The safest cable laying method --- Gas Blowing Technology

Air Blowing Principle

Gas Blowing cables/tubes are used to push micro-tube bundles or micro-cables to the pipe, while the air compressor sends powerful air streams to the sealing silo of the Gas Blowing Machine, this high-speed flow of air forms a drag force on the surface of the cable and pipe, prompting the cable and pipe to move forward. Therefore, the cable and tube bundle are pushed forward by the airflow in the pipeline, rather than pulled into the pipeline. The cable and pipe follow the ups and downs or the direction of the change in the pipeline and smoothly forward, because the top of the optical cable is not stressed, so it is opposite to the traditional traction cable, there is no stress at the end of the optical cable. After the cable is applied, the cable and pipe are flushed at the bottom of the pipe, helping to prolong the service life of the cable and the tensile strength of the cable and tube. Practice has proved that the air blowing method is currently one of the most effective and secure cable laying methods.

Air blow Method Introduction:

Relay air blow method:

This method works with multiple air blow machines. When the first air blow machine sends the cable to the next air blow point, the second air blow machine starts to work, the new high-pressure air flow enters the next section of the pipe through the intake chamber of the second machine and releases the high-pressure air flow in the upstream pipe from the vent. Theoretically, the optical fiber can be infinitely long. The disadvantage of this method is that there are many equipment required and a large one-time investment. At the same time, due to terrain changes, the location of the gas blow point is not easily determined.

Blow air from the middle to both ends:

When the cable length exceeds the air blow length of one air blow machine, we can choose to blow from the middle opening of the line to the second end. The one-time air blow length is about half of the total length. First, install the bulb in the vicinity of the cable tray. When one end of the micro-cable is laid, use the air blower to pour the remaining micro-cables on the cable tray into the bulb, take out the micro-Cable End of the inner ring, convert the direction of the air blower, and blow the micro-cables in the inverted tray into the pipe. If there is no problem with pipeline laying, the grip of a successful blow is relatively high.

Frog air blow method:

The frog air-blowing method is similar to the relay air-blowing method, but the next gas-Blowing Point is not the air-blowing machine but the inverted disk, use the High-Speed Air in the pipeline to collect all the optical cables of the upstream air blow points to the next air blow point, and then transfer the air blow machine to the next air blow point. And so on, until all the optical cables are fully blown. The advantage of this air blowing method is that a gas blowing machine can also be used to lay long-distance optical cables, but the work of inverted disks is heavy and the efficiency is low, at the same time, the actual air blow length of an air blow machine will be much greater than the actual line length.

The air blowing method Resize of P1010018small depends on the actual situation of the construction site. In actual construction, the second air blowing method is often used first, and the third air blowing method is then used.