NLL series bolt type clamp

address : YantaiQixiaTaocunindustrial park



High Strength Electric Power Fittings Aluminum Alloy Bolted Strain Clamp

Electric Power Fittings High Strength Aluminum Alloy Bolted Strain Clamp

 Quick Detail Of Aluminum Alloy Strain Clamp:


* 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 Of Aluminum Alloy Strain Clamp:


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 Of Aluminum Alloy Strain Clamp:


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 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 Of Aluminum Alloy Strain Clamp:


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;

Factory information

Shandong Ludian Line Equipment Co., located in beautiful and affluent Yantai, Shandong province. The company started producing electric power fittings in 1987. The predecessor is affiliated company of Shandong Yantai Qixia Power Supply Company. The company reformed in 1998. The company produces and operates electric power fittings, iron accessories as leading products, and is the processing enterprise integrating scientific research, development, manufacture, trading and service as a whole. Total registered capital is 15 million yuan. Convering an area of 35 mu. Having 120 staffs including 10 senior technical persons and 15 intermediate technical persons. Annual production capacity is more than 6000 t. 

Company adopted ISO9001:2000 International Quality Management Certification in June, 2001. Company is member unit of China electric power enterprise management association line equipment professional committee and is rated as advanced enterprise unit at many times in Qixia, Yantai province.
With an aim of quality first, credit utmost, mutual benefit and untiring service, company warmly welcomes domestic and foreign businessmen to have field trips and negotiate business to commonly write a new chapter of China power development.

Factory products show

High vlotage product power line equipment.


Our company produced 190 series over 2000 include aerial insulation cable fitting,cable fitting,heat shrinkabie accessory,cable branch box,isolation zinec oxide arrester,We also have spacer for double conductor,spacer for jumper conductors,spacer for double conductors,arcing horn,FD dampers,FR dampers,FDZ dampers,FF(FD-L)dampers, DB dampers,DBY dampers,FRY dampers,FYH proformed armor rod,FLD alumimium armor tape.ZC type counter weights pieces,suspension counter weight aluminium and acce The conductor can be enwound by aluminium tapes as installing dampers and spacers onto it.and so on.

We are manufacture of power line product,we have all the series of high voltage substation fitting.

The output is big, the delivery date is short

We can produce according to customer's request

welcome to our factory!

phone number

+86 15589626936

e-mail address

location address

YantaiQixiaTaocunindustrial park

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