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Addtime:2023-08-18
Source:Yueqing Xujing Fuse Factory
On March 12, 2015, the logistics channel of China Industrial Electrical Appliance Network has been opened, and users in the logistics industry can log in to China Industrial Electrical Appliance Network to register as members to publish logistics information. China Industrial Electrical Appliance Network provides better service support for our customers, and hopes that customers in the logistics industry will release true and reliable logistics information based on the principle of honesty and credit. Now when you think of "logistics", you should think of the logistics and transportation problem of Double 11, in fact, logistics is a word imported from Japanese materials. Later, China defined logistics as: logistics is the process of organically combining transportation, storage, procurement, loading and unloading, packaging, circulation processing, distribution, information processing and other functions to achieve user requirements in the process of physical flow of goods from the place of supply to the place of receipt. Logistics refers to the whole process of planning, implementing and managing raw materials, semi-finished products, finished products or related information from the place of origin of commodities to the place of consumption of commodities through transportation, storage, distribution and other means at low cost in order to meet customer needs.
China Industrial Electrical Network Logistics is maritime logistics, land logistics, maritime logistics information, etc. can be published on the website. Logistics is a system that controls raw materials, finished goods, finished products and information, starting from supply, through the transfer and possession of various intermediate links and reaching the physical movement of the final consumer, so as to achieve the clear goals of the organization. Modern logistics is a product of economic globalization and an important service industry to promote economic globalization. The world's modern logistics industry is growing steadily, and Europe, the United States and Japan have become important logistics bases around the world. The transportation, warehousing, packaging, handling, loading and unloading, circulation processing, distribution and logistics information of objects are the seven parts of logistics. China Industrial Electrical Appliance Network will strictly regulate the logistics information and route data released by logistics enterprises.
The released logistics information will be quickly indexed by Baidu and 360 search engines, allowing customers to find the right logistics route more quickly. Modern logistics not only simply considers the distribution of goods from producers to consumers, but also considers the procurement of raw materials from suppliers to producers, as well as the transportation, storage and information of producers themselves in the manufacturing process of products, and comprehensively and comprehensively improves economic benefits and efficiency. Therefore, modern logistics is a strategic measure to meet the needs of consumers and unify market conditions such as manufacturing, transportation, and sales. This has a further meaning in depth and breadth than the concept of traditional logistics, which only regards it as a "logistics support system" and "playing a bridging role in sales activities". In general, logistics is an activity that includes basic functions such as transportation, handling, storage, storage, packaging, loading and unloading, circulation processing and logistics information processing, and it is an economic activity that flows from the place of supply to the place of receiving to meet social needs. In the past, the purpose of implementing logistics management was to achieve the established customer service level under the lowest possible total cost conditions, that is, to seek a dynamic balance of service advantages and cost advantages, and thus create a strategic advantage of enterprises in the competition. China Industrial Electrical Appliance Network is to provide customers with the right logistics product route at the right quantity and the right price at the right time and the right place.
Addtime:2023-08-18
The melt is blown at the crimping or other parts, and there are generally no serious burn marks. The reasons for this may be: the melt section is too small; The melt has scar defects during installation; The fuse porcelain tray is not fixed; The melt crimping is not tight; The melt runs too long and produces a copper-aluminum oxide film, which increases the contact resistance.
Addtime:2023-08-18
High-voltage fuses are simple protective appliances, which are used to protect electrical equipment from overload and short-circuit currents; According to the installation conditions and uses, choose different types of high-voltage fuses, such as outdoor drop type, indoor type, for some special equipment high-voltage fuses should be selected special series; What we often call fuses is a fuse.
Addtime:2023-08-18
Fuse in low-voltage distribution system is a kind of electrical appliance that plays a role in safety protection, fuse is widely used in power grid protection and electrical equipment protection, when the power grid or electrical equipment short circuit fault or overload, can automatically cut off the circuit, to avoid electrical equipment damage, to prevent the spread of accidents.
Addtime:2023-08-18
During the normal operation of electrical equipment, the fuse should not be blown out; In the event of a short circuit, it should be fused immediately; When the current changes normally (such as the motor starting process), the fuse should not be blown out; When the electrical equipment continues to be overloaded, the fusing should be delayed. The rated voltage of the fuse should be greater than or equal to the rated voltage of the circuit.
Addtime:2023-08-18
The high-voltage drop fuse adopts single-phase operation of an insulated rod and does not allow operation with load. It has been found through practice that when the phase is mistakenly pulled with load, most cases are similar to disconnecting the parallel loop or loop, and the disconnection voltage is low, so strong arcing does not occur. When the second phase is pulled open with load, the break voltage is higher because the break voltage is the line voltage.
Addtime:2023-08-18
"Graphene, carbon nanotubes, aerogels, fullerenes, amorphous alloys, superconducting materials, metamaterials, ionic liquids, 3D printing materials, and metal foam." The New Materials Industry Capital Technology Summit released ten new materials with potential in the future.
Addtime:2023-08-18
Users in the logistics industry can log in to China Industrial Electrical Appliance Network to register as members and publish logistics information. China Industrial Electrical Appliance Network provides better service support for our customers, and hopes that customers in the logistics industry will release true and reliable logistics information based on the principle of honesty and credit. Now when you think of "logistics", you should think of the logistics and transportation problem of Double 11, in fact, logistics is a word imported from Japanese materials.
Addtime:2023-08-18
1. The specifications of the fuse should meet the requirements of the protected lines and equipment; The melt shall not be cut small or used together, and metal wire is strictly prohibited instead of fuse.
2. The melt should have a protective cover. Tubular fuses shall not be used without tubes; Melters with filling materials shall not be modified for use.
Addtime:2023-08-18
In order not to fuse the fuse when the motor starts, the rated current of the selected fuse is 1.5~2.5 times larger than the rated current of the motor, so that even if the motor is overloaded by 50%, the fuse will not blow, but the motor will not burn out in 1 hour. Therefore, the fuse can only be used as short-circuit protection for motors, wires, and switchgear, and cannot play the role of overload protection. Only equipment such as thermal relays can be used as overload protection for motors.
Addtime:2023-08-18
When removing the DC control fuse, it should be positive first, then negative. When installing the DC control fuse, it should be installed first negative and then positive. The purpose of this is to prevent parasitic circuits and avoid malfunction of the protective device. The fuse should be installed and taken quickly, not continuously turned on and off, and there should be a period of time between removal and reinstallation (should not be less than 5 s).
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