Tender for Conversion of Overhead Lines to Underground Power Networks in Surat Rural Division

• Supply of 11KV/22KV UG XLPE cables (to be supplied by DGVCL) and straight-through joint kits (to be supplied by the contractor).
• Laying of underground cables in designated areas as per technical specifications.
• Testing and commissioning of installed cables to ensure compliance with standards.
• Erection and maintenance of overhead HT/LT lines, including dismantling of existing poles and transformer centers.
• Construction and installation of transformer center structures.
• Implementation of cable terminations and straight-through joints.
• Dismantling of poles, transformers, and overhead line components.
• Adherence to safety standards and quality assurance protocols.

1. Preparation and planning of cable laying.
2. Supply of cables and joint kits.
3. Installation of underground cables.
4. Testing and quality checks.
5. Erection of overhead lines and structures.
6. Dismantling of old infrastructure.
7. Final commissioning and handover.

| Technical Specifications |
|----------------------------|------------------------------|
| Cable Voltage Rating | 11KV/22KV |
| Cable Type | XLPE |
| Conductor Material | Copper |
| Insulation Thickness | As per IEC standards |
| Operating Temperature | Up to 90°C |
| Minimum Bending Radius | 12 times cable diameter |

• All work must comply with relevant IS standards.
• Proper safety measures must be followed during installation.
• Testing should include insulation resistance, continuity, and dielectric strength.
• Final acceptance will be based on successful testing and inspection.

Sequential Process:

1. Site survey and planning.
2. Procurement of cables and joint kits.
3. Underground cable laying with proper bedding.
4. Cable jointing and terminations.
5. Testing and quality assurance.
6. Overhead line erection and dismantling.
7. Final inspection and commissioning.

The estimated project cost is approximately INR 50,00,000. The financial breakdown includes cable procurement, labor, testing, and overheads. Bidders must submit a detailed financial proposal with their bid, including unit rates and total cost. Payment terms are typically linked to project milestones, with an initial advance and subsequent payments based on work progress. The minimum bid offer rate must be clearly indicated in the Percentage Rate form. All financial proposals should be valid for 180 days from bid submission. The bid evaluation will consider cost competitiveness along with technical compliance.