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technical knowledge

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  • What quality problems will occur in common cable production?

    What quality problems will occur in common cable production? 1. The plasticization of the extrudate is not good. The wire and cable manufacturers mentioned the plasticization problem in the temperature control requirements mentioned above. Generally, the poor plasticization mainly manifests as: the surface of the extruded cladding plastic is black, dull, and has small cracks. ; Extruded cladding has obvious seams at the glue joint; Spiral cable temperature
    Release time: 2019-12-30 Clicks: 27

  • What is the cause of the cable heating during operation?

    What is the cause of the cable heating during operation? Judging the quality of the wire needs to be judged by combining various factors. The main judgment method is to observe and measure the weight. Poor quality wires usually have insufficient weight and length, and there are too many impurities in the copper core of the wire. These details need to be taken Observe, you can naturally understand the quality of the wire more directly.
    Release time: 2019-12-25 Clicks: 36

  • What to do if water enters the cable? Is there any way to solve it?

    What to do if water enters the cable? Is there any way to solve it? Water ingress of cables is also a very common power cable failure. How do you solve the problem of water ingress of cables? It is troublesome to have water in the cable. So far, there is no particularly effective method to solve it. Either do the intermediate connector or replace the cable entirely. Wire and cable manufacturers
    Release time: 2019-12-17 Clicks: 27

  • What are the differences between fire-resistant cables and flame-retardant cables

    What are the differences between fire-resistant cables and flame-retardant cables? Principles of wire and cable manufacturers: Fire-resistant cables and flame-retardant cables have different principles. The halogen-containing cable flame retardant principle is based on the flame retardant effect of halogen, and the halogen-free cable flame retardant principle is based on the precipitation of water to reduce the temperature to extinguish the fire. Works even in a fire
    Release time: 2019-12-13 Clicks: 30

  • What causes the damage of the rubber sheathed wire and cable?

    What causes the damage of rubber sheathed wires and cables? If any product is damaged or has quality problems, there are certain influencing factors, and rubber sheathed products are no exception; we are prone to some damage and quality when using rubber sheathed cables Problem, so what causes the rubber sheathed wire and cable to break? Is there any way to prevent the rubber sheathed cable from being damaged?
    Release time: 2019-12-10 Clicks: 46

  • What are the causes of cable failure?

    What are the causes of cable failure? Moisture of the insulation will cause the breakdown voltage of the cable to drop. The main reasons for cable moisture include: poor cable manufacturing and small holes or cracks in the metal sheath. Water inflow due to the structure of the joint box or terminal box being not sealed or poorly installed. The metal sheath was punctured by foreign objects or corroded. Aging of insulation will cause the breakdown voltage of the cable to fall and cause failure
    Release time: 2019-12-06 Clicks: 42

  • Things to watch out for when laying cables

    Things to pay attention to when laying cables. It is not a simple matter to lay cables. The engineering of the power industry is sloppy. What should we do when laying cables? What are the matters that our wire and cable manufacturers should pay attention to: laying as much as possible when laying Hoisting in the forward direction, when it is restricted or has special requirements at the construction site, it can also be used in the reverse direction. Either way,
    Release time: 2019-12-03 Clicks: 33

  • Causes and Solutions of Poor Plasticization of Cables in Production

    Causes and Solutions to Poor Plasticization of Cables in Production Henan Electric Wire and Cables There are many reasons for cable product problems during the cable production process. Today, we will briefly talk about the causes and elimination methods of poor plasticization of cables. What is the appearance of poor plasticization of the cable? The surface of the plastic layer of the cable has a toad skin problem, the surface of the plastic layer has black signs, and there are some fine
    Release time: 2019-11-29 Clicks: 46

  • What are the detection methods when a cable fails?

    What are the detection methods when a cable fails? The main types of cable faults are parallel faults and series faults. Series fault refers to the disconnection of multiple or one conductor in the cable. Generally, it is difficult to find a series fault before disconnecting a conductor in the series. Only when a short-circuit situation occurs, it is easy to find a series fault. . and
    Release time: 2019-11-22 Clicks: 49

  • What are the reasons for the easy damage of wires and cables in winter?

    What are the reasons for the easy damage of wires and cables in winter? In the daily production work and living environment, the electric wire has very important functions. This directly determines whether the entire electricity consumption environment reaches a more secure and stable standard. If the quality of the wire is poor or the problem of damage occurs, this will cause the electricity consumption environment. Severely affected, and even unexpected situations may occur, then
    Release time: 2019-11-19 Clicks: 28

  • Pay attention to routine maintenance of wires and cables

    The use of electricity has led to the rapid development of modern life. If electric wires are not used and maintained properly, it may cause some safety hazards, which will lead to accidents, especially fires. In the use of pumps and motors, the cable is the main. In order to safely construct and ensure the quality of the cable, we need to perform the following maintenance on the cable: regularly clean the dust accumulated on the wires and cables to prevent
    Release time: 2019-11-15 Clicks: 45

  • How to find cable fault points

    Method for finding cable fault points 1. Sound measurement method The so-called sound measurement method is based on the sound of discharge from a faulty cable (cable manufacturer). This method is more effective for high-voltage cable core wire discharge to the insulation flashover. The equipment used in this method is a DC withstand voltage tester. Henan wire and cable produce "Zi, Zi"
    Release time: 2019-11-08 Clicks: 48

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