Flexible Rubber Sheathed Coal Cutter Cables for Rated Voltage up to 1.9/3.3kV

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Electric Wire & Cable and Accessories: Rubber Sheathed Cable for General Purposes; Rubber Insulated Cables Used in Open Countr; Flame-retardant Rubber Sheathed Cables for Mining Purposes; PVC Insulated Cable for House Wiring; XLPE Insulated Power Cable; PVC Insulated Power Cable; Low-smoke Halogen-free Flame-retardant and Fire-resistant Cables; Control Cables; Overhead Conductors and Cables; Aluminum wire and ACSR; Special Cables; Elevator Cable

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Flame-retardant Rubber Sheathed Cables for Mining Purposes

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1. Application

This product is used as power supply connection cable for coal cutters or similar equipment of rated voltage 1.9/3.3kV and below.

Prev0.66/1.14kV Screened Coal Cutter Cable with Reinforced Layer and Monitoring Core

2. Guide to Use

The max. conductor temperature of 0.38/0.66kV cable in normal use is 90℃ and the sheath is black.

The max. conductor temperature of 0.66/1.14kV cable in normal use is 90℃ and the sheath is yellow.

The max. conductor temperature of 1.9/3.3kV cable in normal use is 90℃ and the sheath is black.

The min. bend diameter of the cables is 6 times cable diameter and the cable with yellow sheath can not be exposed to sunlight for a long time.

3. Code, Description and Usage

Code	Description	Usage
MC-0.38/0.66	0.38/0.66 kV rubber sheathed flexible coal cutter cable	Power supply connection cable for coal cutters and similar equipment of rated voltage 0.38/0.66 kV
MCP-0.38/0.66	0.38/0.66 kV rubber sheathed flexible coal cutter cable with screen	Power supply connection cable for coal cutters and similar equipment of rated voltage 0.38/0.66 kV
MCP-0.66/1.14	0.66/1.14 kV rubber sheathed flexible coal cutter cable with screen	Power supply connection cable for coal cutters and similar equipment of rated voltage 0.66/1.14 kV
MCP-1.9/3.3	1.9/3.3 kV rubber sheathed flexible coal cutter cable with screen	Power supply connection cable for coal cutters and similar equipment of rated voltage 1.9/3.3 kV

4. Sectional Drawing

5. Technical Particulars

1) MC-0.38/0.66, MCP-0.38/0.66

No. of Cores * Sectional Area (mm2)		Power Core Insulation Thickness (mm)	Sheath Thickness (mm)	Overall Diameter (mm)
No. of Cores * Sectional Area (mm2)				MC-0.38/0.66		MCP-0.38/0.66
Power Core	Earth Core			Min.	Max.	Min.	Max.
3*6	1*4	1.6	4.5	29.1	34.1	33	38
3*25	1*6	1.8	5.5	36	41	39	45
3*35	1*6	1.8	5.5	39	45	42.5	48.5
3*50	1*10	2.0	5.5	44	50.5	47.5	54.5
3*70	1*16	2.2	6.0	50	57.5	53	60.5
3*95	1*25	2.2	6.0	56	63.1	59.5	67
3*120	1*35	2.4	6.0	60.5	68.5	63.5	72

2) MCP-0.66/1.14

No. of Cores * Sectional Area (mm2)			Power Core Insulation Thickness (mm)	Sheath Thickness (mm)		Overall Diameter (mm)
No. of Cores * Sectional Area (mm2)						MCP-0.66/1.44
Power Core	Earth Core (Type A)	Earth Core (Type B)				Type A		Type B
Power Core	Earth Core (Type A)	Earth Core (Type B)		Type A	Type B	Min.	Max.	Min.	Max.
3*25	1*6		2.0	6		29.1	34.1	33	38
3*35	1*6	3*10/3	2.0	6	7	36	41	39	45
3*50	1*10	3*16/3	2.0	6	7.5	39	45	42.5	48.5
3*70	1*16	3*25/3	2.2	7	7.5	44	50.5	47.5	54.5
3*95	1*25	3*25/3	2.4	7	7.5	50	57.5	53	60.5
3*120	1*35	3*35/3	2.6	7	7.5	56	63.1	59.5	67
3*150	1*35	3*50/3	2.6	7	7.5	60.5	68.5	63.5	72

3) MCP-1.9/3.3

No. of Cores * Sectional Area (mm2)			Power Core Insulation Thickness (mm)	Sheath Thickness (mm)		Overall Diameter (mm)
No. of Cores * Sectional Area (mm2)						MCP-1.9/3.3
Power Core	Earth Core (Type A)	Earth Core (Type B)				Type A		Type B
Power Core	Earth Core (Type A)	Earth Core (Type B)		Type A	Type B	Min.	Max.	Min.	Max.
3*25	1*6		2.8	6		44.5	51.0
3*35	1*6	3*10/3	2.8	6	7	48.0	54.5	59	64
3*50	1*10	3*16/3	2.8	6	7.5	54.0	61.5	63	69
3*70	1*16	3*25/3	3.0	7	7.5	60.0	67.0	68	775
3*95	1*25	3*25/3	3.0	7	7.5	65.0	72.5	69	78
3*120	1*35	3*35/3	3.2	7	7.5	69.5	77.5	74	84.5
3*150	1*35	3*50/3	3.2	7	7.5	74.0	82.5	78.5	88

6. Technical Performance
1) The conductor resistance shall meet the following requirements

Power Core Sectional Area (mm2)	Max. conductor DC resistance at 20℃ (Ω/kM)	Power Core Sectional Area (mm2)	Max. conductor DC resistance at 20℃ (Ω/kM)
4	≥5.09	35	≥0.565
6	≥3.39	50	≥0.393
10	≥1.95	70	≥0.277
16	≥1.24	95	≥0.210
25	≥0.795	120	≥0.164

2) The insulation resistance meets the following requirements

Cores	Nominal Sectional Area (mm2)	Insulation Resistance at 20℃ (MΩ·kM)
Cores	Nominal Sectional Area (mm2)	0.66/1.14kV and below	1.9/3.3kV and below
Power Core	16	≥350
	25	≥300	≥450
	35	≥250	≥400
	50	≥250	≥350
	70	≥200	≥300
	95	≥200	≥250
	120	≥200	≥250
	150	≥180	≥250
Earth Core	2.5/4/6/10	≥100	≥100

3) Max. conductor temperature in normal use: 90℃.
4) Insulation tensile strength is over 6.5MPa, and has an elongation of over 200% at break.
5) Sheath tensile strength is over 11.0MPa, and has an elongation of over 250% at break.
6) 0.38/0.66kV cables can withstand a 3.0kV/5Min voltage test and no breakdown shall occur; 0.66/1.14kV cables can withstand a 3.7kV/5Min voltage test and no breakdown shall occur; 1.9/3.3kV cables can withstand a 6.8kV/5Min voltage test and no breakdown shall occur.
7) The flame-retardant performance of the cable meets all requirements of burn test in standard MT 386-1995.

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