Objectives

The primary objective of this tender is to appoint a qualified and compliant contractor to deliver comprehensive maintenance services across multiple municipal sub-stations. The initiative aims to ensure the continuous, safe, and efficient operation of critical electrical infrastructure, minimize unplanned downtime, extend asset lifespan, and maintain strict adherence to municipal operational, health, safety, and environmental standards.

Scope

The scope encompasses routine, preventive, and corrective maintenance activities at various sub-stations managed by the Nelson Mandela Metropolitan Municipality. Work includes inspection, testing, servicing, calibration, and repair of electrical assets such as transformers, switchgear, protection relays, control and automation systems, and auxiliary equipment. Contractors are responsible for site logistics, implementation of safety protocols, performance reporting, and coordination with municipal engineering teams. Specific site locations, equipment inventories, service levels, and performance monitoring criteria are detailed in the complete tender documentation.

Technical Requirements

• Contractor Grading: Tenderers must hold a minimum Construction Industry Development Board (CIDB) contractor grading of 1GB or higher.
• Submission Protocols: Tenders must strictly follow prescribed formatting, sealing, addressing, and delivery timelines. Late submissions will be automatically rejected.
• Regulatory Compliance: All maintenance activities must align with municipal health, safety, environmental, and quality management frameworks applicable to electrical infrastructure.
• Resources & Equipment: Contractors must supply all necessary specialized tools, diagnostic instruments, spare parts, and logistical support required for substation operations.

Skills Requirements

• Engineering & Technical Expertise: Qualified electrical engineers and certified technicians proficient in high- and low-voltage substation systems, protection schemes, and predictive/corrective diagnostics.
• Skilled Trades: Licensed electricians, instrument technicians, and control & automation specialists experienced in structured maintenance workflows and fault resolution.
• Safety & Compliance Personnel: Trained Health and Safety Representatives and Risk Assessors knowledgeable in electrical safety standards, arc flash mitigation, and lockout/tagout procedures.
• Project Management: Experienced coordinators capable of scheduling multi-site maintenance, managing compliance documentation, and liaising with municipal stakeholders.
• Certifications: All personnel must possess valid trade qualifications, electrical licensing, and medical fitness certificates as mandated by South African occupational and industry regulations.

Terminology Clarification

CIDB 1GB Grading: The Construction Industry Development Board (CIDB) grading system evaluates contractors based on financial turnover, project experience, and technical capacity. The “1GB” designation refers to General Engineering (G) with an Electrical specialization (B), indicating the contractor’s eligibility to execute medium-complexity electrical maintenance and installation projects within established monetary thresholds. This grading ensures the appointed entity possesses adequate resources, expertise, and risk management capabilities for municipal substation operations.