10 Things to Consider When Buying adss fittings

ADSS (All-dielectric Self-supporting) optical fibre cable is atype of self-supporting aerial fiber optic cable designed for aerial installation and deployment and is suitable for various outdoor applications. This thorough overview will cover the definition, structure, benefits, and applications of ADSS fiber cables.

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What is an ADSS Fiber Optic Cable?

All-dielectric self-supporting optic cable is another name for ADSS fiber optic cable. There are two modes in optical fiber; single-mode and multimode fiber.

The self-supporting type indicates that the optic cable’s reinforcing member can withstand its weight and external load, has high mechanical strength, and can withstand the strong electric environment’s impact.

A comprehensive transmission circuit infrastructure with high-reliability performance is provided by the ADSS fiber optic cable system, which includes cables, suspension, dead-end, and termination enclosures.

What are the benefits of an ADSS cable?

In most cases, ADSS cable will provide an efficient and optimal solution for aerial cabling or outside plant (OSP) deployments.However, the most remarkable advantages of optical fibre are:

• Its dependability and low fiber cable price.
• A fiber optic cable is strong enough to allow installation lengths of up to 700 meters between support towers.
• ADSS cable is lightweight and small in diameter to reduce the load on tower structures caused by cable weight, wind, and ice.
• To maintain low optical loss throughout the cable’s life, the internal glass optical fibres are supported with no strain in the cable’s design.
• The cable is jacketed to protect the fibers from moisture.
• The jacket also shields the polymer strength elements from the effects of UV light from the sun.
• Circuits up to 100 km long are possible without repeaters using single-mode fibre cables and light wavelengths of or nanometers.
• A single cable can transport up to 144 fibers.

Structures of ADSS Cable

ADSS cable structures are classified into two types of optical fibre:

1. Central Tube Design

The fiber network in this design is placed in a PBT loose tube that is filled with water-blocking material. Then, depending on the desired tensile strength, they are wrapped in aramid yarn and extruded with a PE (110KV electric field strength) or AT (100KV electric field strength) sheath. Of the two fibre cable types, thisstructure has a small diameter and is light in weight, but it has limited lengths.

Central Tube Design

2. Stranded Structure Design

In a stranded structure design, the water-blocking grease and inner optical fibers are added to the loose fiber tube, and different loose tubes are coiled around the central reinforcement (usually FRP). The rest of the fiber optic wire is essentially the same as the central tube structure.

Between both fiber optic cable types, the lattercan produce a longer fibre length. Despite its large diameter and weight, an ADSS fiber optic cable with this structure is better suited for long-distance applications.

Stranded Structure Design

ADSS Cable Installation

ADSS fiber optic cable or types of OFC cable is a self-supporting fibre network cable that does not require any support when moving power from one location to another. These cables, while self-supporting, are typically installed on utility poles and power lines with the help of a fiber cable connector. Among ADSS fibre optic installation accessories are:

• Tension assemblies (clips),
• Optical distribution frames (ODFs)/optical termination boxes (OTBs),
• Suspension assemblies (clips),
• Outdoor junction boxes (closures),
• Optical termination boxes,
• any other

ADSS fibre anchoring clamps can be conveniently utilised during fiber optic cable installation as individual cable dead-end clamps at end poles or as an intermediate (double dead-end) clamp.

Applications of ADSS cables

ADSS cable was originally derived from military lightweight, rugged deployable (LRD) fiber wires. The advantages of fibre optic cable are many.

ADSS fibre optic cable is now used in aerial installations for short-span, typically on roadside power distribution poles, thanks to continuous improvements in technology such as fiber cable internet. Because it is non-metallic, the ADSS cable is ideal for applications near high-voltage power distribution lines, for which it has become a standard.

Circuits up to 100 km long are possible without repeaters using single-mode fibre and light wavelengths of nm or nm. ADSS OFC cable was typically used in 48 and 96 cores.

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A typical ADSS fibre optic network cabling scenario.

Conclusion

ADSS fibre cables provide an optimal solution for a wider range of fiber counts and span lengths, therefore increasing the application of optic fibre in aerial cabling system designers in telecommunications, private network groups, etc.

What you should know about ADSS Cable

ADSS cables. All-Dielectric Self Supporting cables. The All-Dielectric Self Supporting (ADSS) cable is a completely non-metallic structure in which the tensile load bearing elements are integral within the circular design of the cable – usually in the form of aramid yarns or stranded glass reinfroced plastic rods.

The structure of ADSS Cable

• Typically a loose tube cable design
• Designs are application specific

The Applications of the ADSS Cable 
– Cable supports itself

• No external support or messenger wire – Uses new and existing right away
• Distribution or Transmission Lines – Designed to specific weather conditions
• NESC Light, Medium or Heavy Load

The Advantages about the ADSS Cable

• All-dielectric construction
• Eliminates bonding & grounding
• Live power line installation
• Lower costs

Key Specifications for  ADSS Cable

• Maximum span distance between poles, Longer spans require more cable strength
• Installation sag: typically 1.5%. Less sag requires stronger cables
• Line voltage: Distribution: Use HDPE jacket span / Transmission: Evaluate line voltage/spacing compatibility, HDPE or track resistant jacket
• Maximum weather loading (wind, ice, safety factors, etc): Higher winds or thicker ice requires stronger cables / Can use location to determine loading per NESC.
• Fiber count: Higher counts (>72) increase the cable diameter: Larger cable diameters have more weight & carry more weather loading
• No of fibers per tube
• Maximum sag restrictions: Any clearance considerations / Restrictions may require a stronger cable

Key Information Needed for ADSS Cable Quotation

• Fiber Count
• Maximum Span Distance
• Weather Loading: NESC Light, Medium, Heavy or Other
• Line Voltage (kV) if transmission lines are used.
  – System voltage worksheet required for > 69kV
  – Needed to consider dry band arcing and corona resistance

Key Information Needed: Assumptions can be made if not specified

• Jacket Configuration (1 or 2): 1 likely will be assumed
• Initial Installation Sag? 1.5% is typical

Additional information to consider

• Number of Fibers per Tube: 12f/t recommended for distribution spans up to 144 fibers, 4f/t recommended > 144 fibers
• Buffer tube preference for closure routing: Polypropylene < 144, PBT > 144
• Elevation changes?
• Vertical or horizontal sag limitations/clearance
• Pollution level – important in high voltage applications
• Structure type & load capability

Microudct Connector

Straight Microduct Connector, Reducing Microduct Connector, End-stop Microduct Connector, Water/Gas Block Connector, Water/Gas Block Connector for Micro duct End, Micoduct Lock Clips

Loose Tube Type Air Blown Cable

Air lowing fiber, max. 288cores, for micro duct application

Central Tube Type Mini Air Blown Cable

Air lowing fiber, max. 24 cores, 4.0/4.4mm outer diameter, for micro duct application

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