66KV Copper wire shielded Power Cable
Application
IEC 60840 66kV copper wire shielded HV cable for utility substations to urban underground feeders, regional grid backbones, and industrial zone power transmission requiring reliable fault handling and electrical stress control.
Core Strengths
Shield degradation in 66kV systems increases maintenance costs. Our uniform copper wire shielding reduces corona and provides continuous shield conductor for end-to-end grounding. CE/TÜV/ISO certified.
Standard
GB 11017, IEC60840
Construction
Conductor: Stranded copper (class 2)
Conductor screen: Semiconductive layer
Insulation: XLPE (cross-linked polyethylene)
Insulation screen: Semiconductive layer
Copper wire screen (shield)
Water‑proof tape: Water‑blocking tape
Inner sheath: PVC or PE
Armor: Galvanized steel wire (SWA) or steel tape (as required)
Outer sheath: HDPE or PVC
Features
Rated voltage: 66kV (HV transmission)
XLPE insulation – 90°C continuous, 250°C short‑circuit
Copper wire screen – uniform electric field, corona suppression, fault return path
Water‑proof tape – prevents longitudinal moisture ingress
Armor – mechanical protection (crush / tensile resistance)
Ideal for utility substations, urban underground feeders, regional grid backbones
Installation: direct burial, ducts, or tunnels
100% factory tested to IEC 60840
Product Data Sheet
| 66KV Copper wire shielded Power Cable | |||||||||
| Rated voltage | Conductor size | Approx. Conductor dia. | XLPE Insulation thickness | Electric Capacity | Inductance | Loss of insulation | Max. D.C. Resistance | ||
| Parallel laying | Trefoil laying | Cu | Al | ||||||
| KV | mm2 | mm | mm | pf/m | mh/km | mh/km | w/m | Ω/km | |
| 66 | 240 | 18.4 | 19 | 136 | 0.757 | 0.508 | 0.175 | 0.0754 | 0.125 |
| 300 | 20.6 | 18.5 | 147 | 0.734 | 0.489 | 0.19 | 0.0601 | 0.1 | |
| 400 | 23.5 | 17.5 | 165 | 0.708 | 0.465 | 0.212 | 0.047 | 0.0778 | |
| 500 | 26.6 | 17 | 182 | 0.683 | 0.445 | 0.234 | 0.0336 | 0.0605 | |
| 630 | 30.25 | 16.5 | 201 | 0.657 | 0.424 | 0.259 | 0.0283 | 0.0469 | |
| 800 | 34.23 | 16 | 224 | 0.633 | 0.406 | 0.288 | 0.0221 | 0.0367 | |
| 1000 | 41.4 | 16 | 265 | 0.594 | 0.386 | 0.341 | 0.0176 | 0.0291 | |
| 1200 | 45.28 | 16 | 282 | 0.577 | 0.375 | 0.363 | 0.0151 | 0.0247 | |
Images
inquiry