NS270
Stray Direct Current Management
NS270 : Stray Direct Current Management
The purpose of this document is to minimise the risk of corrosion to Ausgrid assets due to stray direct current. Sources of stray direct current are to be managed by specifying the minimum requirements for the following:
- Design
- Test and inspection
- Acceptance/rejection interference criteria
Scope
This document specifies high level requirements that apply to buried assets across the Ausgrid network subject to exposure from stray direct current from external parties, such as railway traction systems and cathodic protection systems.