Create an electrical engineering diagram - Visio Drag electrical component shapes onto the drawing page. Shapes can have data. You can enter shape data and add new data to a shape. Enter shape data. Select a shape, right-click, click Data, and then click Define Shape Data. In the Define Shape Data dialog box, Visio Electrical Engineering Shapes Download - conceptdraw Electrical drawing is a way of illustrating information about power, lighting, and communication for an engineering or architectural project. Our electrical drawing software will assist you in drawing your electrical diagrams using standard electrical symbols minimizing your efforts and making it very simple to use even for beginners.