Laboratorio

Reports that proximity to electrical transmission or distribution lines may be responsible for increases in human health risks, including leukemia and brain cancers, have resulted in a sharp rise inthe level of public concern despite decidedly mixed scientific results. An important policy question is whether these perceptions of health risks may also have resulted in measurable reductions in thevalue of properties in the vicinity of electrical lines. A case-control study was conducted to test the hypothesis that exposure to magnetic fields of the type generated by high-voltage power linesincreases cancer incidence in children. Transmission systems include electric power transmission line right of way, the beaches of distribution substations and access roads or maintenance. The mainstructures of the transmission line are the same line, the drivers and the soportes.El towers voltage and capacity of the transmission line affecting the size of these main structures. For example, thetower structure varies directly according to the required voltage and the capacity of the line. The towers can be simple wooden poles for transmission lines small as 46 kilovolts (kV). They used woodenpole structures as H, for lines of 69-231 kV. Steel structures are used independent, single circuit, for lines of 161 kV or more. It is possible to have transmission lines up to 1,000 kV.Lastransmission lines may have few, or hundreds of kilometers long. The right path is constructed where the transmission line can vary from 20 to 500 meters wide, or more, depending on the line size and thenumber of transmission lines. Transmission lines are mainly terrestrial systems and can pass on wetlands, streams, rivers and near the shores of lakes, bays, etc. Are technically feasible, but veryexpensive underground transmission lines. By placing bass lines or place them near areas with human activities (eg, roads, buildings) increases the risk of electrocution. Typically, standards reduce this...