The use of mine communication cables, mine communication cable manufacturers

Types of communication cables for mines.

The first branch of Tianjin Cable General Factory mainly produces HYA local ** cables, HYA communication cables, various special cables, communication cables (with TEEL certification), control cables, computer cables, fluoroplastic high-temperature cables and various cables can produce steel belt armor and steel wire armor. Professional manufacturer of flame retardant communication cables, flame retardant control cables, flame retardant signal cables, all-plastic power cables and polyolefin insulated aluminum-plastic composite sheathed local communication cables.

2.Foshan Nanhai Li Jun Telecom **** is located in Shishan, Nanhai District, Foshan City. The company mainly produces HYA communication cables, HYAT outdoor oil-filled communication cables, HYV indoor communication cables, HSYV-3 indoor communication cables, HYA-3 outdoor communication cables, super 5 network cables, 6 network cables and other products.

3.Shanghai Jingjiu Special Cable is a high-tech modern enterprise integrating R&D, wire and cable design and production. Its products are widely used in machinery manufacturing, woodworking machinery, cutting and welding machinery, CNC engraving machinery, CNC coating machinery, industrial robots, servo round key motors, lifting machinery, conveying machinery, lifting machinery, elevator manufacturing and installation, electrical and electrical installation and industrial automation, wind power generation and other industries and fields.

The main products developed and produced by our factory are: wires and cables for electrical equipment and wires and cables for CNC machinery.

4.Shanghai Henggong Wire & Cable **** is an enterprise specializing in the production and processing of insulated wires, elevator cables, traction cables, photovoltaic cables, power cables, control cables, compensation cables, computer cables, elastic flexible cables, intrinsically safe cables, silicone rubber cables, aluminum cables, and mineral insulated cables, with a complete and scientific quality management system.

Summary. Hello dear! What cables are included in coal mine communication cables?

1. What are the types of coal mine cables, which are commonly used in underground cables, which are divided into three categories, namely armored cables, plastic cables and mining rubber sheathed soft-pack cables. Armoured and plastic cables are mainly used for underground power supply trunks or to supply power to fixed equipment, while mining rubber sheathed flexible cables are mainly used to supply power to mobile equipment. 2. What are the types of cables commonly used in coal mines, and the mining cables are divided into three categories:

Armoured cables, rubber sheathed cables, plastic cables. The so-called armored cable is to use steel wire or steel belt to armor the cable. 3. What type of mining cable is used to indicate that if it is an (aluminum core) conductor, L is added in the middle, that is, VLV and YJLV respectively; For flame-retardant cables, ZR is added in front, that is, ZR-VV, ZR-YJV; Fire-resistant cables, in front of N (or NH), that is, NH-VV, commonly used in coal mines, those cables used in coal mines The power cables used in coal mines mainly include:

myjv,myjv22,myjv42,mvv,mvv22,myptj。

Hello dear! What cables are included in coal mine communication cables? 1. What are the types of coal mine cables, which are commonly used in underground cables, which are divided into three categories, namely armored cables, plastic cables and mining rubber sheathed soft-pack cables.

Armored and plastic cables are mainly used underground for the main line of Liheng Electric or to supply power to fixed equipment, and the rubber sheathed flexible cable for mining is mainly used to supply power to mobile equipment. 2. What are the types of cables commonly used in coal mines, and the mining cables are divided into three categories: armored cables, rubber sheathed cables, and plastic cables.

The so-called armored cable is to use steel wire or steel belt to armor the cable. 3. What type of mining cable is used to indicate that if it is an (aluminum core) conductor, L is added in the middle, that is, VLV and YJLV respectively; If the limb is used to burn the cable, ZR is added in front, that is, zr-vv, zr-yjv; Fire-resistant cables, add N (or NH) in front, that is, NH-VV, commonly used in coal mines, those cables used in coal mines The power cables used in coal mines mainly include: MYJV, MYJV22, MYJV42, MVV, MVV22, MYPTJ.

5.Mining cables are divided into three categories according to the MT818-99 standard: 1. Rubber sheathed cables for mobile use, 2 plastic power cables, 3 types of resistive communication cables.

Hello dear First of all, I am happy to answer for you I am a senior tutor of medical life, Mr. Ali, Yes, Coal mine communication cables include ignition mine cables, broadcast cables, voice cables, monitoring cables, transmission cables, optical cables, control cables, etc. A cable is a device used to transmit electricity or data signals, and can also be used to receive or transmit electrical energy. A cable is an electrical connector whose main role is to connect power sources and devices in order to transmit electrical energy.

It can also be used for signal transmission, such as data transmission, ** transmission, etc. A cable is an electrical energy or signal transmission device, usually consisting of several wires or groups of wires. The cable is divided into Xinyanru cable and power cable, the former is for the transmission of signals, such as cable TV optical cables and ** cables, etc., and the latter is for the transmission of electric energy.

