Basic introduction to Jiangmen optical cable The sheath of optical cable can be divided into inner sheath and outer sheath.
The inner sheath is generally made of polyethylene or polyvinyl chloride, etc. The outer sheath can be determined according to the laying conditions, such as LAP outer sheath composed of aluminum strips and polyethylene plus steel wire armor.
There are four commonly used optical cable structures: layered type, skeleton type, central bundle tube type and ribbon type.
This optical cable integrates the cable core part and the steel wire suspension wire into an "8 ""-shaped PE sheath forms a self-supporting structure. There is no need to set up hanging wires and hooks during the laying process. The construction efficiency is high and the construction cost is low.Overhead laying between poles, poles and buildings, and buildings can be easily realized.
According to the relevant recommendations of ITU-T, the current optical cable model consists of two parts: the type code of the optical cable and the specification code of the optical fiber, separated by a short horizontal line in the middle.
The type code of optical cable consists of five parts: classification, reinforcing member, derived characteristics, sheath and outer layer.
The structural characteristics of optical cables should be able to represent the main types of cable cores and the derived structures of optical cables.
When the optical cable type has several structural features that need to be noted, it can be represented by a combination code. The combination codes are arranged in order from top to bottom according to the following corresponding codes.
