NF C52-216-2/A1*NF EN 50216-2/A1:2003 Power transformer and reactor fittings - Part 2 : gas and oil actuated relay for liquid immersed transformers and reactors with conservator
2003NF C52-216-2/A1*NF EN 50216-2/A1:2003 Power transformer and reactor fittings - Part 2 : gas and oil actuated relay for liquid immersed transformers and reactors with conservator