Requirements for electrical installations : IET wiring regulations / Institution of Engineering and Technology. British Standards Institution. Knovel (Firm) Electric apparatus and appliances Installation Safety regulations Great Britain. Electric apparatus and appliances Great Britain Maintenance and repair. TK3275 .R47 2011eb 621.31924 23 INR Includes index. London : Institution of Engineering and Technology and BSI, c2011. c2011. 2011 Text 464 p. : eng Great Britain. Great Britain