Cable Splicing & Termination

Grid Mule delivers expert medium-voltage (MV) cable splicing and termination services for renewable energy projects, industrial facilities, and utility infrastructure. Our certified technicians are skilled in applying industry-leading methods such as 3M™ Cold Shrink QS-III, heat shrink kits, and other OEM-approved solutions to ensure precise, durable, and reliable joints and terminations.

We specialize in creating safe, high-performance connections at all critical points—including substation transformers, junction boxes, inverters, overhead risers, and underground feeders. Every splice and termination is performed to maintain system integrity, minimize downtime, and meet the highest performance standards under real-world operating conditions.

Construction

• Underground Cable Splicing & Terminations – Precision connections for feeders, inverters, junction boxes, and grid tie-ins.
• Overhead Line Splicing & Terminations – Reliable connections and transitions for transmission/distribution feeders, risers, and transformers.
• Substation & Transformer Connections – Accurate splicing and terminations into substation equipment and collector systems.
• New Infrastructure Builds – Complete splicing and termination services supporting substations, collector systems, and grid interconnections.
• Project Integration – Seamless coordination with civil, electrical, and commissioning teams for efficient energization.

Upgrades & Retrofits

• Cable Replacements & Extensions – Splicing and terminating new or rerouted sections to expand or modify capacity.
• Equipment Change-Out Connections – Updated terminations and splicing for replaced switchgear, breakers, or transformers.
• System Reconfiguration & Technology Upgrades – Application of OEM-approved splicing and termination methods to meet evolving project needs.
• Grid Modernization Support – Enhancing aging infrastructure with reliable MV splicing and termination solutions.

Maintenance & Repairs

• Emergency Cable & Termination Repairs – Rapid mobilization for damaged or faulted underground/overhead circuits and connections.
• Preventive Inspections & Testing – Routine evaluation of joints, terminations, insulation integrity, and electric field control.
• Fault Location & Diagnostics – Identifying and resolving splice or termination failures with specialized testing equipment.
• Reliability Assurance – Keeping critical assets online with minimal downtime through proactive maintenance and corrective repairs.

Warranty

• Contractor Warranty Support – Performing warranty-related splicing and termination work on behalf of EPCs, IPPs, and facility operators.
• Corrective Work – Addressing workmanship or material-related issues with reliable replacements and repairs.
• Standards & Compliance – Ensuring all splicing and termination work meets OEM, voltage class (5 kV–46 kV), and environmental requirements.
• Owner Confidence – Delivering lasting, electrically insulated, and moisture-protected connections that safeguard performance and project reputation.

Procedures

• Confirm the absence of voltage on all cables using approved testing methods.
• Prepare cables for splicing with precision tools, abrasives, and appropriate solvents.
• Perform splicing on shielded and non-shielded cables using aluminum or copper connectors.
• Install hand-taped, cold shrink, heat shrink, and molded elbow terminations in accordance with Class 1, 2, or 3 standards.
• Operate specified test equipment as required by project specifications.