Mkvv mining Control cable![](https://img3.bmlink.com/big/supply/2023/9/6/11/638295950899680129.jpg)
![](https://img3.bmlink.com/big/supply/2023/9/6/11/638295950835178271.jpg)
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1. Mine control Cable Executive standard: MT818-1999??
2. Use of flame-retardant control cable for mining: This product is applicable to control and monitoring circuits and protection circuits with AC rated voltage u0/u of 450/750V and below, and the connecting wires of electrical instruments in power distribution devices.
3. Model, specification and scope of mining control cable: model, specification and scope of mining control cable
MKVV, MKVVP, MKVVP2 0.5-10mm2,2-61 cores are applicable to weak current control system or strong electromagnetic field interference area
MKVV22, MKVV20 0.5-10mm2,4-61 core MKVV32, MKVV30 0.5-10mm2,7-61 core
MKVVR 0.5-6mm2,2-61 core MKVVRP 0.5-4mm2,2-61 core
MKVVP22, MKVVP2-22 1.5-10mm2,4-61 core Mkvv mine control cable
MKVVP2-22-1 1.5-10mm2,4-61 core is mainly used for 500KV substation and power plant distribution equipment and strong electromagnetic field interference area
MKVV-1, MKVV22-1 0.5-10mm2,2-61 core Mkvv mine control cable
4. Usage characteristics: the long-term allowable working temperature of the control cable conductor for coal mine is 70 ℃, and the cable laying temperature should not be lower than 0 ℃. Allowable bending radius of control cable for coal mine: the cable with armored or copper tape shield structure shall not be less than 12 times of the outer diameter of the cable. For the flexible cable with shielding layer structure, it shall not be less than 6 times of the outer diameter of the cable. For the cable without armor layer, it shall not be less than 6 times of the outer diameter of the cable.
Mine control cable model: MKVV MKVV22 MKVV32 MKVVR MKVVP
1. Executive standard of mining control cable: MT818-1999
2. Use of control cable for coal mine: This product is applicable to control and monitoring circuits and protection circuits with AC rated voltage U0/U of 450/750V and below, and the connection lines of electrical instruments in power distribution devices.
3. Application occasions of control cable for coal mine
MKVV MKVVP MKVVRP MKVVR 0.5-10mm2,2-61 core is applicable to weak current control system or strong electromagnetic field interference area
MKVV22 MKVV32 0.5-10mm2,2-61 core
Strong electromagnetic field interference area
4. Main technical performance and index
DC resistance of conductor at 20 ℃ Ω/km 0.75mm? ≤ 24.5 1.0mm? ≤ 18.1 1.5mm? ≤ 12.1 2.5 mm?≤ seven point four one
Insulation resistance of cable insulation core at 20 ℃ M Ω. km ≥ 60
Withstand AC power frequency voltage 3.0KV/5min passing
Application characteristics of mine control cable
The allowable working temperature of conductor is - 40~50 ℃;
Average relative humidity ≤ 95% (at 25 ℃)
The temperature allowed for attachment and installation shall not be more than - 10 ℃
Usage characteristics: the allowable working temperature of control cable conductor for coal mine is 70 ℃, and the cable laying temperature shall not be lower than 0 ℃.
Allowable bending radius of control cable for coal mine: the cable with armored or copper tape shield structure shall not be less than
12 times. For the flexible cable with shielding layer structure, it shall not be less than 6 times of the outer diameter of the cable. For cables without armor layer
6 times the outer diameter of the cable