)} table and select the temperature that best matches the ambient temperature of the circuit. Browse this column to view values that are equal to or greater than the standard operating current of the circuit.　　3. Compare the high electrical rating of the selected component with the high operating voltage and fault current of the circuit　　Use the electrical characteristic table to verify whether the components you selected in step 2 will use the high operating voltage and fault current of the circuit. Check the high operating voltage and high fault current of the device. Ensure that Umax and Imax are g

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2023.09.19 Customer Annual Factory Audit

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2023-09