(N)GRDGCGOEU Low Voltage Screened Festoon Cable | Flexible Power & Control Cable for Gantry Cranes & Material Handling | DIN VDE 0250-814 Compliant | VDE & GOST-R Certified
Application | For use on festoon systems, e.g., gantry cranes, hall gantry cranes, rack material handling equipment, transportation systems, or machine tools. Especially suitable where power cables may interfere with data cables or where maximum emission values according to EN 55011/55022 must be achieved. Used under high mechanical stresses and frequent bending. Also suitable as flexible motor power supply cable. |
Type Designation | (N)GRDGCGOEU-J |
Standard | Based on DIN VDE 0250-814 |
Certifications / Approvals | VDE Reg. Nr. 7841; GOST-R |
Notes on Installation | - Short-circuit current can occur between phase conductor and screen/protective conductor due to external damage. Only the cross-section of the screen or protective conductor carries the fault current. Resistance depends on distance to ground connection. - For festoon application, cross-sections beyond 3x50 mm² are not recommended. |
Design Features | Conductor: Bare electrolytic copper, finely stranded, class 5. Earth conductor: tinned, extremely finely stranded copper, class FS. Insulation: high-grade EPR (at least GI3), improved mechanical and electrical characteristics. Core Identification: Light-colored insulation with black numbers; earth conductor green/yellow. Core Arrangement: Up to 10 mm²: 4-core design; from 16 mm²: three main conductors, earth conductor split into three parts in interstices. Inner Sheath: EPR, compound type GM1b, black. Screen over Inner Sheath: Braid of tinned copper, >80% coverage, transfer impedance <100 mΩ/m at ≤30 MHz. Outer Sheath: PCP, rubber compound 5GM3, black. |
Electrical Parameters | Rated voltage: 0.6/1 kV (600/1000 V) Max. AC operating voltage: 0.7/1.2 kV Max. DC operating voltage: 0.9/1.8 kV AC Test Voltage: 5 kV (5 min) Peak Voltage: 2400 V Max. AC voltage for frequency converter connection: 690 V EMC: Main application due to special cable design Current carrying capacity: According to DIN VDE 0298-4 |
Chemical Parameters | Resistance to oil: DIN EN 60811-404 & DIN VDE 0473-811-404, para. 10 Weather resistance: Suitable for outdoor/indoor use; resistant to ozone, UV, moisture |
Thermal Parameters | Max. conductor temperature: 90 °C Max. short-circuit temperature: 250 °C Ambient temperature (fixed installation): -50 °C to +80 °C Ambient temperature (flexible operation): -35 °C to +80 °C |
Mechanical Parameters | Max. tensile load on conductor: 15 N/mm² Torsional stress: Not allowed Min. bending radius: According to DIN VDE 0298 part 3 Travel speed (trolley/festoon): up to 240 m/min Note: Consult manufacturer for speeds beyond 240 m/min due to influence of space, cable weight, loop length, number of motor-driven carriers. Additional tests: Bending test |
In modern industrial and logistics operations, reliable and efficient cable systems are essential to ensure uninterrupted power supply and control for moving equipment. One cable that has gained recognition for its robustness, flexibility, and low electromagnetic interference is the (N)GRDGCGOEU Low Voltage Screened Festoon Cable. Designed specifically for festoon systems, gantry cranes, hall cranes, material handling equipment, and similar applications, this cable combines advanced materials, precise engineering, and compliance with international standards such as DIN VDE 0250-814.
How Does the Cable Perform in Extreme Conditions?
The (N)GRDGCGOEU cable is engineered for industrial environments with high mechanical stresses, temperature extremes, and chemical exposure:
Temperature Resistance: -50°C to +80°C for fixed installation; -35°C to +80°C for fully flexible operation. Maximum conductor temperature 90°C, short-circuit temperature 250°C.
Mechanical Strength: Max tensile load of 15 N/mm². Not suitable for torsional stress.
Chemical and Environmental Resistance: Complies with DIN EN 60811-404 for oil resistance, and is resistant to UV, ozone, and moisture, making it suitable for indoor and outdoor applications.
These specifications make the cable ideal for Indonesian industrial conditions, including tropical humidity, heat, and outdoor crane operations.
