Accurately calculating voltage drop results in lower voltage drops which leads to smaller cable sizes and saves money.
Reference tables for diversity factors and energy demand from Wiring Rules AS/NZ 3000 for domestic and non-domestic installations.
An extensive study of earthing grids using SafeGrid software designed for determining performance of grids of arbitrary geometrical configuration in two layer soils has been undertaken. The study confirms work by Dawalibi and Mukhedkar undertaken using similar software called CDEGS®.
There are many different electrical engineering software packages available throughout the market that are built to different standards.
Here is a list of the 7 key questions to answer before purchasing electrical design software.
The current rating of bare conductors is affected by the conductor temperature, weather parameters, heat losses due to convection and radiation, the solar heat gain and conductor resistance, the calculation of which is governed by a steady-state and a non-steady-state heat balance equation.
Power cables are used for both ac and dc high voltage power transmission throughout the world. Technological advances, particularly those relating to jointing, has meant that cables can reliably be utilised at ever-increasing voltages and for a broader range of applications and installation conditions than ever before.
The calculation of current ratings for modern submarine cables is similar to that of land cables, with only a few nuances. Some important differences which affect the current rating lie in the areas the cables construction and installation conditions.
To show how and when earthing rods can be used to improve the safety of earthing grids by reducing the grid resistance and potential rise (GPR) as well as surface, step and touch potentials.
To model the influence of an additional substance surrounding the conductors of a buried earthing system on grid resistance, touch and step voltages.