BSRIA BG03/06 Design Checks for Electrical Services - A Quality Control Framework for Building Services Engineers (BG3/2006) Describes the electrical engineering design process. A series of data sheets for electrical systems and equipment gives design guidance on design inputs, outputs and practical watchpoints for a range of key design topics, to aid the design process and reduce errors. The guidance is in a form that can be easily embedded into a firm's quality assurance procedures.