BSI - BS 4444
Guide to Electrical Earth Monitoring and Protective Conductor Proving
|Publication Date:||31 December 1989|
|ICS Code (Protection against electric shock. Live working):||13.260|
|ICS Code (Electrical engineering in general):||29.020|
Principles involved in the design and construction of earth monitoring, earth proving and insulation monitoring devices, and requirements for their safe use and application.