What is the difference between armored and unarmored cables? What are the advantages of armored cables?

2025-09-10 Leave a message

Power cables are divided into armored and unarmored types. We often simply define armored and unarmored cables by the presence or absence of a sheath. However, their uses and functions are quite different. So, what exactly is the difference between the two? Below, we'll compare the characteristics and differences between the two types through various aspects.


What is the difference between armored and unarmored cables?


Armored cables differ from unarmored cables in that they have an additional metal reinforcement layer. Common armoring methods include steel tape armor and steel wire armor, with steel wire armor further divided into fine wire armor and coarse wire armor.


What are the advantages of armored cables?


1. Armored cables have a mechanical protective layer that can be added to any cable structure to increase mechanical strength and improve corrosion resistance. They are designed for use in areas susceptible to mechanical damage and corrosion. Any installation method is acceptable. Steel-belt armored cables are generally laid horizontally to withstand horizontal forces, while steel-wire armored cables are often used in locations requiring vertical installation, such as shafts.


2. Adding armor to cables also enhances mechanical protection, such as tensile and compressive strength, and prolongs their service life.


3. Armored cables offer a certain degree of resistance to external forces and are also protected from rats, preventing them from penetrating the armor and causing power transmission problems. The armor should have a large bend radius, and the armor layer can be directly grounded to protect the cable.


Armored Cable Model Classification


Armored control cable models include KVV22, KVVP22, KYJV22, KVV32, and KYJV32.


Armored power cable models include YJV22, YJV32, VV22, and VV32.


Armored communication cable models include HYA53, HYAT53, HYA23, HYV22, and HYA22 (rodent-proof, buried).


The above describes the differences between armored and unarmored cables. I believe everyone now understands the differences and advantages of each. The choice of armored or unarmored cable depends on the installation location. In some locations, armored cable is not suitable for unarmored cable; in other locations, unarmored cable is unnecessary, and otherwise, armored cable would be a waste of money. The decision depends on the specific environment. We can make a choice based on our actual needs.