DIN CLC/TS 50537-4 VDE V 0115-537-4:2011-04
Railway applications – Mounted parts of the traction transformer and cooling system
Part 4: Gas and liquid actuated (Buchholz) relay for liquid immersed transformers and reactors with conservator for rail vehicles;
German version CLC/TS 50537-4:2010
Class/Status:
Standard,
valid
Released: 2011-04
VDE Art. No.: 0115155