Essentials for laying integrated cabling optical cable lines

Source: Internet
Author: User

Because some of the optical fiber cables used by communication networks are outdoors and some are indoors, new requirements on the optical fiber cables and their laying methods are put forward. The requirements for optical fiber capacity in these locations will continue to grow, but there are still rules to follow, and everything will depend on the needs of users. Pre-release of optical fiber cables in areas with potential demands will clearly result in a waste of resources and a backlog of funds.

At the same time, the route for this optical cable line of the communication network to enter the home may already be a finalized campus. It is difficult to re-build a large Communication Pipeline here. A large number of overhead laying will not only damage the beautiful landscape environment, the line is also insecure.

To solve these problems, products that have adapted to new laying methods have been released.

At present, there are three main ways to lay new optical cables at Home and Abroad: one is to use air-blown Installation Technology to blow micro-optical cables, fiber bundles, and optical fiber units into pre-laid micro-tubes;

The second is to slotted the Cement Pavement and place the micro-Optical Cable layout in the trough. The third is to use non-communication special pipes to install the optical cable.

Air-blown optical cable for Installation

The air blowing method is to use the high-speed air of compressed air to blow the microcable into the specified pipe. Air blow laying method has many advantages. In the high-speed air flow, the micro-cable is suspended in the pipeline, so the terrain changes and the bending of the pipeline have little impact on the optical cable. The sub-pipe and micro-cable can be used to increase the Assembly density of the optical fiber, save pipeline resources;

In the initial stage, you only need to deploy the appropriate capacity optical fiber cables. Later, you can expand the cables in stages based on the development requirements. In this way, you can batch blow the cables into the parent tube, saving the initial investment and avoiding a large number of idle optical fiber cables; branch cables can be added at any time according to business needs, and Y-type connectors can be used to reduce cable connections.

Optical cables used for air blowing installation are specially designed for distribution in the sub-pipe system and micro-pipes. It mainly includes sealed micro-optical cables and indoor and outdoor non-metallic dual-purpose micro-optical cables.

Sealed micro Optical Cable

It adopts fiber-optic loose stainless steel tube structure, in addition to the common characteristics of micro-optical fiber small outer diameter, light weight, but also has excellent high and low temperature performance and lateral pressure resistance. Stainless steel pipes are made of laser welded stainless steel tape. They seal the optical fiber and paste inside, and the accurate Residual Length Control Technology can ensure the use of optical fiber cables in complex environments.

Moreover, stainless steel pipes provide excellent moisture-proof performance, physical anti-rat, anti-ant performance, and acid resistance. They can provide the best protection for optical fiber cables, minimize damage to optical fiber cables, and use sealed micro optical fiber cables for Gas Blowing Installation.

Both indoor and outdoor non-metallic optical fiber cables

Most of the optical cable connection terminals and maintenance and repair locations are located in the street, residential area, building or communication equipment center. Fire safety problems exist in these areas and must meet special requirements: optical fiber cables are self-extinguishing and smoke-free. Therefore, both indoor and outdoor non-metallic optical fiber cables use low smoke, halogen-free, and Sheath Materials.

Road micro-trough Optical Cable

The road micro-trough optical fiber has similar structures as well as air-blown optical fiber cables. It is also a low-cost, easy-to-lay optical fiber cable with a small diameter and light weight. The laying method is flexible, simple, and efficient.

A micro-trough optical fiber cable based on the stainless steel loose technology developed in China. The number of fiber cores can reach 48 cores, the outer diameter is less than 6.0mm, and the cable weight is less than 60 kg/km.

The stainless steel pipe is not only a flexible Protective Tube for optical fiber, but also a sealing sleeve for optical fiber cables. It is used to completely isolate the moisture from the outside into the casing and is also a strengthening component of optical fiber cables, the tensile and flattening properties of optical fiber cables are ensured by selecting appropriate Steel Pipe Cross Sections. The stainless steel tube is filled with a touch-modified water resistance complex, ensuring that the optical fiber cable meets the water seepage performance requirements. The outside of the steel tube is a packed Polyethylene Jacket.

To lay a micro-trough optical cable on the road, you only need to open a Narrow Trough on the road surface. A layer of fine sand is laid at the bottom, and the buffer layers of foam rods and other materials are laid on the sand. Then, the optical fiber cables are buried in the trough, then lay a buffer layer on the optical cable, and fill in cement or drain Based on the road surface to restore the original road surface.

When you pass through the garden or lawn, first slot on the garden or lawn, and then spread the cable with PVC pipes on it, and then backfill and restore the surface. The pavement micro-trough Optical Cable solves the difficulties of FTTH construction and layout when crossing indoor and outdoor cement floors, garden lawns, and other terrain.

Optical Cable Used for drainage pipe laying

At present, China has developed and widely used a micro-cable for the rain pipe, which is based on the stainless steel loose technology and adopts a layer-twisted steel wire as the reinforcing component. The number of fiber cores can reach 48 cores, the outer diameter is less than 9.6mm, and the cable weight is less than 190 kg/km. Its structure 2 is shown in.

The stainless steel pipe in the optical fiber cable is not only the loose protection tube of the optical fiber, but also the sealing sleeve of the optical fiber cable. in the sewer environment, it can completely isolate the external water and moisture from entering the casing. The steel casing is easy to provide a large enough and stable length of the optical fiber, which is particularly important to ensure the service life and temperature attenuation of the optical fiber in the self-built optical fiber cable. The stainless steel tube is filled with a touch-modified water resistance complex to ensure that the optical fiber cable meets the water seepage performance requirements.

This type of optical fiber cable is used to deploy the underground drainage channels of the city. Place fixed metal parts on the manhole wall of the drainage pipe, install Stainless Steel Hanging fittings on the optical cable surface at both ends of the rainwater pipe, and then lock the hanging fittings on the fixed metal parts on the wall, so that the optical cable tensioning, the arc sag decreases and is self-bearing.

The cable layout is placed on the upper wall of the drainage pipe. In essence, it is carried out self-bearing hanging at the manhole at both ends of the pipe. Therefore, the cable structure is simple, light weight, small cable diameter, and high assembly density, it also has great tensile strength and softness.

In addition, optical fiber cables are deployed in drainage channels, which also require good moisture resistance and corrosion resistance, and have certain anti-rat and anti-ant capabilities.

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