Strain clamps are used for cornering, splicing, and terminal connections. Spiral aluminum-clad steel wire has extremely strong tensile strength and no concentrated stress, which protects the optical cable and assists in vibration reduction. A complete set of optical cable tension fittings includes: tension pre-twisted wire and matching connection fittings. Strain clamps are used to fix conductors or lightning conductors to non-linear pole tower tension insulator strings to act as anchors.
Product Detail
Classification: conductor tension clamps
1. Pre-twisted conductor tension clamps:
Pre-twisted conductor tension clamps for steel core aluminum stranded wire
Pre-twisted conductor tension clamps for aluminum stranded wire
Pre-twisted conductor tension clamps for insulated wires
2. Pre-twisted ground wire tension clamps:
Pre-twisted ground wire tension clamps for steel stranded wire
Pre-twisted ground wire tension clamps for aluminum-clad steel stranded wire
3. Pre-twisted tension clamps for pull-wires:
Pre-twisted tension clamps for pull-wires for steel stranded wire
Product Parameters
Technical parameters of bolt-type tension clamp (applicable to steel-cored aluminum stranded wire)
| Type | Applicable wire model and outer diameter | Main Dimensions （mm） | U-shaped screw | Destructive load (not less than, kN） | Weight （kg） | |||||
| LGJ | （mm） | c | d | l | l1 | |||||
| NLD-1 | 16～50 | 5.0～10.0 | 18 | 16 | 150 | 120 | 2 | 12 | 18.4 | 1.3 |
| NLD-2 | 70～95 | 10.1～14.0 | 18 | 16 | 205 | 130 | 3 | 12 | 41.0 | 2.1 |
| NLD-3 | 120～150 | 14.1～18.0 | 22 | 18 | 310 | 160 | 4 | 16 | 71.0 | 4.6 |
| NLD-4 | 185～240 | 18.1～23.0 | 25 | 18 | 410 | 220 | 5 | 16 | 91.0 | 7.0 |
Technical parameters of bolt-type aluminum tension clamp (applicable to insulated conductors)
| Type | Applicable cross-section of insulated conductormm2 | Voltage kV | L1mm | L2mm | Tensile limitkN | Weight kg |
| NLLD-1 | 35～50 | 10 | 145 | 75 | 9.6 | 0.54 |
| NLLD-2 | 70～95 | 10 | 163 | 91 | 16.5 | 0.68 |
| NLLD-3 | 120～150 | 10 | 181 | 107 | 24.8 | 0.78 |
| NLLD-4 | 185～240 | 10 | 200 | 125 | 40.5 | 1.1 |
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1) We choose all raw materials to be of high quality.
2) Professional and skilled workers pay attention to every detail in handling the production process.
3) The quality control department is specialized in quality inspection for each process.
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