Wedge Type Tension Clamp - NES Series (B1, B2, B3, B4)

Wedge Type Tension Clamp – NES Series (B1, B2, B3, B4)

Key Features:

  • Hot-dip galvanized steel construction

  • UV-resistant fiberglass reinforced cleats

  • Tool-free wedge-type installation

  • Compatible with ABC and fiber optic cables

  • Gentle grip protects cable sheath

  • Suitable for wooden, concrete & metal poles

  • Weather and corrosion resistant

  • Cost-effective and space-saving design

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Telexc presents the NES Series Wedge Type Tension Clamp – an engineered dead-end solution for securing round aerial bundled cables (ABC) and fiber optic cables in overhead applications. Designed for exceptional durability and performance, these clamps provide reliable anchoring for 2-core and 4-core cables with cross-sections from 25-150mm².

Product Specifications

Materials & Construction

  • High-strength aluminum alloy & stainless steel components

  • Nylon fiberglass reinforced insulating elements

  • Hot-dip galvanized steel plates for corrosion resistance

  • UV-resistant synthetic cleats for outdoor durability

Applicable Environmental Conditions:

  1. Operating Temperature:
    • Wide operating temperature: -50°C to +90°C
  2. Humidity Tolerance:
    • Capable of withstanding relative humidity levels up to 95% non-condensing, suitable for use in both dry and humid environments.
  3. UV Resistance:
    • The clamp’s materials are rated for UV resistance, ensuring they can endure prolonged exposure to sunlight without degradation.

  • Installation Guide

  1. Cable Identification: Select the appropriate NES Series Anchoring Clamp based on the LV cable specifications.
  2. Clamp Positioning: Place the clamp at the desired location on the cable, ensuring proper alignment.
  3. Clamp Securement: Use the clamp’s locking mechanism to grip the cable tightly, ensuring a firm hold.
  4. Verification: After installation, verify that the clamp is locked in place and is providing stable support to the cable.

Complete Package Includes:

  • HDG steel plates

  • UV-resistant synthetic cleats

  • Carriage bolts with spring washers

  • Hex bolts with stainless steel lock nuts

  • Comprehensive installation guide

Model Cable Range Core Capacity MBL Rating Application
NES-B1 16-35mm² 2 or 4-core 25kN Light Duty
NES-B2 50-120mm² 2 or 4-core 50kN Medium Duty
NES-B3 25-120mm² 2 or 4-core 50kN Medium Duty
NES-B4 95-150mm² 2 or 4-core 50kN Heavy Duty
Wedge Type Tension Clamp
Wedge Type Tension Clamp

Telexc NES Series Anchor Clamps combine engineering precision with robust construction to deliver unmatched performance in overhead cable installations. Trusted by utility companies and telecommunications providers worldwide for critical infrastructure projects.

Wedge Type Tension Clamp
Wedge Type Tension Clamp

NES Series Wedge Type Tension Clamps – Technical Specifications

Cable Type

Round, 2 or 4-core

Standard

NF C 33-041

NF C 33-042

Testing

BS EN 50483-3

Plate

HDG Steel

Cleat

UV resistance and fibreglass-reinforced synthetic

Carriage bolt and nut

HDG steel

Hex. bolt

HDG steel

Lock nut

Stainless steel

Model/ Cat No.

Cable Size (mm²)

Cross-Section Range (mm2)

Min-Max Diameter (mm)

MBL (kN)

Weight (kg)

Core Capacity

 

Applications

NES-B1

16-35

4×(16-35)

7-11

25

0.800

2/4-core

Light Duty

NES-B2

50-120

4×(50-120)

11-17

50

1.300

2/4-core

Medium Duty

NES-B3

25-120

4×(25-120)

8-17

50

1.500

2/4-core

Medium Duty

NES-B4

95-150

4×(95-150)

14.5-19

50

1.700

2/4-core

Heavy Duty

Cable Compatibility & Applications

 
Model Cable Type Min Diameter Max Diameter Min Cross-section Max Cross-section
NES-B1 Round, 2 or 4-core 7mm 11mm 16mm² 35mm²
NES-B2 Round, 2 or 4-core 11mm 17mm 50mm² 120mm²
NES-B3 Round, 2 or 4-core 8mm 17mm 25mm² 120mm²
NES-B4 Round, 2 or 4-core 14.5mm 19mm 95mm² 150mm²

 Applications:

  1. Low-Voltage Power Distribution: Utilized in low-voltage power distribution networks to secure ABC cables, ensuring a reliable electricity supply to residential, commercial, and industrial areas.
  2. Overhead Line Construction: Employed in overhead line construction for anchoring and tensioning of cables along the power transmission and distribution routes.
  3. Street Lighting Systems: Used to anchor cables in street lighting systems, providing secure fastenings for both the main power lines and the lighting fixtures.
  4. Renewable Energy Installations: Applied in solar or wind energy farms to anchor cables, supporting the integration of renewable energy into the power grid.
  5. Infrastructure and Utility Projects: Deployed in various infrastructure projects like smart grid installations, where secure and reliable cable anchoring is essential. 

