AC cable requirements

  • Conductor type: copper wire

  • The conductors must be made of solid wire, stranded wire or fine stranded wire. When using fine stranded wire, bootlace ferrules must be used.

  • Conductor cross-section: 1.5 mm² to 10 mm²

  • The cross-section of the grounding conductor must not be smaller than the cross-section of the other conductors.

  • External diameter: 10 mm to 25 mm

  • The cable must be dimensioned in accordance with the local and national directives for the dimensioning of cables. The requirements for the minimum conductor cross-section derive from these directives. Examples of factors influencing cable dimensioning are: nominal AC current, the connected AC backup loads, type of cable, routing method, cable bundling, ambient temperature and maximum desired line losses (for calculation of line losses, see the design software "Sunny Design" from software version 2.0 at www.SMA-Solar.com).

  • Insulation stripping length: 18 mm

    Cable Requirements
    Requirements for the PV cables