High voltage grid lines are mostly routed through rural areas. Inthe countries with high population densities it is difficult to keep therural houses very far from the lines' routes. For low cost the dwellinghouses of the rural people in Bangladesh and a number of Asian countriesare usually roofed with thin, galvanized and corrugated steel sheetstermed `tin'. An analysis of the electromagnetic induction effects on atin-shed house from a nearby power line has not yet been reported in theliterature. This paper presents the way this practical issue has beeninvestigated thoroughly. The induced circulating current densities andresulting power dissipation in the roofs of tin-shed houses neighbouringto a 132 kV and a 230 kV transmission line have been quantified as afunction of the distance of the nearest edge of a tin sheet from theline, the tin sheet's slant angle with respect to the vertical plane andthe height of the roof. The results of this investigation would help theelectric utility planners in defending a renewed public concern abouttransmission lines' effects upon the health of rural mass
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