Solid insulated filled cables are suitable for pipeline laying in coal mine pipelines, mainly used for pipeline laying. Fill or pour petroleum paste on the inner and outer surfaces of the cable core and shielding layer to prevent moisture from entering the coal mine. Under the common environmental conditions of 30-60 ° C in coal mines, the mechanical and electrical performance of communication cables used in coal mines remains unchanged. Used for communication lines in level tunnels, inclined tunnels, and mechanical and electrical chambers, as well as for main signal transmission in level tunnels, vertical shafts, or inclined shafts. $r $nMHYV-1 * 2 * 7/0.37 Mining Flame Retardant Communication Cable Price
MHYV-1 * 2 * 7/0.37 Mining Flame Retardant Communication Cable Price
MHYVP mining communication cable is a type of communication cable used in special environments such as mines. The following is a detailed introduction:
M: Used for coal mines.
H: Represents communication cable.
Y: Represents polyethylene insulation.
V: Represents polyvinyl chloride sheath.
P: Represents braided shieldingMHYV-1 * 2 * 7/0.37 Mining Flame Retardant Communication Cable Price
147/0.52The cable consists of one main core and four pairs of twisted wires, with each core made up of seven strands of copper wire with a diameter of 0.52mm.
conductorUsing annealed bare copper wire, it has good conductivity and can ensure stable and efficient signal transmission.
insulating materialUsing high-density polyethylene or polypropylene, indicate the color of the insulated wire according to the full chromatographic standard for easy identification and differentiation of different wire cores.
Insulated wire pairTwisting two insulated wires of different colors into pairs at different pitches and using a specified chromatographic combination to identify wire pairs can effectively reduce crosstalk between wire pairs.
Cable core structureUsing 1 pair as the basic unit, cables with more than 25 pairs are combined by unit, and each unit is wrapped with a unit cable tie of the specified color spectrum. For cables with 100 or more pairs of wires, there is a 1% reserve wire pair, but not more than 6 pairs at most.
Cable core wrapping tapeWrap the cable core with polyester film tape to provide protection and insulation.
blockUsing copper wire shielding or rolled (or non rolled) metal tape, the metal tape is longitudinally wrapped outside the communication cable core wrapping tape, which can effectively resist external electromagnetic interference and ensure the accuracy of signal transmission.
sheathUsually made of blue low-density polyethylene, it can also provide a double-layer sheath structure, which has good wear resistance, heat resistance, and corrosion resistance, and can protect the internal structure of the cable from external environmental damage.
Strong anti-interference capabilityBy designing a shielding layer, it can effectively prevent the influence of external electromagnetic interference on signals, ensuring stable and accurate signal transmission in complex mining electromagnetic environments6.
Good environmental adaptabilityCan maintain mechanical and electrical performance unchanged under the common environmental conditions of 30 ℃ -60 ℃ in coal mines, and has good moisture resistance and corrosion resistance, suitable for harsh mining environments such as humidity and chemical corrosion1.
Stable electrical performanceGood insulation performance, reasonable design of parameters such as capacitance and inductance of the cable, can ensure the quality and speed of signal transmission, and meet the requirements of signal transmission in mining communication systems.
Mine communication systemMainly used as a communication network for underground mines, metal mines, and non-metal mines, it can serve as an internal communication line for transmitting signals such as voice, data, and video, such as achieving communication between the mine dispatch room and various underground operation points.
Mine monitoring systemCan be used to connect various monitoring devices in mines, such as environmental monitoring sensors, video surveillance cameras, etc., to transmit monitoring data and image signals to the monitoring center for real-time monitoring of the production safety status of the mine.
Laying temperatureThe ambient temperature for cable laying should not be lower than -10 ℃ to avoid damage to the insulation layer of the cable caused by laying in a low-temperature environment.
bend radiusThe bending radius of the cable during laying should not be less than 15 times the outer diameter of the cable to prevent damage to the internal structure of the cable due to excessive bending.
Installation and MaintenanceDuring installation, the cable should be protected from mechanical damage, avoid contact with sharp objects, and prevent being squeezed by heavy objects. At the same time, attention should be paid to avoiding long-term exposure of cables to high temperatures, humidity, or corrosive environments. During use, it is necessary to regularly inspect the appearance and connection of the cable. If problems such as insulation layer damage or exposed shielding layer are found, they should be dealt with in a timely manner.
