What is armored cable
In the underground pipe gallery of the city, various cables are like the "nerve veins" of the city, bearing the heavy responsibility of transmitting electricity and signals. Among them, there is a kind of cable, like a warrior in armor, silently guarding the stability and safety of power transmission, which is the armored cable.
The name of the armored cable shows its specialness. Simply put, it is a cable composed of conductor, insulating material and metal sheath. This metal sheath is like its "armor", which is what we call the armor layer. Common armor layer materials include steel belt, steel wire, etc. Different materials give armored cables different performance characteristics, so that they can adapt to various complex application scenarios.
The reason why armored cables can "show their prowess" in various harsh environments is inseparable from their unique structural design. From the inside to the outside, armored cables are mainly composed of conductors, insulation layers, armor layers and outer sheaths.
Armored cables are usually made of highly conductive copper or aluminum materials to ensure that electric energy can be transmitted efficiently and stably. In some occasions with extremely high requirements for power transmission, such as large substations and power plants, high-quality copper conductor armored cables are the first choice, because copper has excellent conductivity, which can greatly reduce resistance and reduce the loss of electric energy during transmission, just like a wide and flat highway, allowing the current to flow unimpeded.
The insulation layer is like a layer of "protective clothing" for the conductor, tightly wrapped around the conductor, isolating the conductor from the external environment, preventing current leakage and short-circuit accidents, and ensuring the safety of power transmission. Common insulating materials include polyethylene (PE), cross-linked polyethylene (XLPE) and polyvinyl chloride (PVC), etc., which have good insulation properties and aging resistance. The armor layer is usually woven from steel strips or steel wires, just like a layer of solid armor for the cable. This layer of armor greatly enhances the mechanical strength of the cable, enabling it to withstand greater tension, pressure and extrusion, and effectively resist damage from external physical factors. When the cable needs to pass through rocky areas, tunnels or cable trenches, the armor layer can play a key role in protecting the internal structure of the cable from damage, just like a soldier wearing armor on the battlefield to resist enemy attacks.
Armored cables are widely used in many fields due to their excellent performance, providing reliable guarantee for the stable operation of various industries. First of all, the mechanical strength is high. The steel belt or steel wire armor layer of the armored cable can withstand the pressure of soil and rock, external force pulling during construction, etc., effectively preventing the cable from being crushed or broken. Ensure the long-term stable operation of the cable and ensure the safety and reliability of power transmission. Strong anti-interference ability is an indispensable advantage of armored cables in modern communications and power transmission. In places that are extremely sensitive to electromagnetic interference, such as medical equipment in hospitals and data centers of financial institutions, the anti-interference ability of armored cables is particularly important. It can ensure the normal operation of equipment and the safe transmission of data, and avoid medical accidents or data loss caused by interference. The service life of armored cables is long. Due to their high-strength mechanical protection, good protection performance and anti-interference ability, armored cables can operate stably for a long time under normal use conditions, reducing the frequency of replacement and maintenance.
