Preformed Ground Splice

A Preformed Ground Splice is a high-strength, corrosion-resistant splicing device used to permanently join overhead ground wires (e.g., static wires, OPGW, or shield wires) in power transmission networks. Composed of preformed helices made from aluminum alloy or specialty metals, it installs by hand-wrapping around conductor ends, creating a seamless, maintenance-free mechanical and electrical connection.

Material & Structure

Helical rods formed from AA8000-series aluminum alloy or coated steel

Tensile strength ≥85% of the original conductor

Pre-engineered pitch and length for uniform stress distribution

Installation

Tool-free, manual wrapping (no compression/bonding required)

≤5-minute installation time per splice

Visual verification via alignment markers

Performance

Corrosion-resistant (anodized/Zn-Al coated; 30+ year service life)

Vibration damping design for wind-induced fatigue resistance

Stable electrical continuity (<0.05 mΩ resistance increase post-splice)

Compliance

Meets IEC 61284, IEEE 1138, and AS 3607 standards

Compatible with ACSR, OPGW, GJ, LBGJ conductors (Ø6–20mm)

Transmission Lines: Splicing static wires/OPGW in 66kV–1000kV systems

Renewables: Ground wire repairs in offshore wind farms or coastal solar fields

Rail Electrification: Overhead catenary system (OCS) grounding continuity

Disaster Recovery: Rapid restoration of downed ground wires after storms

Why Choose Preformed Ground Splices?

Reliability: Eliminates compression failures and galvanic corrosion

Safety: No heavy tools or hot-work permits needed for installation

Economy: Reduces OPEX by 40% vs. traditional splices (studies confirm 60% lower lifetime maintenance)

Sustainability: Fully recyclable materials; zero VOC emissions during installation

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