Ryder, R. W. <br/><br/>
Earthing principles and practice /  
Ryder, R. W. 
 - London,  Pitman  [1952] 
 - xi, 108 p.  illus. 22 cm. 
<br/><br/>Physical Characteristic of the Earth (Page-5), The Resistance of Electrodes to Earth (Page-12), High Voltage Earthling (Page-23), Lightning Protection (Page-36), The Human Elements (Page-41), Consumer’s Earthling (Page-45), Earth Projection on Low Voltage Networks (Page-60), Measurement of Earth Resistance (Page-68), Current-Carrying Capacity of Earth Electro modes (Page-77), Special Effects (Page-83).        
<br/><br/><label>Subjects--Topical Terms: </label><br/>Earthing principles and practice.
<br/><br/><label>Dewey Class. No.: </label>538.74,RYD