PROTOLON(SMK) (N)TSCGEWOEU Medium Voltage Reeling Cable
PROTOLON(SMK) (N)TSCGEWOEU Medium Voltage Reeling Cable: A Robust Solution for Extreme Mechanical Stresses in Applications Like Container Cranes
PROTOLON(SMK) (N)TSCGEWOEU Medium Voltage Reeling Cable
Application:
Flexible medium voltage reeling cable with integrated fibre-optics for the combined transmission of energy and data, for application under high or extreme mechanical stresses, e.g. high travel speeds, dynamic tensile loads, multiple changes of direction into different planes, churning on running over rollers and torsional stresses. Mainly for mobile equipment, e.g. fast-moving container cranes and large moving equipment.
Global Data:
Brand PROTOLON(SMK)-LWL
Type designation (N)TSKCGEWOEU
Standard Based on DIN VDE 0250-813
Certifications / Approvals GOST-R
Notes on Installation:
Preparation of fibre-optics requires special skills and use of elaborate tools. It is therefore recommended that performance of this work is entrusted to our customer service (Factory assembly). Please provide the connection dimensions.
Design Features:
Conductor: Conductor and earth conductor made of electrolytic copper tinned, very finely stranded, class FS (refer also to DIN VDE 0295) Insulation: PROTOLON HS High grade special compound based on high-quality EPR (at least 3GI3); improved mechanical and electrical characteristics (refer also to DIN VDE 0207, Part 20).
Electrical Field Control: Inner semiconductive layer of EPR, outer semiconductive layer of modified NBR, capable of being stripped when cold and thus extremely easy to prepare (Easy Strip design)
Core Identification: Natural coloured insulation with black semiconductive layer
Optical Fiber: Fibre core diameter: 62.5, 50 or 9μm; diameter across the cladding: 125μm; diameter over the coating: 250μm. Design available with 6,12, 18 or 24 fibres. Fibre class: G50/125μm G62,5/125μm E9/125μm Type: Graded-index fibre Graded-index fibre Monomode fibre - Attenuation at 850 nm: <2,8 dB/km <3,3 dB/km - - Attenuation at 1310 nm: <0,8 dB/km <0,9 dB/km <0,4 dB/km - Attenuation at 1550 nm: - - <0,3 dB/km - Bandwidth at 850 nm: >400 MHz >400 MHz - - Bandwidth at 1300 nm: >1200 MHz >600 MHz - - Numerical aperture: 0,2 ± 0,02 0,275 ± 0,02 0,14 ± 0,02 - Chromatic dispersion at - - <3,5 ps/nm km 1300 nm: - Chromatic dispersion at - - <3,5 ps/nm km 1550 nm:
Fiber Coding: Specially developed color code for identification of the individual fibres
Fiber Covering: Hollow core with filling compound, Basic material: ETFE, Compound: 7YI 1, Natural color
Core Arrangement: Three core design with cradle separator in the centre, earth conductor splitted into 2 parts positioned in two interstices. Optical element: six tubes, laid up around a central support element, with one, two or three optical fibers in each, positioned in the third interstice.
Sheath System: PROTOFIRM Sandwich - double layer inner sheath: Special compound based on EPR, quality at least 5GM3, also served as water barrier, color: red;
Anti-torsion braid: Reinforced braid made of polyester threads, in a vulcanized bond between the sheaths, resulting in high strength of the sheath system;
PROTOFIRM Sandwich - double layer outer sheath: A sheath system with a unique combination of flexibility and robustness has been achieved through the use of a new sandwich structure.
Abrasion and tear-proof high grade rubber compounds based on PCP, quality at least 5GM5, colour: bright red/red.
Marking PROTOLON (SMK) LWL (N)TSKCGEWOEU (number of cores)x(cross-section) (rated voltage) (year of manufacture) (serial number)
Electrical Parameters
Rated voltage 3.6/6 kV
Max. permissible operating voltage AC 4.2/7.2 kV
Max. permissible operating voltage DC 5.4/10.8 kV
AC Test Voltage 11 kV
EMC This design exhibits an extremely low interference level as a result of use a symmetrical threecore design with very narrow manufacturing rates.
Data transmission: Special design with fibre-optics for trouble free data transmission at high data rates. Current Carrying Capacity description According to DIN VDE 0298, Part 4. Higher values are permissible in specific cases (please consult the manufacturer).
Chemical parameters:
Resistance to oil: Acc. to DIN EN 60811-404 and DIN VDE 0473-811-404, paragraph 10
Weather resistance: Unrestricted use outdoors and indoors, resistant to ozone, UV and moisture.
