JZD Wire & Cable Factory
More Than 20 Years Experience
More Than 20 Years Experience
Author: Joey 
November 18,2021
What is an armored cable and what is a non-armored cable? The following editor will give you a detailed introduction to armored cables and non-armored cables from a more professional perspective of a custom armored cable manufacturer in China, as well as the differences between the two.
Armored cables are made of conductors of different materials enclosed in metal sleeves with insulating materials and processed into a solid, flexible combination. Armored cables include armored thermocouples, armored thermal resistances, armored heaters and armored leads. They are mainly used for temperature measurement, signal transmission and special heating in chemical industry, metallurgy, machinery manufacturing, power generation and scientific experiments, etc., with the largest amount Is a sheathed thermocouple and many custom armored cable manufacturers in China insist on providing better conductors and better amored materials so that can sell their products to more countries, cause they have more high requirement on this.
Non-armoured cables refer to cables without steel armor protection. The insulation performance of the cable is very important to ensure the safe operation of the power supply system. Therefore, it is very necessary to detect the insulation performance of the cable and find the potential defects of the cable as early as possible. Most of the current researches are aimed at armored cables, and few people have studied the insulation performance testing methods of unarmored cables. The insulation detection methods used mainly include partial discharge method, optical fiber temperature measurement method, leakage current method, etc.
Armored cables are represented by numbers. For example, YJV22, YJV is XLPE insulated and PVC sheathed power cable, 22 means steel tape armored.
The armor is divided into steel tape armored (22, 23), thin steel wire armored (32, 33), thick steel wire armored (42, 43) steel tape armored cable models are VV22, VVP22, ZRVV22, NH-VV2;
Control cable steel tape armored cable, models are KVV22, KVVP2, KVVP22, ZR-KVV22
Steel wire armored power cables, models are VV32, YJV32, ZR-VV32
Steel wire armored control cable cable models are KVV32 KVVP32
Armored communication cable model: HYA53, HYAT53, HYA23, HYV22, HYA22 (rodent-proof, buried)
Of course, when you contact with your supplier, maybe there are some amored cable manufacturer will have different cable models expression method, if you feel confused, then you just need contact her more deeply.
1. The structure of the two is different. Compared with the unarmored cable, the armored cable has an extra layer of metal reinforcement on the surface.
2. The scope of application of the two is different. The armored cable has a reinforcement layer on the surface, which is suitable for use when buried in the ground, while the non-armored cable has no reinforcement layer on the surface, so it is generally not applicable to buried underground, but other In general, non-armoured cables are used.
3. The purpose of the two is different. Armored cables are used when they are buried in the ground. In direct burial and laying, armored cables are required. Non-armoured cables cannot be used when buried. In other cases, non-armoured cables are used.
1. The mechanical protection layer of the armored cable can be added to any structure of the cable to increase the mechanical strength of the cable and improve the corrosion resistance. Designed for areas that are prone to mechanical damage and are highly susceptible to erosion. It can be laid in any way, in which steel tape armored cables are generally laid straight and can withstand external forces in the horizontal direction. Steel wire armored cables are mostly used in vertical installations such as shafts.
2. The cable has an armored layer, which can also enhance mechanical protection such as tensile and compressive resistance, and prolong the service life.
3. The armored cable has a certain resistance to external forces, and can also prevent rat bites, and will not cause power transmission problems through the armor. The bending radius of the armor should be large, and the armor layer can be directly grounded to protect the cable.
4. The armored cable mechanical protection layer can be added to any structure of the cable to increase the mechanical strength of the cable and improve the corrosion resistance. It is a wire and cable designed for areas that are prone to mechanical damage and highly susceptible to erosion. It can be laid in any way, and is more suitable for direct burial laying in rocky areas.
5. Armored cables are generally fixedly laid power cables. Generally speaking, they are fixed in one place and basically do not move. The power line transmits electric energy.
In addition to the above, the purpose of adding the armor layer to the cable can also enhance mechanical protection such as tensile strength and compressive strength to extend the service life.
The armor has a certain degree of resistance to external forces, and it can also prevent rats from biting, and will not cause power transmission problems through the armor. The bending radius of the armor should be large, and the armor layer can be grounded to protect the cable.
The failure rate of armored cables is relatively high, while the failure rate of rubber sheathed cables is relatively low. For armored cables, the reasons for cable short-circuit failure include:
(1) During the cable connection, the middle-end connection process of the cable does not meet the quality requirements, and the cable connection process requirements must be observed. In particular, pay attention to the insulation of the middle-end end, and do not allow moisture to enter the key connection to avoid affecting its insulation. .
(2) The cable armored steel tape is cracked, the overlap is not good, and the lead package cracks into the moisture, especially the weak link at the end of the cable, which will damage the insulation and cause a short circuit. Note that the bending radius of the cable should not be too small. Less than 20 times the outer diameter of the cable.
The production of armored cables in the world is mainly concentrated in several more developed countries, such as the United States, the United Kingdom, Japan, Germany, and Russia. In addition, Chinese manufacturers began to expand the world's armored cable market share in 2010. Buyers from many countries are more and more inclined to come to China to purchase. With the price advantage and the recent improvement in manufacturing precision and quality control capabilities, the prospects for armored cables of Chinese manufacturers are widely optimistic,such as the JZD Wire&Cable, this is a manufacturer with 20 years production and development experiences and belong to Top 3 factory and exported their armoured cable to 30 countries and expanding it's solar cable and THHN cable to more countries and regions.The recent rise of Southeast Asia There are no manufacturers in the region, but as long as there are industries such as chemical industry, metallurgy, machinery manufacturing, power generation, etc., where there is temperature measurement, armored cables are needed.
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