"Parafoudres." . . "Descargas eletricas." . . "præventiv konservering" . . "Sistemas de energia eletrica." . . "Nachrichtenübertragungssystem." . . "Lignes électriques Protection." . . "Paratonnerres." . . "Energía eléctrica." . . "Blitzschutz." . . . . . . . "The protection of transmission systems against lightning, etc"@en . . . . . . . . . . . . . . . . . . . . "The protection of transmission systems against lightning" . "The protection of transmission systems against lightning"@en . . . . . . . . . . . . "The Protection of transmission systems against lightning" . . . . . . . "The Protection of Transmission Systems against Lightning, etc"@en . . . . . . . . . . "lyn" . . "elektricitet" . . "lynnedslag" . . . . "Eletricidade atmosferica Proteção." . . "Installations électriques Protection." . . "Électricité atmosphérique." . . "Foudre." . .