Appendix-D - Geometric Design Manual-2002 Appendix D...

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Appendix D Geometric Design Manual-2002 Utilities Ethiopian Roads Authority Page D-1 D. U TILITIES D.1 Ethiopian Electric Light and Power Authority The Ethiopian Electric Light and Power Authority Distribution Manual, dated January 1975, shows the following parameters: Minimum vertical clearance of wires above roads: The manual generally gives no guidance on the placement of the utility within the road reserve. A drawing shows that street lighting is to be placed 1 meter behind a curb on a main road. The manual does not state placement for un-curbed roads, and such placement should not be allowed. Similarly, power poles are placed 60 cm behind curbs; in rural areas, the poles shall be placed at least 15 meters from the center of the road. For underground cables crossing the road, unprotected cables are placed 80 cm below a gravel road; or cables encased with concrete pipe are placed 100 cm below an asphalt road or paved sidewalk. The EELPA shows vertical clearances as per Table D-1. Table D-1: Minimum Vertical Clearance of Wires above Road Surface in Centimeters
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This note was uploaded on 11/05/2010 for the course CIVIL ce-3020 taught by Professor Era during the Spring '10 term at Trinity College Dublin.

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Appendix-D - Geometric Design Manual-2002 Appendix D...

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