In a high tension transmission in mountain path.In a particular location if more no.of ZIgzag bends presented (220 kv) .If there any other possibilities to get without rain fall on a particular location
Are u refering to a tower line?If it is due to location u have more zig zag bends.In hills normally the tower location is to be selected where stability of foundation can be ensured.Second location has to be as far as feasible offer protection from falling of boulders etc.There are more factors which limit tower location positions.Its difficult answer without looking at the site.Try re routing .Now what is the rain business? transmision lines are exposed to all vagaries of weather and are designed for that.So why protection from rainfall pl clarify.
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As said earlier in hilly terrain it is common to see line being not in straight line.Rarely you will have a suspension tower .What I understand is that the line takes a deviation throgh an intermediate tower and again is back on the routing.IT depends on site conditions.One thing for sure is it is no way connected with presence or absence of rainfall.
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The tower spotting depends on Clearance u get at the lower most point of the conductor between two towers.u can have high but few towers over entire line length or have shorter towers more in number for the same .This holds good in plain terrains .In India we have a practice of tensioning off every 3-4 km max.In abroad lines run for 30 k-40km between two tensioning off points on suspension towers .In hills u spot the towers depending on clearance, tower location.Too many towers in short distance could be due to various reasons which can be answered only with more details like what is the designed normal span, profile of the route and so on.As to rainfall it can be no way related to the line.There are many transmission line I have done in mountanous regions where rainfall continues to be as before.It could be due to some other reason.Pl. talk to some locals who have been around more than 12 yrs in that area as what was the rainfall then .Is it 12 yrs since line was constructed?
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