Grounding, ground
Grounding is the act of connecting a conductor, or exposed conductive parts of an installation, to the earth.
the earth as a common return
for an electric circuit
The grounding protects personnel from stray currents that could leak to the metallic enclosures.
A lightning rod and its associated grounding conductors provide protection because they divert the current from nonconducting parts of the structure.
Grounding is the act of connecting a conductor, or exposed conductive parts of an installation, to the earth.
Англійський словник Коллінза, електронний ресурс: https://www.collinsdictionary.com/
Nick Brieger, Alison Pohl: Technical English Vocabulary and Grammar.