1. Construction
- Conductor: Plain annealed copper complying with IEC 60228 class 1 or 2.
- Conductor Screen: The conductor screen consists of an extruded layer of non metallic, semi-conducting compound firmly bonded to the insulation to exclude all air voids.
- Insulation:XLPE
- Insulaton Screen: Double copper tape or copper wires applied helically with copper tape
- Separation Sheath (for armoured cable): The separation sheath comprises a layer of extruded PVC, PE or LSZH, applied under the armour .
- Lapped Bedding : The lapped bedding consists of Polyester non woven fabrics .
- Armour (for armoured cable): Galvanized steel wire armour
- Outer Sheath: PVC, PE or LSZH can be offered as an option
2. Installation and operation condition
- Operating Temperature: up to 90°C
- Short Circuit Temperature( 5 seconds maximum duration ): 250°C
- Bending Radius: 12 x OD
- Current Rating Conditions:
- Ground Temperature: 20°C
- Ambient Temperature (air): 30°C
- Depth of Soil: 0.8m
- Thermal Resistance of Soil: 1.5K•m/W
3. Technical parameters
| Ross section of conductor(mm²) | Conductor structure | Insulation thickness(mm) | sheath thickness(mm) | Approx.cable diameter(mm) | Max resistance of conductor at 20℃ (Ω/km) |
| 3×35 | 7 | 4.5 | 2.6 | 51.3 | 0.524 |
| 3×50 | 10 | 4.5 | 2.7 | 53.8 | 0.387 |
| 3×70 | 14 | 4.5 | 2.8 | 57.5 | 0.268 |
| 3×95 | 19 | 4.5 | 3.0 | 62.0 | 0.193 |
| 3×120 | 24 | 4.5 | 3.1 | 65.2 | 0.153 |
| 3×150 | 30 | 4.5 | 3.2 | 68.3 | 0.124 |
| 3×185 | 37 | 4.5 | 3.3 | 72.3 | 0.0991 |
4. Features
- Heat resistance: The mesh XLPE has excellent heat resistance.Does not decompose under 200 °C and carbonization, long-term working temperature is 90 °C, hot life up to 40 years.
- Insulation performance: XLPE maintains the good insulation characteristics of PE, and the insulation resistance further increases.The tangent of dielectric loss Angle is very small, and it is not affected by temperature.
- Mechanical properties: The hardness, stiffness, abrasion resistance and impact resistance of XLPE are improved due to the establishment of new chemical bonds between macromolecules, thus making up for the vulnerability of PE to environmental stress and cracking.
- Chemical resistance: XLPE has strong acid and alkali resistance and oil resistance, and its combustion products are mainly water and carbon dioxide, which are less harmful to the environment and meet the requirements of modern fire safety.
5. Application
The cables are designed for distribution of electrical power with nominal voltage Uo/U ranging from 1.8/3KV to 26/35KV and frequency 50Hz. They are suitable for installation mostly in power supply stations, indoors and in cable ducts, outdoors, underground and in water as well as for installation on cable trays for industries, switchboards and power stations.
5.Details
CNSA Laboratory
3S Safety Cable Advanced Institute of Technology with 7 laboratories, has been established in Finecredit Group,
including Electrical Performance Laboratory, Mechanical Performance Laboratory, Combustion Test Laboratory,
High Frequency Laboratory, etc. Equipped with over 50 advanced equipment and technologies.
▼ Packing&Delivery:
We are capable of meeting the most strict delivery schedules according to per purchase order. Meeting the deadline
is always the top priority as any delay in the delivery of cable can contribute to overall project delay and cost overrun.
The cable is supplied in wooden reels, corrugated boxes, and coils. Cable ends are sealed with BOPP self-adhesive
tape and non-hygroscopic sealing caps to protect the cable end from moisture. The required marking shall be printed
with a weather-proof material on the outsides of the drum according to customers' requirements.
