00862 a2200169 4500 Nust 20221202113104.0 Nust 538.74,RYD Ryder, R. W. 41454 Earthing principles and practice / Ryder, R. W. London, Pitman [1952] xi, 108 p. illus. 22 cm. 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). Earthing principles and practice. 103995 ddc BK 538.74,RYD 184468 184468 0 0 ddc 0 0 MCS MCS GEN 2016-12-12 538.748,RYD MCS5874 2016-12-08 2016-12-12 BK Almirah No.16, Shelf No.6