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(N)TSCGEWOU 3.6/6kV, 6/10kV, 8.7/15kV and 12/20kV ZH Cable

The (N)TSCGEWOU 3.6/6kV, 6/10kV, 8.7/15kV, and 12/20kV ZH Cable is a halogen-free flexible medium voltage power cable designed in accordance with VDE 0250 standards for heavy-duty applications. It features Class 5 tinned copper conductors, EPR insulation, semi-conductive layers, and a copper braided earth conductor, with an inner and outer halogen-free polyurethane sheath that delivers excellent flame retardancy, low smoke emission, and high mechanical durability. Ideal for draglines, shovels, dredges, and drills in opencast mining or other extreme environments, this cable is suitable for both indoor and outdoor use where fire safety and robust performance are critical. Compliant with DIN VDE 0250 and IEC standards (IEC 60754, IEC 61034), it offers high flexibility, torsional strength, and EMC protection across voltage ranges. The (N)TSCGEWOU ZH is ideal for safe MV power delivery to mobile machinery such as shearers, tunnel boring equipment, and conveyors in underground mining where low-smoke, low-toxicity performance is essential.

Voltage Rating Uo/U 3.6/6kV | 6/10kV | 8.7/15kV | 12/20kV

Test Voltage 3.6/6kV: 11kV
6/10kV: 17kV
8.7/15kV: 24kV
12/20kV: 29kV

Temperature Rating Fixed: -50°C to +80°C
Flexed: -25°C to +80°C

Minimum Bending Radius Fixed: 6 x overall diameter
Flexed: 10 x overall diameter

Maximum Torsional Stress ±25°/m

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Construction

Technical Specifications

Quality Control

Application

Construction

(N)TSCGEWOU 3.6/6kV, 6/10kV, 8.7/15kV and 12/20kV ZH Cable Constrution

Phase Conductor

lass 5 tinned copper

Insulation

Rubber compound

Earth Conductor

Class 5 tinned copper conductor

Central Filler

Semi-conductive compound on a polyester textile support

Inner Sheath

Halogen-free polyurethane

Anti-Torsion Braid

Polyester braid between the inner and outer sheath

Outer Sheath

Halogen-free polyurethane

Sheath Colour

Yellow

Manufacturer Standard

VDE 0250 Part 813, HD 22.16 , VDE 0295, EN 60228

Flame Retardant

IEC/EN 60332-1-2

Halogen Free

IEC/EN 60754-1/2

Semi-Conductive Layers

Semi-conductive tape over the conductor and inner and outer
Semi-conductive rubber layer on the insulation

Application

(N)TSCGEWOU 3.6/6kV, 6/10kV, 8.7/15kV and 12/20kV ZH Cable is used for supplying power to heavy mobile equipment such as draglines, shovels, dredges, and drills operating under extreme mechanical stress in opencast mines. Its halogen-free polyurethane sheath makes it suitable for both indoor and outdoor environments requiring high flame safety and durability.

Technical Specifications

(N)TSCGEWOU 3.6/6kV, 6/10kV, 8.7/15kV and 12/20kV ZH Cable

(N)TSCGEWOU 3.6/6kV ZH Cable

(N)TSCGEWOU 6/10kV ZH Cable

(N)TSCGEWOU 8.7/15kV ZH Cable

(N)TSCGEWOU 12/20kV ZH Cable

No. Of Cores (PHASE+EARH)	Nominal Cross Sectional Area mm²		CONDUCTOR DIAMETER	MINIMUM OVERALL DIAMETER	MAXIMUM OVERALL DIAMETER	MAXIMUM TENSILE LOAD	NOMINAL WEIGHT
No. Of Cores (PHASE+EARH)	Phase Conductor	Earth Conductor	mm	mm	mm	N	kg/km
3+3	25	25/3	6.8	37.4	38.6	1500	2280
3+3	35	25/3	7.8	39	40.2	2100	2630
3+3	50	25/3	9.4	42.0	43.7	3000	3230
3+3	70	35/3	11.2	45.8	47.5	4200	4160
3+3	95	50/3	12.7	50	51.8	5700	5080
3+3	120	70/3	14.4	53.8	55.6	7200	6280
3+3	150	70/3	16.3	59.3	61.1	9000	7570
3+3	185	95/3	17.6	61.1	63.4	11100	8740

