Service Cable
A service cable is an electrical cable that connects power from the utility’s distribution system to a building’s main panel. It is designed to handle high voltage and current loads safely. There are two types: Overhead Service Cable (Service Drop), suspended from utility poles, and Underground Service Cable (Service Lateral), buried for safety and aesthetics. Common types include SE Cable (above-ground), USE Cable (underground), and Triplex & Quadruplex Cables (overhead distribution). Key features include high insulation, weather resistance, heavy load capacity, and availability in aluminium or copper conductors.
A service cable is the electrical cable that connects the main power supply from the utility pole or underground source to a building’s electrical panel. It is designed to handle high voltage and ensure safe electricity transmission.
Conductor Material
- Copper is preferred for its high conductivity, durability, and resistance to corrosion.
- Aluminium is a cost-effective alternative, lightweight, and commonly used in overhead service cables.
Characteristics
It consists of solid or stranded aluminium wires as phase and neutral conductor.
Insulation done by Type A/Type C PVC compound.
Phase core has red color PVC insulation and Neutral core has black color pvc insulation.
Outer-sheathing is generally black colored . Outer-sheating is done by ST-1 PVC compound.
Applications
This cable is commonly used for residential and light commercial installations.
Technical Info
| Parameter | Specification |
|---|
| Voltage Rating | 230V (Single-phase), 400V+ (Three-phase), Up to 1.1kV |
| Conductor Material | Copper / Aluminium (as per IEC 60228) |
| Insulation | PVC, XLPE (Cross-linked Polyethylene) |
| Core Configuration | Single-core, Two-core, Three-core, Four-core |
| Operating Temperature | -40°C to +90°C (Normal), Up to +250°C (Short Circuit) |
| Current Carrying Capacity | Varies based on size, material, and installation |
| Short Circuit Capacity | Designed to withstand high fault currents |
| Fire Resistance | Complies with IEC 60332 (Flame Retardant) and IEC 60754 (Low Smoke, Halogen-Free) |
| UV & Weather Resistance | Suitable for overhead and underground installations |
| Installation Method | Overhead (pole-mounted) or Underground (buried/duct) |
| Applicable Standards | IS 694, IS 1554, IS 7098, IEC 60502, ASTM B231/B232, BS 6004 |