245 kV GIS M-1-2-3-4-5 Maintenance: Replacement of breaker contacts, renewal of all desiccants, replacement of o-rings in all disassembled sections, replacement and adjustment of damaged disconnector contacts, vacuum treatment of all feeders using the DILO Treatment Device, improvement and filtration of SF6 gas followed by filling, testing of SF6 gases with the Multi-Analyzer Device, final checks using the SF6 leak detector, and reporting of tests and completed work.
