General rules of electrical installation design
From Electrical Installation Guide
The study of a proposed electrical installation requires an adequate understanding of all governing rules and regulations. A list of most common IEC standards is provided.
The total power demand can be calculated based on the location and power of each load, together with the knowledge of the operating modes (steady state demand, starting conditions, non simultaneous operation, etc.).
The power and number of sources required to supply the electrical installation is readily obtained, also taking into account local tariff structures, to allow the best choice of connection arrangement to the power-supply network, e.g. at medium voltage or low voltage level.
