Features of wedge type strain clamp
● Insulation Performance: Insulation resistance > 1.0×10¹⁴ Ω; power frequency withstand voltage ≥ 18 kV (maintained for 1 minute without breakdown);
● Grip Strength: Not less than 95% of the calculated breaking strength of the conductor, preventing conductor slippage;
● Structure: Wedge-type self-locking design; no specialized crimping tools required; easy installation;
● Insulation Cover Weather Resistance: Maintains good performance after 1,008 hours of artificial climate aging testing;
● Applicable Voltage: Distribution lines rated at 10 kV and below.
Technical Specifications
|
Model |
Applicable Nominal Cross-Section of Aerial Insulated Aluminum Stranded Conductors (mm²) |
Stripping Length (mm) |
Main Dimensions (mm) |
Nominal Breaking Load (kN) |
Material |
|||
|
L |
φ |
R |
B |
|||||
|
NXL-1 |
JKLYK-10, 35~50 |
225 |
145 |
18 |
5 |
16 |
7.4 |
Aluminum Alloy |
|
NXL-2 |
JKLYK-10, 70~95 |
245 |
155 |
18 |
6 |
16 |
14.5 |
Aluminum Alloy |
|
NXL-3 |
JKLYK-10, 120~150 |
255 |
165 |
18 |
8.5 |
16 |
22.1 |
Aluminum Alloy |
|
NXL-4 |
JKLYK-10, 185~240 |
300 |
190 |
18 |
11 |
18 |
36.4 |
Aluminum Alloy |
|
Model |
Applicable Conductor Cross-Section (mm²) |
Grip Strength (kN) |
Nominal Breaking Load (kN) |
Remarks |
|
|
10kV |
20kV |
||||
|
NXL-2J |
35~70 |
25~35 |
6.7 |
10.8 |
Suitable for insulated aluminum conductors |
|
NXL-3J |
95~150 |
50~95 |
13.7 |
22.5 |
Suitable for insulated aluminum conductors |
|
NXL-4J |
185~240 |
120~150 |
22.5 |
36.5 |
Suitable for insulated aluminum conductors |
Customization Services
Direct from the manufacturer, great value for money.
Please feel free to contact us with any inquiries.
We support non-standard customization and can tailor the following based on customer requirements:
● Specification Customization: Clamps for special conductor cross-sections and outer diameters, compatible with non-standard insulated or bare conductors;
● Material Customization: Corrosion-resistant, reinforced aluminum alloy clamps and insulating covers customized according to the operating environment;
● Functional Customization: Clamps with visual inspection, anti-loosening, and anti-theft features to facilitate operation and maintenance monitoring;
● Marking Customization: Laser marking of model numbers, batch numbers, and customer logos to facilitate project traceability; We provide free technical consultation, recommend suitable models and customization solutions based on project requirements, and respond quickly to customization requests.
Production and Quality Control
Our factory & quipment
Factory direct sales,customization services available
◆ Production Control: Utilizing automated stamping and injection molding equipment to achieve standardized mass production; raw materials undergo strict incoming inspections, ensuring that aluminum alloys, insulating materials, and fasteners all comply with relevant national standards, thereby preventing the use of non-conforming materials in production.
◆ Quality Control: Inspection checkpoints are established at every production stage. After forming, we inspect appearance and dimensions; after machining, we calibrate the fit between the wedge core and the body; finished products undergo grip strength testing, insulation performance testing, and weather resistance testing. Non-conforming products are strictly prohibited from leaving the factory, and production batch records are maintained to ensure full product traceability.
FAQ
Q: What is the applicable voltage range?
A: Widely used in 10kV, 35kV, 110kV, and 220kV distribution and transmission lines.
Q: What is the grip strength of the NXL wedge type strain clamp?
A: The grip strength of standard products is no less than 95% of the conductor's rated breaking strength, meeting the requirements for safe line operation.
Q: Does installation require special tools?
A: No, installation can be completed using a standard wrench. For some large-cross-section models, a simple tapping tool may be used to position the clamp.
Q: Can the conductor be removed and reused after installation?
A: Reuse is generally not recommended. Removal may damage the wedge and the conductor, and the grip strength cannot be guaranteed upon reinstallation.
Q: Can NXL clamps be used for cross-arm installation?
A: No, they are primarily designed for terminal and tension anchoring applications. Dedicated cross-arm clamps should be used for cross-arms.
Q: Is a rubber conductor guard required?
A: For large-cross-section and high-stress conductors, it is recommended to install a conductor guard to prevent vibration-induced wear and crushing damage.
brand trusted choice
Our company integrates mold design and R&D, electrical hardware manufacturing, plastic product production, and metal processing, and offers OEM/ODM customization solutions. Adhering to the philosophy of "deep technical expertise and quality first," the company is committed to providing safe, reliable, and customized power distribution products and services for industrial, commercial, and new energy applications.
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