PVC Jacketed Electric Cable

As a leading cable manufacturer, we understand the importance and widespread usage of power cables in various industries. In this blog post, we will delve into the diverse applications of power cables and shed light on their crucial role in enabling the efficient transmission of electrical energy. Whether it's delivering electricity to homes, powering industrial equipment, or supporting infrastructure projects, power cables play a vital role in our modern world.   1. Residential and Commercial Power Distribution: Power cables are extensively used in residential and commercial buildings to provide reliable electricity to households, offices, and commercial spaces. These cables play a key role in distributing electrical power from the main power source to individual electrical outlets, lighting fixtures, appliances, and other electrical devices.   2. Industrial Power Supply: In industrial settings, power cables are employed to ensure uninterrupted and efficient power supply to heavy machinery, manufacturing equipment, and industrial processes. These cables are designed to withstand high voltages, harsh environments, and heavy loads, making them indispensable for industries such as manufacturing, mining, oil and gas, and transportation.   3. Renewable Energy Integration: With the growing focus on sustainable energy sources, power cables are crucial for transmitting electricity generated from renewable energy systems such as solar farms, wind turbines, and hydroelectric power plants. These cables form the backbone of the power transmission infrastructure, enabling the efficient integration of renewable energy into the grid and facilitating the transition towards a greener future.   4. Infrastructure and Construction Projects: Power cables are integral to large-scale infrastructure projects such as airports, railways, highways, and residential complexes. They are used in underground and overhead power transmission systems, underground distribution networks, and underground substations. These cables provide reliable and efficient power supply to various components, ensuring the seamless operation of infrastructure projects.   Power cables are the lifeline of our electrical systems, enabling the distribution and transmission of electricity to homes, businesses, and industries. From residential power distribution to industrial applications and renewable energy integration, the versatile applications of power cables are crucial for powering our modern world. As a trusted cable manufacturer, we are committed to delivering high-quality and reliable power cables that meet the diverse needs of our customers across various sectors.

Generally speaking, power cables mainly include disconnection faults, grounding or short-circuit faults, disconnection and grounding faults, flashover faults, etc. We can determine the fault type of power cable according to some of the following methods. An insulation resistance meter is needed here. For wires and cables, place the insulation resistance meter at one end of the line to measure the insulation resistance of each phase.   1) When one or more cores of the shake measuring cable are discontinuous and are grounded through a resistor, it can be judged to be a disconnection and ground fault.   2) When the insulation resistance of one or several cores of a cable to the ground is measured remotely, or the insulation resistance between cores is much lower than the normal value, but higher than 100 kiloohms, it is a high resistance ground fault.   3) When the insulation resistance of one or more cores of the shaking cable to the ground is high or normal, a conductor continuity test should be conducted to check whether there is any disconnection. If so, it is a disconnection fault.   4) When the insulation resistance of one or several cores of a cable to the ground is measured remotely, or the insulation resistance between cores is less than 100 kiloohms, it is a low-resistance grounding or short-circuit fault.   5) Flashover faults often occur in preventive withstand voltage tests, and most of them occur at cable terminals and intermediate joints. Flashover sometimes occurs multiple times in a row, each time separated by seconds to minutes.   The instruments and equipment used in the past include QF1-A cable detector, DLG-1 flash detector, cable path meter and fault location meter, etc. The current popular test method is the flash test method, which includes flash and direct flash, and the flash test method is commonly used. The flash test has high accuracy, simple operation, safety and reliability. Its equipment mainly consists of two parts, namely high-voltage generating device and current pulse meter. The high-voltage generating device is used to generate DC high voltage or impact high voltage, which is applied to the faulty cable to force the fault point to discharge and generate a reflected signal. The current pulse meter is used to pick up reflected signals to measure fault distance or directly use low-voltage pulses to measure open circuits, short circuits or low resistance faults.