Product Advantages

  1. NF C 33 042 Certified
    Complies with international standards for safety and performance assurance.

  2. Quick-Connect Bail
    Easy-open design enables fast mounting to brackets and pigtails.

  3. Tool-Less Installation
    Integrated sliding wedges allow instant setup without tools.

  4. Weatherproof Construction
    High-grade plastic ensures durability in harsh outdoor conditions.

  5. Sunlight Resistant
    UV-protected material prevents degradation from sun exposure.

FAQs – NES Series Wedge Type Tension Clamps

Q1: What types of cables are compatible with the NES Series clamps?
NES Series clamps are designed for round Aerial Bundled Cables (ABC) and fiber optic cables, supporting 2-core and 4-core configurations with conductor cross-sections ranging from 25 mm² to 150 mm² (model dependent).

Q2: How do I select the correct NES model for my application?
Selection depends on cable cross-section and required mechanical load:

  • NES-B1: 16–35 mm² (Light duty, 25 kN)

  • NES-B2 / NES-B3: 25–120 mm² (Medium duty, 50 kN)

  • NES-B4: 95–150 mm² (Heavy duty, 50 kN)

Q3: Are these clamps suitable for extreme climates?
Yes. NES Series clamps operate reliably between –50°C and +90°C, tolerate up to 95% relative humidity (non-condensing), and feature UV-resistant materials for long-term outdoor exposure.

Q4: Do NES Series clamps require special tools for installation?
Standard hand tools are sufficient. No specialized or proprietary tools are required.

Q5: Are the clamps corrosion resistant?
Yes. They incorporate hot-dip galvanized steel plates, stainless steel fasteners, and corrosion-resistant aluminum alloy, making them suitable for industrial, coastal, and humid environments.

Q6: Can the clamps be used for both electrical and telecom applications?
Yes. They are suitable for LV ABC distribution lines as well as fiber optic cable anchoring in overhead networks.

Q7: What is the Maximum Breaking Load (MBL) of the NES Series?
Depending on the model, MBL ratings range from 25 kN to 50 kN, ensuring secure dead-end anchoring in demanding installations.

Q8: Is the clamp electrically insulated?
Yes. Nylon fiberglass reinforced insulating elements provide electrical insulation and added safety in live-line environments.

Q9: What components are included in the standard package?
Each package includes HDG steel plates, UV-resistant synthetic cleats, carriage bolts with spring washers, hex bolts with stainless steel lock nuts, and a comprehensive installation guide.

Q10: Does Telexc offer customization or OEM solutions for the NES Series?
Yes. Telexc supports OEM and ODM customization, including material adjustments, branding, and project-specific technical requirements.

Our Services

  1. Rich experience in ODM & OEM production
  2. Excellent one-stop solution for telecom and power hardware
  3. High-quality precision casting and forging capabilities
  4. Factory-direct pricing with fast delivery
  5. Strict quality control and inspection at every stage
  6. Warm welcome to visit our factory for cooperation opportunities

About Us

Telexc is a high-tech enterprise specializing in the manufacturing of hardware equipment for the telecommunications and electric power sectors. With production and sales centers in Tianjin and Hebei, China, our products are successfully operating in over 30 countries and have been trusted in power systems for more than 20 years. We are an approved and certified supplier to major telecom companies worldwide and have earned excellent references from numerous utility departments. Our facilities are equipped with modern machinery, advanced testing equipment, and a skilled engineering team.
TTF TELE is certified under:

  • ISO 9001(Quality Management)
  • ISO 14001(Environmental Management)
  • ISO 45001(Occupational Health & Safety)

With innovation, reliability, and customer satisfaction at our core, Telexc continues to lead the way in transmission and telecommunication line hardware manufacturing.

Why Choose Telexc

  • Over 20 years of experience in power and telecom line hardware

  • Trusted supplier to major global utilities and telecom operators

  • Strong ODM & OEM production capabilities

  • Advanced precision casting and forging technology

  • Strict quality inspection at every manufacturing stage

  • Factory-direct pricing with fast and reliable delivery

  • Products successfully deployed in 30+ countries worldwide

Telexc delivers reliable, standards-compliant anchoring solutions engineered for safe and long-term operation of modern LV-ABC power distribution networks.

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