{"id":3671,"date":"2017-02-12T08:58:58","date_gmt":"2017-02-12T08:58:58","guid":{"rendered":"https:\/\/www.tarluz.com\/?p=3671"},"modified":"2017-02-12T09:08:43","modified_gmt":"2017-02-12T09:08:43","slug":"introduction-microducts-air-blown-fiber-abf","status":"publish","type":"post","link":"https:\/\/www.tarluz.com\/ar\/structured-cabling\/introduction-microducts-air-blown-fiber-abf\/","title":{"rendered":"Introduction to Microducts for Air Blown Fiber ABF"},"content":{"rendered":"

Based on Telcordir GR-3155. Microducts are typically small-diameter, flexible, or semi-flexible ducts designed to provide clean, continuous, low-friction paths for installing optical cables that have relatively low pulling tension limits. The microducts are compatible with existing construction designs and building configurations for both riser- and plenum-rated applications, including cable blowing apparatus.\"\"<\/p>\n

Allow cables to be safely deployed through pull lines or strings using less than 50 lbs of force, and through cable blowing techniques at typical deployment speeds of 100-200 feet per minute.<\/p>\n

Microducts are small ducts for the installation of small microduct fibre optic cables. They have a size ranging from typically 3 to 16 mm and are installed as bundles in larger ducts.<\/p>\n

GR-3155 states that the basic types of duct are smoothwall, corrugated, and ribbed. The selection of a particular duct design is dependent on those characteristics that are important to the end-user. The need for a specific characteristic or combination of characteristics such as pulling strength, flexibility, or the lowest coefficient of friction will dictate the type of duct required.<\/p>\n

With microduct cabling, bundles of small microducts are installed in larger protective ducts [1] [2]. This can be done by jetting for example. Bundles of microducts can also be factory pre-installed. The microducts can be branched very easily in the network. At any place of choice, a window cut is made in the protective duct and the microduct of choice is cut. This microduct is then connected, using a simple push\/pull connector, to a microduct that branches to the desired location. After all connections are made, an individual microduct path has been created in the network. A microduct cable can then be jetted through the microduct, without the need to make a splice.<\/p>\n

Advantages over traditional cabling<\/strong><\/p>\n