2. TECHNICAL DETAILS OF THE PROPOSED PROJECT ... - Eskom

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Environmental Impact Assessment for the proposed construction of a 400 kV Transmission power line between Mercury Substation and Ferrum Substation traversing the Free State, North West and Northern Cape Provinces expensive to construct. Therefore, Transmission power line routes are planned with as few bends as possible. Figure 2.1: Diagrammatic representation of the cross-rope suspension tower Figure 2.2: Diagrammatic representation of a compact cross rope Technical Details 2-2 16/04/2007
Environmental Impact Assessment for the proposed construction of a 400 kV Transmission power line between Mercury Substation and Ferrum Substation traversing the Free State, North West and Northern Cape Provinces Figure 2.3: Diagrammatic representation of a self-supporting tower 2.2.2 Servitude Requirements and Clearances A permanent servitude will be registered against the title deeds of the properties that the proposed Transmission power line is proposed to traverse. The permanent servitude width for a 400 kV Transmission power line is 55 m, i.e. 27.5 m on either side of the centre line and 10 m from any anchor. The servitude is required to ensure the safe construction, maintenance and operation of the power line, and thereby entitles Eskom Transmission Division certain rights, such as unrestricted access and right of way (ROW). Where 400 kV Transmission power lines are constructed in parallel, a minimum separation distance of 55 m is required in order to ensure the reliable operation of both lines. The minimum vertical clearance to buildings, poles and structures not forming part of the power line must be 5.6 m. The conductor ground clearance between the towers is generally 8.1 m. Any farming activities can be practised underneath the power line, providing that safe working clearances and building restrictions are adhered to under all circumstances; this applies to all farming activities except the farming sugar cane and commercial trees. The minimum distance of a 400 kV Transmission power line structure from proclaimed public roads is 95 m from the centre line of the structure to the centre Technical Details 2-3 16/04/2007
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2. TECHNICAL DETAILS OF THE PROPOSED PROJECT ... - Eskom

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