The effect of neutral earthing practices on lightning currentdispersion in a low-voltage installation

摘要

Computer modeling with the EMTP code has been applied to severalnconfigurations and earthing practices in use in various countries tonshow the effect of any differences in the dispersion (sharing) of anlightning stroke current among the available paths for the earth-seekingnlightning current. Simplifying assumptions have been made to somendetails of the configurations to focus on the main difference-earthingnpractices. Identifying such differences provides the necessarynperspective on their significance and the strong need to take them intonconsideration when developing international standards onnsurge-protective device applications