PROTOLON(M)-R FO Medium Voltage Reeling Cable with Integrated Fiber-optics

Exploring the Feichun PROTOLON(M)-R FO Medium Voltage Reeling Cable with Integrated Fiber-Optics for Enhanced Efficiency, Reliability, and Safety in Harsh Environments

Category

Parameter

Details

Application

For connection of large material handling machines such as excavators, dumpers, mobile crushers in open-cast mines. Flexible MV reeling cable suitable for high mechanical stresses with mono-spiral and cylindrical reels.

Global Data

Brand 

Feichun PROTOLON(M)-R LWL

Type Designation

R-(N)TSCGEWOEU

Standard

Based on DIN VDE 0250-813

Certifications / Approvals

MSHA P-189-4, Fire Certificate of Russian Federation, GOST K, GOST B

Notes on Installation

Suitable material sets for self-assembly. Termination of fiber-optics requires special skills and elaborate tools. Recommended to entrust assembly to customer service at the manufacturer's plant. Provide connection dimensions.

Design Features

Conductor

Electrolytic copper, not tinned, very finely stranded (class FS)

Insulation

PROTOLON, Basic material: EPR, Compound type: Special compound, better 3GI3

Electrical Field Control

Inner and outer layer of semiconductive rubber compound

Core Identification

Natural coloring with black semiconductive rubber, white digits 1 to 3 printed

Core Arrangement

Three-core design, protective-earth conductor split into two, fiber-optic element in outer interstices

Inner Sheath

Basic material: EPR, Compound type: Special compound type 5GM3

Reinforcement

Braid of polyester threads in a vulcanized bond between inner and outer sheath

Outer Sheath

Basic material: Synthetic elastomer compound (e.g., CR), Compound type: Special compound, Color: Red

Optical Fiber

Inner Core Diameter

9 μm, 62.5 μm, or 50 μm

Diameter Over Cladding

125 μm

Diameter Over Coating

250 μm

Designs

Up to 24 fibers available

Fiber G50/125

Attenuation at 850 nm: <2.8 dB/km
Attenuation at 1310 nm: <0.8 dB/km
Bandwidth at 850 nm: >400 MHz
Bandwidth at 1300 nm: >1200 MHz
Numerical Aperture: 0.20 ± 0.02

Fiber G62.5/125

Attenuation at 850 nm: <3.3 dB/km
Attenuation at 1310 nm: <0.9 dB/km
Bandwidth at 850 nm: >400 MHz
Bandwidth at 1300 nm: >600 MHz
Numerical Aperture: 0.275 ± 0.02

Fiber E9/125

Attenuation at 1310 nm: <0.4 dB/km
Attenuation at 1550 nm: <0.3 dB/km
Numerical Aperture: 0.14 ± 0.02
Chromatic Dispersion at 1300 nm: <3.5 ps/nm·km
Chromatic Dispersion at 1550 nm: <3.5 ps/nm·km

Fiber Coding

Color coding of fibers and buffering tube for identification

Fiber Covering

Hollow core with filling compound, Basic material: ETFE, Compound: 7YI 1, Natural color

Arrangement of Fiber Optic Elements

Six cores in one layer, laid-up around the supporting element

Chemical Parameters

Resistance to Fire

EN 60332-1-2, IEC 60332-1-2

Resistance to Oil

EN 60811-404, IEC 60811-404

Weather Resistance

Unrestricted use outdoors and indoors, resistant to ozone, UV, and moisture

Thermal Parameters

Max. Permissible Temperature at Conductor

90 °C

Max. Short Circuit Temperature of Conductor

250 °C

Ambient Temperature for Fixed Installation

Min: -40 °C, Max: 80 °C

Ambient Temperature in Fully Flexible Operation

Min: -35 °C, Max: 60 °C

Mechanical Parameters

Max. Tensile Load on Conductor

20 N/mm²

Max. Tensile Load During Acceleration

25 N/mm²

Torsional Stress

100 °/m

Bending Radii

Min: According to DIN VDE 0298 part 3

Minimum Distance with S-type Directional Changes

20 x D

Travel Speed

In operation: up to 60 m/min
On rewinding: up to 100 m/min

Additional Tests

Reversed bending test, torsional stress test, roller bending test (type C)

Rated Voltage 14/25 kV

Number of Cores x Cross Section

Conductor Diameter Max (mm)

Outer Diameter Min (mm)

Outer Diameter Max (mm)

Net Weight Approx (kg/km)

Permissible Tensile Force Max (N)

Conductor Resistance at 20°C Max (Ω/km)

Nominal Operating Capacitance (µF/km)

Inductance Nominal (mH/km)

Current Carrying Capacity (A)

Short Circuit Current (Conductor) (kA)

