Armored cable is made of different material conductors in a metal sleeve with insulating material, which is processed into a solid combination that can be bent.
Armored cable is generally a fixed laying power cable, commonly known as set in one place and does not move, power line transmission of electrical energy.
The armored cable includes an armored thermocouple, armored RTD, armored heater, and armored lead, mainly used for temperature measurement, signal transmission, and special heating in the chemical industry, metallurgy, machinery manufacturing, power generation, and scientific test, etc.
The largest amount is an armored thermocouple.
The steel armored cable can bear greater mechanical force, and it is used more and more widely in our life with the development of society.
During the production of steel wire armored cable, the manufacturer should strictly enforce the relevant national standards and international standards to ensure that the armored cable has good stability of structure and performance when used.
This article mainly introduces 5 kinds of process precautions of steel wire armored cable as follows.
Control cable steel wire armor quality should be consistent with GB / T 3082-2008; low voltage power cable steel armor quality can refer to GB / T 3082-2008 requirements, but may not have to follow this standard assessment.
The power cable wire's nominal diameter should meet the requirements, the minimum diameter of the wire is not less than 95% of the nominal diameter; the control cable wire diameter and deviation should be consistent.
Using the method of regression, for different specifications of the wire, needs to adjust the pre-deformer arc height and arc width according to process requirements, so that makes the deformation of steel wire matches the spiral of cable diameter and pitch so that the armored wire is not easy to lose.
For the steel wire armored cable, there is a certain amount of residual torque in the cable and wire armor process. To prevent radial rotation of the armored wire cable during laying.
The residual torque must be effectively released after the steel wire is armored. For the radial process of the cable, improper handling will cause a more severe quality of the accident, ranging from armored layer deformation, damage to the outer jacket, or even the cable core being directly pulled off.
To ensure that the double-layer steel wire armored special cables (such as fiber optic cable, photoelectric composite cable, cable, and other cable exploration), in the course of the use of structural stability, the need to accurately design cable double steel wire armor process parameters, so that both inside and outside the steel armor.
The torque on the cable armoring is equal and the direction is opposite, that is, the torque of the wire armored cable is balanced to ensure the stability of the armoring of the cable structure.
The armor is divided into steel belt armor (22, 23), fine steel wire armor (32, 33), and coarse steel wire armor (42, 43).
Next, we will look at the specific.
Steel ribbon armored cable models: VV22, VVP22, ZRVV22, NH-VV2.
Control cable steel belt armored cable model: KVV22, KVVP2, KVVP22, ZR-KVV22.
Steel wire armored power cable model: VV32, YJV32, ZR-VV32.
Steel wire armored control cable model: KVV32, KVVP32.
Installed communication cable models: HYA53, HYAT53, HYA23, HYV22, HYA22 (rat-proof, buried).
An armored cable mechanical protection layer can be added to any structure of the cable to increase the mechanical strength of the cable and improve erosion resistance. It is a telephone cable designed for areas that are vulnerable to mechanical damage and highly susceptible to erosion.
And it can also be laid in any way, and it is more suitable for direct burial in rocky areas.
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