I. Optical cable model
The model of optical cable is the meaning represented by the code and number of optical cable, so as to facilitate people to know and use optical cable.
Optical cable (optical? Fiber? Cable) is made to meet optical, mechanical or environmental performance specifications. It is a communication cable assembly, which uses one or more optical fibers placed in the sheath as the transmission medium and can be used alone or in groups. Optical cable is mainly composed of optical fiber (glass fiber as thin as hair), plastic protective sleeve and plastic sheath. There are no metals such as gold, silver, copper and aluminum in optical cables, so they generally have no recycling value. Optical cable is a kind of communication line which is formed by a certain number of optical fibers in a certain way, and some optical fibers are covered with sheaths to realize optical signal transmission. That is, an optical cable formed by optical fiber (optical transmission carrier) through a certain process. The basic structure of optical cable generally consists of cable core, reinforced steel wire, filler and sheath, and also includes waterproof layer, buffer layer, insulated metal wire and other components as needed.
Second, the optical cable model naming method
1, communication cable type consists of five parts.
Ⅰ, Ⅱ, Ⅲ, ⅴI, indicating the type of optical cable.
Gy- outdoor optical cable for communication
GJ- indoor optical cable
Mg optical cable for coal mine
Ⅱ. Types of reinforcing members
(No model) —— Metal reinforcing member
F—— Non-metallic reinforcing member
Ⅲ. Structural characteristics
D- fiber ribbon structure
(Unsigned) —— Loose-sleeve layer-stranded structure
X center tube structure
G- skeleton structure
T-shaped filling type
Z- flame retardant structure
C8-8 self-supporting structure
ⅳ. Protective layer
Y- polyethylene sheath
Steel wire polyethylene bonded sheath tungsten steel
Stainless steel-polyethylene bonded sheath
Aluminum-polyethylene bonded sheath
V-PVC sheath
ⅴ. Outer protective layer
53— Corrugated steel strip longitudinally wrapped with armored polyethylene sheath
23— Ladle Armored Polyethylene Sheath
33— Thin steel wire wrapped with armored polyethylene sheath
43— Thick steel wire wrapped with armored polyethylene sheath
333- Double-layer thin steel wire sheathed armored polyethylene sheath
2. Representation of communication optical cable specifications
According to the number and type of optical fibers contained in the optical cable, the specifications of the optical cable are indicated.
For example, the specifications of four G.652 single-mode optical fibers are expressed as 4B 1. 1 or 4B 1. If the same optical fiber contains different kinds of optical fibers, the specifications are connected with "+".
If there are four multimode 50/ 125 optical fibers, it is denoted as 4A 1a or 4A 1.
3. Description of common models
Gyxtw- outdoor communication optical cable, metal reinforced, central tube filled, steel wire type, suitable for pipeline and overhead laying.
GYXTW53—— Outdoor communication optical cable, metal reinforcement, central pipe filled with steel wire and polyethylene adhesive sheath, longitudinal corrugated steel belt armored polyethylene sheath, suitable for direct burial.
Gyta- outdoor communication optical cable, metal reinforcement, loose stranded filler and aluminum-polyethylene adhesive sheath, suitable for pipeline and overhead laying.
Gyts- outdoor communication optical cable, with metal reinforcing member, loose stranded filler and steel-polyethylene adhesive sheath, suitable for pipeline and overhead laying.
Gyty 53-outdoor communication optical cable, metal reinforcement, loose stranded filler, polyethylene sheath, longitudinal corrugated steel belt armor, polyethylene sheath, suitable for direct burial.
Gyta53-outdoor optical cable for communication with metal reinforcement, loose-jacketed, stranded and filled, aluminum-polyethylene bonded sheath, longitudinal corrugated steel belt armored and polyethylene sheath, suitable for direct burial.
GYTA33—— outdoor optical cable for communication with metal reinforcement, loose-sheathed, stranded and filled, aluminum-polyethylene bonded sheath, single thin round steel wire armored and polyethylene sheath, suitable for direct burial and underwater laying.
Non-metallic reinforcing member, polyethylene sheathed, loosely twisted and filled outdoor optical cable for communication, suitable for pipeline and overhead laying, mainly used in places with strong electromagnetic hazards.
Gyxt C8s- outdoor communication optical cable, with metal reinforcing member, central tube filled, figure-8 self-supporting steel-polyethylene adhesive sheath, suitable for self-supporting overhead laying.
Gyt c8 s- metal reinforced structure? (7) Business collision? Span? Class = GramE & gt Stranded-filled, Figure-8 self-supporting and steel-polyethylene bonded sheathed outdoor optical cable for communication is suitable for self-supporting overhead laying.
ADS- polyethylene outdoor communication optical cable with nonmetallic reinforcement, loose stranded filler, circular self-supporting and spun fiber reinforced polyethylene sheath is suitable for self-supporting overhead laying of high-voltage towers.
Mgt jsv- metal reinforced member, loose-sleeve stranded filling type, steel-polyethylene bonded sheath, PVC sheathed flame-retardant communication optical cable for coal mine, suitable for underground laying in coal mine.
GJFJV- Non-metallic reinforcement, compact optical fiber and PVC sheathed indoor communication optical cable, mainly used for laying in buildings and indoors or as optical cable jumper.
The knowledge involved in the above-mentioned optical cable model introduction mainly includes the introduction of basic knowledge, such as the application and scope of optical cable. In addition, the naming skills of models and the expression of communication cable specifications are also introduced and analyzed for everyone, from which it is not difficult to understand the information worthy of reference in the process of screening and purchasing communication cable products. Interested friends can refer to the actual situation and information analysis of budget demand to help achieve the ideal effect advantage in the later stage.
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