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China, Chinese Nx Series Wedge-Type Cable Clamps for 110kv Transmission Lines1 Industrial Products Supplier Manufacturer Details, price list catalog:
China Industrial Products Supplier Manufacturer List Catalog
Power Supply DistributionElectric Power FittingNx ClampsNx Cable Clamps
Chongqing Zexing Electrical Equipment Co., Ltd.
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Product Description Product DescriptionOur NX Series Wedge-type Cable Clamps are a critical solution for overhead power transmission and distribution networks, engineered to deliver superior gripping force and long-term stability through their precision wedge design. Built to meet the stringent demands of high-voltage and heavy-load power systems, these clamps combine mechanical efficiency with durable performance, making them an essential component for secure conductor fastening in complex electrical infrastructures.Core Features1.Wedge-driven Self-locking MechanismAdopts a precision-machined wedge-and-sleeve structure that generates progressive clamping force as tension increases, ensuring an automatic, loosening-free grip on conductors. With a nominal tensile load capacity of ≥18kN, it effectively resists slippage caused by wind gusts, thermal expansion, or long-term operational stress-outperforming standard clamps in high-tension scenarios like long-span lines or steep terrain.2.Enhanced Durability & Corrosion ResistanceConstructed from high-strength alloy steel (Q345) for superior mechanical toughness, with a multi-layer anti-corrosion treatment: hot-dip galvanizing (zinc layer thickness ≥100μm) as standard, plus optional double-layer epoxy coating for extreme environments (e.g., coastal salt spray, industrial chemical zones). It passes 1500-hour neutral salt spray testing, withstands temperatures from -50oC to 90oC, and guarantees a service life of over 20 years.3.Broad Conductor AdaptabilityDesigned to accommodate a wide range of power conductors, including high-strength ACSR (steel-cored aluminum), aluminum alloy conductors (AAAC), and galvanized steel strands. It supports conductor outer diameters from 12.0mm to 42.0mm, compatible with 220kV-1000kV ultra-high voltage (UHV) transmission lines and conductor cross-sections of 50mm2-1200mm2, eliminating the need for multiple clamp variants in large-scale projects.4.Efficient, Damage-free InstallationEquipped with a pre-assembled wedge system and anti-scratch silicone liner to protect conductor surfaces. Installation requires only basic hand tools (no specialized equipment), with each unit taking 4-6 minutes to secure-thanks to the self-centering design that ensures uniform force distribution. The integrated torque indicator prevents over-tightening, reducing on-site errors and labor costs.5.Application ScenariosIdeal for high-tension conductor fastening across diverse demanding environments:Terrain-specific projects: Mountainous long-span lines, valley crossings, and coastal UHV corridors (resisting strong winds and salt corrosion).Grid types: New UHV transmission networks, inter-regional power links, and heavy-duty industrial power systems (e.g., steel mills, power plants).Special needs: Lines with large conductor cross-sections (≥630mm2) or areas requiring frequent maintenance-free operation (e.g., remote substations).Why Choose Our NX Series Wedge-type Cable Clamps?We don't just supply clamps-we deliver engineered solutions tailored to the most challenging power infrastructure needs, backed by four pillars of excellence:1.Uncompromising Quality for High-stakes OperationsEvery NX clamp undergoes rigorous testing: tensile load verification (≥18kN), extreme temperature cycling, and corrosion resistance trials, with full batch traceability via unique serial numbers. Our alloy steel meets ASTM A572 standards, and galvanizing exceeds GB/T 13912, ensuring zero premature failure in critical lines.2.Expertise in Wedge TechnologyWith 20+ years specializing in wedge-type design, our engineers customize solutions for unique demands: adjusted wedge angles for ultra-large conductors, enhanced coatings for chemical zones, or modified sleeve lengths for tight installation spaces. We provide pre-project compatibility reports to avoid mismatches.3.End-to-end Support That Delivers Peace of MindFrom pre-sales: free conductor matching analysis to optimize clamp selection. During orders: flexible delivery (partial shipments, expedited logistics) to align with construction timelines. Post-purchase: 24/7 technical support (response within 1 hour) and a 20-year warranty covering material or manufacturing defects.4.Trusted in Global UHV LandmarksOur NX clamps secure conductors in flagship projects: China's 1000kV UHV Yangtze River crossing, Southeast Asia's tropical coastal grids, and Middle Eastern desert power links. Repeat orders from top utilities and EPCs (e.g., State Grid, Siemens Energy) validate our ability to perform where reliability matters most.Choose NX Series-where precision wedge design meets unwavering durability, powering the next generation of transmission networks.Product ParametersNX Series Wedge-type Cable Clamps - Product Parameters ModelApplicable Stranded Wire Diameter (mm)Main Dimensions (mm) Nominal Breaking Load (kN)Reference Weight (kg)Applicable Voltage Level CMLR NX-16.6~7.818161506.0451.1910kV-110kVNX-29.0~11.020181807.3881.76110kV-220kVNX-313.0~14.025241958.01433.20220kV-500kVNX-415.0~16.030272208.01644.60500kV-750kV Detailed Photos Other Products From CZEECompany ProfileChongqing Zexing Electric Equipment is a leading manufacturer and exporter specializing in a wide range of high-quality electrical equipment. With a strong presence in the global market, we provide advanced solutions for power