No. Of Cores (PHASE+EARH)	Nominal Cross Sectional Area mm²		CONDUCTOR DIAMETER	MINIMUM OVERALL DIAMETER	MAXIMUM OVERALL DIAMETER	MAXIMUM TENSILE LOAD	NOMINAL WEIGHT
No. Of Cores (PHASE+EARH)	Phase Conductor	Earth Conductor	mm	mm	mm	N	kg/km
3+3	25	25/3	6.8	37.4	39.2	1500	2320
3+3	35	25/3	7.8	39	40.8	2100	2670
3+3	50	25/3	9.4	42.0	44.3	3000	3270
3+3	70	35/3	11.2	45.8	48.1	4200	4200
3+3	95	50/3	12.7	50	52.4	5700	5120
3+3	120	70/3	14.4	53.8	56.3	7200	6320
3+3	150	70/3	16.3	59.3	61.8	9000	7610
3+3	185	95/3	17.6	61.1	64.1	11100	8780

No. Of Cores (PHASE+EARH)	Nominal Cross Sectional Area mm²		CONDUCTOR DIAMETER	MINIMUM OVERALL DIAMETER	MAXIMUM OVERALL DIAMETER	MAXIMUM TENSILE LOAD	NOMINAL WEIGHT
No. Of Cores (PHASE+EARH)	Phase Conductor	Earth Conductor	mm	mm	mm	N	kg/km
3+3	25	25/3	6.8	40.7	42.4	1500	2580
3+3	35	25/3	7.8	42.2	43.9	2100	2930
3+3	50	25/3	9.4	45.4	47.1	3000	3560
3+3	70	35/3	11.2	49.2	51	4200	4510
3+3	95	50/3	12.7	52.6	54.4	5700	5360
3+3	120	70/3	14.4	57.2	59	7200	6690
3+3	150	70/3	16.3	61.7	64	9000	7910
3+3	185	95/3	17.6	63.8	66.1	11100	9110

No. Of Cores (PHASE+EARH)	Nominal Cross Sectional Area mm²		CONDUCTOR DIAMETER	MINIMUM OVERALL DIAMETER	MAXIMUM OVERALL DIAMETER	MAXIMUM TENSILE LOAD	NOMINAL WEIGHT
No. Of Cores (PHASE+EARH)	Phase Conductor	Earth Conductor	mm	mm	mm	N	kg/km
3+3	25	25/3	6.8	43.3	45	1500	2810
3+3	35	25/3	7.8	44.8	46.5	2100	3160
3+3	50	25/3	9.4	47.9	49.6	3000	3810
3+3	70	35/3	11.2	51.7	53.5	4200	4780
3+3	95	50/3	12.7	55.1	56.9	5700	5660
3+3	120	70/3	14.4	59.6	61.9	7200	7020
3+3	150	70/3	16.3	64.2	66.5	9000	8250
3+3	185	95/3	17.6	66.3	68.6	11100	9460

Quality Control

(N)TSCGEWOU 3.6/6kV, 6/10kV, 8.7/15kV and 12/20kV ZH Cable

Raw Material Test

Raw Material Test for (N)TSCGEWOU 3.6/6kV, 6/10kV, 8.7/15kV, and 12/20kV ZH Cable focuses on ZH fire safety compliance. Steps include: Certification Verification: Tinned copper, EPR, and halogen-free rubber sheath meet VDE 0250/IEC specs for low halogen/low smoke. Conductor Testing: Tensile, elongation, conductivity, tin coating analysis. Insulation/Screen Evaluation: EPR dielectric/thermal; semi-conductive properties. ZH Sheath Checks: Halogen content (≤0.1% Cl/Br IEC 60754), smoke density (IEC 61034), flame retardancy, oil/abrasion resistance. Braid & Monitoring Validation: Coverage, strength, conductivity. Batch Rejection: Non-compliant (e.g., high halogen/smoke) quarantined. Approved materials ensure the (N)TSCGEWOU 3.6/6kV, 6/10kV, 8.7/15kV and 12/20kV ZH Cable's flexibility and ZH safety.

