6-core mining flame-retardant optical cable export packaging

6-core mining flame-retardant optical cable export packaging

Mining optical cableMGTSVNot only does it inherit all the performance of fiber optic cables, but it also adds many special properties due to the special requirements of the coal mining industry. The main added properties are flame retardant and rodent proof (in the special environment of mines). Due to the frequent occurrence of accidents in coal mines, gold mines, iron mines and other mines, especially in coal mines, in order to ensure smooth communication and reduce losses in case of accidents, our products comply with the safety mark certification for mining products.

6-core mining flame-retardant optical cable export packaging

1Mining optical cableMGTSVIt is a special application of fiber optic cables in the field of communication, specifically used in the coal mining industry. It is an optical cable used in mining environments such as coal mines, gold mines, and iron mines.

2Mining optical cableMGTSVNot only does it inherit all the performance of fiber optic cables, but it also adds many special properties due to the special requirements of the coal mining industry. The main added properties are flame retardant and rodent proof (in the special environment of mines). Due to the frequent occurrence of accidents in coal mines, gold mines, iron mines and other mines, especially in coal mines, in order to ensure smooth communication and reduce losses in case of accidents, safety certification including communication optical cables is called mining product safety mark certification.

3Because there are no corresponding standards for other industries such as gold and iron mines, and because the comprehensive performance of coal mine optical cables is the standard for mining, it is also a relatively high requirement in this industry.

Due to the implementation of standards, other mines generally design and produce according to the fiber optic cables used in coal mines

4There is only one model of communication optical cable certified by safety standardsMGTSVAnd the corresponding requirements are as follows, the practical scope of which is: vertical shafts and tunnels in mines and tunnels.

Flame retardant communication optical cable for coal minesIt is to insert single-mode or multi-mode optical fibers into a loose tube made of high modulus material, and fill the loose tube with waterproof compound. The center of the cable core is a metal reinforced core, and for some fiber optic cables with a certain number of cores, a layer of polyethylene needs to be extruded outside the metal reinforced core（PE）. The loose tube (and filling rope) is twisted around the central reinforcement core to form a compact and circular cable core, and the gaps inside the cable core are filled with water-resistant filling material.

Flame retardant communication optical cable for coal minesDouble sided coated steel strip（PSP）Squeeze flame-retardant sheath into cable after longitudinal wrapping.

Models and names of communication optical cables used in coal mines

　　MGTS: Metal reinforced components, loose sleeve layer twisted filling type, steel—Polyethylene bonding protective layer, flame-retardant polyolefin outer sheath, coal mine communication optical cable.

　　MGTSV: Metal reinforced components, loose sleeve layer twisted filling type, steel—Polyethylene bonding protective layer, flame-retardant polymer outer sheath, coal mine communication optical cable.

　　MGXTSV: Center tube filling type, metal reinforced component, steel—Polyethylene bonding protective layer, flame-retardant polymer sheath, coal mine communication optical cable

　　MGTS33Metal reinforced components for coal mines, loose sleeve layer twisted filling type, steel-Polyethylene bonded sheath, steel wire armor, flame-retardant polyolefin sheath communication optical cable

　　MGTSVMining optical cableSpecification Model

　　MGXTSVMining optical cableSpecification Model

　　MGTSMining optical cableSpecification Model

　　MGTS33Mining optical cableSpecification Model

The excess length control of communication optical cables used in coal mines ensures that the cables have good tensile performance and temperature characteristics;

Metal reinforced components, loose sleeve layer twisted filling type, steel polyethylene cover,PVCThe outer sheath ensures that the optical cable has good mechanical properties;

The loose tube material itself has good hydrolysis resistance and high strength;

The tube is filled with special grease to provide critical protection for the optical fiber;

Specially designed tight fiber optic cable structure effectively prevents sleeve retraction;

Good compression resistance and flexibility;

The communication optical cable used in coal mines adopts blue flame retardantPVCPerform secondary sheathing to give the optical cable a good flame retardant effect.

When storing cables, please pay attention to the following points:

1.The newly added whole cable is sealed with plastic sealing sleeves at both ends when it leaves the factory. However, after using up a section according to the actual situation at the construction site, the remaining part is simply wrapped with plastic cloth to cover the fracture. Due to poor sealing and outdoor placement, over time, it is inevitable that moisture will seep into the cable.
2.When laying cables, it is necessary to frequently cross roads, bridges, culverts, etc. Due to weather or other reasons, a lot of water often accumulates in the cable trench. During the laying process, it is inevitable that the cable head will be immersed in water, and water will enter the cable due to loose or damaged plastic wrapping; In addition, during traction and threading, sometimes the outer sheath or even steel armor may be scratched, which is particularly prominent when using mechanical traction.
3.After the cable laying was completed, due to the limitations of on-site construction conditions, the cable head could not be made in a timely manner, resulting in the unsealed cable fracture being exposed to air for a long time, and even immersed in water, causing a large amount of water vapor to enter the cable.
4.During the production process of cable heads(Including terminal heads and intermediate connectors)Due to the negligence of construction personnel, the newly processed cable ends sometimes accidentally fall into the accumulated water on site.
5.wire and cableDuring normal operation, if a breakdown or other fault occurs for some reason, the accumulated water in the cable trench will enter the interior of the cable along the fault point; In civil construction, especially in construction sites that use large construction machinery, cable damage or breakdown accidents caused by various human factors are not uncommon. When such accidents occur, the insulation of the cable is severely damaged, which can also cause water to enter the cable. After the cable enters the water, it will undergo water tree aging under the action of the electric field, ultimately leading to cable breakdownWater trees have a diameter of0.1mA collection of pores filled with water up to a few micrometers. The impurities, pores, and uneven bonding surfaces between the insulation and the inner and outer semiconductive layers in the insulation form local high electric field sites, which are responsible for the formation of water treesPoint.