Double Steel Wire Armored Fiber Optic Cable is a heavy-duty loose tube fiber optic cable designed for harsh environments such as river crossings, lake installations, underground backbone networks, and coastal communication systems. It features an aluminum moisture barrier (APL) and double layers of steel wire armor, providing extremely high mechanical strength and excellent water resistance. The cable supports high fiber counts, making it suitable for large-capacity backbone communication projects.
This cable is a reinforced fiber optic cable with APL moisture protection + double steel wire armor structure, designed for environments that require both high mechanical protection and long-term reliability. It can be customized for medium to very high fiber counts, making it ideal for backbone and large-scale communication networks.
Estructura y diseño
double steel wire armored fiber cable
Key Design Features:
Aluminum moisture barrier (APL) for excellent water resistance
Double steel wire armor for maximum mechanical protection
High tensile strength for long-distance installation
Excellent crush resistance for underground and underwater environments
Supports medium to very high fiber counts (customizable)
Suitable for backbone communication systems
Aplicaciones
Double Steel Wire Armored Fiber Optic Cable is widely used in:
River crossing communication projects
Lake and reservoir fiber optic networks
Underground backbone communication systems
Coastal and marine communication infrastructure
Industrial park backbone networks
High-risk direct burial environments
Long-distance telecom trunk lines
Smart city and metro network infrastructure
Ventajas
Extremely High Mechanical Strength
Double steel wire armor provides superior protection against crushing, pulling, and external impact.
Excellent Water Resistance
APL layer effectively blocks moisture penetration and ensures long-term stability.
Gran capacidad de fibra
Supports large core counts for backbone and metro network applications.
Suitable for Harsh Environments
Ideal for underwater, rocky soil, and high-pressure underground installations.
Long Service Life
Designed for durable and stable operation in demanding environments.
Preguntas frecuentes
1. What is the difference between single SWA and double steel wire armored cable?
Single SWA has one layer of steel wire armor, while this cable has two layers, providing significantly higher mechanical strength and protection.
2. Can this cable be used underwater?
Yes. It is suitable for river, lake, and reservoir crossings where high mechanical protection is required.
3. What is the maximum fiber count?
The cable can be customized from low fiber counts up to high-capacity designs such as 144, 288, or even higher depending on project requirements.
4. What fiber type is used?
Typically G.652.D single-mode fiber is used, with optional customization available.
5. Is this cable suitable for direct burial?
Yes. It is designed for direct burial in harsh soil conditions and high mechanical stress environments.
6. How does APL improve performance?
APL (Aluminum Polyethylene Laminate) acts as a moisture barrier, preventing water ingress and improving long-term reliability.
Especificación
4 núcleos
12 núcleos
24 núcleos
48 núcleos
96 núcleos
144 núcleos
Recuento de fibras
4
12
24
48
96
144
Tipo de fibra
G.652D / G.657A1 / G.657A2 (monomodo)
Estructura del cable
Tubos sueltos trenzados por capas + Bloqueo de agua + Armadura de alambre de acero
Blindaje
Armadura de alambre de acero galvanizado (SWA)
Material de la cubierta exterior
HDPE o LSZH
Color exterior de la chaqueta
Negro
Miembro de Fuerza Central
FRP o alambre de acero
Material del tubo suelto
PBT con gel bloqueador de agua
Diámetro exterior (mm)
9.5
10.0
10.5
11.5
12.5
13.5
Peso aproximado (kg/km)
120
130
140
160
180
200
Resistencia a la tracción
Corto plazo ≥ 3000 N; Largo plazo ≥ 1000 N
Resistencia al aplastamiento
Corto plazo ≥ 3000 N/100mm; Largo plazo ≥ 1000 N/100mm.
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