This 3+2 Cores XLPE Insulated Copper Cable is a low-voltage power cable designed for electrical distribution systems. It has a unique configuration of three phase conductors and two neutral/earth conductors. This construction is suitable for applications where two separate earth wires are required. It is insulated with XLPE and protected by a durable PVC outer sheath. It is often referred to as an IEC 60502 3 cores + 2 cables.
Applications
The 3+2 core configuration is specifically designed for installations where two separate neutral/earth conductors are required. Its applications include:
- Power Distribution: For mains, sub-mains, and sub-circuit wiring in urban networks and industrial plants.
- Indoor and Outdoor Installations: Suitable for use in damp and wet locations.
- Fixed Installations: Can be installed unenclosed, in conduits, or buried directly in underground ducts where not subjected to mechanical damage.
Standards Compliance
This cable is manufactured and tested to comply with the following international standards:
- Conductors: IEC 60228
- Design Specification: IEC 60502-1 - Power cables with extruded insulation and their accessories for rated voltages from 1 kV ( = 1.2 kV) up to 35 kV ( = 40.5 kV) - Part 1: Cables for rated voltages of 1 kV ( = 1.2 kV) and 3 kV ( = 3.6 kV).
Construction Details
The cable's construction consists of the following components:
- Conductor: Plain annealed copper, available in Class 1 (solid) or Class 2 (stranded) configurations.
- Insulation: Cross-linked polyethylene (XLPE) for excellent electrical properties and high-temperature performance.
- Filler: Non-hygroscopic material to maintain a circular shape and prevent moisture ingress.
- Binder Tape: A non-hygroscopic tape to secure the cores in place.
- Outer Sheath: A durable polyvinyl chloride (PVC) outer layer for mechanical protection.
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