Copper-cored plastic insulated power cables fixed-laying in coal mines

This kind of cable is suitable for use in fixed installation in transmission/distribution lines for rated voltages less than 10KV such as the place from central distribution chamber to the electromechanical chamber, movable transformer substation, comprehensive mining workshop and switchgear. The cable has the characteristic of high flame retardancy.

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Product Detail

Application

Parameters

Samples & Structures

Product Introduction

For the cables are used in the mining of complicated conditions and inclement environment, abounded with gas and smut, easily caused exposition, the insulated plastic flame retardant power cables not only have the properties mentioned in the first chapter of this manual, but also have the property of high flame retardant. Among them, the one whose maximum cross-sectional area is 50mm and above should pass through the combustion testing of A type Collecting Electric Wire & cable. If less than 50mm², it should pass through the combustion testing of B type collecting electric wire & cable.

Features

Copper-cored plastic insulated power cables fixed-laying in coal mines

1. High operating temperature

2. Strong service stability and fire resistance, effectively ensuring the service life of the cable.

3. Explosion proof

4. Small outer diameter

5. High mechanical strength

6. Large current carrying capacity

7. High corrosion resistance

This product is a fixed and fixed laying cable with rated voltage of 1KV and below for coal mines, and is suitable for power transmission in coal mines. Ensure the safety of equipment and power transmission in complex environment

This kind of cable is suitable for use in fixed installation in transmission/distribution lines for rated voltacesess than 10kV such as the place from central distribution chamber to the electromechanical chamber, movab-e transformer substation, comprehensive mining workshop and switchgear. The cable has the characteristic oinigh flame retardancy.

1 Colliery PVC insulated flame retardant power cable(MT818.12-1999)The specification and denomination sees Table2-1

Model	Name M Base
MVV	Colliery PVC insulated PVC sheathed power cable
MVV22	Colliery PVC steel tap armored insulated PVC sheathed power cable
MVV32	Colliery PVC thin steel wire arored insulated PVC sheathed power cable
MVV42	Colliery PVC thick steel wire armored insulated PVC sheathed power cable

The specifications of the cable as Table 2-2

Model	Number of Cores	Rated voltage (kV)
		0.6/1	1.8/3	3.6/6、6/6、6/10
		Nominal cross-sectional area (mm2)
MVV	3	1.5~300	10~300	10~300
MVV22	3	2.5~300	10~300	10~300
MVV32	3	-	-	16~300
MVV42	3	-	-	16~300
MVV	3+1	4~300	10~300	-
MVV22	3+1	4~300	10~300	-
MVV	4	4~185	4~185	-
MVV22	4	4~185	4~185	-

2.2The maximum temperature when normal operation and short circuit (the of maximum time should not exceed 5s) of
For PVC insulated flame retardant power cable 70℃, the maximum temperature should not exceed 160Cwhen short circuit. 90℃ for XLPE insulated flame retardant power cable, the maximum temperature shouldnot exceed 250℃ when short circuit.

2.3 The installation conditions Of the cables

2.3.1 The ambient temperature should not less than 0℃.

2.3.2 The minimum blend radiuses see Table 4-5

Item	Single core cable		Three-core cable
	Without armored	Armored	Without armor	Armored
The minimum blend radiuses of the cable as installation	20D	15D	15D	12D
The minimum blend radiuses close to the connectionbox and terminal cable	15D	12D	12D	10D
Annotation:D for the exterior diameter

2.4 The current-carying quantty of the cable is as same as the one of same specification and type (VV or YJY) in the first chapter of this manual

1.2 Colliery XLPE insulaed flame retardant power cable(M1818.13-999)

The specification and denomination sees Table2-3

Model	Name M Base
MYJV	Colliery XLPE insulated PVC sheathed power cable
MYJV22	Colliery XLPE steel tap armored insulated PVC sheathed power cable
MYJV32	Colliery XLPE thin steel wire arored insulated PVC sheathed power cable
MYJV42	Colliery XLPE thick steel wire armored insulated PVC sheathed power cable

Model	Number of Cores	Rated voltage (kV)
		0.6/1	1.8/3	3.6/6、6/6	6/10, 8.7/10
		Nominal cross-sectional area (mm2)
MYJV	3	1.5~300	10~300	10~300	25~300
MYJV22	3	4~300	10~300	10~300	25~300
MYJV32	3	4~300	10~300	16~300	25~300
MYJV42	3	4~300	10~300	16~300	25~300

2.2 Main properties

2.1 For the cables are used in the mining of complicated conditions and inclement environment, abounded with gas and smut, easily caused exposition,the insulated plastic flame retardant power cables not only have the properties mentioned in the first chapter of his manual, but also have the property of highame retardant. Among them, the one whose maximum cros-sectional area is 50mm and above should pass hrough The Combustion Testing 0f A Type Colecting Electric Wire 8 Cable. If less than 50mm2it should pass throughThe Combustion Testing Of B Type Collecting Electric Wire & Cable