F63[33.—Nothing in this Part or Part II shall render unlawful measures maintained or adopted with a view to ensuring full equality in practice between employees, being measures—

(a) to prevent or compensate for disadvantages linked to any of the discriminatory grounds (other than the gender ground),

(b) to protect the health or safety at work of persons with a disability, or

(c) to create or maintain facilities for safeguarding or promoting the integration of such persons into the working environment.]