MGTS-4B mining flame-retardant communication optical cable MGTSV-4-core single-mode optical cable

MGTS-4B mining flame-retardant communication optical cable MGTSV-4-core single-mode optical cable

MGTSVFlame retardant optical cable for cable mining, capable of accommodating4to288Core, can be used for various overhead, pipeline, buried and other laying, widely used in mining.

MGTSVThe structure of mining optical cables is to250μmThe optical fiber is inserted into a loose tube made of high modulus material, and the loose tube is filled 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 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, and double-sided plastic coated steel strips are used（PSP）Squeeze flame-retardant sheath into cable after longitudinal wrapping.MGTS-4B mining flame-retardant communication optical cable MGTSV-4-core single-mode optical cable

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. The main added properties are flame retardant and rodent proof (in the special environment of mines). As coal mines, gold mines, iron mines and other mines are prone to accidents, especially coal mines, in order to ensure smooth communication and reduce losses in the event of accidents, the Production Supervision and Administration Bureau requires safety certification for all products used in coal mines, including communication optical cables, namely: Mining Product Safety Mark Certification - Coal Safety Certification.

Features of MGTSV optical cable products:

Accurate control of excess length ensures that the optical cable has good tensile performance and temperature characteristics;

Metal reinforced components, loose sleeve layer twisted filling type, steel polyethylene cover, make the optical cable have 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;

Using blue flame-retardant PVC for secondary sheathing, the optical cable has a good flame-retardant effect.

Laying method: Optical cables used in coal mines, gold mines, mining applications, etc.

Application scope: Vertical shafts and tunnels in mines and tunnels

　　1、Flame retardant communication optical cable for coal minesIt is a special application of fiber optic cables in the field of communication, specifically used in the coal mining industry as communication cables. It is an optical cable used in coal mines, gold mines, and other mining environments.2、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, mainly including flame retardant and rodent proof properties(Special environment of mine)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 the event of accidents, the Production Supervision and Administration Bureau(State Administration of Coal Mine Safety)Mandatory requirement for safety certification of all products used in coal mines, including communication optical cables, namely: mining product safety mark certification3Because there are no corresponding standards for other mines such as gold mines and iron mines, and because the comprehensive performance of coal mine optical cables is a standard for mining and also a relatively high execution standard in the industry, other mines generally follow the standards for coal mine optical cables

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, mainly for the purpose of enhancing

Due to the flame retardant and rodent proof properties (special environment of mines), as coal mines, gold mines, iron mines and other mines, especially coal mines are accident prone areas, in order to ensure smooth communication and reduce losses in the event of accidents, the Production Supervision and Administration Bureau (National Coal Mine Supervision Bureau) requires the certification of all products used in coal mines, including communication optical cables, namely: mining product safety mark certification-Coal safety certification

3Because there are no corresponding standards for other minerals 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

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

Mining fiber optic cable structure

Divided into:a-Central bundle tube type（2－12Core, due to process issues, this process can only produce up to12Core)

b-Layer twisting type(2-144Core, generally smaller than12The core tends to use a central beam tube type)

1Central bundle tube type: from inside to outside, it consists of optical fiber, optical fiber paste, loose tube, thin steel wire (often wrapped in a circle), and steel strip,PEInner protective layer, flame retardant sheath(blue)

2Layer twisting type: from inside to outside, the central reinforcement (usually made of phosphated steel wire), optical fiber, optical fiber paste, loose tube, cable tie, cable paste, steel strip are arranged in sequence,PEInner protective layer,

Flame retardant sheath (blue)

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, with a loose sleeve(Or fill ropes and signal lines)Strengthen the core around the center to form a compact and circular cable core, and fill the gaps inside the cable core with water-resistant filling material steel-Blue flame retardant after bonding the inner sheath with polyethylenePVCSheath into cable.