The main function of wires and cables is to transmit electric energy, signals and realize electromagnetic conversion, such as power cables, overhead lines, etc., such as power cables, overhead lines, etc., synaxial cables that transmit signals, and enameled wires that realize electromagnetic conversion. I hope it helps you, and finally I wish you a happy day and a smile on your lips

Coal mine communication cables usually mainly include power cables, control cables, signal cables, first-class cables, coal mine special cables, etc. Among them: 1. Power cable:

Mainly used for power supply in coal mines, including flexible power cables, explosion-proof power cables, polyethylene insulated power cables, etc.; 2. Control cables: used for remote control of coal machinery, hoists and underground transportation machinery in coal mines, including flexible control cables, explosion-proof control cables, Changkai, Huxun fire-resistant control cables, polyethylene control cables, etc.; 3. Signal cable: used for the detection and signal transmission of coal mine coal machinery, hoist and other equipment, including flexible signal cables, explosion-proof signal cables, fire-resistant signal cables, etc.; 4. **Cable:

It is used for voice signal transmission in coal mines, usually flexible ** cable; 5. Special cables for coal mines: electrical equipment and safety equipment used in special environments of coal mines, including fire-resistant cables, flame-retardant cables, protective cables, heat-insulated cables, etc.

Mining cable is the abbreviation of coal mine cable, and mining cables are flame retardant cables, which should be issued by the National Mining Product Safety Marking Center of Anbiao.

U-type (M-type) rubber sheathed cable for coal mine Product standard This product is produced according to GB T12972-2008 "Rubber Sheathed Flexible Cable for Mining" and MT818-2009 "Flame Retardant Cable for Coal Mine", and can also be produced according to the standards recommended by the International Electrotechnical Commission (IEC), British Standards, German Standards and American Standards according to user needs. Scope of application: Mining rubber sheathed flexible cable is suitable for mobile laying cables for mining power units with power frequency rated voltage u0 u and below. Characteristics of use The rated voltage of power frequency U0 U is 380 660V, 660 1140V, .

The maximum allowable operating temperature of the cable conductor: 65 90 The minimum allowable working ambient temperature of the cable is -35 The bending radius of the cable: not more than 6 times the outer diameter of the cable.

Mining cables include MC cables, MCP cables, MZ cables, MZP cables, MYQ cables, MY cables, MCPTJ cables, MYPTJ cables, MVV cables, MKVV cables, MYJV cables, MKYJV cables, MHYV cables, UGF cables, high voltage mining cables, 10kV rubber sheathed cables, 6kV mine cables, mining mobile cables, mine flame retardant cables, MCPT cables, mining rubber sheathed cables.

1) Shearer shielded rubber sheathed flexible cable, rated voltage, power core 3 * 50, ground core 1 * 10, control core 4 * 4, with semi-conductive shielding layer, expressed as: 3 * 50 + 1 * 10 + 4 * 4 2) shearer shielding monitoring braided reinforced rubber sheathed flexible cable, rated voltage is, power core 3 * 50, ground core 1 * 25, control core 2 *, with semi-conductive shielding, monitoring core and braided reinforcement, expressed as: 3 * 50 + 1 * 25 + 2* 3) Shearer metal shielding monitoring rubber sheathed flexible cable, rated voltage, power core 3*70, ground core 1*25, monitoring core 1*35, with metal shielding, expressed as 3*70+1*35+1*35 mt 4) Mobile elastomer flexible cable for coal mines, rated voltage, power core 3*25, ground core 1*16, without shielding, expressed as:

5) Mobile metal shielding monitoring rubber sheathed flexible cable for coal mine, rated voltage, power core 3*35, ground core 3*16 3, monitoring wire core 3*, with semi-conductive shielding, expressed as: 3*35+3*16 3+3* 6) Mobile shielded rubber sheathed flexible cable for coal mine, rated voltage, power core 3*25, ground core 1*16, for low temperature environment, with semi-conductive shielding layer, expressed as: 3*25+1*16 7) Coal mine electric drill shielded elastomer cable, rated voltage, The power core is 3*4, and the ground core is 1*4, which is expressed as:

8) Mobile light rubber sheathed flexible cable for coal mines, rated voltage, insulated wire core 3*, without shielding, expressed as: 3* 9) Coal mine miner's cap lamp wire, insulated wire core 2*, expressed as: mm 2*

MYQ 4* is used for lighting.

MY(P) 3*(4 95) Power supply MYP 3*(4 120) Power supply MYP 3*(4 120) Power supply MCP for shearer.

The above is a rubber sheathed cable.

MYJV MYJV22 MYJV32 MYJV42 cross-linked high voltage cable.

For MHYV communication.

MKVV for integrated control.

It also uses a lot.

Mineral cable is the earliest fireproof cable, which originated in Switzerland, and then developed into a certain scale by the United Kingdom and formulated the fire standard BS6387 standard.

Diagram of the structure of the mineral cable.

