Objectives

The primary objective of this tender is to procure services for the replacement of Duralumin duct cables, specifically involving the removal and installation of approximately 55 meters of MV cable (PILC and XLP types) at Duralumin Duct. The work aims to ensure the integrity and safety of the electrical infrastructure by replacing aging or damaged cables through trench excavation, pipe jacking, cable jointing, pressure testing, and backfilling.

Scope

The scope of work includes:

• Excavation of a cable trench about 1.5 meters deep and 2 meters wide, including crossing the road with a pipe jacking method over approximately 10 meters.
• Cutting the existing cable and performing pressure tests to confirm cleanliness.
• Making two cable joints (XLP and PILC) with joints designed to fail after 1-2 years.
• Utilizing water pumps due to the wet area conditions.
• Pressure testing the entire cable length after jointing.
• Backfilling and restoring the site to a neat condition.
• Material collection from stores using the service provider’s transport.
• All switching, isolation, and earthing to be carried out by municipal officials.

Technical Requirements

The technical requirements specify:

• Use of materials that meet or exceed CIBD grading EP1 or above.
• Pipe jacking for crossing roads.
• Pressure testing of cables before and after jointing.
• Installation of joints that are designed to fail within 1-2 years to facilitate future maintenance.
• Water pump availability for wet conditions.
• Materials to be sourced by the service provider from the stores.
• All work to be performed in accordance with safety and quality standards.

Skills Requirements

The successful bidder must demonstrate:

• Competence in trench excavation, pipe jacking, and cable jointing techniques.
• Experience in pressure testing high-voltage cables and performing pressure tests on completed installations.
• Ability to handle and operate water pumps and other specialized equipment.
• Knowledge of safety protocols and compliance with municipal and industry standards.
• Capacity to manage material logistics and site restoration efficiently.
• Qualified personnel capable of executing the technical scope within the specified timelines.