Section 27 of that Act shall apply to any grant-maintained school; and subsections (2)(c) and (3)(c) of that section shall apply in relation to persons employed, and the employment or further employment of persons, by the governing bodies of grant-maintained schools in such work as is mentioned in subsection (2)(c) of that section as they apply respectively in relation to persons employed, and the employment or further employment of persons, in such work by local education authorities.