The Effect of Neutral Earthing Practices on
Lightning Current Dispersion in a Low-Voltage Installation
Arshad Mansoor, Member, IEEE
Power Electronics Applications Center
Knoxville TN 37932 USA
François Martzloff, Life Fellow, IEEE
National Institute of Standards and Technology
Gaithersburg MD 20899 USA
© 1996 IEEE
Reprinted, with permission, from IEEE Transactions on Power Delivery, Vol.12, No.3, July 1997
Part 2 – Development of standards – Reality checks
Part 4 – Propagation and coupling of surges
In the case of a direct lightning stroke to a building, the earth-seeking current is dispersed among all
available paths to earthing electrodes, including intentional made electrodes and opportunistic electrodes.
A substantial part of that current will exit the building via its connection to the power distribution system.
The initial part o...