ANSI 56-3

Porcelain Pin Insulator

Porcelain Pin Insulator: ANSI 56-3

Description

Porcelain insulator includes Suspension type, Pin type, Spool type, Strain/Guy type, Line Post type and Station Post type, which meet IEC, ANSI, AS, BS, etc. standards.

Specifications

Fig. No.12233
ANSI Class56-156-256-356-456-5
Dimension
(mm)
H146165191241318
h50.850.850.850.863.5
D191228267305343
d34.934.934.934.934.9
R11919191919
R21414141414
Nominal voltage (KV)2323354669
Creepage distance (mm)330430533685865
Minimum flashover voltagePower frequencyDry  (kV)95110125140175
Wet (kV)60708095125
50% ImpulsePositive (kV)150175200225270
Negative (kV)190225265310340
Radio influence voltageTest voltage to ground (kV)1522303044
Maximum RIV at 1000kHz/uV100100200200200
Low frequency puncture voltage, average (kV)130145165186225
Dry arcing distance (mm)178210241.3285356
Cantilever failing load (kN)11341360136013601360
Net weight, Each, Approx (kg)3.75.3710.813.5

Drawing

Porcelain Insulator: ANSI 56-3 - Drawing