MGTSV mining optical cable 24 core flame-retardant optical cable

MGTSV mining optical cable 24 core flame-retardant optical cable

Mining fiber optic cable refers to flame-retardant communication fiber optic cable for coal mines or flame-retardant communication fiber optic cable for coal mines, abbreviated as mining fiber optic cable, coal mine fiber optic cable or coal fiber optic cable, and its model is MGTSV.

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

2. The mining optical cable MGTSV not only inherits all the performance of fiber optic cables, but also adds many special properties due to the special requirements of the coal mining industry, mainly for the purpose of adding.

Due to its flame retardant and rodent resistant properties (especially in the special environment of mines), coal mines, gold mines, iron mines, and other mines, especially coal mines, are prone to accidents. In order to ensure smooth communication and reduce losses in the event of accidents, the National Administration of Work Safety (National Coal Mine Safety Supervision Bureau) has mandated safety certification for all products used in coal mines, including communication optical cables, known as mining product safety mark certification.

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

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

4. The communication optical cable certified by safety standards only has one model, namely MGTSV, and the corresponding requirements are as follows. Its practical scope is: vertical shafts, tunnels, etc. in mines and tunnels.

The structure of the flame-retardant optical cable for mining is to encase single-mode or multi-mode optical fibers in a loose tube made of high modulus plastic, and fill the tube with a water-resistant compound. The center of the cable core is a phosphated steel wire or a steel wire rope extruded with polyethylene. A loose sleeve (or filling rope and signal wire) is twisted around the center to strengthen the core and form a compact and circular cable core. The gaps inside the cable core are filled with water-resistant filling material, steel polyethylene bonded inner sheath, and then blue flame-retardant PVC sheath is used to form the cable

1. According to the characteristics of the transmission medium inside the optical cable - optical fiber (glass or plastic fiber), it can be divided into single-mode fiber and multi-mode fiber,

2. According to the characteristics of the selected optical fibers, mining optical cables are divided into single-mode optical cables and multi-mode optical cables

3. Single mode (B): Refers to the transmission of only one wavelength (frequency) in a medium (usually silicon dioxide, also known as glass), which is slightly thicker than a human hair (commonly known as glass fiber), brittle, easy to break, and tough (with high tensile strength). It is almost opposite in mechanical properties to a human hair. Based on the characteristics of other components of the medium, the inconsistency in optical transmission performance is caused. Single mode fibers are further divided into B1.1 (non dispersion shifted single-mode fiber ITU-T G652) and B4 (non-zero dispersion shifted single-mode fiber ITU-T G655). The wavelengths that can generally be used are 1310nm or 1550nm. The main single-mode fiber used is B1.1, sometimes abbreviated as B, which refers to B1.1 (non-standard name)

4. Multimode A1 (ITU-T G651): Refers to a conductor slightly thicker than a human hair that can simultaneously transmit multiple wavelengths (frequencies) in the medium (single-mode). Multimode optical fibers are further divided into A1a (50/125) and A1b (62.5/125) and collectively referred to as ITU-T G651. Generally, long wavelengths used include 1310nm or 850nm

MGTSV mining optical cable 24 core flame-retardant optical cable

The underground fiber optic cable in coal mines is a flame-retardant communication cable designed specifically for harsh mining environments. Its core model is MGTSV and it needs to pass the National Mining Product Safety Mark Certification (MA).

The following are the key features and applications:

1、 Core Features

Flame retardant and explosion-proof use flame-retardant PVC outer sheath and anti rodent design to meet the safety requirements of flammable and explosive environments underground in coal mines.

Structural protection

Central bundle tube type: 2-12 cores, including loose tube, coated steel strip, and steel wire reinforcement layer.

Layered twisted type: 2-144 cores, reinforced with phosphated steel wire as the center, multi-layer water-resistant structure.

environmental adaptability

Full section water blocking design, filled with special grease, resistant to temperature changes of -30 ℃~60 ℃, strong tensile and compressive properties.

2、 Technical parameters

Transmission performance: Single mode fiber optic (G.652D standard) can transmit up to 120 kilometers without relay, supporting 4K video and gas monitoring data transmission.

Certification standard: Complies with MT/T 386-2011 and requires MA certification.

3、 Application scenarios

Mainly used for underground monitoring systems, emergency communication, and sensor networks, suitable for complex wiring environments such as vertical shafts and tunnels. Some models, such as MGXTSV, can also be used in underground or tunnel scenarios.