Solar DC Cable Size Calculator
This tool provides quick calculation means for sizing solar cables. Standard operating conditions are assumed. Calculating the DC wire size is vital for budgeting any electrical project, as a bigger wire size implies more expensive cables. For that reason, we’ve created this tool.
Max. Permissible Ambient Temperature : +90°C (stationary and in motion )
Max. Permissible Operating Temperature of The Conductor :
+120°C, Interpretation according to IEC 60216 : permanent temperature.
120°C for 20,000 h ( = 2.3 years ), at max. 90°C permanent temperature ( = 30 years ).
Short – Circuit Temperature : +250°C referring to a period of 5 sec.
Damp – Heat Test : According to EN 60068 – 2 – 78. 1,000h at 90°C and 85% humidity. Min. Permissible Ambient Temperature : -40°C (stationary and in motion) Resistance to Cold :
Bending test at low temperature according to DIN EN 60811 – 1 – 4, Impact test similar to DIN EN 50305.
Minimum Bending Radius : Fixed Installation approx. 4 x cable Ø
Voltage Rating : AC 0.6 / 1.0 kV
Max. PV – System Voltage : DC up to 2.0 kV possible
Max. Permissible Operating Voltage in AC Systems : 0.7 / 1.2 kV Max. Permissible Operating Voltage in DC Systems : 0.9 / 1.8 kV Test Voltage : AC 6.5 kV / DC 15 kV (15 min.)
Tensile Load :15 N / mm² in operation. 50 N/mm² during installation
Shrinkage Test : According to EN 60811 – 1 – 3
Shore-Hardness : 85 shore A according to DIN EN 53505
Pressure Test at High Temperature : According to EN 60811 – 3 – 1
Dynamic Penetration Test : According to requirements for cables for PV systems, DKE / VDE 411.2.3
Conductor : Fine Wire Tinned Copper Conductor according to BS EN 60228:2005 cl. 5.
Insulation : UV resistant, cross linkable, halogen free, flame retardant compound for core insulation.
Core Identification : Red, black or natural
Sheath : UV resistant, cross linkable, halogen free, flame retardant compound for Sheath over insulation.
Cable Colour : Red, Black, Black with Red Strip
Please complete the part numbers for these cables by adding the suffix (in place of “xx”) for the insulation colour required as per the list: 02 – black, 03 – red, 13 – natural.
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