Three-phase oil-immersed distribution transformers 50 Hz, from 50 kVA to 2500 kVA with highest voltage for equipment not exceeding 36 kV - Requirements and tests concerning pressurised corrugated tanks Ingestion-build-264231 and twisted pair cables

and twisted pair cables

resistance to corrosion (when sealed)

additional habitable accommodation in the roof space constitutes a storey of the house

This International Standard specifies the characteristics of fork-ends for rolling bearings

Three-phase oil-immersed distribution transformers 50 Hz, from 50 kVA to 2500 kVA with highest voltage for equipment not exceeding 36 kV - Requirements and tests concerning pressurised corrugated tanks Ingestion-build-264231 and twisted pair cables1 Scope This Part 4 of EN 50464 series is applicable to test procedures to verify the mechanical withstand capability of the corrugated tanks of completely oil filled and hermetically sealed distribution transformers. NOTE Variations of oil temperature due to variations of ambient temperature and loading, result in deformation of tank walls.