U70BS/BL, U120BL

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

U70BS
U70BL

70

255

127
146

303

3,4

100

40

25

U120BS

120

255

146

320

3,9

100

40

30