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Jessie Zhang
Mobile: +86+13974149913
Tel:+86-0731-23810977
Address: Shengshi Huating, Liling City, Hunan Province, China

Pin insulators Needle 56 series
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Description:

The porcelain insulator are used on substation & transmission Line. It helps to support and hand wire, insulation wires against tower.

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Pin insulators Needle 56 series

Class ANSI 56-1 56-2 56-3 56-4 56-5
  H 146 165 191 241 318
  h 50.8 50.8 50.8 50.8 63.5
Main dimension(mm) 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
Leakage distance/in 12 17 21 27 34
Dry arcing distance/in 7 8 9 11 14
Power frequency-Dry/kV 95 110 125 140 175
Power frequency-Wet/kV 60 70 80 95 125
Puncture voltage 130 145 165 185 225
Critical impulse-Positive/kV 150 175 200 225 270
Critical impulse-negative/kV 190 225 265 310 340
Radio influence voltage-test voltage to ground/kV 15 22 30 30 44
Radio influence voltage-maximum RIV at 1000Hz-uV-plain 8000 12000 16000 16000 25000
Radio influence voltage-maximum RIV at 1000Hz-uV-radio freed 100 100 200 200 200
Cantilever strength /lb 2500 3000 3000 3000 3000


 

 

If you have some problems about Pin insulators Needle 56 series, or want to know more details about Porcelain Insulator,Composite Insulator,Power Line insulator,Fuse Cutout,etc. Welcome to contact us!

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