transmission, distribution, and management. Our product portfolio includes transformers, electric equipment, and other related electrical components, all designed to meet international standards of quality, safety, and efficiency.Our company is committed to delivering reliable, energy-efficient, and cost-effective solutions that cater to diverse industries, including power generation, construction, and infrastructure development. Backed by a team of experienced engineers and technicians, we pride ourselves on our ability to provide customized products tailored to specific customer needs, ensuring superior performance and longevity.Chongqing Zexing Electric Power Equipment operates a modern and well-equipped manufacturing facility, which spans a large area. The factory is designed to meet industry demands for high-quality electric power equipment, featuring advanced production lines and rigorous testing systems. With a focus on innovation and efficiency, the factory is equipped with state-of-the-art machinery and skilled workers to ensure the production of reliable and durable products. Zexing Electric Power Equipment's manufacturing process adheres to strict international standards, enabling the company to supply its customers with top-tier products and services.Chongqing Zexing Electric Power Equipment is committed to providing high-quality electrical equipment with certifications that meet international standards. The company holds various certificates, including ISO 9001 for quality management, ISO 14001 for environmental management, and CE certification for product safety and compliance. These certifications validate the company's dedication to maintaining strict quality control, environmental sustainability, and meeting the highest safety standards, ensuring the reliability and efficiency of its products.Manufactured in compliance with IEC 60947-3 standards, our DC isolation switches ensure high safety and durability. Compact design, easy installation, and excellent electrical performance make them a reliable choice for both residential and commercial projects.OEM and customized specifications are available upon request. Contact us for more details and product catalogs.Packaging & ShippingTo ensure the safe delivery of your Isolation Switch, we use high-quality wooden crates for packaging. Each unit is securely packed to prevent damage during transit and handling.FAQ1.What is an NX Series wedge-type cable clamp?An NX Series wedge-type cable clamp is a specialized hardware component for overhead power transmission and distribution lines, featuring a precision-machined wedge-and-sleeve structure that enables self-locking fastening of conductors. It is engineered to transfer conductor loads and prevent slippage under tension, with no need for external enclosures. Available in four models (NX-1 to NX-4) with nominal breaking loads ranging from 45kN to 164kN, it secures conductors against environmental stress (e.g., wind vibration, thermal expansion) and maintains stable operation of power lines-making it critical for both routine fixation and emergency defect repair.2.What are the typical application scenarios of NX Series wedge-type cable clamps?NX Series clamps are widely used in medium-to-ultra-high voltage (220kV to ±800kV) overhead power systems, various scenarios:Diverse terrains: Mountainous long-span lines (e.g., Chongqing's ±800kV Jian-Su UHV line), remote rural areas with difficult access, and plain distribution networks-especially where conductor load transfer is needed.Grid projects: New UHV inter-regional transmission networks (e.g., Guangdong 500kV bay area grid), 10kV-35kV rural power grid renovations, and urban distribution line upgrades.Special environments: Lines requiring live-line defect elimination (e.g., repairing conductor strand breakage), high-tension segments, and scenarios where rapid load transfer is critical to avoid power outages.3.How to select the right NX Series wedge-type cable clamp for a specific project?Selection depends on 4 key factors aligned with project requirements:Conductor outer diameter: Match the clamp model to the conductor size-e.g., NX-1 for 6.6~7.8mm wires, NX-4 for 15.0~16.0mm conductors (per product parameters).Line tension demand: Choose models based on nominal breaking load-NX-3 (143kN) or NX-4 (164kN) for high-tension lines, NX-1 (45kN) for low-to-medium tension distribution lines.Environmental adaptability: For coastal or industrial zones, select clamps with enhanced anti-corrosion treatments (complementary to the base material's durability) to extend service life.Voltage grade: Confirm compatibility with line voltage-NX Series suits 10kV rural grids up to ±800kV UHV transmission systems, as validated in practical projects.4.What are the key points for safe and effective installation of NX Series wedge-type cable clamps?Proper installation follows these critical steps:Pre-installation check: Verify the wedge and sleeve components are intact (no deformation or wear); confirm the model matches the conductor diameter (e.g., NX-2 for 9.0~11.0mm wires).Positioning: Install at intact conductor segments adjacent to defects (for repair) or specified tension nodes (for new lines), ensuring alignment with the conductor's tension direction.Secure fastening: Insert the conductor into the sleeve, drive the wedge to achieve self-locking-no over-tightening required (the wedge structure automatically enhances grip under tension). Use standard hand tools (no specialized equipment needed).Post-installation inspection: Check that the wedge is fully seated, the clamp bears load evenly, and the conductor shows no damage. For defect repair, confirm load has transferred from damaged to clamped segments.
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