What are the four categories of overhead optical cable fittings?


Design and application characteristics of overhead optical cable fittings

For the overhead optical cable used in the electric power and telecommunications fields, research and analyze the hardware that directly contacts the optical cable and realizes the fixation. According to the progress of research and development, the design principles and application characteristics of different types of aerial optical cables are introduced, and the main types and technical requirements of self-supporting power overhead optical cable fittings, self-supporting non-power aerial optical cable fittings and FTTH outdoor aerial optical cable fittings are emphatically analyzed.


Aerial optical cable fittings serve for overhead optical cables. Only when the design principles, application characteristics and performance of optical cables of the fittings match each other, can the optical cable be securely fixed, and at the same time protect the optical fiber, and is conducive to installation and maintenance.


Aerial optical cable fittings

Various new optical cables, such as submarine optical cables and aerial optical cables, have become the focus of application in the industry. The technical indicators and key properties of these optical cables are high, such as compression resistance, glass properties, construction site environment, etc. Optical cables are used for transmission, and the devices that connect with optical cables and realize application conversion generally use metal parts (referred to as hardware). Hardware is very important and critical. It can only be used if it matches the performance of both light and electricity. At the same time, it can better fix the optical cable, protect the optical fiber, and realize the application.


In the field of power applications, fittings are the general term for the shaped metal parts used by the power sector to fix, connect, connect, and protect wires (mainly wires and ground wires) and wires, wires and equipment or materials. Hardware is generally produced from non-ferrous metals such as steel, aluminum, aluminum alloy, and copper.

fiber optic cable

With the application of optical cables in power lines more and more widely, non-metallic products such as anti-vibration whips and optical cable splice boxes have emerged one after another. Now these products are also collectively referred to as hardware. In telecommunications transmission, the telecommunications sector has been using hardware products when using overhead optical cables in the past, which is usually not called hardware. In recent years, the varieties of optical cables used in the telecommunications sector have become more and more abundant, and the construction methods of overhead optical cables have also increased, especially with the promotion and application of all-dielectric self-supporting optical cables (ADSS) in telecommunication systems, The term is gradually accepted and used. Various optical cable fixtures, fixtures and other products that have appeared in the market have also been included in the category of overhead optical cable fittings.


Aerial optical cable fittings can be divided into four categories:

1) Self-supporting power overhead optical cable fittings;

2) Self-supporting non-electric overhead optical cable fittings;

3) Non-self-supporting overhead optical cable fittings;

4) FTTH outdoor overhead optical cable fittings.


Since overhead optical cable fittings serve for overhead optical cables, their classification is also closely related to the type of overhead optical cables. According to the design principles and application characteristics of different aerial optical cables, non-self-supporting aerial optical cables refer to traditional telecommunication aerial optical cables, which are commonly used aerial optical cables such as GYTA, GYTS, and GYFTY. At present, the construction method of this type of optical cable has been solidified, and the hardware is relatively simple.


This article focuses on the other three types of overhead optical cable fittings except self-supporting overhead optical cables, their design principles, new design schemes, application characteristics and environmental requirements.


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