U400BS/BL

Type of insulator
acc. Russian
standard

Ultimate
Mechanical
 Strength of
 insulators,
 KN, not less

Diameter
 of glass
 shed (D),
 mm

Spacing,
 mm

Creepage
distance,
 mm

Weight, kg

Voltage withstand, kV, not less

Impulse

Frequency
50 Hz, wet

Radio
 interference
 level

U400BS
U400BL

400

390

205
220

475

15,0

130

55

40