Objectives

The primary objective of this tender is to supply and install heating elements on hot water storage tanks at Grey’s Hospital, specifically to restore hot water supply in the kitchen, minimize blockages caused by washing dishes with cold water, and ensure the proper functioning and safety of the hot water system.

Scope

The scope of work includes:

• Supply and install electric heating elements (12kW each) on the hot water storage tank at the main kitchen.
• Replace the existing steam flange with a new flange designed to accommodate three 12kW electric elements, welded with three holes and sockets.
• Install temperature controls to regulate water temperature.
• Supply and connect hot water circulating pumps matching the existing specifications.
• Construct an electrical panel and connect all necessary wiring, cables, breakers, contactors, pilot lights, switches, ammeters, voltmeters, terminal blocks, and related electrical components.
• Use 10mm² 4-core PVC insulated armoured cable and silicone wires for connections.
• Commission the system and certify it as safe for use.
• Provision all consumables such as cable trays, welding rods, cutting discs, cable ties, etc.

Technical Requirements

The technical requirements include:

• Supply and installation of three electric heating elements (12kW each).
• Replacement of flange to accommodate three elements with welded sockets.
• Installation of temperature controls and hot water circulating pumps.
• Construction of an electrical control panel with all necessary electrical components.
• Use of specified cables and wires, ensuring proper insulation and safety standards.
• Compliance with relevant standards including CIDB Grading 1ME.
• Adherence to safety, electrical, and building regulations, including Occupational Health and Safety Act 85 of 1993.
• Proper commissioning and certification of the installed system.

Skills Requirements

The successful bidder must possess:

• Qualified electrical and mechanical technicians experienced in installing and commissioning hot water systems and electrical panels.
• Competence in welding and fabrication, specifically for flange modification and installation.
• Knowledge of electrical safety standards and compliance with South African electrical and building regulations.
• Ability to supply and connect electrical components, including pumps, breakers, contactors, and control devices.
• Experience in working within hospital or similar institutional environments, ensuring minimal disruption and adherence to safety protocols.