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July 17,2023

Delay fuse principle.carrier fuse

　　　　Under the same overcurrent load conditions, the action speed of a delay fuse is slower than that of a fast blown fuse. However, this is not that the reaction speed of a delay fuse is slow, but rather that the energy required for the fuse to fuse is greater. It can be said that it not only has the ability to react to overcurrent, but also has the ability to distinguish the category or energy size of overcurrent. Generally speaking, overcurrent can be divided into two categories: surge and fault. Surge overcurrent is mostly caused by charging and discharging during circuit switching or the influence of surrounding circuits. The peak value of the pulse is large and the duration is short, and the energy released is often not large. Delay fuses can withstand such overcurrent impacts without causing fusing action; However, fault overcurrent is continuous, and even if the peak value is not necessarily high, its energy will greatly exceed the surge overcurrent. Delay fuses will usually rea

July 07,2023

Structural characteristics of fuses.difference between time delay and fast acting fuse

　　　　The fuse is mainly composed of three parts: the melt, the shell, and the support, among which the melt is a key component that controls the fusing characteristics. The material, size, and shape of the melt determine the fusing characteristics. Melt materials are divided into two categories: low melting point and high melting point. Low melting point materials such as lead and lead alloys have a low melting point and are prone to melting. Due to their high electrical resistivity, the cross-sectional size of the melt produced is larger, and the metal vapor generated during melting is more. They are only suitable for fuses with low breaking capacity. High melting point materials such as copper and silver have a high melting point and are not easy to fuse. However, due to their low electrical resistivity, they can be made into smaller cross-sectional sizes than low melting point melts. They produce less metal vapor during melting and are suitable for fuses with high breaking capacity.

November 10,2023

temperature control mattress protector.Here are some practical tips to know about fuses

　　　　What is a fuse? This is an excellent small device that can self destruct in the event of surges or other overcurrent conditions. Why do people create such a device? The reason is very simple, that is to protect other parts of the circuit where the fuse is located. Compared to replacing the entire circuit that may be destroyed, the cost of replacing a fuse is negligible.　　Due to the fact that fuses are a very common and replaceable component, we believe it is necessary to provide a more in-depth introduction to the purpose, testing, and diagnostic methods of fuses, as well as to showcase various types of fuses and their different shapes and sizes　　Common Sense 1: How to determine if a fuse is blown?　　If a fuse can be removed from the circuit, the simple method to determine whether it has blown is to conduct a continuity test. Take a multimeter and select continuity or resistance settings. Next, perform a quick test on the multimeter to determine if it is working properly by touching

August 18,2023

Will plug-in fuses be phased out?resettable ptc fuse

　　　　In fact, this is not the case. Although patch fuses have a wider range of applications than plug-in fuses, there is also a high demand for plug-in fuses in the market. Both types of fuses, patch and plug-in, have their own advantages. For different products, selecting the right one can maximize the effectiveness of the fuse. Currently, plug-in fuses will not be eliminated.　　Taking self recovery fuses as an example, the volume of patch based self recovery fuses is different from that of plug-in based self recovery fuses. Plug-in type fuses have a relatively larger volume and are generally used in circuits with low working voltage and high working current, such as power converters, motorcycles, automobiles, computer power supplies, micro motors, computer interfaces, CPUs, and other fields. And patch type fuses are mostly used in many electronic products and in many circuit boards such as mechanical equipment.　　With the development and progress of technology, fuses are not only limite

July 04,2023

Working principle of fuses

　　　　When current flows through a conductor, it will generate heat due to the presence of a certain resistance in the conductor. And the calorific value follows this formula: Q=0.24I2RT; Where Q is the heat generated, 0.24 is a constant, I is the current flowing through the conductor, R is the resistance of the conductor, and T is the time for the current to flow through the conductor; Based on this formula, we can easily see the simple working principle of a fuse. When the material and shape of the fuse are determined, its resistance R is relatively determined (without considering its resistance temperature coefficient). When an electric current flows through it, it generates heat, and as time increases, its heat also increases. The magnitude of current and resistance determines the rate of heat generation, while the construction and installation of a fuse determine the rate of heat dissipation. If the rate of heat generation is less than the rate of heat dissipation, the fuse will not

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Operating parameters of automobile fuse holder

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2023-04