(N)GRDGCGOEU Screened Energy Chain Cable is a 0.6/1 kV flexible cable for demanding energy-chain installations. It combines finely stranded copper conductors, an overall tinned-copper braid screen and a robust black outer sheath for motion-intensive industrial equipment.
For container cranes, stacking cranes, indoor cranes and material-handling systems, the screened construction helps support stable operation where long travel distances, high movement speeds and abrasion exposure are expected. The cable is intended for cable-chain use; final selection should consider the chain design, travel length, bending radius, speed and installation conditions.
Key Construction Features
- Conductor: bare electrolytic copper, Class 5 fine-stranded; the earth conductor is extra-fine stranded.
- Insulation: high-grade EPR-based compound; ETFE insulation is available for specified control-cable constructions.
- Screen: tinned copper wire braid with more than 80% coverage and transfer impedance below 100 mΩ/m at up to 30 MHz.
- Inner sheath: black EPR-based compound.
- Outer sheath: black EVA-based compound selected for abrasion and ageing resistance.
Electrical and Environmental Performance
| Parameter | Value |
|---|---|
| Rated voltage Uo/U | 0.6/1 kV (600/1000 V) |
| Maximum AC operating voltage | 0.7/1.2 kV |
| Maximum DC operating voltage | 0.9/1.8 kV |
| AC test voltage | 3.5 kV for 5 minutes |
| Maximum conductor temperature | 90 °C |
| Short-circuit conductor temperature | 250 °C |
| Fixed installation temperature | -50 °C to +80 °C |
| Flexible operation temperature | -35 °C to +80 °C |
| Maximum tensile load on conductor | 15 N/mm² |
| Travel speed in chain systems | Up to 240 m/min, subject to system conditions |
Screened Multicore Configurations
The following examples are screened multicore power configurations. Current ratings are nominal values for rubber cables laid on a surface at 30 °C ambient temperature; confirm the final design against the actual installation and applicable standards.
| Configuration | Outer diameter (min–max) | Free moving bend radius (min.) | Approx. weight | Current capacity |
|---|---|---|---|---|
| 4 × 2.5 mm² screened | 11.2–13.2 mm | 66 mm | 310 kg/km | 30 A |
| 4 × 4 mm² screened | 15.2–17.2 mm | 86 mm | 490 kg/km | 41 A |
| 4 × 6 mm² screened | 17.0–19.0 mm | 95 mm | 650 kg/km | 53 A |
| 4 × 10 mm² screened | 19.2–21.2 mm | 106 mm | 870 kg/km | 74 A |
| 3 × 16 + 3 × 2.5 mm² screened | 20.3–22.3 mm | 112 mm | 1,050 kg/km | 99 A |
| 3 × 25 + 3 × 4 mm² screened | 25.7–28.7 mm | 144 mm | 1,610 kg/km | 131 A |
| 3 × 35 + 3 × 6 mm² screened | 28.4–31.4 mm | 157 mm | 2,140 kg/km | 162 A |
| 3 × 50 + 3 × 25/3 mm² screened | 34.9–37.9 mm | 190 mm | 3,080 kg/km | 202 A |
| 3 × 70 + 3 × 35/3 mm² screened | 39.8–42.8 mm | 214 mm | 4,090 kg/km | 250 A |
| 3 × 95 + 3 × 50/3 mm² screened | 43.7–46.7 mm | 234 mm | 5,080 kg/km | 301 A |
Selection and Installation Notes
Do not use this cable in torsional applications. Minimum bending radius follows the applicable installation guidance for the selected cable size. For long chains, lower operating speeds may improve service life. Submit your core count, conductor size, chain dimensions, travel distance, speed and environmental conditions to request a quote from TEBAOFLEX.
Related Applications
Typical applications include container-crane energy chains, stacker cranes, indoor lifting equipment and automated material-handling systems. Explore crane cable solutions or contact TEBAOFLEX for configuration support.
