Objectives

The primary objective of this tender is to procure services for the replacement of Duralumin duct cable, specifically replacing approximately 55 meters of MV PILC cable at Duralumin Duct. The work aims to ensure the integrity and safety of the electrical infrastructure by performing trench excavation, cable jointing, pressure testing, and backfilling, with a focus on quality and compliance with safety standards.

Scope

The scope of work includes:

• Excavation of a cable trench about 1.5 meters deep and 2 meters wide, crossing the road with a pipe jacking method over approximately 10 meters.
• Cutting the existing cable and performing pressure tests to ensure 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 post-jointing.
• Backfilling and tidying the work area.
• 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 for the service provider include:

• Execution of trench excavation and pipe jacking across the road.
• Proper cutting, jointing, and pressure testing of the cable.
• Use of materials that meet or exceed CIBD grading EP1 or above.
• Provision of water pumps suitable for wet conditions.
• Pressure testing of the entire cable length after jointing.
• Ensuring all alterations are signed and documented.
• Adherence to safety and environmental standards during excavation and installation.

Skills Requirements

The successful bidder must possess:

• Qualified personnel with experience in high-voltage cable jointing and pressure testing.
• Capability to perform pipe jacking and trench excavation safely and efficiently.
• Knowledge of cable types (XLP and PILC) and jointing procedures.
• Availability of appropriate equipment, including water pumps and pressure testing devices.
• Compliance with CIBD grading standards (EP1 or above).
• Ability to collect and transport materials from stores using their own transport.
• Experience in working in wet environments and managing underground cable installations.