Armor Galvanized Steel Wire For Optical Cable
Armor Galvanized Steel Wire For Optical Cable
Armor Galvanized Steel Wire For Optical Cable

Customized High-Quality Profiled Metal Armor Galvanized Steel Wire For Optical Cable

The steel wire used for optical cable armor is usually low-carbon steel wire with a hot-dip galvanized surface layer. The grades of low-carbon steel wire are generally Q195 and Q235. The chemical composition (mass fraction) of Q235 steel is shown in Table 3.5.4-1.

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Armoring Material Steel wire winding is used to protect the cable from damage and damage by external mechanical forces. It can also prevent rats and termites from biting, so as not to cause power transmission problems through the armor. The bending radius of the armor is large, and the armor layer can be grounded to protect the cable. The zinc coating offers excellent protection against rust and corrosion, ensuring longevity and reliability even in harsh environments. At the same time, galvanized armor steel wire has high tensile strength. It designed to withstand heavy loads and high stress. Which extend the service life of optical cables.

Feature

  1. Superior Corrosion Resistance;
  2. galvanized steel wire has High Tensile Strength;
  3. Good Flexibility and Workability;
  4. Durable Coating, the galvanized layer is applied through advanced processes to ensure a strong bond with the steel. Which providing long-lasting protection against environmental factors.

Application

  1. Cable reinforcement;
  2. Structural support;
  3. Steel Cable;
  4. Galvanized steel wire for armouring cable is suitable for preventing damage to communication , self-control or power cable or undersea and underground cable.
  5. Fencing;
  6. Construction;

Two Types Steel Wire Detail

Performance and Technical Indicators
   Steel wires are divided into two types according to the type of coating: galvanized layer and galvanized -5% aluminum mixed rare earth alloy coating.
The mechanical and process properties of steel wires are shown in Tables 3.5.4-3 and 3.5.4-4.
Table 3.5.4-3
Nominal diameter
mm		 Tensile strength
MPa		 Elongation after fracture Twisted Winding
≥
%		 Gauge length
mm		 ≥
number of times/360*		 Gauge length
mm		 The ratio of core rod diameter to steel wire diameter Number of winding coils
>0.8-1.2 345-49 10 250 24 150 —— ——
21.2=16 22 1 8
>1.6=2.5 20
>2.5=3.2 19
>3.2-4.2 15
54.2-6.0 10
>6.0-8.0 9 7

Table 3.5.4-4
Nominal diameter
mm		 Team I Team II
Coating weight
not less than
g/m²		 Wrapping test Coating weight not less than
g/m²		 Wrapping test
The diameter of the core rod is a multiple of the diameter of the steel wire Number of winding coils The diameter of the core rod is a multiple of the diameter of the steel wire Number of winding coils
0.90 112 2 6 150 2 6
1.2 150 200
1.6 150 4 220 4
2.0 190 240

 

Nominal diameter
mm		 Team I Team II
Coating weight
not less than
g/m²		 Wrapping test Coating weight not less than
g/m²		 Wrapping test
The diameter of the core rod is a multiple of the diameter of the steel wire Number of winding coils The diameter of the core rod is a multiple of the diameter of the steel wire Number of winding coils
2.5 210 260
3.2 240 275
4.0 270 5 290 5
5.0 270 290
6.0 270 300
7.0 280 300
8.0 280 300
 Low carbon armored steel wire for optical cables shall be inspected according to the “Hot dip galvanized or hot-dip galvanized -5% aluminum mixed rare earth alloy coated low carbon steel wire for armored cables” (GB/T3082-2008) or the technical agreement between the supply and demand parties. The main factory inspection items include: coating weight, surface quality, diameter deviation, ellipticity, tensile strength, elastic modulus, elongation, straightness, winding (toughness test), torsion, and coating adhesion.
The adhesion test of the coating shall be carried out in accordance with the “Test Method for Wrapping of Metal Materials and Wires” (GB/T2976-2004). The winding speed of the sample shall not exceed 15/min, and the coating shall not crack or peel off to the extent that it can be wiped off with bare hands.

Specification

Performance and Purpose
 Low carbon armored steel wire used for optical cables has a high elongation, good toughness, and good winding ability.
Table 3.5.4-5
Nominal diameter，mm Allowable deviation，mm
>0.8～1.2 ±0.04
>1.2～1.6 ±0.05
>1.6～2.5
>2.5～3.2 ±0.08
>3.2～4.2 ±0.10
>4.2～6.0 ±0.13
>6.0～8.0 ±0.15
The surface of hot-dip galvanized steel wire is very rough and has good adhesion strength with PE and other coating materials.
Hot dip galvanized low-carbon steel wire is used as armor material in communication fiber optic cables.

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