Instance of: http://www.w3.org/2004/02/skos/core#Concept
Subject Field unknown
Is Reference of Condutores de ligação a terra-pt#Sense
Erdungsrohr-de#Sense
Δικτύωση γείωσης-el#Sense
Canalizzazione di messa a terra-it#Sense
Canalisation de mise à la terre-fr#Sense
Masseleitungsrohr-de#Sense
Ground conduit-en#Sense
Aardingsleiding-nl#Sense