ANSI Standard 57-1 57-2 57-3 Line Post Insulator Ceramic Electric Insulator
ANSI Standard 57-1 57-2 57-3 Line Post Insulator Ceramic Electric Insulator image
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Basic Info.
Product Description
Line post type porcelain insulators
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ANSI Class
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57-1
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57-2
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57-3
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57-4
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57-5
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Dimensions
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Creepage distance
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mm
|
356
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559
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737
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1015
|
1145
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Dry arcing distance
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mm
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165
|
241
|
311
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368
|
438
|
Mechanical Values
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Cantilever strength
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kn
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12.5
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12.5
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12.5
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12.5
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12.5
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Cantilever strength routine test
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kn
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5
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5
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5
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5
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5
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Electrical Values
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Type application voltage
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kv
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25
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35
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45
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55
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66
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Low frequency dry flashover voltage
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kv
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80
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110
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125
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150
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175
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Low frequency wet flashover voltage
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kv
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60
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85
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100
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125
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150
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Critical impulse flashover voltage,positive
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kv
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130
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180
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210
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255
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290
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Critical impulse flashover voltage,negative
|
kv
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155
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205
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260
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340
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380
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Radio influence Voltage Data
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||||||
Test voltage RMS to ground
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kv
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15
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22
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30
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44
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44
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Maximum RIV at 1000kHz
|
μv
|
100
|
100
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200
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200
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200
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Packing and Shipping Data
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||||||
Net weight,approximate
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kg
|
5.2
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9.0
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11.0
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16.0
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18.0
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High voltage line rod insulator is used as insulation and supporting conductor in high voltage transmission and distribution line. The product is a non breakdown structure and has the advantages of high mechanical strength, strong insulation performance and good pollution resistance. The insulator has the advantages of safe and reliable operation, simple maintenance, long service life and low line cost.
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