XLPE Insulated Power Cable

XLPE insulated power cable is electrical cables that are used to transmit electrical power in various applications. These cables are designed with XLPE insulation, which provides electrical insulation and mechanical protection to the conductors.

The conductors used in XLPE insulated power cables are typically made of copper or aluminum and are usually stranded to provide flexibility. The size and number of conductors depend on the voltage rating and current capacity of the cable.

The XLPE insulation used in these cables is made of a thermoset material that provides excellent electrical insulation properties and is highly resistant to moisture, heat, chemicals, and physical damage. The insulation is also flame-retardant, which helps to prevent the spread of fire in the event of a fault.

1.Application Of XLPE Insulated Power Cable

It is used to transmit and distribute power in power transmission and distribution system of 37kV or lower. It is generally applied to the fields including power, construction, mines, metallurgy, petrochemical indusry and communication in complete replace of oil immersed paper insulated power cable and in partial replace of PVC insulated power cable.

2.Advantages Of XLPE Insulated Power Cable

Excellent electrical properties:

XLPE insulation provides excellent electrical insulation properties, ensuring reliable and safe power transmission.

High temperature resistance:

XLPE insulation can withstand high temperatures, making it suitable for use in high-temperature applications.

Durability:

XLPE insulated power cables are highly resistant to moisture, heat, chemicals, and physical damage, making them durable and long-lasting.

Low dielectric losses:

XLPE insulation has low dielectric losses, which means that less power is lost during transmission.

3.Construction Of XLPE Insulated Power Cable

Al/Cu Conductor XLPE Insulated Thin/Thick steel armored PE Sheathed Power Cable.

4.Standards Of XLPE Insulated Power Cable

The products are mainly complying with IEC 60502 standard, also can be produced according to OEM requirements and other standards, such as BS standard, DIN standard, ASTM standard, etc.

Voltage grade is up to 35kv, cross-section area can be up to 400 sqmm (copper or alumimum conductor). Conductor long-time operating temperature is 90℃. In short circuit, conductor highest temperature should be not more than 250℃

5.Using features Of XLPE Insulated Power Cable

(1). Rated voltage: Uo/U: 26/35kV, 21/35kV, 12/20 kV (24 kV), 8.7/10kV, 8.7/15kV, 6/6kV, 6/10kV.

(2). No. of core: Single-core, Three-core.

(3). The highest allowed operating temperature of conductor for long-term working is 90℃. In short-circuit (Max. Long-term is no more than 5 seconds). The highest temperature for conductor is no more than 250℃.

(4). D.C Resistance of the conductor complies with the stipulations of GB/T3956-1997.

(5). The environment temperature should be no lower than 0℃ when lay. Otherwise it should be preheated.

(6). The cable is laid without horizontal drop limit. The Min. Bending radius of three-core cable should be no smaller than 12 times of cable outer diameter.

(7). Working Frequency Voltage Test:.

For cable with Uo of 3.6kV or lower: 2.5Uo+2kV/5min without puncture.

For cable with Uo of 3.6Kv~18kV: 3.5Uo/5min without puncture.

For cable with Uo of 21kV and 26 kV: 2.5Uo/30min without puncture.

(8). Partial Discharge Test: The discharge volume should be no more than 10pC under 1.73Uo for the cable.

6.Tpyes Of XLPE Insulated Power Cable

Copper (aluminum) core, XLPE insulated and sheathed power cables.

Copper (aluminum) core, XLPE insulated, PE sheathed power cables.

Copper (aluminum) core, XLPE insulated, steel tape armoring PVC sheathed power cables.

Copper (aluminum) core, XLPE insulated, steel tape armoring, PE sheathed power cables.

Copper (aluminum) core, XLPE insulated, steel wire armoring, PVC sheathed power Cables.

Copper (aluminum) core, XLPE insulated, steel wire armoring, PE sheathed power cables

Number of cores: 1 to 6.

Packing: Wooden drum, steel-wooden drum.