Posts

Precautions for OPPC Cables During Transportation and Installation

-
Image
 For OPPC phase line fiber optic cable conductor, due to the existence of discharge, over the pulley, tightening the line caused by the structure elongation and operation of the temperature rise in the process of expansion elongation and creep elongation generated by plastic deformation, so the fiber residual length requirements are very strict. Fiber optic units should have good mechanical protection to ensure that the fiber is not extruded. To prevent moisture intrusion and affect the service life of the fiber, the fiber should be placed in a closed tube, or take other moisture-proof measures. Then OPPC phase line fiber optic cable wire in the transportation and installation process should pay attention to what issues? 1. The cable tray with fiber optic cable should be rolled in the direction indicated on the side of the plate. Rolling distance should not be too long, and generally should not exceed 20 meters, rolling should pay attention to prevent obstacles to damage the packaging
Read more

What are The Main Methods of Power Cable Withstand Voltage Test

-
Image
A cable withstand voltage test is a way to find faults in the presence of cables. It is easily affected by various factors during the test, resulting in problems such as failure and short circuits. The main methods of several cables to withstand voltage tests are described below. The First, Ultra-Low Frequency Withstand Voltage Test The ultra-low frequency (0.1Hz) withstand voltage test method first appeared in 1980. And it is mainly a non-destructive test method for observing whether there is an insulation defect in cable operation. And the method has been verified by a large number of laboratory tests and field tests.  The low-frequency withstand voltage test has a good application effect in the low-voltage power cable withstand voltage test. The method utilizes the principle of converting 50 Hz alternating current into direct current voltage through rectification and filtering.  And then converting the direct current voltage into an alternating current voltage of 1 kHz through an in
Read more

What are the Main Factors Affecting The Price of Copper?

-
Image
Factors affecting copper prices include supply, demand, spot sales of commodities, market pressure, and current inventory levels. The Main Factors Affecting The Price of Copper 1. Supply and Demand According to economics, when a commodity is in short supply, its price will fall, otherwise it will rise. At the same time, the price will in turn affect supply and demand. When the price of a commodity rises, supply will increase and demand will decrease. Conversely, demand will rise and supply will decrease. Thus, price and supply, and demand will influence each other. An important indicator reflecting supply and demand is inventory, which is generally measured by stock exchanges. 2. Economic Situation Copper is an important industrial raw material and its demand is closely related to the economic situation. When the economy is growing, the demand for copper increases, which leads to higher copper prices. When the economy is in recession, copper demand shrinks and copper prices
Read more

The Types and Applications of Airport Cables

-
Image
Airport cables are a crucial component of any airport's infrastructure, as they provide the necessary connectivity for various systems and equipment. There are several different types of airport cables, each with its specific applications and advantages.  Types of Airport Cables One of the most important types of airport cables is power cables.  These cables are used to provide electrical power to a wide range of airport equipment, including runway lighting, passenger boarding bridges, and baggage handling systems. And other essential systems. Power cables are typically made from copper or aluminum, and are designed to carry high-voltage electrical current.  To ensure the safety and reliability of the electrical power supply, power cables are often installed in underground conduits or other protected areas. Another common type of airport cable is data cable.  These cables are used to transmit data between various airport systems and equipment, such as computers, servers, and other
Read more

Analysis of The Causes of Cable Insulation Breakdown and Preventive Measures

-
Image
We combine our experience in cable operation over the years with the application of solid Bauer edge theory to analyze the causes of insulation breakdown of power cables.  The purpose is to cast a brick to attract jade, and electrical counterparts to find specific measures to prevent cable insulation breakdown , improve the level of safe operation of the cable and extend the service life of the cable. I. Breakdown of Solid Insulation 1. Solid insulation breakdown of the form of insulation material is also known as dielectric. When the voltage applied to the dielectric exceeds a certain critical value, the electric field strength in the dielectric exceeds the level it can withstand. Through the dielectric current increases sharply, the dielectric rupture or decomposition, the complete loss of insulation capacity. This phenomenon is called dielectric breakdown. Different dielectric, the form, and mechanisms of breakdown are different, field dielectric breakdown can generally be divided i
Read more

Connecting Your Equipment: Industrial Equipment Cables and Their Applications

-
Image
Industrial cables are a type of electrical cable that are specifically designed for use in industrial settings. These cables are typically used to power machinery, lighting, and other equipment in factories, warehouses, and other industrial facilities. Some of The Most Common Types of Industrial Cables Include: There are several different types of industrial cables, each of which is designed to meet specific requirements and applications.  1. Flexible cables - Flexible cables are designed to be flexible and easy to install, and they are typically used to power portable or mobile equipment. These cables are often made of rubber or plastic, and they are available in a variety of sizes and conductor materials. 2. Control and instrumentation cables - Control and instrumentation cables are used to carry low-voltage signals and control signals in industrial settings. These cables are typically made of twisted pairs or coaxial cable, and they are designed to be resistant to electromagnetic i
Read more

Future Trends in Low-Voltage Cables: Advances in Power Transmission and Communications

-
Image
Low-voltage cables have played a crucial role in power transmission and communication systems for many years. With the advent of new technologies, the role of low-voltage cables is becoming more critical than ever. In this essay, we will explore the future trends in low-voltage cables, specifically in power transmission and communications. We will look at emerging technologies, materials, and techniques that are likely to shape the future of low-voltage cables. Section 1: The Need for Advances in Low-Voltage Cables The increasing demand for efficient power transmission and communication systems The limitations of current low-voltage cable technology The potential benefits of advances in low-voltage cables Section 2: Emerging Technologies in Low-Voltage Cables Superconducting low-voltage cables: their advantages and limitations Fiber optic low-voltage cables: their applications and potential benefits Nanotechnology in low-voltage cables: the potential for enhanced performanc
Read more