NS113
NS113: Site Selection and Construction Design Requirements for Chamber Substations
This Network Standard applies to site selection, design and construction of new contestable and non-contestable chamber substation installations and refurbishment of existing chamber substations.
Scope
This Network Standard applies to site selection, design and construction of new contestable and non-contestable chamber substation installations and refurbishment of existing chamber substations.
Ausgrid is responsible for the management and operation of Ausgrid’s electricity supply network. The network is a major infrastructure investment and is required to operate both economically and reliably in all weather, loading and environmental conditions.
This Network Standard:
- applies to nominal 11 kV (and 5 kV) primary voltage systems.
- applies to nominal 415 / 240 volt supply systems.
- applies to chambers used for control points.
- applies to chambers utilised for control of supply to High Voltage Customer (HVCs) connections.
- does not apply to SWER systems.
- does not apply to nominal primary voltage systems higher than 11 kV.
- does not apply to Zone or sub-transmission substations, 11 kV regulators or auto transformers.
- does not apply to Kiosk substations.
Note: Special arrangements will be made for voltages higher than 11 kV in consultation with the Head of AEP&S.
This Network Standard specifies Ausgrid’s requirements for the site selection and construction design requirements for chamber type distribution substations, for supply of electricity to large premises. The requirements of this Network Standard shall apply throughout Ausgrid’s supply area, for contestable and non-contestable projects.
Substation electrical design and electrical construction and equipping of chamber type substations are not covered in this Network Standard. These topics are covered in NS114 Electrical Design and Construction Standards for Chamber Type Substations.
The requirements of all relevant Australian Standards, the Building Code of Australia as applicable and all statutory bodies are regarded as minimum requirements for the establishment or refurbishment of chamber substations. Where this document exceeds those requirements, this document is to become the minimum standard acceptable to Ausgrid.