NLL Old bolt type aluminum alloy tension clamp

NLL series of bolt-type aluminum alloy tension clamp is for overhead lines of 20KV and below, for fixing aluminum wire or ACSR on the rod. It is used for overhead insulated aluminum wire; work with insulation cover to offer ainsulation protection.

Model: : NLL
Brand : : wanxie power
Price: : 0
Description:


NLL series of bolt-type aluminum alloy tension clamp is  for overhead lines of 20KV and below, for fixing  aluminum wire or ACSR on the rod.  It is used for overhead insulated aluminum wire; work with insulation cover to offer ainsulation protection.


Characteristics:


◆The clanp 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;

◆Insulation resistance:> 1.0 × 1014Ω;

◆Ambient temperature: -30 ℃ ~ + 90 ℃;

◆Weathering performance: Keep good performance after 1008 hours artificial weather aging test


Structural features:


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 to 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 installation and disassembly, suitable for high altitude operations;
6.Energy-saving performance, the use of high-strength materials, special aluminum alloy, no electromagnetic loss, anti-corrosion, anti-oxidation。


Specification selection table

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