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LINE POST INSULATORS

10.0~100.0 USD
Min. Order: 2000 Piece/Pieces
Payment Terms: T/T
Supply Ability: 50000
Place of Origin: Fujian

Company Profile

Location: China (Mainland)
Business Type: Manufacturer, Trading Company, Distributor/Wholesaler

Product Detail

Means of Transport: SHIPPING
Production Capacity: 50000
Packing: CARTON
Delivery Date: 30 days after order
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Product Description

Class ANSI
33KV Pin type porcelain insulator for high voltage lines
Color : Brown
Excellent quality, reasonable price, prompt delivery



ANSI Class
With long stud
57 -1L
57-2L
57-3L
57-4L
With short stud
57-1S
57-2S
57-3S
57-4S
Leakage distance/in mm
14 356
22 559
29 737
1015
Dry arcing distance/in mm
6 1/2 165
9 1/2  241
12 1/4 311
368
Cantilever strength/lb kN
2800 12.5
2800 12.5
2800 12.5
12.5
Fig. No
1
2
3
4
Average flashover voltage
Low-frequency
Dry/kV
80
110
125
150
Wet/kV
60
85
100
125
Critical-impulse
Positive/ kV
130
180
210
255
Negative/ kV
155
205
260
340
Radio-influence voltage date
Test voltage to Ground/ kV
15
22
30
44
Maximum RIV at 1.000kc/μV
100
100
200
200
For ANSI Class
57-1S
57-1L
57-2S 3S 4S
57-2L 3L 4L
 
 
Main dimensions steel stand mm
A
1 3/4 44.5
7 178
1 3/4 44.5
7 178
B
1 7/16 36.5
4 1/2  114
1 7/16 36.5
4 1/2  114
C
1 7/32 31.0
1 7/32  31.0
1 7/32 31.0
1 7/32  31.0
D
3/4
3/4
3/4
3/4
E
5/8
5/8
3/4
3/4
 
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