1. System installation requirements
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TI 30A30A10-01EN
n
Grounding with lightning arresters
Connect the protective grounding terminals of arresters and the N-IO field enclosure to the
grounding pole as shown in the diagram below. The grounding method must comply with the
grounding system defined by rules and standards of the country or the region.
Concatenation grounding a lightning arrester and other equipment may cause high-tension in
each equipment by the product of lightning current from arrester and grounding resistance. To
prevent from electrification, overall connection should be equipotential including the floor and the
case of other equipment.
Protective grounding system
F010401.ai
Signal cable
Signal cable
Protective conductor terminal
Grounding bar for sheild lines
Terminal block
Grounding bar
Arrester
grounding cable
Figure Grounding with lightning arresters
Feb. 26, 2018-00