The basic characteristics of the cable’s physical construction, which includes:

• Conductor material – normally copper or aluminium
• Conductor shape – circular or shaped
• Conductor type – stranded or solid
• Conductor surface coating – plain (no coating), tinned, silver or nickel
• Insulation type –  PVC, XLPE, EPR
• Number of cores – single core or multicore (2C, 3C, 4C or 5C)

Installation Conditions

How the cable will be installed, which includes:

• Above ground or underground
• Installation / arrangement – for underground cables, is it directly buried or buried in conduit? for above ground cables, is it installed on cable on trays/ ladders/ basket/ trunking, against a wall, in air, etc.
• Ambient or soil temperature of the installation site
• Cable bunching – the number of cables that are bunched together
• Cable spacing – whether cables are installed touching or spaced
• Soil thermal resistivity (for underground cables)
• Depth of laying (for underground cables)
• For single core three-phase cables, are the cables installed in trefoil or laid flat?
• Total number of grouped circuits
• Cables in parallel

We doing calculation with standard parameters however is not problem do special.