Cross-arm Insulator

This electrical equipment integrates insulation and mechanical support functions, primarily used to fix conductors and provide electrical insulation in overhead transmission lines. It is commonly utilized in narrow corridor redevelopments and capacity-upgrade projects for existing lines.

  • It has excellent electrical performance and strong anti-pollution flashover capability, which can reduce the occurrence of lightning trip accidents.
  • It features high strength and light weight. Compared with traditional porcelain cross-arms or other metal cross-arms, the composite cross-arm insulator hasexcellent anti-seismic and anti-impact performance, and can eliminate brittle fracture accidents.
  • It saves corridor resources. Since itcan effectively utilize narrow corridors for step-up power transmission, it is suitable for urban network technical transformation. And it can reduce the height of poles and towers and narrow the width of transmission line corridors.
  • It is maintenance-free,has a long service lifeand requires no manual cleaning.
 
TypeRated Voltage (kV)Specified Mechanical Bending Load (kN)Section Length (mm)Min Arcing Distance (mm)Min Creepage Distance (U/mm)Lightning Withstand Voltage (kV)Wet Power Frequency Voltage (kV)
FS – 10/2.5102.546032040015060
FS – 10/510546032040015060
FS – 10/810848732060015060
FS – 35/5355620450105023095
FS – 35/8358630450105023095
FS – 66/66668807002000410185
FS – 66/866812007002000410185
FS – 110/2.51102.5121010302520550230
FS – 110/51105126810303150550230
FS – 110/81108126810803150550230
FS – 110/1011010126810803150550230
FS – 220/2.52202.52620231268501000395

This product for the urban net rebuild can effectively solve the shortage of corridor in urban power line; reduce the pole height and economy lots of financial and material resources. Because of the high strength, to avoid the porcelain cross-arm causes to concatenate breakage of high strength accident and fine anti-pollution. And the products of porcelain cross-arm cannot replace it.

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