Tender Summary: Generator and LV Systems Maintenance

Objectives

The primary objective is to secure a competent contractor to deliver consistent, compliant, and efficient maintenance services for generator and low voltage (LV) electrical systems across Airports Company South Africa (ACSA) facilities. The contract aims to ensure uninterrupted power availability, extend equipment lifespan, mitigate operational risks, and maintain strict adherence to safety and regulatory standards throughout a six-month service period.

Scope of Work

The scope covers the end-to-end maintenance of backup generator sets and associated LV distribution infrastructure at designated airport sites. Services will be executed over a fixed six-month term. While detailed task specifications are contained within the official tender documentation, the core scope includes:

• Scheduled preventive and routine maintenance of generator units and LV switchgear
• System inspections, functional testing, and performance validation
• Fault identification, diagnostic troubleshooting, and corrective repairs
• Component replacement, lubrication, calibration, and safety compliance checks
• Generation of maintenance reports, asset condition assessments, and operational recommendations

Technical Requirements

Tenderers must satisfy specific technical and accreditation thresholds to be considered eligible:

• Mandatory Construction Industry Development Board (CIDB) contractor grading of 3EB or higher
• Adherence to South African National Standards (SANS) for electrical installations and mechanical maintenance
• Capability to perform maintenance within live airport environments without compromising security or flight operations
• Strict compliance with submission protocols; only original tender documentation may be used, and late or emailed submissions will be disqualified

Skills and Qualification Requirements

The employer requires contractors with verified expertise in critical infrastructure maintenance. Essential competencies include:

• Proven experience in maintaining industrial-grade generators and LV power distribution networks
• Qualified personnel holding recognized trade certificates in electrical engineering, instrumentation, or mechanical maintenance
• Proficiency in predictive maintenance strategies, lock-out/tag-out procedures, and hazard risk assessments
• Operational capacity to mobilize skilled teams, tools, and spare parts rapidly to minimize system downtime
• Financial and project execution capability validated through the CIDB grading framework

Explanation of Key Terms

• CIDB Contractor Grading (3EB): The Construction Industry Development Board classifies South African contractors based on financial turnover, project complexity, and historical performance. A 3EB rating specifically certifies eligibility for electrical engineering works of moderate complexity and value, confirming the contractor possesses adequate technical, managerial, and financial capacity.
• LV (Low Voltage) Systems: Electrical installations operating at voltages typically below 1,000V AC. These systems manage power distribution, lighting, control circuits, emergency signage, and auxiliary equipment within commercial and transport infrastructure.
• Generator Systems: Standby power units, predominantly diesel-driven, designed to automatically supply electricity during main grid failures. They require specialized mechanical, fuel, cooling, and electrical maintenance to guarantee immediate and reliable activation.