Hello thank's for the answear, but if a draft curtain with 2 m of depth was between two sprinklers what's the distance between them ? and the distance between the sprinklers and the ceiling ? the draft curtain will be considered as a wall or beam or it is a special case ?
In accordance widh the NFPA 13 standard (paragraph 9.3.5.3.1), what's the distance between SPK when a draft curtain exists between them ? It is 1.8 or 3.6 m.