The starting time of protection has regularity, firstly, it is inversely proportional to the size of the components; Compared to the size of electronic devices, i.e. in the same series, such as the software fuse of the 250V series product, the smaller the current, the smaller the electronic device, which is twice the normal current. Due to its small size, fast heating, and faster startup protection time. Compared to the size of the fault current, it is easy to understand that the larger the fault current, the faster the component heats up and the faster the protection. When selecting a self recovery fuse, we all want to know whether the startup protection rate of the self recovery fuse is sufficient and immediate when a fault current occurs in the power circuit to protect the power circuit machine equipment. There are many models of self recovery fuses, and the starting protection rate varies among different models. And the time period required for starting protection under diffe
The raw materials of self restoring fuses are not prone to aging themselves. The aging condition of the self-healing fuse device is due to the close connection between the metal electrodes on both sides of the device and the raw materials of the self-healing fuse. By multiple actions, the resistance of the self restoring fuse will be higher than the original resistor. When the resistance value exceeds the main parameter R1max of the resistor after a large action, the fault indicates that the manufacturer cannot ensure that the machine equipment does not operate while maintaining the current IH. The raw materials of self restoring fuses are not prone to aging themselves. The aging condition of the self-healing fuse device is due to the close connection between the metal electrodes on both sides of the device and the raw materials of the self-healing fuse. The self recovery fuse has strict requirements for rolling process operation, ensuring that the performance of the self recovery
In this link, the components that can block the oscillating current are usually fuses, but the general fuses are only disposable. If self recovery fuses are used, then the instruments in this type of circuit can be used for Test effort. And this type of function can be guaranteed not only by self recovery fuses, but also by some temperature sensors. However, these electronic components are far from fast in terms of reflection time compared to self recovery fuses. Therefore, for circuits with high-precision instruments, if some temperature sensors are applied, the oscillating current can burn out the instrument before the resistor blocks the power circuit. The function of a self restoring fuse is to provide overcurrent protection in the power circuit. A circuit with a high-precision instrument must have a fuse to maintain the safety of the high-precision instrument. However, if human factors are often used to remove and replace fuses during frequent use, it is not specific, which i
With the continuous upgrading and upgrading of many products, the current electronic products have increasingly high requirements for fuses. In order to protect the circuit safety of various products, fuses also need to be continuously improved. There are many types of fuses now, such as disposable fuses. Self restoring fuses, patches, inserts, and other fuses in different packaging can be applied to high-voltage and low-voltage working environments according to different types of fuses. Nowadays, fuses are becoming increasingly important in many electronic circuits. Insert fuses are common components in circuits, with a wide variety of unique functions, and are an important component of the normal operation of daily circuits. Insert fuses are also commonly used in automotive fuses, and automotive insert fuses are generally used for the following purposes. At various key points (or parts) of the car line, there are generally plug-in or tubular fuses, such as ceramic and special j
Of course, car fuses are used in cars. Some vehicle wiring connections should be used for automotive fuses. Pay attention to small things when using car fuses. Next, I have summarized some questions about automotive fuses for everyone. Let's give us an example. Reminder everyone, there are some issues to pay attention to when using car fuses. All power circuits in the car will first pass through fuses, from computer power to anti-theft, lighting must first pass through fuse maintenance. If there is no fuse maintenance disconnection effect, the entire car cannot be turned off when burning. Fuses are made of aluminum, and long-term use of connectors can also lead to poor air oxidation contact. The actual effect of modifying a silver connector fuse with a sound system is the best, but timely replacement of a new fuse is also a good method. If a more critical and effective fuse is replaced, it will have good main performance. Improving the efficiency of household appliances can save
According to the application scope, tubular fuses can be divided into industrial appliances and household appliances; According to the application industry, tubular fuses can be divided into instrument, communication, power supply, lighting, automotive, etc. It is worth mentioning that there are two types of automotive fuses, namely high current and low current fuses. But the more common type of fuse in general cars is medium to low current fuse, and the wiper fuse mentioned today belongs to plug-in fuse. You can see the 25A (colorless and transparent) sign, in fact, this is the safety value of the fuse, so you must sit down before replacing it, but do not change other models. Firstly, the color of the car fuse represents its specifications. The most commonly used fuses are 10A, 15A, 20A, 30A, and 40A. The colors are red, blue, yellow, green, and orange. Secondly, the specifications of automotive fuses are divided into three categories: large, medium, and small. Cars generally