Armored cables are a special type of cable that plays a vital role in power transmission and distribution. Let's take a closer look at the components, characteristics, and applications of armored cables.
I. Components of Armored Cables
1. Conductor: The conductor of an armored cable can be copper or aluminum and is responsible for conducting the current.
2. Insulation: The conductor is protected by a layer of insulating material, typically polyethylene or cross-linked polyethylene, to isolate the conductor and prevent current leakage.
3. Armor: Armored cables are unique in that they have a metal armor layer, which is the biggest difference from ordinary cables. The armor can be made of metal materials such as steel tape or steel wire, and its primary function is to provide mechanical protection and electromagnetic shielding.
4. Outer Sheath: The outer sheath is the cable's protective outer layer, typically made of materials such as polyvinyl chloride (PVC) or polyethylene (PE), protecting the cable from external environmental influences.
II. Characteristics of Armored Cables
1. Mechanical Protection: The armor is a notable feature of armored cables, providing excellent mechanical protection. This gives armored cables advantages in harsh environments and underground installations, allowing them to withstand a certain degree of physical damage.
2. Electromagnetic Shielding: The metal armor can also effectively shield external electromagnetic interference, ensuring stable current transmission within the cable.
3. Corrosion Resistance: Due to its metal armor layer, armored cables are more resistant to corrosive environments, making them suitable for complex and diverse use cases.
4. Wide Application Range: Armored cables are widely used in power transmission and distribution, petroleum, chemical, metallurgy, shipbuilding, steel, and other fields, particularly in applications requiring strong mechanical protection and electromagnetic shielding.
III. Applications of Armored Cables
1. Industrial: Armored cables play a vital role in industrial production processes, particularly in harsh environments such as high intensity, high temperature, and high pressure, where their mechanical protection and electromagnetic shielding are particularly significant.
2. Urban Power Distribution: In urban power grids, armored cables are often used to protect transmission equipment to ensure the safety and stability of cable lines.
3. Oil and Gas Industry: Armored cables have become an indispensable component in the extraction and transportation of oil and gas due to their environmental adaptability and mechanical protection.
As a vital tool for power transmission and distribution, armored cables play a key role in various fields. Their unique structure provides excellent mechanical protection and electromagnetic shielding capabilities, making them suitable for complex and changing operating environments.
