Comprehensive Explanation of National Standard Specifications for Optical Cable Dimensions

The international community has established unified standards for the dimensions of optical cables. This article will introduce the national standard specifications for optical cable dimensions, including parameters such as cable diameter, outer diameter, and core count, while explaining their impact on cable performance and applications.

I. Optical Cable Diameter

The optical cable diameter refers to the distance between the central core line and the outermost insulating layer, commonly used to describe the cable's thickness. According to national standards, there are two types of optical cable diameters: standard diameter and small diameter.

1. Standard Diameter: Standard diameter refers to optical cables with a diameter above 8.0mm, suitable for high-capacity long-distance transmission. Common diameter specifications for standard cables include 8.0mm, 9.0mm, 10.0mm, etc.

2. Small Diameter: Small diameter refers to optical cables with a diameter below 8.0mm, suitable for limited space wiring. Cables with small diameters have the advantages of being compact and lightweight, making them more suitable for short-distance indoor transmission. Common small diameter specifications include 6.0mm, 4.0mm, 3.0mm, etc.

II. Optical Cable Outer Diameter

The optical cable outer diameter refers to the distance between the outermost insulating layer and the outermost protective sheath, representing the cable's width. According to national standards, optical cable outer diameters are categorized into various types: standard outer diameter, medium outer diameter, small outer diameter, micro outer diameter, etc.

1. Standard Outer Diameter: Standard outer diameter refers to optical cables with an outer diameter above 10.0mm, suitable for high-capacity long-distance transmission. Cables with standard outer diameters typically exhibit better mechanical strength and tensile performance, making them suitable for outdoor environments. Common standard outer diameter specifications include 10.0mm, 12.0mm, 14.0mm, etc.

2. Medium Outer Diameter: Medium outer diameter refers to optical cables with an outer diameter ranging from 8.0mm to 10.0mm, suitable for medium-capacity and distance transmission. Cables with medium outer diameters can balance transmission performance and mechanical properties. Common medium outer diameter specifications include 8.0mm, 9.0mm, etc.

3. Small Outer Diameter: Small outer diameter refers to optical cables with an outer diameter ranging from 6.0mm to 8.0mm, suitable for limited space wiring. Cables with small outer diameters maintain transmission performance while having a smaller volume and weight, making them suitable for indoor wiring. Common small outer diameter specifications include 6.0mm, 7.0mm, etc.

4. Micro Outer Diameter: Micro outer diameter refers to optical cables with an outer diameter ranging from 4.0mm to 6.0mm, suitable for narrow space wiring. Micro outer diameter cables have a smaller volume and weight, making them suitable for short-distance transmission and special environments. Common micro outer diameter specifications include 4.0mm, 5.0mm, etc.