Where Can the (N)GRDGCGOEU Cable Be Applied?
The cable is primarily used in festoon systems, where a cable moves along with trolleys, cranes, or other movable equipment. Specific applications include:
Gantry Cranes & Hall Cranes: Provides power and control signals to the crane motors, hoists, and sensors.
Rack Material Handling Equipment: Ensures reliable energy supply for conveyor systems and automated warehouse robots.
Machine Tools & Manufacturing Lines: Enables smooth operation of movable machine components.
Transportation Systems: Suitable for automated guided vehicles (AGVs) and trolley-based power systems.
Key advantage: Its screened design prevents EMI, which is essential in factories where sensitive data cables coexist with high-power cables.
How Does the Cable Compare with Other Festoon Cables?
To help engineers select the right cable, here’s a comparison between (N)GRDGCGOEU and a standard (N)GRDGOEU festoon cable:
Feature | (N)GRDGCGOEU | (N)GRDGOEU |
|---|---|---|
Screened Design | Yes, tinned copper braid (>80% coverage) | Optional, less effective |
EMI Performance | Excellent, complies with EN 55011/55022 | Moderate |
Max Bending Radius | As per DIN VDE 0298 | Similar |
Max Operating Voltage | 0.6/1 kV | 0.6/1 kV |
Mechanical Strength | High, FS class earth conductor | High, class 5 earth conductor |
Suitable for Data-Intensive Environments | Yes | Limited |
This comparison highlights why the screened (N)GRDGCGOEU cable is preferred in industrial applications where EMI could disrupt control or data systems.
What Are Use Cases in Indonesia?
In Indonesia, industrial growth in ports, mining, and manufacturing has increased demand for flexible and durable festoon cables. Some notable examples include:
Jakarta Port Container Cranes: (N)GRDGCGOEU cables supply power to crane trolleys and gantries, ensuring uninterrupted operation during heavy-duty container handling.
Surabaya Manufacturing Plant: Material handling systems with automated guided vehicles rely on screened cables to avoid interference with control and data lines.
Mining Operations in Kalimantan: The cable powers mobile hoists and conveyor systems in humid, dusty, and high-temperature conditions.
These use cases demonstrate the cable’s adaptability to harsh environmental conditions while maintaining reliable performance.
How Should the (N)GRDGCGOEU Cable Be Installed?
Proper installation is critical to maximize performance and cable life:
Festoon Loops: Ensure the cable loop allows free movement without torsion.
Avoid Oversized Cross-Sections: Do not exceed 3×50 mm² for festoon applications; larger cross-sections reduce flexibility and increase mechanical strain.
Grounding: Correctly connect the screen and earth conductor to avoid short-circuit issues.
Bending Radius: Respect the minimum bending radius per DIN VDE 0298 part 3.
Speed Considerations: Festoon trolleys can travel up to 240 m/min, but consult the manufacturer for higher speeds.
Frequently Asked Questions (FAQ)
Can the (N)GRDGCGOEU Cable Replace Older Festoon Cables?
Yes, it can replace older or unscreened cables, especially where EMI or high mechanical stress was causing failures.
What Is the Maximum Current Capacity?
Depends on core configuration. For example:
4×6 mm²: 56 A
3×50+3×10 mm²: 212 A
Refer to the technical table for all configurations.
Can This Cable Be Used Outdoors in Indonesia?
Absolutely. It is UV, ozone, and moisture resistant, suitable for tropical climates and outdoor industrial settings.
What Is the Difference Between Screened and Unscreened Festoon Cables?
Screened cables like (N)GRDGCGOEU prevent electromagnetic interference (EMI), which is critical in environments with data lines and sensitive control equipment.
How Often Should the Cable Be Inspected?
Monthly visual inspections are recommended for wear, abrasion, and proper loop operation, with full electrical testing annually.
Why Choose (N)GRDGCGOEU Over Competitors?
Superior EMI Protection: Ensures data and control integrity.
High Flexibility: Supports frequent bending in heavy-duty crane applications.
Durability: Resistant to oil, UV, moisture, and temperature extremes.
Global Certification: Compliant with DIN VDE, VDE, and GOST-R standards.
