The principal changes made within t

The principal changes made within the revision are as follows:a) the term “Category” (of system) is now used instead of “type” in thedescription of system objective/area of coverage (e.g. a full property protectionsystem was previously described as type P1, but is now described asCategory P1); this is to distinguish this term from the less precise use of theterm “type” to describe the principles of operation of the system(e.g. conventional, addressable, heat or smoke, etc.);b) the Categories (previously “types”) of system defined in this code of practicehave been extended in number to give recognition to systems that are designedto satisfy specific fire safety objectives or enhance life safety, but that cannot beclassified within the system types previously defined;c) the need for the level of protection to be based on a fire risk assessment by acompetent person is recognized;d) the use of automatic fire detection as part of a fire engineering solution isrecognized;e) the use of new technologies, such as multi-sensor detection, is addressed;f) new methods of fire detection, including carbon monoxide detection and videosmoke detection, are taken into account;g) the maximum distance of travel to a manual call point has been increased;h) greater flexibility is recommended in respect of minimum sound pressurelevels;