Hunan Blownfiber Technology Co.,Ltd

Introduction to Microducts for Air Blown Fiber (ABF) Deployment
来源: | Author:BF-001 | Published time: 2016-08-03 | 194 次浏览 | 分享到:

In accordance with Telcordia GR-3155 guidelines, microducts represent a breakthrough in modern fiber optic infrastructure. These compact conduits, characterized by their slender diameters and flexible construction, serve as the conduit of choice for accommodating optical cables with relatively low pulling tension thresholds. Designed to seamlessly integrate into existing construction blueprints, both in riser and plenum settings, microducts facilitate efficient cable installation through innovative techniques like cable blowing.


One of the defining features of microducts is their ability to provide unobstructed passages, reducing friction and maintaining cleanliness during cable installation. They enable safe cable deployment either by employing pull lines or strings with minimal exertion, requiring less than 50 lbs of force. Alternatively, microducts support cutting-edge cable blowing methods, allowing for the rapid deployment of optical cables at speeds ranging from 100 to 200 feet per minute.


Microducts find their niche in accommodating microduct fiber optic cables, which come in compact sizes ranging from 3 to 16 mm. These microducts are often bundled together within larger protective ducts, a process that can be executed through various means such as jetting. Factory pre-installation of microduct bundles is another viable method. A notable advantage of microducts lies in their exceptional flexibility in network branching. By creating window cuts in protective ducts and connecting microducts through push/pull connectors, network operators can swiftly establish branching microduct pathways. Subsequent installation of microduct cables can be achieved seamlessly, eliminating the need for cumbersome splicing procedures.


Distinct Advantages over Traditional Cabling,BlownFiber's Air Blown Fiber have the following advantages :

  1. Effortless Network Expansion: Microducts grant the flexibility to establish branches anywhere within the network with ease and convenience, allowing for on-demand network growth.

  2. Cost-Efficiency: With low initial costs, microduct installations provide a budget-friendly alternative to traditional cabling methods.

  3. Occupied Duct Compatibility: Installing microduct routes within occupied ducts is hassle-free, minimizing disruption to existing infrastructure.

  4. Streamlined Replacement: The ability to replace outdated cables within the network becomes a straightforward endeavor, ensuring future-proofing capabilities.

  5. Seamless Migration: Microducts open up the possibility of transitioning from copper balanced cables to advanced fiber optic cables, facilitating technological evolution while preserving infrastructure integrity.


Incorporating microducts into fiber optic network designs marks a significant advancement, enabling efficient, cost-effective, and flexible solutions for modern communication needs.