Other factors in determining size of conductors are:

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Conductor size is chosen to ensure it can carry the expected current without overheating and withstand the mechanical demands of the line. The most comprehensive factors are the amount of load to be transmitted, the length of the line, the span lengths between supports, and the type of structures used. The current the line must carry directly sets how large a conductor is needed to avoid overheating. A longer line increases resistance and voltage drop, which also influences the required size to maintain proper operation. Longer spans require more tension and have more sag to manage, so the conductor must be sized to handle that mechanical load. The type of structures affects how much sag and wind/ice loading the line must tolerate, which further shapes the required cross-section. Weather can alter ampacity through temperature effects and installation practices can influence how the line is supported, but these are secondary considerations within the overall sizing framework. The color of insulation does not affect conductor sizing.