
CHAPTER 5
Electrical Industries
Designing an electrical installation
Every electrical installation, no matter how small, has to be designed,
whether mentally or by preparing a specification and/or a plan/drawing.
Even for the installation of a single socket outlet, a decision must be
made as to the best position, the most economic cable route and the size
of cable, and therefore a design has to be considered.
In order to illustrate the procedure that has to be adopted in the
design of an electrical installation, let us consider an installation in a new
domestic dwelling.
Specifications and drawings
Usually a building firm invites tenders fro ...