The first step before any construction of the distribution lines in the electrical system is an initial survey of the proposed line route. It is really essential to create a proper detailed survey of the area where the power line is passed. and the survey map should consist the road crossings, streams, rivers, railway line, brides, houses, commercial building and all necessary construction which affected the area of the power line. These survey maps are really helpful in the design process where the optimal changes can add into where it is necessary.
While on the initial survey and the initial planning of the respective electrical power line there are special things to make consider to have a better initial design.
Normally the shortest route is the best route. Because when creating a power line the cost also getting higher proportion to the distance. So it really needs to keep in mind that the line distance should be shortest as practicable.
Normally after the construction of power line, the routine maintenance and breakdown need to take care.
It is really good to have better access to those lines and towers with short time. So when there are access roads are close to power lines it is really great to perform maintenance in short period. So while designing and construction of the power line the accessibility also needs to take care.
While construction of the distribution line it is also better to consider the places where the demand gets high in future. When the demand is getting high it is much easier to connect those demand into existing line rather than creating a new line to the demand growing area.
One of the main construction parts of any distribution power line is an electrical tower. When the towers in lines go the straight way it mentions as suspension towers.
When the towers go in a zig zag like shapes those towers are known as angle towers. Normally the construction costs of the angle towers are higher than the normal tower. So It is really essential to minimize the number of angle towers while construction and design of the electrical power line.
Before doing a detailed survey it is better to do a preliminary walkover survey to find out the and have a general idea on what are this line route looks like.
While on preliminary walkover survey find out the path where the minimum tree growth and if there are any alternative paths can use for the line route, it is also better the have check on these routes also to find out the optimum economical route path.
Normally details survey performed by the professional surveyor by using theodolite. Normally angle towers are marked with survey stones while performing the detailed surveying. All important parameters need to show in detail on survey maps such as, other extra high tension line crossings, river crossings, crossings of railway and roads, etc.
Ones the surveyed line is fixed it needs to get approval from other government authorities to avoid conflicts.
