The structure and technical characteristics of mine optical cable

As the name suggests, the mine optical cable is an optical cable used in various mines. It is also called a mine flame-retardant optical cable. Because the working environment is relatively harsh, it also requires high performance. Its structure is to insert single-mode or multi-mode optical fiber into a loose tube made of high-modulus plastic, and fill the tube with water-blocking compound to ensure good fireproof, waterproof and moisture-proof performance. The center of the cable core is a phosphor Steel wires or steel wires extruded with polyethylene, loose tubes (or filled ropes and signal wires) are stranded around the central reinforcing core to form a compact and circular cable core, and the gaps in the cable core are filled with water-blocking filler steel-polyethylene After bonding the inner sheath, the blue flame retardant pvc sheath is cabled.

Technical features: low loss, low dispersion, compact structure, good comprehensive mechanical properties, allowable lateral pressure (n/100mm): long-term: 300, short-term: 1000 allowable tension (n): long-term: 600, short-term: 1500 allowable bending radius : 20 times the cable diameter when laying, 10 times the cable diameter when working ～17.4 Number of optical fibers (core): 2～144 Optical cable weight (kg/km): 156～340.

Features:

a. Accurate excess length control ensures that the optical cable has good tensile and temperature characteristics.

b. The secondary sheath is made of blue flame-retardant PVC, so that the optical cable has a good flame-retardant effect.

c. Metal reinforcement components, loose tube layer stranding filling type, steel-polyethylene sheath, pvc outer sheath, so that the optical cable has good mechanical properties. Mine Video Optical Cable Supply -----Applicable Scope Application: Long-distance communication and inter-office communication in mining area, operating temperature (℃): -40～+70 Laying method: overhead, pipeline, direct burial Mine video optical cable supply.

Stranded mine optical cable, the implementation standard for the supply of layered mine flame-retardant optical cable, model specification: mgtsv specification: 2-96 cores, 2-12 cores Scope and purpose: mainly used for voice, image and data signals in coal mines The transmission method and environment: suitable for overhead and through pipe installations, and the applicable environment is -40°C ~ +60°C.

The above is the structure, characteristics and characteristics of the mine optical cable, I hope it will be helpful to you.