Power Cable Engineering and Ampacity Solutions

Power cable systems are critical components of modern electrical networks, and their performance is influenced by installation conditions, soil properties, loading profiles, and system interactions.

Accurate ampacity calculation, thermal behaviour evaluation, and installation optimization are essential to ensure safe operation, prevent insulation damage, and maximize asset utilization.

Techlabs provides comprehensive cable engineering solutions using advanced tools for detailed thermal, electrical, and routing analysis across transmission, distribution, and industrial systems.

Tools & Platforms

CYMCAP – Advanced Cable Thermal Analysis

CYMCAP is a globally recognized software for detailed thermal analysis and ampacity calculations of power cable systems, developed based on IEC standards. It enables accurate modelling of cable behaviour under a wide range of installation and operating conditions.

Core Thermal Capabilities

Steady-State Ampacity: Determines maximum continuous current carrying capacity under defined conditions
Transient Thermal Analysis: Evaluates temperature variation over time for dynamic loading conditions
Short Circuit Thermal Rating: Calculates thermal withstand limits during fault conditions
Cyclic Loading Analysis: Assesses impact of daily/seasonal load cycles on cable temperature

Installation Modelling

Direct buried cable systems
Ductbank and conduit installations
Air and tray configurations
Submarine and underwater cables

Thermal & Electrical Modelling

Conductor, sheath, dielectric, and armour losses
Mutual heating between adjacent circuits
Soil thermal resistivity and ambient conditions
Backfill materials and thermal stabilization

Advanced Studies

Emergency loading and overload analysis
Cable derating calculations
Cross-bonding and sheath losses evaluation
Impact of installation geometry on ampacity

CABLE3D – Cable Routing & Layout Engineering

CABLE3D enables detailed 3D modelling of cable routing systems, allowing engineers to visualize layouts, optimize routing paths, and detect installation conflicts.

3D visualization of cable systems
Routing optimization and path selection
Clash detection with civil and structural elements
Integration with substation and plant layouts

SKM Cable Ampacity – System-Integrated Cable Analysis

SKM Cable Ampacity provides detailed cable thermal analysis within an integrated electrical system modelling environment. It enables engineers to evaluate cable performance in conjunction with system-level conditions such as load flow, fault levels, and protection coordination.

Key Capabilities

Ampacity Calculations: Determines current carrying capacity based on installation, ambient, and grouping conditions
Installation Modelling: Supports tray, conduit, buried, air, and complex configurations
Thermal Performance: Evaluates cable heating under steady-state and varying loads
System Integration: Links cable performance with load flow and short circuit studies
Derating Analysis: Accounts for grouping, ambient temperature, and installation constraints
Protection Coordination Support: Ensures cable ratings align with system protection settings

This makes SKM particularly valuable for projects where cable sizing, protection, and system performance must be evaluated together.

Engineering Capabilities

Accurate ampacity determination across installation types
Thermal performance evaluation under steady-state and transient conditions
Cable routing and layout optimization
Short circuit thermal withstand assessment
Integrated system-based cable design validation

Applications

Underground and submarine transmission cables
Distribution cable networks
Substation cable systems
Industrial and commercial installations
Renewable energy projects

What We Deliver

Detailed ampacity and thermal analysis reports
Installation and routing optimization recommendations
Short circuit thermal rating evaluations
Cable system design inputs
Integrated system performance validation