NLL series bolt-type aluminum alloy tension clamp is for overhead line of 20kV and below, fixing aluminum wire or ACSR on the rod. It is used for overhead insulated aluminum wire with insulation cover for insulatoin protection.
◆The clamp body is made of high strength aluminum alloy；
◆Smooth appearance, long service life；
◆Easy to install；
◆No hysteresis loss, certified energy-saving products。
◆1-10kV power frequency withstand voltage: ≥ 18kV, holding pressure for 1 minute without breakdown；
20kV power frequency withstand voltage: ≥ 30kV, holding pressure for 1 minute without breakdown；
◆Weathering performance: remain good performance after 1008 hours artificial weather aging test.
1.Contact performance: big contact surface between clamp and conductor, constant clamping force, DC resistance ratio between 0.85 ~ 0.9；
2.Overload capacity: overload capacity is more than 2 times bigger than the approved current；
3.Strong performance: high-strength materials, stainless steel bolts fastening, reliable connection, never fall off ；
4.Thermal cycling performance: good thermal cycling performance, always running at DC resistance ratio ∠1；
5.Installation: easy to install and remove, suitable for high altitude operations；
6.Energy-saving performance: use of high-strength materials, special aluminum alloy, no electromagnetic loss, anti-corrosion, anti-oxidation。
|Specifications selectoin table:|