UGFP3 * 25 high-voltage shielded rubber sheathed cable

1 introduction
Mining cable is the abbreviation for coal mine cable. Mining cables are all flame-retardant cables and should be issued a mining product safety mark certificate by the Safety Standard Mining Product Safety Mark Center.UType（MType: Rubber sheathed cable for coal mines
2 product standard
This product is based onGB/T12972-2008Mining rubber sheathed flexible cableMT818-2009The production of flame-retardant cables for coal mines can also be carried out according to the recommended standards of the Electrical Commission based on user needsIECProduced according to British standards, German standards, and American standards.
3 Scope of Application
Mining rubber sheathed flexible cable suitable for power frequency rated voltageU0/U 8.7/10KVMobile laid cables for mining power equipment and below.

3.1 Usage characteristics
●Power frequency rated voltageU0/Ufor380/660VThe660/1140VThe1.9/3.3kvThe3.6/6kvThe6/10KVThe8.7/10KV.
●High allowable operating temperature for cable conductors:65℃ 90℃
●The cable allows for a low working environment temperature of-35℃
●Cable bending radius: not greater than the outer diameter of the cable6Twice.
Mining cables includemcCable,mcpCable,mzCable,mzpCable,MyqCable,myCable,mcptjCable,myptjCable,mvvCable,mkvvCable,myjvCable,mkyjvCable,mhyvCable,ugfCable, high-voltage mining cable,10kvRubber sheathed cable,6kvMining cables, mining mobile cables, mining flame-retardant cables,mcptCable, mining rubber sheathed cable.

3.2 choice
In the mine power supply system, high-voltage power supply lines generally use armored cables, which have a relatively high failure rate compared to low-voltage power supply lines[1]It's much less. The power supply in mining areas is a weak link in the power supply system, and the working environment is poor. Therefore, how to choose the type and cross-section of cables is related to the safety of power supply operation. The following introduces the selection of cables and the method of selecting cable cross-sections.

3.3 Selection of cable model
The selection of cable models is closely related to the reliability, safety, and economic feasibility of power supply. Article 467 of the Coal Mine Safety Regulations stipulates the following selection requirements for cables:
1.The level difference of the actual cable laying location should be compatible with the allowable cable laying level difference specified.
2.The cable should have a conductor of sufficient cross-section for protective grounding.
3.It is strictly prohibited to use aluminum wrapped cables.
4.Flame retardant cables that have passed inspection and obtained safety labels for coal mining products must be selected.
5.The cross-section of the main cable core should meet the requirements of the power supply line load.
6.Requirements for fixed installation of high-voltage cables:
（1）In the vertical shaft or inclination angle45°In the above tunnels, PVC insulated thick steel wire armored PVC sheathed power cables and cross-linked polyethylene insulated thick steel wire armored PVC sheathed power cables should be used.
（2）In horizontal tunnels or inclined angles45°In the following tunnels, PVC insulated steel strip or fine steel wire armored PVC sheathed power cables, cross-linked ethylene steel strip or fine steel wire armored PVC sheathed power cables should be used.
（3）Aluminum core cables can be used in the air intake inclined shaft, underground parking lot and its vicinity, and between the central substation and the mining area substation; Copper core cables must be used in other locations.
（4）Fixed low-voltage cables should be installed usingMwArmored or unarmored cables or mobile rubber sheathed flexible cables of corresponding voltage levels.
（5）Non fixed high and low voltage cables must be installed in accordance withMr818Standard rubber sheathed flexible cable. Mobile and handheld electrical equipment should use rubber sheathed cables.
（6）Cables used for lighting, communication, signaling, and control should be armored communication cables, rubber sheathed cables, orFactory type plastic cable.
（7）Aluminum cores should not be used for low-voltage cables, and aluminum cores are strictly prohibited for low-voltage cables in mining areas.