Process inspection

Process Inspection for (N)TSCGEWOU 3.6/6kV, 6/10kV, 8.7/15kV, and 12/20kV ZH Cable enforces ZH integrity. The procedure features: Stranding Control: Uniform tinned copper phases/control/monitoring. Extrusion Monitoring: Semi-conductive screens, EPR insulation with defect sensors. Screening: Precise copper braid application. ZH Sheath Extrusion: Halogen-free rubber applied; checks for contamination-free process. Ongoing Checks: Resistance, integrity, diameter, ZH sample testing. Correction: Immediate fixes. This guarantees the (N)TSCGEWOU 3.6/6kV, 6/10kV, 8.7/15k,V and 12/20kV ZH Cable excels in MV performance and low-smoke safety.

Finished Product

Finished Product Test validates the (N)TSCGEWOU 3.6/6kV, 6/10kV, 8.7/15kV and 12/20kV ZH Cable for deployment. Steps include: Inspection: Visual/dimensional/marking verification. Electrical: Resistance, insulation, withstand (11–29kV), partial discharge. ZH Durability: Halogen content, low smoke density, flame/toxicity tests. Mechanical: Bending, tensile, abrasion resistance. Performance: Oil/thermal aging verification. Release: Only passing (N)TSCGEWOU 3.6/6kV, 6/10kV, 8.7/15kV and 12/20kV ZH Cable approved for safe, low-toxicity mining MV use.

Application

Perfect for (N)TSCGEWOU 3.6/6kV, 6/10kV, 8.7/15kV and 12/20kV ZH Cable in underground mining trailing/reeling, tunnel boring with fire safety requirements, coal mining machinery, conveyor systems, and confined spaces prioritizing halogen-free, low-smoke, flame-retardant MV cable with monitoring.

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Power & Energy Industry

Transport Sector

Real Estate & Construction

Infrastructure & Municipal Industry

Data Centers

Mining and Oil & Gas Industry

Industrial Manufacturer

Technical Advantages

● 30+ years of manufacturing experience
● ISO and UL certified production
● Customized cable and transformer solutions

Conductor Stranded Work Shop

CCV Production Line

CCV production 01

Partical Voltage Test Labtoary

Auto-Winding Machine

Oil Chromatography Test Machine

Auto-core cutting machine

Basic Insulation Level Test Labtoary

Auto Laser Cutting Machine

Automatic Desanding Machine

Automatic Dryer Machine

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FAQ From Customers

What are the advantages of power cables and overhead lines?

(1) Reliable operation, because it is installed in a hidden place such as underground, it is less damaged by external forces, has less chance of failure, and the power supply is safe, and it will not cause harm to people;
(2) The maintenance workload is small and frequent inspections are not required;
(3) No need to erect towers;
(4) Help improve power factor.

Which aspects should be considered when choosing the cross section of a power cable?

(1) The long-term allowable working current of the cable;
(2) Thermal stability once short circuited;
(3) The voltage drop on the line cannot exceed the allowable working range.

What are the measures for cable fire prevention?

(1) Use flame-retardant cables;
(2) Use fireproof cable tray;
(3) Use fireproof paint;
(4) Fire partition walls and fire baffles are installed at cable tunnels, mezzanine exits, etc.;
(5) Overhead cables should avoid oil pipelines and explosion-proof doors, otherwise local pipes or heat insulation and fire prevention measures should be taken.

What should be paid attention to during the transportation and handling of cables?

(1) During transportation, loading and unloading, cables and cable reels should not be damaged. It is strictly forbidden to push the cable reels directly from the vehicle. Generally, cables should not be transported and stored flat.
(2) Before transporting or rolling the cable reel, ensure that the cable reel is firm, the cable is wound tightly, the oil pipe between the oil-filled cable and the pressure oil tank should be fixed without damage, the pressure oil tank should be firm, and the pressure indication should meet the requirements.

What inspections should be carried out for the acceptance of cable lines?

(1) The cable specifications should meet the regulations, the arrangement should be neat, no damage, and the signs should be complete, correct and clear;
(2) The fixed bending radius of the cable, the related distance and the wiring of the metal sheath of the single-core power cable should meet the requirements;
(3) The cable terminal and the middle head should not leak oil, and the installation should be firm. The oil pressure of the oil-filled cable and the meter setting should meet the requirements;
(4) Good grounding;
(5) The color of the cable terminal is correct, and the metal parts such as the bracket are completely painted;
(6) There should be no debris in the cable trench, tunnel, and bridge, and the cover should be complete.

How many projects can cable engineering be divided into?