Water resistance: According to HD 2216
Thermal parameters: Max. permissible temperature at conductor 90 °C
Max. short circuit temperature of the conductor 250 °C
Ambient temperature for fixed installation min -50 °C ; max +80 °C
Ambient temperature in fully flexible operation min -35 °C ; max +80 °C
Mechanical Parameters
Max. tensile load on the conductor: 20 N/mm²
Max. tensile load on the conductor during acceleration: Up to 30 (acc. to DIN VDE 0298 part 3: 15 N/mm²) N/mm²
Torsional stress: ± 25 °/m
Min. bending radius Acc. to DIN VDE 0298 part 3
Min. distance with S-type directional changes 20 x D (cable diameter)
Travel speed: - Gantry (reeling operation): no restriction. For speeds beyond 240 m/min it is recommended to consult the cable manufacturer Additional tests: Reversed bending test, torsional stress test
What Makes the PROTOLON(SMK) (N)TSCGEWOEU Stand Out?
At its core, the PROTOLON(SMK) (N)TSCGEWOEU is a flexible medium voltage reeling cable engineered for environments where ordinary cables would fail. Based on the DIN VDE 0250-813 standard, it's certified with approvals like GOST-R, ensuring compliance in international markets. The cable's design prioritizes durability and performance, making it ideal for mobile equipment that experiences churning over rollers, high acceleration, and torsional twists up to ±25°/m.
The brand name "PROTOLON(SMK)" reflects its innovative sheath system—PROTOFIRM Sandwich—which combines flexibility with robustness. This double-layer inner and outer sheath, reinforced by an anti-torsion braid of polyester threads, creates a vulcanized bond that resists abrasion, tearing, and water ingress. The result? A cable that can operate unrestricted outdoors or indoors, resisting ozone, UV, moisture, and oil per DIN EN 60811-404 standards.
Conductors are made of finely stranded, tinned electrolytic copper (class FS per DIN VDE 0295), with insulation from high-grade EPR (ethylene propylene rubber) known as PROTOLON HS. This material offers superior mechanical and electrical properties, rated at least 3GI3. Electrical field control comes via inner and outer semiconductive layers—EPR inside and modified NBR outside—in an Easy Strip design for quick preparation.
The core arrangement is symmetrical: three power cores with a split earth conductor in the interstices, promoting low electromagnetic interference (EMC) due to tight manufacturing tolerances. For specialized needs, options include twisted shielded pairs, individually screened control elements, or fiber optics in the PROTOLON(SMK)-LWL variant.
Usage Scenarios: Where the Cable Shines
The PROTOLON(SMK) (N)TSCGEWOEU excels in scenarios demanding flexibility under duress. Primary applications include:
Port Operations: Fast-moving container cranes at seaports, where cables reel at high speeds (>240 m/min possible with consultation). The anti-torsion braid prevents twisting during multi-plane movements, ensuring uninterrupted power for automated systems.
Mining Equipment: Large mobile excavators and material handlers in open-pit or underground mines. Its high tensile strength (up to 30 N/mm² during acceleration) withstands dynamic loads, while weather resistance suits harsh, dusty environments.
Industrial Machinery: Gantry systems, crane installations, and other heavy-duty mobile equipment. The cable's EMC properties minimize interference, ideal for data-integrated setups.
In broader trends, as industries electrify for sustainability, this cable supports the shift to electric-powered machinery, reducing emissions in high-stress operations.
Frequently Asked Questions
What voltages does the PROTOLON(SMK) (N)TSCGEWOEU support? It ranges from 1.8/3 kV to 12/20 kV, with custom higher ratings available.
Is it suitable for outdoor use in harsh climates? Yes, with ambient temperatures down to -50°C fixed and resistance to UV, ozone, and water.
How does it handle mechanical stress? Max tensile of 30 N/mm² during acceleration, torsional stress ±25°/m, and tested for reversed bending.
Can it integrate data transmission? Special designs include shielded pairs or fiber optics for combined power and data.
What's the lifespan in high-speed applications? Designed for unrestricted gantry speeds; consult for >240 m/min, with reinforced sheaths extending durability.
Is it EMC-compliant? Yes, symmetrical design ensures low interference.
Where to source in South Africa? Through distributors like Powermite, specializing in cable reeling for mining and ports.
The PROTOLON(SMK) (N)TSCGEWOEU medium voltage reeling cable embodies innovation in cable technology, blending flexibility, strength, and reliability for the toughest jobs. In South Africa, where mining and ports drive economic growth amid trends like digitalization and sustainability, it offers a pathway to efficiency and resilience. As the industry evolves, this cable isn't just connecting power—it's powering progress. Whether in a bustling port or a remote mine, its technical edge ensures operations keep reeling forward.
