Product Introduction

NLL-2 Bolt Type Dead End Clamp (2-U-Bolt Aluminum Strain Clamp)
Suitable for conductor cross-sections of 50–95 mm², this premium NLL-2 Bolt Type Dead End Clamp is one of the most widely used dead-end line connectors in standard 10kV power distribution networks. It is masterfully engineered for securing aluminum stranded wires (AAC) and steel-core aluminum stranded wires (ACSR) on urban and rural main power infrastructure.
Manufactured from high-grade aluminum alloy with a reliable two-bolt mechanical locking mechanism, it offers rapid, straightforward field installation without requiring specialized hydraulic crimping tools. It represents the preferred, cost-effective hardware for tension anchoring in standard utility distribution networks and is extensively trusted in global power grid renovation projects.

Technical Parameters

Check the verified dimensions below to select the exact 2-bolt Aluminum Dead End Clamp specifications required for your overhead distribution network:

Model	Applicable stranded wire diameter (mm)	Main dimensions(mm)		Number of U-shaped screws	Nominal breaking load(kN)	Quality(kg)	Material
Model	Applicable stranded wire diameter (mm)	Main dimensions(mm)		Number of U-shaped screws	Nominal breaking load(kN)	Quality(kg)	Material
		M	C
NLL-1	8.0～12.0	16	18	2	40	1.5	Aluminum Alloy
NLL-2	11.0～16.0	16	18	2	60	1.8	Aluminum Alloy
NLL-3	15.0～20.0	16	27	3	70	2.5	Aluminum Alloy
NLL-4	19.0～24.0	18	30	3	90	3.5	Aluminum Alloy

Detailed technical parameters

NLL-2 Bolt Type Dead End Clamp

NLL-2 Conductor Range: Calibration-optimized for medium-size overhead cables, flawlessly accommodating an applicable stranded wire diameter range of 11.0–16.0 mm (ideal for standard 50-95mm² ACSR specifications).

2-U-Bolt Structural Specs: Features an advanced structural design with an M16 bolt size and a 28mm internal channel width (C value). Secured by 2 heavy-duty U-shaped bolts to provide even, highly reliable contact pressure.

Certified Tensile Strength: Delivers a rated nominal breaking load of 60 kN at a structural unit weight of 1.8 kg, guaranteeing exceptional mechanical safety against line vibrations and atmospheric dynamic tension without strand damage.

Product Features

Key Features of NLL-2 Bolt Type Dead End Clamps

High-Conductivity Premium Aluminum Alloy: One-piece die-cast from premium aluminum profiles, providing the perfect synergy of lightweight handling, heavy mechanical toughness, and excellent current-carrying capacity.

Precision Wave-Contoured Channel: Features precision-milled internal cable grooves that tightly conform to stranded wire surfaces. The 2-U-bolt heavy locking mechanism maximizes friction to deliver an ultra-secure grip, completely preventing conductor slippage.

Professional Weatherproof Protection: The core aluminum alloy body undergoes a specialized surface anodized treatment, paired with hot-dip galvanized (HDG) steel bolts for maximum resistance against outdoor moisture, rust, and salt-spray corrosion.

Grid-Certified Compliance Standards: Fully complies with international and national technical requirements for electrical hardware (GB/T 2314, GB/T 2315, DL/T 764). Thoroughly factory-tested for temperature rise and ultimate load to ensure safety in utility-grade grid distribution.