thermT1Sub property

Implementation

String get thermT1Sub => isNL
    ? 'ρi = thermische weerstand isolatie [K·m/W]  ·  t = isolatiedikte [m]  ·  dc = geleidersdiameter [m]'
    : 'ρi = thermal resistance insulation [K·m/W]  ·  t = insulation thickness [m]  ·  dc = conductor diameter [m]';