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Overhead and underground systems

Electric power may be transmitted by two methods: 1. Overhead system 2. Underground system. Its main advantage is that it is less prone to natural hazards like rain, wind, lightning and that it does not interfere with other amenities. However it is more costly as compared to an overhead system. Because of cost consideration the transmission systems in India, are generally overhead. For distribution also the use of underground cables is limited to densely populated areas.