Deep embedment depth of grounding stake for distribution box
Where it is very difficult to drive the standard ground rod in soil / substation trench, Copper wire buried horizontally to a depth of at least 500 mm is considered equivalent to placing ground rods (6m of wire length equivalent to one rod). This Grounding Standard describes the technical requirements for grounding the SEC Distribution Network installations. 8 kV) feeder outlets of HV / MV Substations down to SEC Customer interface including KWH-Meters and meter boxes. 26 mm 2 (10 AWG) ground wire must be used, and in all other markets a 6 mm 2 must be used. For issue to all Ausgrid and Accredited Service Providers' staff involved with the involved with the design and construction of distribution equipment earthing systems and is for reference by field, technical and engineering staff. This helps to reduce the potential difference that exists between conductive parts and the earth.
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