It is composed of copper conductor with high conductivity, mineral (magnesium oxide) insulating material, and seamless copper tube sleeve, and when the cable is used in the case of copper corrosion, the outermost layer is added with a layer of anti-corrosion protection outer sheath (optional).

The earliest introduction in China is the Shanghai Cable Research Institute, and by the Shenghua Electric mineral insulated cable batch manufacturing, the market application is very mature.

Mineral cable BTTZ has subsequently extended a variety of new models, such as BBTRZ cable, YTTW cable, BTLY cable, etc., all of which are developed and improved on the basis of BTTZ mineral cable, inheriting the fireproof, explosion-proof and waterproof characteristics, and improving production efficiency, reducing costs, so that more projects can use cost-effective fireproof cables.

Mineral insulated cable: referred to as MI cable, when used as wiring, it is customary to call it mineral cable or mineral fireproof cable in China.

At present, the basis for testing mineral cables in China is mainly BS6387 "Fire Resistance Test Method for Maintaining Integrity of Cables under Flame Conditions" in C (simple combustion), W (spray) and Z (impact) experiments. At present, according to the structure, it can be divided into two types: rigid and flexible.

Composition: Mineral insulated cable is composed of copper core, mineral insulating material, copper and other metal sheaths, in addition to having good conductivity, mechanical and physical properties, fire resistance, but also has good non-flammability, this cable can not only ensure the fire power supply during the fire duration in the case of fire, but also will not prolong combustion, do not produce toxic smoke.

Advantages: 1. Fire resistance: The two materials used in mineral insulated cables, copper and mineral insulation, are inorganic. The cable does not burn or support combustion, and can continue to operate in close proximity to flames. The copper sheath melts at 1083.

2. High operating temperature: mineral insulated cable can withstand continuous operating temperature up to 250. And, in the event of an emergency, the cable can continue to operate for a short time at a temperature close to the melting point of the copper sheath.

3. Long life: The inorganic materials used in mineral insulated cables can ensure the stability, long life and fire resistance of the cable.

4. Explosion-proof: The highly compacted insulating material in the mineral insulated cable can prevent steam, gas and flame from passing between the equipment parts connected to the cable.

5. Small outer diameter: The diameter of mineral insulated cable is smaller than that of other cables with the same rated current.

6. Waterproof: If the mineral insulated cable is completely immersed in water, with the help of its seamless metal sheath, the mineral insulated cable can continue to operate.

Mineral cable is a cable that ensures the normal operation of fire escape system equipment and provides power transmission in the event of a fire, and the biggest difference between ordinary cable is that it is not flammable and will not become the source of fire due to overload breakdown; Next, Shenghua Electric will introduce the specific differences between the two.

1. Ordinary cables.

The cable does not have flame retardant, fire-resistant, halogen-free and low smoke characteristics, and the cable insulation and sheath materials contain halogens, and the smoke generated during combustion is large, and the corrosiveness is high and emits harmful gases. Most of the electrical disasters are caused by the aging of wires and cables, and the large overload causes the cable to hit and burn.

2. Mineral cables.

Non-flammable, non-smoke, non-toxic and fire-resistant, it is usually constructed of copper conductors, magnesium oxide insulation, copper or metal sheaths, and can maintain circuit integrity for a period of time in the event of combustion, buying more time for escape.

3. How to choose which cable is suitable for which places?

1. When the wires and cables are laid in bundles, wires and cables with flame retardant properties should be used.

2. When selecting wires and cables, the flame retardant level should be selected according to the place of use and laying conditions, but the flame retardant and flame retardant and flame-retardant flame-resistant wires and cables selected in the same building should have the same flame retardant level.

3. The power supply line of fire-fighting equipment shall meet the requirements of the continuous operation time of fire-fighting electrical equipment in the building during fire.

Selection of fire-fighting equipment lines.

a. Mineral insulated cables should be used for the power supply trunk and branch trunk lines of fire-fighting equipment in special places.

B. The power supply trunk of the fire pump of the primary and secondary public buildings shall be mineral insulated cable, isolated fireproof cable or cable with fire performance in line with BS6387CWZ.

c. The branch lines and control lines of fire-fighting equipment should be wires or cables that are downgraded from the fire power supply trunk or branch trunk line.

d. The selection of signal transmission lines, linkage control lines, fire broadcast lines and fire protection lines of automatic fire alarm systems shall comply with the following provisions:

1) When wearing metal conduit or flame-retardant rigid plastic pipe, copper-core halogen-free and low-smoke flame-retardant wires and cables can be used;

2) When wearing a metal conduit with fire protection, copper core halogen-free low-smoke fire-resistant wires and cables should be used;

3) When laying in a metal trough box with fire protection, copper core halogen-free, low-smoke flame-retardant and fire-resistant wires and cables should be used.

The above points refer to the building fire protection design code in more details can be consulted, about the difference between ordinary cables and mineral cables and applications to introduce these, like to pay attention to Shenghua Electric, do not **, I hope to help you.