3x25 + 2x25/2 + FO

7.1

47.9

50.9

3360

1500

0.78

0.2

0.38

139

3.58

3x25 + 2x50/2 + FO

7.1

47.9

50.9

3440

1500

0.78

0.2

0.4

139

3.58

3x35 + 2x25/2 + FO

8.4

51.5

55.5

4050

2100

0.554

0.22

0.36

172

5.01

3x35 + 2x50/2 + FO

8.4

51.5

55.5

4130

2100

0.554

0.22

0.36

172

5.01

3x50 + 2x25/2 + FO

10.1

55.2

59.2

4830

3000

0.386

0.26

0.34

215

7.15

3x50 + 2x50/2 + FO

10.1

55.2

59.2

4900

3000

0.386

0.26

0.34

215

7.15

3x70 + 2x35/2 + FO

11.8

58.8

62.8

5840

4200

0.272

0.28

0.32

265

10.01

3x70 + 2x50/2 + FO

11.8

58.8

62.8

5950

4200

0.272

0.28

0.32

265

10.01

3x95 + 2x50/2 + FO

13.8

64.4

68.4

7280

5700

0.206

0.31

0.31

319

13.6

3x120 + 2x70/2 + FO

15.5

68.0

72.0

8530

7200

0.161

0.35

0.3

371

17.16

3x150 + 2x70/2 + FO

17.4

73.4

77.4

10080

9000

0.129

0.37

0.29

428

21.45

3x185 + 2x95/2 + FO

19.2

77.3

81.3

11630

11100

0.106

0.4

0.28

488

26.46

3x240 + 2x120/2 + FO

22.1

84.7

89.7

14690

14400

0.08

0.45

0.27

574

34.32

3x300 + 2x150/2 + FO

24.7

90.2

95.2

17310

18000

0.064

0.5

0.26

665

42.9

Notes:

  • Current carrying capacity is based on an ambient temperature of 30°C.

  • "FO" in the core configuration refers to fiber optic elements. The number of fibers and fiber mode (e.g., single-mode or multi-mode) are not specified in the provided data and would require additional information from the cable manufacturer or specification sheet to determine.

Understanding the Core of PROTOLON(M)-R FO:

Feichun PROTOLON(M)-R FO is a flexible medium voltage reeling cable tailored for high mechanical stresses, particularly in conjunction with mono-spiral or cylindrical reels. Its primary applications span large material handling equipment in open-cast mines, where it powers and connects excavators for digging, dumpers for hauling massive loads, and mobile crushers for on-site material processing. Beyond these, it's ideal for critical infrastructure in automated mining systems and control stations, where simultaneous power delivery and data transmission are non-negotiable.

What sets this cable apart is its unique value proposition. By combining medium voltage power conductors with fiber-optic elements, it simplifies installation and minimizes the number of cables needed on-site. This integration leads to exceptional durability under extreme conditions—think vibrations from heavy machinery, torsional stresses during reeling, and exposure to dust, moisture, and temperature swings. The fiber-optic capabilities ensure fast, reliable data transmission, supporting everything from remote monitoring to real-time control of mining equipment. In an era where mining operations demand optimized efficiency, this hybrid design reduces downtime, cuts infrastructure costs, and enhances overall reliability.

For instance, in open-cast mining, where equipment moves dynamically across vast terrains, the PROTOLON(M)-R FO's flexibility allows it to withstand repeated bending and acceleration without compromising performance. Its design supports high-speed operations, making it a go-to for environments where traditional cables might falter.

Performance Capabilities: Mechanical, Thermal, and Operational Excellence

Performance is where the PROTOLON(M)-R FO truly shines. Mechanically, it's built for the rigors of mining: it handles operating speeds up to 60 m/min and rewinding at 100 m/min, surviving reversed bending, torsional, and roller tests. This resilience is crucial in scenarios like excavator operations, where cables are constantly reeled and unreeled.

Thermally, the cable operates reliably with a maximum conductor temperature of 90°C and short-circuit tolerance up to 250°C. Its ambient temperature range spans -40°C to 80°C for fixed installations and -35°C to 60°C for flexible use, making it suitable for South Africa's varied climates—from the scorching summers in the Northern Cape's diamond mines to cooler underground conditions in gold shafts.

Environmentally, it boasts fire resistance (EN 60332-1-2), oil resistance (EN 60811-404), and weather-proofing against ozone, UV, and moisture. These features mitigate risks in mining sites prone to fires, chemical spills, or outdoor exposure.

Compliance, Certifications, and Environmental Resistance

Safety and standards are paramount in mining cable technology. The PROTOLON(M)-R FO adheres to DIN VDE 0250-813, with approvals like MSHA P-189-4 for mine safety, Russian Federation Fire Certificate, and GOST K/B for international compliance. These ensure it's deployable globally, including in regulated markets like South Africa, where mining authorities emphasize worker safety and environmental protection.

Its environmental resistance extends beyond basics: the outer sheath's CR compound repels oils and abrasives, while the overall design protects against moisture ingress, crucial in humid underground mines. This not only prolongs lifespan but also aligns with ESG (Environmental, Social, and Governance) trends, reducing waste from frequent replacements.

Installation, Maintenance, and Reliability

Installing the PROTOLON(M)-R FO is straightforward, with options for self-assembly using compatible material sets. However, fiber-optic termination demands precision—special tools and skills are required, so Feichun recommends factory termination for optimal performance, including custom connection dimensions.

Maintenance involves regular inspections: checking electrical and optical signals, assessing mechanical strain, and monitoring environmental exposure. With high-quality materials like EPR insulation and ETFE protection, the cable's longevity is impressive, often outlasting traditional alternatives through proper protocols.

Comparative Advantages Over Traditional Cables

Compared to conventional mining cables, the PROTOLON(M)-R FO stands out. Traditional setups require separate power and data lines, increasing complexity, weight, and failure points. This hybrid reduces cabling by up to 50%, lowering installation costs and simplifying reels. Its enhanced durability cuts downtime—vital when machinery idles cost thousands per hour. Fiber-optics provide superior bandwidth over copper data lines, enabling advanced applications like AI-driven predictive maintenance.

In terms of efficiency, the integrated design supports seamless automation, aligning with industry shifts toward smart mining. Reliability in harsh environments means fewer repairs, translating to cost savings and safer operations.