1x4x7/0.43 specification MHYV mining communication cable

1x4x7/0.43 specification MHYV mining communication cable

Coal mine underground cables are divided into multiple series based on their purpose, voltage level, and structural characteristics, mainly complying with national standards such as MT818 and GB12972. The following are common models and their technical characteristics:

1、 Communication signal cable

MHYV: Polyethylene insulated polyvinyl chloride sheathed communication cable, used for ordinary signal transmission (fixed laying).

MHYVP: Polyethylene insulated copper wire braided shielded polyvinyl chloride sheathed cable, suitable for strong electric field interference environments.

MHY32: Polyethylene insulated steel wire armored polyvinyl chloride sheathed cable, used for high mechanical strength scenarios such as vertical shafts and inclined shafts.

2、 Control cable

MKVV: PVC insulated PVC sheathed control cable, suitable for fixed laying control circuits.

MKVVRP: A soft control cable with copper wire shielding, used for signal transmission of mobile equipment such as coal mining machines.

3、 Rubber sheathed flexible cable

MCP: Shielded rubber sheathed flexible cable for coal mining machines, rated voltage 0.38/0.66kV, containing tin plated copper conductors.

MYP: Mobile shielded rubber sheathed cable, suitable for power connection of 0.66/1.14kV coal mining machine.

MYQ: Rubber sheathed cable for electric drills, with a voltage resistance of 0.3/0.5kV and a conductor cross-sectional area of 1.0-2.5mm2.

4、 Branch cable

MY type branch cable: main core 3-4 cores, branch line 2-3 cores, used for tunnel lighting scenes.

5、 Technical standards and naming conventions

Naming convention: The model consists of 8 parts, such as M (for coal mines), K (for control cables), V (for PVC insulation/sheath), P (for shielding), etc.

Execution standards: MT818.14-1999 (communication cable), GB12972.2-91 (rubber sheathed cable).

6、 Selection suggestions

Strong interference environment: Priority should be given to cables with shielding layers (such as MHYVP, MKVVRP) or armor (such as MHY32).

Mobile devices: require flexible cables (such as MYP, MYQ) with a bending radius of ≥ 6 times the outer diameter.

Safety certification: All mining cables must be certified with the MA mark.

1x4x7/0.43 specification MHYV mining communication cable

MHYV series

MHYV-1x4x7/0.37: Communication cable for coal mines, with polyethylene insulation and polyvinyl chloride sheath, suitable for mine signal transmission, in accordance with MT818.14-1999 standard. 1x4x7/0.43； 1x4x7/0.52。

MKVV series

MKVV-450/750V: Mining control cable, copper core PVC insulation, with 2-37 cores and a cross-sectional area of 0.5-4mm2.

5、 Special structure cable

MZ/MZP-0.3/0.5kv: Shielded cable for electric drills, conductor tinned copper wire, chloroprene rubber sheath, oil resistant and flame-retardant.

WD-MKYJYP: halogen-free low smoke control cable, copper wire braided shielding, suitable for high interference environments.

6、 Example of specification parameters

modelVoltage level (kV)typical specificationsApplicable scenarios

MYP-0.66/1.14kV0.66/1.143×50+1×16Coal mining machine power connection

MYPT-3.6/6kV3.6/63×95+1×35Underground mobile transformer

MHYV-1x4x7/0.52 Mine Communication System

Note: Specific selection should be based on coal mine safety certification (such as MA mark) and installation environment requirements.