PROPOSED CONSTRUCTION OF 2 X 400kV POWERLINES FROM THE EXISTING LULAMISA-PLUTO 400kV POWERLINE TO THE PROPOSED 400/88kV DEMETER MAIN TRANSMISSION SUBSTATION: ROODEPOORT STRENGTHENING PROJECT IN THE CITY OF JOHANNESBURG MUNICIPALITY, GAUTENG PROVINCE

The aim of the Roodepoort Strengthening Project is to provide a new substation to supply power to the Load Centre (Cosmo City) and surrounds. The new substation (Demeter) will have a capacity of 400/88kV MTS and be strengthened with a 400kV Powerline looping in and out of the existing Apollo-Pluto 400kV line.
The project area is located approximately 10 km north-east of Krugersdorp (Mogale City) in the Johannesburg Metropolitan Municipality of the Gauteng Province. Surrounding towns include Randburg, Roodepoort, and Sandton. This proposed project consists of the following:
• Demeter Substation with a footprint of approximately 500 m x 500 m (25 ha) and a capacity of 3 x 315 MVA, 400 kV/88kV
• 2 x 400kV powerlines which will loop in and out of the existing 400kV Apollo-Pluto powerline to the proposed Demeter Substation
• The powerline will be a stell structure
• The height of the poles will be between 29 m and 32 m from ground surface;
• The average distance between the poles will be between 300 m and 350 m;

• The servitude will be 27.5 m on each side of the pole inside a buffer of 55 m per single line. The total buffer for two lines will thus be
110m;
• Telecommunications tower within the substation yard, approximately 45 m high;
• Access road to the newly proposed substation; and
• Control building and an oil dam.

Province(s): Gauteng