OUR SPECIALIZATIONS

Specialized Contracting Services

Proven execution of civil and mechanical scopes for transmission grid developers in Cameroon and Guinea.

Tower Foundation Works

SERVICE SCOPE

Tower Foundation Works

High-voltage transmission line tower foundation & civil works

Critical foundation engineering for transmission line corridors (225kV/400kV). We execute excavations, reinforcement steel binding, stub setting, and concrete casting to rigid drawings and geotechnical specs.

Technical Deliverables:
Geotechnical classification (dry, wet, submerged, soft/hard rock)
Precision stub setting and template alignment
Reinforced Cement Concrete (RCC) casting with strict slump testing
Backfilling and soil compaction with mechanical rammers
Contracting Model & Mobilization

Contracting available on a labor-rate basis or fully-managed scope. We provide experienced civil supervisors and bar-benders familiar with L&T, TATA, and Kalpataru drawings.

Tower Erection

SERVICE SCOPE

Tower Erection

Lattice steel structure assembly and raising

Fast, safe assembly and erection of lattice towers. Using standard GIN pole rigging and experienced climbing crew, we execute lifting and bolting operations in challenging forest, swamp, and mountainous corridors.

Technical Deliverables:
Section-by-section and member-by-member GIN pole assembly
Strict torque limits and bolt tight testing (punching/painting)
Counterpoise earthing and pipe earthing installation
Installation of accessories: anti-climbing devices, step bolts, number plates
Contracting Model & Mobilization

Towers erected in alignment with safety standards. Erection rate scopes include material sorting from site stores to tower locations using specialized logistical transport.

Conductor Stringing

SERVICE SCOPE

Conductor Stringing

Tension conductor stringing & sagging operations

High-tension stringing operations for twin-bundle and quad-bundle conductors (e.g., AAAC Aster). We manage puller-tensioner setups, sag board checks, and final damping accessory installations.

Technical Deliverables:
Tension stringing of AAAC (All Aluminum Alloy Conductor) lines
Sagging and clipping operations to tension profiles
Spacer dampers, vibration dampers, and jumper installation
Corridors clearing and sag-ground clearance verification
Contracting Model & Mobilization

Contracts structured with or without Tools & Plant (T&P) options. SLE can mobilize full tension-stringing machinery (pullers, tensioners, drum stands, running blocks) or execute as a labor-only sub-contract.

OPGW Installation

SERVICE SCOPE

OPGW Installation

Optical Ground Wire installation, splicing & commissioning

Fibre optic grid connection and telecommunications cabling. We install overhead ground wire (OPGW) containing optical fibers, performing tension stringing and splice box installation for modern grid automation.

Technical Deliverables:
Live-line and offline OPGW tension stringing
Optical fiber splicing inside joint boxes
OTDR testing (Optical Time-Domain Reflectometer) for attenuation
OPGW grounding and vibration damper installation
Contracting Model & Mobilization

Delivered using specialized splicing techs and fiber testing tools to ensure clean data corridors for regional power grids.

Civil Works

SERVICE SCOPE

Civil Works

General Grid Civil Works & Substation support

In addition to transmission towers, we execute associated civil scopes including substation foundation excavation, control room building masonry, security chain-link fencing, cable trenches, and drainage works.

Technical Deliverables:
Substation foundation excavation and civil pours
Control room masonry and masonry wall construction
Cable trenching and pre-cast concrete duct covers
Substation security chain-link boundary fencing
Contracting Model & Mobilization

Delivered with specialized mason crews and excavation machinery on fully-managed or day-work hiring rates.

General Grid Civil Works

In addition to transmission towers, we execute associated civil scopes including substation foundation excavation, control room building masonry, security chain-link fencing, cable trenches, and drainage works.