Cross-arm Insulator

It is an electrical equipment integrating insulation and mechanical support functions, mainly used for fixing conductors and electrical isolation in overhead transmission lines. And it is commonly found in narrow corridor reconstruction and capacity-increasing reconstruction of old 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.
 
Type Rated 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 – 10/2.5 10 2.5 460 320 400 150 60
FS – 10/5 10 5 460 320 400 150 60
FS – 10/8 10 8 487 320 600 150 60
FS – 35/5 35 5 620 450 1050 230 95
FS – 35/8 35 8 630 450 1050 230 95
FS – 66/6 66 6 880 700 2000 410 185
FS – 66/8 66 8 1200 700 2000 410 185
FS – 110/2.5 110 2.5 1210 1030 2520 550 230
FS – 110/5 110 5 1268 1030 3150 550 230
FS – 110/8 110 8 1268 1080 3150 550 230
FS – 110/10 110 10 1268 1080 3150 550 230
FS – 220/2.5 220 2.5 2620 2312 6850 1000 395

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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