Project Description

  • Porcelain Insulator: ANSI 56-3
  • Porcelain Insulator: ANSI 56-3
  • Porcelain Insulator: ANSI 56-3

Porcelain Pin Insulator: ANSI 56-3

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.

Porcelain Insulator: ANSI 56-3 - Drawing

Fig. No. 1 2 2 3 3
ANSI Class 56-1 56-2 56-3 56-4 56-5
Dimension
(mm)		 H 146 165 191 241 318
h 50.8 50.8 50.8 50.8 63.5
D 191 228 267 305 343
d 34.9 34.9 34.9 34.9 34.9
R1 19 19 19 19 19
R2 14 14 14 14 14
Nominal voltage (KV) 23 23 35 46 69
Creepage distance (mm) 330 430 533 685 865
Minimum flashover voltage Power frequency Dry  (kV) 95 110 125 140 175
Wet (kV) 60 70 80 95 125
50% Impulse Positive (kV) 150 175 200 225 270
Negative (kV) 190 225 265 310 340
Radio influence voltage Test voltage to ground (kV) 15 22 30 30 44
Maximum RIV at 1000kHz/uV 100 100 200 200 200
Low frequency puncture voltage, average (kV) 130 145 165 186 225
Dry arcing distance (mm) 178 210 241.3 285 356
Cantilever failing load (kN) 1134 1360 1360 1360 1360
Net weight, Each, Approx (kg) 3.7 5.3 7 10.8 13.5

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