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PA25-2 Core Clamp for Cable Tension​

The PA25-2 Core Clamp emerges as a specialized solution for cable tension management in low-voltage (LV) overhead distribution systems, engineered specifically for secure fixation of 2-core service lines.

  • PA25 2-core

  • Mingxu

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Product Overview


Compliant with the NFC 33-042 standard for electrical accessories, this clamp delivers consistent performance in outdoor environments prone to UV radiation, temperature fluctuations, and mechanical stress. Its design prioritizes both reliability and ease of use, making it a preferred choice for utility companies and electrical contractors working on residential, commercial, and industrial power distribution projects. Whether deployed with insulated LV-ABC (Aerial Bundled Cable) or conventional stranded conductors, the PA25-2 maintains stable cable positioning under varying load conditions, ensuring uninterrupted power transmission.


Product Features


Material Composition

Constructed from high-tensile glass fibre reinforced polymer (GFRP) for the main body and hot-dip galvanized steel for stress-bearing components, the PA25-2 achieves an optimal balance between lightweight design and structural integrity. The GFRP material provides exceptional resistance to UV degradation, corrosion, and environmental aging, while galvanized steel reinforcements enhance mechanical strength at critical connection points. This combination ensures long-term durability without adding unnecessary weight to overhead lines.

Performance Specifications

The clamp supports a conductor cross-section range of 2 × (16-25 mm²) and accommodates messenger wire diameters from 4 mm to 8 mm. It delivers a minimum breaking load of 2 kN, providing a safety margin that exceeds typical tension forces encountered in LV service lines. The absence of sharp edges in its design prevents conductor insulation damage during installation and operation, reducing the risk of short circuits or performance degradation.

Installation Advantages

Designed for tool-free assembly, the PA25-2 features an intuitive clamping mechanism that allows for quick positioning and secure fastening. Its modular design enables compatibility with various 2-core conductor configurations, reducing inventory requirements for contractors working on mixed-project sites. The clamp's compact profile minimizes wind resistance, making it suitable for installations in high-wind areas.


Product Applications


Residential Distribution Networks

Ideal for connecting main power lines to residential premises, the PA25-2 secures 2-core service drops in both urban and rural neighborhoods. Its weather-resistant properties make it suitable for coastal areas with high humidity and inland regions with extreme temperature variations.

Commercial Premises Connections

In commercial settings, the clamp provides reliable cable tension management for service lines feeding small businesses, retail establishments, and office buildings. Its low-maintenance design reduces the need for frequent inspections in areas where access may be limited by building structures or landscaping.

Renewable Energy Feeder Lines

The PA25-2 facilitates secure connections in overhead feeder lines for small-scale solar installations and wind turbines, linking renewable energy systems to the main power grid. Its temperature resistance from -40°C to 80°C ensures reliable performance in diverse climatic conditions encountered in renewable energy projects.


FAQ


What types of cables are compatible with the PA25-2 Core Clamp?

The clamp is specifically designed for use with insulated LV-ABC cables and stranded copper or aluminum conductors within the 16-25 mm² cross-sectional range. It is optimized for 2-core configurations commonly found in residential and light commercial service lines.

How often does the PA25-2 require maintenance?

Thanks to its corrosion-resistant materials, the clamp requires minimal maintenance. Visual inspections every 5 years are recommended to check for signs of mechanical damage or conductor movement, but no routine cleaning or component replacement is necessary under normal operating conditions.

Is the PA25-2 compliant with international safety standards?

Yes, the clamp fully complies with the NFC 33-042 standard for electrical accessories in overhead line installations. It is also RoHS-compliant, containing no hazardous substances that could impact environmental or human health.

Can the PA25-2 be used in high-wind areas?

Yes, the clamp's low-profile design and secure clamping mechanism make it suitable for installations in high-wind zones. Its 2 kN breaking load provides sufficient resistance to wind-induced cable movement, ensuring conductor stability during storm conditions.


Item No. Cross section Material Conductor(mm) Brealking load Package(pcs) Gross weight(kg)
PA-25 2×(16-25) Nylon,Steel 4-8 2KN 100 13


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