Rubber Sheathed Coal Mine Flexible Cable MC-0.38/0.66kV

Application

Electrical connection of coalcutter and similar equipments.

Manufacturing standard

MT818.2

Service Property Parameter

1. Rated voltage U0/U 0.38/0.66kV
2. The max temperature of conductor in normal operation is 65℃.
3. The minimum-bending radius of cable is 6 times of cable diameter.
4. Cables with yellow sheath can’t be exposed directly in the sunlight for long time.

Type & Description

Type	Description
MC-0.38/0.66kV	Flexible rubber-sheathed coalcutter cables
MCP-0.38/0.66kV	Flexible sceened rubber-sheathed coalcutter cables
MCP-0.66/1.14kV	Flexible sceened rubber-sheathed coalcutter cables
MCP-1.9/3.3kV	Flexible sceened rubber-sheathed coalcutter cables

Structural Sketch

Main technical indexes

1. 20’℃ D.C conductor resistance shall comply with thestipulations of GB/T3956
2. Insulation resistance should comply with the stiputations in the table.

Core type	Cross section area mm²	20℃ insulation resistance
Core type	Cross section area mm²	Rated voltage up to 0.66/1.14kV	Rated voltage 1.9/3.3kV
Power core	16	≥120	—
	25	≥120	—
	35	≥100	≥380
	50	≥100	≥350
	70	≥80	≥320
	95	≥80	≥280
Control core	—	≥100	≥100

3. Voltage test should comply with the stipulations in the table

Insulation core type	Rated voltage U0U(kV)	Power frequenay test voltage(kV)	Test time(min)
Power core	0.38/0.66	3.0	5
	0.66/1.14	3.7	5
	1.9/3.3	6.8	5
Control core	—	1.5	5

4. Flame retardance test:The methods of test and requiremenis shall be those specified in MT386.

MC-0.38/0.66 & MCP-0.38/0.66
No.of cores x section area (mm²)		Nominal thickness(mm)		Outer diameter of cable(mm)		Weight for reference kg/km		Ampacity at 20℃ (A)
Power core	Earth core	Power core	Sheath	MC-0.38/0.66	MCP-0.38/0.66	MC-0.38/0.66	MCP-0.38/0.66	MC-0.38/0.66	MCP-0.38/0.66
3×16	1×4	1.6	4.5	31.3~34.4	33.2~36.5	2070	2120	85	85
3×25	1×6	1.8	5.5	38.4~41.0	40.3~44.3	2860	2930	113	113
3×35	1×6	1.8	5.5	43.9~48.3	45.8~50.4	3270	3340	138	138
3×50	1×10	2.0	5.5	47.7~51.0	51.5~55.0	4260	4230	170	170

MCP-0.66/1.14
No.of cores x section area (mm²)			Nominal thickness(mm)			Outer diameter of cable(mm)		Weight for reference kg/km		Ampacity at 20℃ (A)
Power core	Earth core A	Earth core B	Power core	Sheath A	Sheath B	Type A	Type B	Type A	Type B	Type A	Type B
3×35	1×6	—	2.0	6.0	—	47.8~51.0	—	3560	—	150	—
3×50	1×10	3×16/3	2.2	7.0	7.5	53.5~58.9	59.0~63.0	4900	4960	185	185
3×70	1×16	3×25/3	2.2	7.0	7.5	58.9~63.0	63.8~70.2	5760	5770	230	230
3×95	1×25	3×35/3	2.4	7.0	7.5	64.9~71.4	68.7~75.6	6990	6880	280	280

MCP-1.9/3.3
No.of cores x section area (mm²)			Nominal thickness(mm)			Outer diameter of cable(mm)		Weight for reference kg/km		Ampacity at 20℃ (A)
Power core	Earth core A	Earth core B	Power core	Sheath A	Sheath B	Type A	Type B	Type A	Type B	Type A	Type B
3×35	1×16	3×16/3	2.8	6.0	6.0	52.1~56.8	60.0~63.0	4000	4245	150	150
3×50	1×25	3×25/3	2.8	7.0	7.5	56.4~62.0	63.8~70.2	5290	5320	185	185
3×70	1×35	3×35/3	3.0	7.0	7.5	62.7~69.0	69.0~75.9	6320	6370	228	228
3×95	1×50	3×50/3	3.0	7.0	7.5	67.8~74.6	73.1~78.0	7450	7350	278	278

Rubber Sheathed Coal Mine Flexible Cable MC-0.38/0.66kV