Electrical cable for the aerospace field

An insulated electrically conductive element for the aerospace field, comprising:

• an elongate electrically conductive element surrounded by at least three layers, said three layers being an electrically insulating layer surrounding the elongate electrically conductive element;
• a first semiconductor layer of a thickness e1 surrounding said electrically insulating layer;
• and
• a second semiconductor layer of a thickness e2 surrounding said electrically conductive element, at least one of said three layers comprising at least one fluoropolymer,
• wherein said electrically insulating layer has a thickness ei, the value of said thickness ei being determined according to the operating voltage U of the insulated electrically conductive element, the value of the electric field emax, and an inner diameter d1 of the electrically insulating layer,
• wherein the thickness ei of the insulating layer is determined according to a ratio of the operating voltage U to the diameter d1, such that the thickness ei simultaneously satisfies the following relationship:
• ei
• ≥
• d
• 1
• 2
• [
• exp
• ⁡
• (
• U
• E
• max
• ×
• d
• 1
• 2
• )
• -
• 1
• ]
• and
• the thickness ei≥e1+e2.