Like any other discipline, engineering requires a set of skills to acquire for those who are willingly wish
to take it. Those skills vary from field to field and in terms of their applications. However, depending on
the project or work to be done engineers from multiple discipline must work in unison to lead to a given
project to success. Irrespective of the languages spoken by any engineers, there‟re no equal
communication tool to engineering drawing. With this, one can design and predict the work to be done.
During execution, drawings are interpreted and used as a guide tool to accomplish the designers‟ wishes.
Drawing prepared in one country may be utilized in any other country irrespective of the language
spoken. Hence, engineering drawing is called the universal language of engineers. Any language
to be communicative, should follow certain rules so that it conveys the same meaning to everyone.
Similarly, drawing practice must follow certain rules, if it is to serve as a means of communication.
For this purpose, Bureau of Indian Standards adapted the International Standards code of practice
for drawing. The other foreign standards are: DIN of Germany, BS of Britain and ANSI of America.
This manual will be used as step by step guide to everyone who want to master the art of electrical
engineering drawing. From evolutions, engineers used to draft projects on papers which is the reason
why the first unit deals with drawing tools. Students must never forget the importance of drawing
on paper because one may need to draft drawings on paper when they are face to face with clients
for example.
As this drawing is specifically designed for electricians the second unit deals with most of used
electrical symbols. They vary from the basics to complicated ones. What needed here is not only to
memorize them but to even relate how their presentations with their functionalities. Diagrams are also
presented here.
The third unit deals with electrical machines symbols, their diagrams and of course their
applications. And then lastly, the fourth unit clarify the application of drawing to CAD (computer
aided design).
- Teacher: NSHIMYUMUKIZA Pierre Claver