Analysis and Design of Electrical Power Systems

16Voltage Drop Calculations

IEC 60364, Part 52

Cables and lines are the most important part of a system during planning and configuring. They must be able to withstand the mechanical and thermal stresses and transfer the power from connected equipment with as little loss as possible. This requires the careful dimensioning of the electrical networks. Present‐day systems and household appliances are matched to the nominal voltage of the network. This may fluctuate only within established limits, since otherwise a normal power output cannot be ensured and the equipment can be destroyed. This section discusses the voltage drop and the maximum line length for AC and three‐phase networks, on the basis of the existing regulations and standards [50–52]. ...