Mining fiber optic cable specifications

Central bundle tube mining optical cableMGTSV（2-12Core)

Cable outer diameter:11.4mmCable weight:190kg/km,Bending radius:120(Static)/240(Dynamic), tensile force:1500Nshort-term)/600N(Long term) Flattening Performance:1000N/100mm

Layered twisted mining optical cableMGTSV（2-72Core)

1、2-30core

Cable outer diameter:12.7mmCable weight:180kg/km,Bending radius:160(Static)/320(Dynamic)

2、32-60core

Cable outer diameter:13.9mmCable weight:240kg/km,Bending radius:170(Static)/340(Dynamic)

3、62-72core

Cable outer diameter:15.1mmCable weight:286kg/km,Bending radius:190(Static)/380(Dynamic)

Mining fiber optic cable category

1According to the transmission medium inside the optical cable-The characteristics of optical fibers (glass or plastic fibers) are divided into single-mode fibers and multi-mode fibers,

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

3Single mode(B)A conductor (commonly known as glass fiber) that transmits only one wavelength (frequency) in the medium (usually silicon dioxide, i.e. glass) and is slightly thicker than a human hair

Brittle, easily breakable, and tough (with high tensile strength), single-mode optical fibers have almost opposite mechanical properties to human hair. Due to the inconsistency in optical transmission performance caused by the characteristics of other components of the medium, single-mode optical fibers are further divided into:B1.1(Non dispersive shifted single-mode fiberITU-T G652)andB4(Non zero dispersion shifted single-mode fiberITU-T G655),The wavelengths that can generally be used are1310nmor1550nm,The main single-mode fiber used isB1.1Sometimes abbreviated asBIt meansB1.1(Non standard name)

4Multi modeA1(ITU-T G651 )In this medium (single-mode), multiple wavelengths (frequencies) can be transmitted simultaneously. The conductor slightly thicker than a human hair (commonly known as the same as above) is further subdivided into:A1a(50/125)andA1b(62.5/125)And collectively referred to asITU-T G651The wavelengths commonly used for long-term use are1310nmor850nm

5Regarding the distance of fiber optic transmission

Generally, it can be achieved in single-mode transmission without relay120km,Multimodal is2km；10/100/1000MThe optical signal can generally be transmitted in single-mode without relay60--80kmMulti modal matters500m--50/125um；200m--62.5/125umTherefore, multimode is generally used indoors or for jumpers, while single-mode is used outdoors for long-distance transmission.

Design and Production4There is only one model of communication optical cable certified by safety standardsMGTSVAnd the corresponding requirements are as follows. Its practical scope is: vertical shafts and tunnels in mines and tunnels

1According to the transmission medium inside the optical cable-optical fiber(Or plastic fiber)Characteristics are divided into single-mode fiber and multi-mode fiber,2According to the characteristics of the selected optical fibers, mining optical cables are divided into single-mode optical cables and multi-mode optical cables3Single mode(B): indicates that in this medium(Usually it is dioxide, which is glass)Only transmit one wavelength in the middle(frequency)A conductor slightly thicker than a strand of hair(Commonly known as glass fiber)Brittle, easy to break, tough(Strong pulling force)In terms of mechanical properties, it is almost opposite to hair strands, and the optical transmission performance is affected by the characteristics of other components of the medium*Sex, single-mode fiber is further divided into:B1.1(Non dispersive shifted single-mode fiberITU-T G652)andB4(Non zero dispersion shifted single-mode fiberITU-T G655),The wavelengths that can generally be used are1310nmor1550nm,The main single-mode fiber used isB1.1Sometimes abbreviated asBIt meansB1.1(Non-standard appellation)4Multi modeA1(ITU-T G651 ): indicates that in this medium(Single mode communication)Multiple wavelengths can be transmitted simultaneously in China(frequency)A conductor slightly thicker than a strand of hair(Commonly known as the same as above)Multimode fiber is further divided into:A1a(50/125)andA1b(62.5/125)And collectively referred to asITU-T G651The wavelengths commonly used for long-term use are1310nmor850nm5Regarding fiber optic transmission distance, it is generally achievable in single-mode transmission without relays120km,Multimodal is2km; 10/100/1000MThe optical signal can generally be transmitted in single-mode without relay60--80km;Multimodal matters500m--50/125um; 200m--62.5/12