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Rated Voltage: 250KV
Application: Low Voltage
Model Number: ANSI 55-1, ANSI 55-5
Place of Origin: China (Mainland)

Specifications

Porcelain Pin type insulator is made by wet process porcelain used for 6kV to 36kV overhead and poles, usually installed with insulator pin / spindle on wood and iron cross arms. Porcelain Pin type insulator consists of one or more porcelain units and insulator end fittings. Using the performed wire fixed Porcelain pin type insulators on the electrical poles, distribution overhead lines and other electrical systems. A pin insulator is an insulator having means for rigid mounting on a separable pin.

Orient Power is a professional pin insulator manufacturer in China, also produces other type pin insulator, you can read and download the porcelain pin type insulator to learn more.


ANSI 55series porcelain pin type insulator drawings, images and main technical data are showing as follow:
Low Medium Voltage 555 ANSI 551 Porcelain Pin Type Insulator

Type
Creepage distance-mm 102 127 178 229 305
Flashover
voltage-kV 		Power frequency Dry 35 45 55 65 80
Wet 20 25 30 35 45
50% impulse Pos. 50 70 90 105 130
Neg. 70 85 110 130 150
Radio influence
voltage 		Test voltage to ground-KV 5 5 10 10 15
Max. RIV at 1000kHz-μv 50 50 50 50 100
Low freq. Puncture voltage-kV 50 70 90 95 115
Dry arcing distance-mm 57 86 114 127 159
Cantilever failing load-lb/KN 3000/13 2500/11 2500/11 3000/13 3000/13
ANSI 56 series porcelain pin type insulator drawings, images and main technical data are showing as follow:
Low Medium Voltage 555 ANSI 551 Porcelain Pin Type Insulator


Type
Creepage distance-mm 330 432 533 686 865
Flashover
voltage-kV 		Power frequency Dry 95 110 125 140 175
Wet 60 70 80 95 125
50% impulse Pos. 150 175 200 225 270
Neg. 190 225 265 310 340
Radio influence
voltage 		Test voltage to ground-KV 15 22 30 30 44
Max. RIV at 1000kHz-μv 100 100 200 200 200
Low freq. Puncture voltage-kV 130 145 165 185 225
Dry arcing distance-mm 178 203 229 279 356
Cantilever failing load-lb/kN 2500/11 3000/13 3000/13 3000/13 3000/13

Low voltage pin insulator is tested in accordance with ANSI C29.1 standards. The pin insulator drawings, images and main technical data are showing as follow:

ANSI Class
Main dimension, mm D 80 95 80 95 95
H 85 89 87 97 100
D1 42 50 42 50 50
d - - 19 22 22
d1 16 16 21 24 24
a 38 43 38 41 41
b 38 32 30 35 35
r 17.5 14 9 14 10
Leakage distance, mm 120 140 120 140 130+30
Minimum breaking load, KN 12.5 12.5 12.5 12.5 12.5
One minute with stand voltage wet, kV 10 10 10 10 10
Weight, kg 0.4 0.57 0.4 0.55 0.625

BS porcelain pin Insulator main technical parameters:
Low Medium Voltage 555 ANSI 551 Porcelain Pin Type Insulator
Low Medium Voltage 555 ANSI 551 Porcelain Pin Type Insulator
Type
Nominal voltage-kV 11 15 22 33 15 22 33
Creepage distance-mm 255 298 432 630 432 673 900
Low frequency
voltage-kV 		Dry flashover 75 80 110 130 100 125 140
Wet flashover 50 55 70 95 65 95 110
Dry withstand 65 70 100 125 90 110 125
Wet withstand 45 50 65 90 60 90 100
Puncture 135 150 160 210 140 180 200
Impulse Flashover-kV Pos. 115 130 175 215 150 190 210
Neg. 150 175 225 290
Radio influence voltage Test voltage to ground-KV 15 15 22 30 22 30 44
Max. RIV at 1000kHz-μv 100 100 100 200 100 200 200
Cantilever failing load-kN 11 11 11 13 11 11 11

AS ceramic pin type Insulator main technical data:

Low Medium Voltage 555 ANSI 551 Porcelain Pin Type InsulatorLow Medium Voltage 555 ANSI 551 Porcelain Pin Type Insulator
AS class
Nominal voltage, kV - 11 11 22
Creepage distance, mm - 180 275 420
Dimensions, mm H 91 107 152 168
h 32.5 40 46 63.5
D 52 140 136 228
d 48 76 76 113
R1 11 16 6 16
R2 11 13 13 13
Cantilever strength, kN 7 7 7 7
Power frequency withstand voltage Dry, kV - 60 60 80
Wet, kV - 32 32 60
Critical impulse withstand, kV - 95 95 150
Power frequency puncture voltage, kV - 95 95 130
Net weight, each, approx., kg 0.8 1.2 1.8 5.3

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