02
2023-06
Common faults and treatment of power cables
To improve the technical level of cable fault testing, different methods should be adopted for different fault properties, and new technologies and new equipment should be continuously introduced. At the same time, experience should be explored on new equipment to develop new functions. Such as the testing technology that sends audio signal to the cable and receives the signal at the fault point
2023-06-02
02
2023-06
How can we really distinguish between good and bad quality cables and wires?
It may be more difficult to detect if the meter is tampered with, because customers generally do not have the equipment to actually measure the meter, and the same method of weighing can be used to know whether the cable is meter. Or it is also a good way to let the factory print the rice mark when producing, but it should be noted that there is no way to print the rice mark on the wire with a diameter of less than 5mm.
2023-06-02
02
2023-06
In recent years, the types of cables that have been in high demand in the market
As the basic accessories of the industry system, cables are widely used. Therefore, in the case of rapid economic development in our country, the cable market prospect is also very promising. In the next few years, there will be considerable development in some cable markets, and some cable products will usher in a large market demand.
2023-06-02
02
2023-06
Analysis of the real difference between national standard cables and non-standard cables
A sensitive topic that cable practitioners are familiar with in recent years: it is too difficult to sell national standard cables. Practitioners in the market are really helpless
2023-06-02
02
2023-06
Test method for dielectric strength of insulated wire and cable
The insulation strength of wires and cables refers to the ability of the insulation structure and insulation materials to withstand the action of an electric field without breakdown. In order to check the quality of wire and cable products and ensure the safe operation of the products, insulation strength tests are generally required for all insulation types of wires and cables. .
2023-06-02
02
2023-06
What are the advantages of single-core cables and multi-core cables?
The advantages of single-core cables are small cross-sectional area ratio, not easy to oxidize, short-circuit capacity impact resistance, and long service life. The disadvantage of single-core wires is that the wire is relatively hard, and it is difficult to pull the wire in some places, so it is difficult to straighten after bending, and it is easy to damage the wire after repeated bending. Advantages of multi-core cable Multi-core cable refers to a cable with an upper insulating layer of copper core cable
2023-06-02
02
2023-06
What is the difference between flame retardant cable and fire resistant cable?
Ordinary people are very easy to confuse the concepts between flame-retardant cables and fire-resistant cables. Even flame-retardant cables have many advantages that are more suitable for use in chemical companies, such as low-halogen and low-smoke flame-retardant. But in general, fire-resistant cables can replace flame-retardant cables, but flame-retardant cables cannot replace fire-resistant cables.
2023-06-02
02
2023-06
Will the ampacity of the cables be reduced when a large number of cables are laid in groups?
When a large number of cables are laid in groups, the current carrying capacity of the cables is reduced due to mutual heating. Sometimes it is necessary to consider replacing cables with large specifications with two or more parallel cables of smaller specifications, because cables with large cross-sections will reduce the carrying capacity per unit cross-section due to skin effect and proximity effect
2023-06-02
02
2023-06
Briefly describe the difference between cable core and quality?
The one with more cores is called a multi-core cable. Common multi-core wires are: 10 cores, 12 cores, 16 cores, 24 cores, 32 cores, etc. The multi-core cable is an upgraded version of the single-core cable. Since there are more and more occasions for three-phase four-wire power supply, three-phase five-wire power supply and multi-circuit power supply in actual use, the requirements for occupied space and laying occasions are also getting higher and higher.
2023-06-02
02
2023-06
Do you know what problems are prone to occur in the operation of wires and cables?
As my country's industrial level is getting higher and higher, it can be said that wires and cables are everywhere. In recent years, the construction of cables into the ground has also developed very rapidly. However, with the increasing number of cable lines and the increase in operating life, cable faults Gradually increasing, the faults of the cable body, cable accessories, and cable auxiliary equipment that occurred during the cable operation also increased significantly. The reasons for these faults will now take everyone to take a look.
2023-06-02
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