Electric Power Fittings High Strength Aluminum Alloy Bolted Strain
*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
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
1) clamp high strength, grip strength and reliability. Wire clip
grip strength is not less than 95% CUTS (stranded wire tensile
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
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.
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
2) Insulation cover and strain clamp used together for insulation
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
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;
Conductor dia (mm)
U Type Bolt Numbers
Rated failure load (kN)
*The body is made of high-strength aluminium alloy
*Smooth surface long servile life
*No waste electric energy