Places where there is a risk of colliding with obstacles, of falling down or of falling objects must be permanently marked with warning colours or with safety signs.They shall be marked with alternating yellow and black or red and white stripes in the areas of the undertaking that the employees have access to during their work. The stripes shall form an angle of approximately 45 degrees and be of more or less equal size.The dimensions of the marking must be commensurate with the scale of the obstacle or the dangerous location.Example:
