(1)
A protected floor space used to satisfy the requirements of Clause 3.4.3.2.(6)(b) shall
(a)
be separated from the interconnected floor space by a fire separation having a fire-resistance rating not less than that required for the floor assembly of the storey in which it is located,
(b)
have all openings in the vertical fire separation between a protected floor space and the adjacent interconnected floor space protected by vestibules conforming to Sentence 3.2.8.4.(1), and
(c)
be designed so that it is not necessary to enter the interconnected floor space to reach an exit.