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420 KN U420BP/250D double-shed disc suspension porcelain insulator

Product classification:

Suspension porcelain insulators

Keywords:

Pin type insulators


Product Features

Product details


D.C. Disc suspension porcelain insulator
Type U160BP U210BP U300BP U420BP
Coupling size N˙m 20 20/24 24 28
Dimensions
Spacing(H) mm 170 170 195 205
Diameter(D) mm 330 360 360 380
Leakage distance mm 510 545 545 550
Mechanical Values
combined M&E strength kn 160 210 300 420
Routine tensile load kn 80 105 150 210
Electrical Values
D.C. withstand voltage (wet) kv 55 55 55 55
D.C. withstand voltage (Dry) kv 140 140 140 140
D.C. flashover voltage (wet) kv 60 60 60 60
D.C. flashover voltage (Dry) kv 155 155 155 155
Dry lightning impulse withstand voltage kv 140 140 140 140
Puncture voltage in SF6 kv 210 210 210 210
Packing and Shipping Data
Net weight,approximate kg 12.2 14.5 17 21.9

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