(1) Construction site transportation: including the loading and unloading, transportation and empty vehicle return journey of engineering materials from the warehouse to the construction site.
(2) Local engineering: including road excavation, tunnel, trench construction, etc.
(3) Laying engineering: including laying, intermediate head production, lift cover plate, buried pipe, school tide, tractor head production, etc.
(4) Two-end engineering: including the production and installation of support, suspension bridge and its foundation, the production of terminal heads, the installation of oil pressure and signal devices, and the electrical performance testing of various types.
(5) Stopping works: including the production of oil-filled cable stop heads, the installation of fuel supply tanks, automatic drainage and signal devices, etc.
(6) Grounding engineering: including installation of insulation joints, transposition boxes, protectors, and grounding boxes.

What tests and inspections should be carried out on power cables before laying?

Before laying, check whether the type, specification and length of the cable meet the requirements and whether there is external force damage. Low-voltage cables use a 1000V megohmmeter to remotely measure the insulation resistance, and the resistance is generally not less than 10MΩ. High-voltage cables use a 2500V megger to measure the resistance. Generally not less than 400MΩ.

What are the factors that determine the long-term allowable current carrying capacity of the cable?

(1) The long-term allowable working temperature of the cable;
(2) The heat dissipation performance of the cable itself;
(3) The condition of the cable installation and the heat dissipation conditions of the surrounding environment.

According to the difference of insulation and protective layer, what are the main types of commonly used low-voltage power cables?

(1) Oil-impregnated paper insulated lead-clad (or aluminum-clad) power cable;
(2) Non-drip oil-impregnated paper insulated power cable;
(3) PVC insulated and sheathed power cable;
(4) Cross-linked PVC insulated and PE sheathed power cable;
(5) Cross-linked PVC insulated and sheathed power cable;
(6) Rubber insulated power cables.

What are the requirements for the fire blocking of cable holes?

For larger cable penetration holes, such as the cable penetration floor, etc., when using fireproof blocking materials to block, according to the actual situation, first coat four to six layers of fireproof paint on the cable surface, the length is about 1.5m below the hole, and then use fire-resistant The material is processed into a board-supporting fire-proof blocking material with a certain strength to ensure that it is firm after being blocked and is easy to disassemble and assemble when the cable is replaced. The plugging is dense and non-porous to effectively block smoke and fire.

What are the main properties of the insulation material of the power cable?

(1) High breakdown strength;
(2) Low dielectric loss;
(3) Very high insulation resistance;
(4) Excellent discharge resistance;
(5) It has certain flexibility and mechanical strength;
(6) Long-term insulation performance is stable.

What are the regulations for cable protection tubes?

(1) When the cable needs to be laid through a protective pipe, the inner diameter of the pipe should not be less than 1.5 times the outer diameter of the cable, and the inner diameter of the concrete pipe, clay pipe, asbestos, and cement pipe should not be less than 100mm;
(2) The bending radius of the cable tube should meet the requirements of the bending radius of the cable inserted;
(3) Each pipe should not exceed three elbows at most, and there should be no more than two right-angle bends.

How to measure the outer diameter of the cable sheath?

At five evenly distributed points on the circumference of the sheath, measure the outer diameter of the sheath and its average value. The average outer diameter is the outer diameter of the sheath.

How to connect copper core cables with different cross-sections?

Copper core cables with different cross-sections can be connected by open-back weak copper pipes and connected by soldering, or pure copper rods can be connected into copper pipes according to different cross-sectional requirements and connected by crimping.

What are the insulating materials used to make cable terminal heads or intermediate joints?

There are insulating glue, insulating tape, insulating tube, insulating gloves, insulating resin, etc.

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(N)TSCGEWOU 3.6/6kV, 6/10kV, 8.7/15kV and 12/20kV ZH Cable

Construction

Phase Conductor

Insulation

Earth Conductor

Central Filler

Inner Sheath

Anti-Torsion Braid

Outer Sheath

Sheath Colour

Manufacturer Standard

Flame Retardant

Halogen Free

Semi-Conductive Layers

Application

Technical Specifications

Quality Control

Raw Material Test

Process inspection

Finished Product

Application

Technical Advantages

Conductor Stranded Work Shop

CCV Production Line

CCV production 01

Partical Voltage Test Labtoary

Auto-Winding Machine

Oil Chromatography Test Machine

Auto-core cutting machine

Basic Insulation Level Test Labtoary

Auto Laser Cutting Machine

Automatic Desanding Machine

Automatic Dryer Machine

Product Packaging

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FAQ From Customers

Welcome your inquiry