Disclosed is a protective helmet designed to be worn by an electrician, including: an outer shell (2); a face shield (3) integral with the helmet (1), the face shield is irremovably secured to the outer shell and is mobile relative to the outer shell, and allows a stowed position in which it is at least partially inserted into an inner space of the helmet (1) which is defined by the outer shell, and a working position in which it projects from the inner space; and a flexible flap (4) integral with the helmet, which is irremovably secured to the face shield, and mobile relative to the face shield, and which further allows a retracted configuration in which it at least partially covers a surface (16) of the face shield and a working configuration in which it is deployed and extends the face shield.