UNE-EN 62561-5:2012 Lightning Protection System Components (LPSC) -- Part 5: Requirements for earth electrode inspection housings and earth electrode seals
2018UNE-EN 62561-5:2018 Lightning protection system components (LPSC) - Part 5: Requirements for earth electrode inspection housings and earth electrode seals
2012UNE-EN 62561-5:2012 Lightning Protection System Components (LPSC) -- Part 5: Requirements for earth electrode inspection housings and earth electrode seals