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

Pin insulators Needle 55 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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Product Detail
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Pin insulators Needle 55 series

1.Strong aging resistance
2.Long service life
3.Reasonable price
4.Porcelain uniform
5.Nice Appearance
6.Superior properties of high and low tempreture resistance,
mechnical capability, electrical function.

Class ANSI 55-1 55-2 55-3 55-4 55-5 55-6 55-7
Glaze A:plain, B: Radio freed A/B A/B A/B A/B A/B A/B A/B
  H 89 82.6 95.3 111.2 123.9 140 140
  h 44.5 38.1 38.1 44.5 50.8 57 57
Main dimension(mm) D 82.6 95.3 120.7 140 177.8 213 213
d 25.4 25.4 25.4 25.4 25.4 25.4 35
R1 - 16 14.3 25.4 25.4 25.4 25.4
R2 13 16 14.3 14.3 14.3 16 16
Nominal voltage/kV 3 6 10 10 15 22 22
Creepage distance/mm 102 127 178 229 305 381 381
Power frequency-Dry/kV 35 50/45 65/55 70/65 85/80 100 100
Power frequency-Wet/kV 20 25 35/30 40/35 45 50 50
Critical impulse-Positive/kV 50 75/70 100/90 110/105 140/130 150 150
Critical impulse-negative/kV 70 95/85 130/110 140/130 170/150 170 170
Radio influence voltage-test voltage to ground/kV 5 5 10 10 15 22 22
Radio influence voltage-maximum RIV at 1000Hz-uV 2500/50 2500/50 5500/50 5500/50 8000/100 8000/100 8000/100
Low frenquency puncture voltage agerage/kV 50 70 90 95 115 135 135
Dry arcing distance/mm 57 86 114 127 159 203 203
Cantilever failing load/lb 3000 2500 2500 3000 3000 3000 3000


 

 

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  • Lisa 10:12 AM, Today
    Hello, dear sir/madam, welcome to our website! I’m Lisa,how should I address you?