01
Application
Three cores armored electrical cable is used underground directly for supplying power to office building, factory, hospital etc.
Standard
IEC60228, IEC60502-1, IEC60332,
Construction
Conductor: Copper or Aluminum
Insulation: XLPE
Inner Sheath:PVC
Armored:galvanized steel wire or Steel Tape
Outer Sheath: PVC
Insulation: XLPE
Inner Sheath:PVC
Armored:galvanized steel wire or Steel Tape
Outer Sheath: PVC
Parameters of Three Cores underground cable:
| Nominal Cross Section | Diameter of Conductor (Approx.) | Nominal Insulation thickness | Nominal Inner Covering thickness | Nominal Steel Wire dia. | Nominal Sheath thickness | Overall Diameter (Approx.) |
| mm² | mm | mm | mm | mm | mm | mm |
| 3x1.5 | 1.41 | 0.7 | 1 | 0.8 | 1.8 | 13.3 |
| 3x2.5 | 1.81 | 0.7 | 1 | 0.8 | 1.8 | 14.2 |
| 3x4 | 2.31 | 0.7 | 1 | 0.8 | 1.8 | 15.3 |
| 3x6 | 2.81 | 0.7 | 1 | 1.25 | 1.8 | 17.2 |
| 3x10 | 3.61 | 0.7 | 1 | 1.25 | 1.8 | 18.8 |
| 3x16 | 4.51 | 0.7 | 1 | 1.25 | 1.8 | 20.7 |
| 3x25 | 5.61 | 0.9 | 1 | 1.6 | 1.8 | 24.6 |
| 3x35 | 6.71 | 0.9 | 1 | 1.6 | 1.8 | 27.3 |
| 3x50 | 8.05 | 1 | 1 | 1.6 | 1.9 | 30.5 |
| 3x70 | 9.41 | 1.1 | 1 | 2 | 2.1 | 35.1 |
| 3x95 | 11.1 | 1.1 | 1.2 | 2 | 2.2 | 39.5 |
| 3x120 | 12.41 | 1.2 | 1.2 | 2 | 2.3 | 43.2 |
| 3x150 | 13.81 | 1.4 | 1.4 | 2.5 | 2.5 | 48.5 |
| 3x185 | 15.31 | 1.6 | 1.4 | 2.5 | 2.7 | 53.3 |
| 3x240 | 17.51 | 1.7 | 1.4 | 2.5 | 2.8 | 58.1 |
| 3x300 | 19.51 | 1.8 | 1.6 | 2.5 | 3 | 64.2 |
| 3x400 | 22.61 | 2 | 1.6 | 3.15 | 3.3 | 73.8 |
What is three phases cable
Three-phase electricity is an alternating current system comprising three distinct phases of current, with a 120-degree phase separation between each phase. Three-phase electricity is a common feature of industrial and large commercial facilities, as well as some household appliances.
The three-phase electrical system is distinguished by the following characteristics:
The system comprises three phases. A three-phase electrical system is comprised of three distinct phases of current, which are typically designated as A-phase, B-phase, and C-phase, respectively. The specific phase difference between the currents of these three phases allows them to compensate for each other, thereby providing a more stable power supply.
A balanced load is one in which the distribution of the load across the three phases is equal. In a three-phase power system, the load can be distributed evenly across each phase, thereby reducing the imbalance and power fluctuations of the power system.
High efficiency is a key advantage of this system. A three-phase electrical system is more efficient than a single-phase electrical system due to its capacity to provide a more stable power output and to utilise equipment such as three-phase induction motors, thereby improving energy utilisation.
The scope of application is as follows: Three-phase power systems are typically employed in the operation of large motors, generators, transformers, power transmission systems, and other fields, as well as in the context of certain industrial equipment that necessitates high-power loads.
In general, the three-phase electrical system is an efficient and stable power system suitable for use in large industrial and commercial facilities, as well as certain household equipment.