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Armored Fiber Optic Cable: A Comprehensive Guide

# Armored Fiber Optic Cable: A Comprehensive Guide

## Introduction to Armored Fiber Optic Cable

Armored fiber optic cable is a specialized type of fiber optic cable designed with additional protective layers to withstand harsh environmental conditions and physical stresses. Unlike standard fiber optic cables, armored variants incorporate metal or non-metallic armor to provide extra durability and protection against crushing, rodent damage, and other potential hazards.

## Types of Armored Fiber Optic Cables

### 1. Interlocking Armored Cable

This type features a corrugated metal tape wrapped around the cable core in an interlocking pattern. The design provides excellent crush resistance while maintaining flexibility for installation.

### 2. Double Armored Cable

For extreme environments, double armored cables offer two layers of protection – typically an inner steel tape and an outer layer of galvanized steel wires.

### 3. Non-Metallic Armored Cable

Using materials like Kevlar or fiberglass, these cables provide protection in environments where metal armor might be unsuitable, such as in areas with electromagnetic interference concerns.

## Key Components of Armored Fiber Optic Cable

The structure of armored fiber optic cable typically includes:

• Optical fibers (single-mode or multi-mode)
• Buffer coating to protect individual fibers

Keyword: armored fiber optic cable

• Strength members (usually aramid yarn)
• Inner jacket for additional protection
• Armor layer (metal or non-metallic)
• Outer jacket for environmental protection

## Advantages of Armored Fiber Optic Cables

Enhanced Durability

The armor provides superior protection against physical damage from crushing, impact, and rodent bites.

Longer Lifespan

With better protection, armored cables typically last longer in challenging environments compared to standard cables.

Versatile Installation Options

Armored cables can be installed in more locations, including direct burial, aerial, and conduit installations.

Reduced Maintenance

The robust construction minimizes the need for repairs and maintenance over the cable’s lifetime.

## Applications of Armored Fiber Optic Cables

Armored fiber optic cables find use in various demanding environments:

• Industrial facilities with heavy machinery
• Military and defense applications
• Outdoor installations subject to environmental stresses
• Data centers requiring extra protection
• Underground and direct burial applications
• Areas with high rodent activity

## Installation Considerations

Bending Radius

While armored, these cables still require careful handling to maintain the minimum bending radius specified by the manufacturer.

Grounding Requirements

Metallic armored cables must be properly grounded to prevent electrical hazards and interference.

Termination Methods

Special techniques may be required for terminating armored cables, particularly when dealing with the armor layer.

Environmental Factors

Consider temperature extremes, moisture, and chemical exposure when selecting the appropriate armored cable type.

## Choosing the Right Armored Fiber Optic Cable

When selecting an armored fiber optic cable, consider these factors:

1. Environmental conditions (indoor, outdoor, underground, etc.)
2. Required bandwidth and transmission distance
3. Potential physical threats (crushing, rodents, etc.)
4. Installation method (pulling tension, bending requirements)