The fiber optic cable blowing process is often preferred for installations due to its numerous advantages over the pulling method. It minimizes damage to the cable, reduces the risk of jams in the conduit, and is faster, saving on manpower an. The fiber optic cable blowing process is often preferred for installations due to its numerous advantages over the pulling method. It minimizes damage to the cable, reduces the risk of jams in the conduit, and is faster, saving on manpower and resources. However, using a pulling eye and a winch may be more suitable in certain situations.In fiber optic cable blowing, high-speed airflow is combined with a mechanical pushing force to produce the installation, known as blowing or jetting. This is the preferred method for pushing fiber optic cable through a pre-installed conduit. Several hundred meters of cable are pushed into the duct before compressed air is injected into the duct in. Friction ReductionAlways opt for a fiber optic cable with a low friction coefficient (between the cable outer surface and the duct inner wall). This will reduce the compressed air that pushes the cable through the conduit. Blowing lubricants such as oil can also reduce friction.Conduit SizeThe size of the conduit through which you're blowing the cable is important. Choose a conduit slightly larger than the fiber optic cable. The cable will be to be blown into place with ease and require less compressed air.Air PressureIn a fiber optic installation, the cable is typically laid in an underground conduit to protect the cable jacket. The blowing head is inserted into the conduit, and the fiber optic cable is fed through it. The air pressure from the compressor pushes the fiber optic cable through the conduit and into place.In comparison, if you're completing a pulling installation, a fiber optic cable is attached to a pulling head, with two seals that grip the cable tightly. The pulling head is inserted into the conduit, and the fiber optic cable is fed through it. The air pressure from the compressor pulls the fiber optic cable through the conduit and into place.
