NLL series aluminium alloy strain clamp(bolt type) is suitable for aerial line up to 35KV ,fixing aluminium wire or steel-cored aluminium wire on the strain pole, aerial insulation aluminium conductor and insulation aluminium cover are being used together for insulation protection.
| Type | Suitable conductor diameter range(mm) | d | c | l | i | r | Failing load not less than(kN) | Weight(kg) |
| NLD-1 | 5.0-10.0 | 16 | 18 | 150 | 120 | 6.5 | 20 | 1.3 |
| NLD-2 | 10.1-14.0 | 16 | 18 | 205 | 130 | 8.0 | 40 | 2.1 |
| NLD-3 | 14.1-18.0 | 18 | 22 | 310 | 160 | 11.0 | 70 | 4.6 |
| NLD-4 | 18.1-23.0 | 18 | 25 | 410 | 220 | 12.5 | 90 | 7.0 |
Detailed Specifications:
Type | Applicable Conductor | U bolt no. | U bolt diameter | U.T.S (kn) | weight | ||
NLL-1 | 5-11mm | 2 | M12 | 40 | 0.85kg | ||
NLL-2 | 10-16mm | 2 | M12 | 40 | 1.1kg | ||
NLL-3 | 7.7-18.7mm | 3 | M16 | 70 | 2.15kg | ||
NLL-4 | 19-24mm | 4 | M16 | 100 | 3.7kg | ||
NLL-5 | 18-30mm | 5 | M16 | 120 | 6.75kg | ||
NLL-42 | 19-29mm | 3 | M16 | 90 | 3.1kg |
Strucure feature:
1)structure is simple, can be easily installed
2)its legs twisted wire preformed and the formation of air traffic control, rear twist for the preforming ring.The formation of preformed wire legs wrapped in wire can produce a very strong grip force, twist the ring to fix the insulator.
3) The clamp distributing the stress uniformity, improved ability of aseismatic without any damage onconductor. feature:
1.Withstand voltage:≥18KV keep voltage not breakdown in one minute
2. Insulation resistance: >1.0*10(14) Ω
3. Weather proof performance: have good performanced after 1008 hours artifical climate aging test.
Bolt type Strain Clamp
Specification:
1. the strain clamp has four types:NLD-1 NLD-2 NLD-3 NLD-4
2. the strain clamp is hot-dip galvanized steel
