The requirements of current mines are becoming more and more stringent, so now we need to understand the introduction and new function expansion of mining flame retardant optical cables. For mining optical cables, safety, flame retardant and other characteristics are the first things we must consider. Mine optical cable is flame retardant communication optical cable for coal mine or flame retardant communication optical cable for coal mine, referred to as mine optical cable, coal mine optical cable or coal optical cable, and its model is MGTSV.
Mine flame retardant optical cable
Specifications of mine fiber optic cable:
Central bundle tube type mine optical cable MGTSV (2-12 cores)
Cable outer diameter: 11.4mm, cable weight: 190kg/km, minimum bending radius: 120 (static)/240 (dynamic), tensile force: 1500N (short-term)/600N (long-term) Flattening performance: 1000N/100mm
Stranded mine optical cable MGTSV (2-72 cores)
1. 2-30 cores
Cable outer diameter: 12.7mm, cable weight: 180kg/km, minimum bending radius: 160(static)/320(dynamic)
2. 32-60 cores
Cable outer diameter: 13.9mm, cable weight: 240kg/km, minimum bending radius: 170(static)/340(dynamic)
3. 62-72 cores
Cable outer diameter: 15.1mm, cable weight: 286kg/km, minimum bending radius: 190(static)/380(dynamic)
The structure of mine flame retardant optical cable:
Mine flame retardant optical cable is to sleeve single-mode or multi-mode optical fiber into a loose tube made of high-modulus plastic, and the tube is filled with a water-blocking compound. The center of the cable core is a phosphating steel wire or a steel wire rope extruded with polyethylene. The loose tube (or filling rope and signal wire) is twisted around the central reinforcing core to form a compact and round cable core, and the gap in the cable core is filled with After the water blocking filler steel-polyethylene is bonded to the inner sheath, the blue flame retardant PVC sheath is formed into a cable. The flame retardant mine cable has a flame retardant sheath, which can block the water in the whole section and ensure good water and moisture resistance. , The loose tube is filled with special ointment to protect the optical fiber critically. The two parallel round steel wires are resistant to both tension and lateral pressure. The outer diameter of the optical cable is small, light in weight, and excellent in bending performance. The loose tube is located in the physical center of the optical cable, which is convenient for construction and operation, low loss, low dispersion, compact structure, and good comprehensive mechanical properties.
Mine flame retardant optical cable introduction and new function expansion:
1. Mining optical cable MGTSV is a special application of optical fiber and cable in the field of communication, that is, a communication optical cable specially used in the coal mine industry, and is an optical cable in coal mines, gold mines, iron mines and other mining occasions.
2. Mining optical cable MGTSV not only inherits all the properties of optical fiber and cable, but also adds many special properties due to the special requirements of the coal mining industry. , gold mines, iron mines and other mines, especially coal mines are prone to accidents. In order to ensure smooth communication and reduce losses when accidents occur, the State Administration of Work Safety requires all products used in coal mines, including communication optical cables. The safety certification inside is: mining product safety mark certification
3. Because there are no corresponding standards for others such as gold mines and iron mines, and because the comprehensive performance of coal mine optical cables is the current mining standard, it is also a relatively high requirement in the industry.
Mine flame retardant optical cable features:
A. Accurate excess length control ensures that the optical cable has good tensile performance 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 reinforcing member, loose-layer twisted filling type, steel-polyethylene shield, PVC outer sheath, so that the optical cable has good mechanical properties.
The above is the introduction of the characteristics and models of the mine flame retardant optical cable, and the new development direction of the mine optical cable. I hope you can grasp the latest developments in mining optical cables. ZR Cable has been focusing on the research and development and sales of optical fiber products for more than ten years. If you have doubts about optical communication and demand for high-quality optical fiber products, you can consider ZR Cable optical fiber brand, ZR Cable optical fiber products are made with ingenuity.
