Hull Construction Regulations

237 Where an exhaust duct from a galley range passes through an accommodation space or space containing combustible materials, the duct shall be insulated to an ‘A’ Class fire rating and shall be fitted with

• (a) a grease trap that is readily removable for cleaning;

• (b) a fire damper located in the lower end of the duct;

• (c) a device, operable from within the galley, for shutting off the exhaust fan; and

• (d) a fixed means for extinguishing a fire within the duct.