Delivery Time:A week
Certification:ISO9001:2008

Electric Power Fittings High Strength Aluminum Alloy Bolted Strain Clamp

Quick Detail:

*High strength

*For fixed wire to withstand wire tension, and wires are strung to tension or tower on hardware.

*Hardware is Hot-dip galvanized

*The clamp body and keepers are aluminium alloy ,the closed-pin is stainless steel work,the other parts are steel

Description:

NLL Series Al-alloy Strain Clamp is suitable for aerial line up to 35KV, fixing aluminum wire or steel core aluminum wire on the strain pole, aerial insulation aluminium conductor and insulation aluminium cover are being used together,it\'s action is insulation protection.

1) clamp high strength, grip strength and reliability. Wire clip grip strength is not less than 95% CUTS (stranded wire tensile force) calculation.

2) wire clip wire pair uniform stress distribution, do not damage the winding, improve the ability of the winding resistance to vibration, greatly extend the service life of the wire.

3) simple installation, convenient for construction. Can greatly shorten the construction time, without any special tools, one person can complete the operation.

4) clamp installation and reliable in quality, can be tested with the naked eye, don\'t need to be trained.

5) good resistance to corrosion, choose high quality materials. Materials are in complete accord with wire, to guarantee the clamp has stronger electrochemical corrosion resistance ability.

6) optional security ring, effectively solve the security problem

Applications:

Strain clamp is used in the corner, connection, and the terminal connection. Screw the aluminum clad steel wire with a strong tension strength, no stress concentration, the optical fiber cable protection and auxiliary damping effect. A complete set of cable resistance to gold include: pre-paid hinge, form a complete set of hardware connection. Clip grip strength no less than 95% rated tensile strength of the fiber optic cable installation is convenient, fast, reduce the construction cost. Applicable to span 100 meters or less, the line Angle < 25 ° ADSS cable lines.

Strain clamp are used to fix the conductor or ground wire on the perch tension insulator string, the anchor role, also used for the arrows of fixed anchor tower.

Specifications:

 NLL aluminum alloy bolted strain clamp and insulation cover:

1) Be suitable for distribution wire up to 10KV, fixing insulated aluminum conductor or naked aluminum conductor on the rotate angle or insulator of terminal stain pole, to fix and tighten the aerial conductor.

2) Insulation cover and strain clamp used together for insulation protection.

3) Material: body, keeper - aluminum alloy, split pin - stainless steel, others - hot-dip galvanized steel.

4) Grip strength of the clamp more than 65% break strength of the conductor.

Insulation cover performance feature:

1. withstand voltage ≥18KV and keep voltage one min. not breakdown;

2. insulation resistance > 1.0 x 1014  Ω

3. enviromental temperature:30C ~ 90C

4. weather proof performance: with good performance after 1008 hours artificial climate aging test;

Catalogue No.	Conductor dia (mm)	U Type Bolt Numbers	Bolt diameter	Rated failure load (kN)
NLL-1	5.0-10.0	2	12	40
NLL-2	10.1-14.0	2	12	40
NLL-3	14.1-18.0	3	14	70
NLL-4	18.1-23.0	3	14	90
NLL-4L	12.48-21.66	4	16	90
NLL-5L