Transformers; three-phase oil immersed transformers with off-circuit tap-changer or with on-load tap-changer 12500 to 80000 kVA for 50 Hz and U<(Index)m> up to 123 kV; requirements and accessories— 12 стр.
Lubricants and Related Materials; Designation of the Lubricants and Marking of Lubricant Containers, Lubrication Equipment and Lubrication Points— 6 стр.
Safety devices for gas supply installations operating at working pressures up to 100 bar; pressure relief governors and safety shut-off devices— 15 стр.