NS186
Major Substations Civil Works Design Standard
NS186: Major Substations Civil Works Design Standard
Details the performance and design criteria for the civil works design of Major Substations with the voltages of 132kV, 66kV, 33kV and 11kV.
Scope
This Network Standard provides the performance and design criteria for the civil works design of major substations with the voltages of 132kV, 66kV, 33kV and 11kV.
Refer to NS185 for details of the performance and design criteria for the architectural and structural design of buildings for major substations.
Refer to also the relevant network standard for the requirements for active and passive fire mitigation, fencing and security.
This document does not include detailed information for yard structures in substations, nor does it include provisions or information for distribution substations, kiosks or pole top equipment such as transformers, regulators or capacitors.