Brooklyn Substation Stage 2

The project comprised the structural verification and certification of multiple substation components associated with the Stage 2 upgrade, including:

• Transformer foundations for upgraded 30/50MVA units
• Footings for circuit breakers, disconnectors, and post insulators
• Structural design verification of light mast and NER (Neutral Earthing Resistor) foundations
• Voltage transformer and associated equipment support structures

The scope involved a detailed structural check, verification calculations, and certification of design drawings submitted for approval, ensuring compliance with project specifications and Australian Standards.

The project required a high level of engineering precision and coordination due to:

• Integration with an existing operational substation, requiring validation of new works without compromising existing infrastructure
• Multiple equipment types and loading conditions, each requiring independent verification and compliance assessment
• Strict compliance requirements, including:
• AS1170 loading standards
• Importance Level 3 classification
• 50-year design life
• High wind loads (Region A5, 46 m/s wind speed)
• Tight project timelines, with rapid turnaround required for certification and approvals

We delivered a robust and efficient verification solution through:

• Comprehensive structural verification calculations for all critical substation footings and support systems
• Detailed review of design drawings against AS1170 loading criteria, including wind and seismic actions
• Assessment of foundation adequacy and hold-down systems, ensuring stability under operational and extreme loading scenarios
• Identification of required design modifications and retrofit recommendations, where necessary, to achieve compliance
• Preparation and issuance of CPEng-certified structural certificates and stamped drawings, facilitating regulatory approval
• Efficient coordination with the client team to meet tight submission deadlines and maintain project momentum

• Verification of multiple high-voltage substation foundation systems
• Designed for 50-year design life and Importance Level 3 infrastructure
• Wind design based on 46 m/s (Region A5) conditions
• Delivery of CPEng-certified calculations and drawings
• Integration with live substation upgrade works