Amendments Booklet AMD 9 2025 (Booklets E R)·Page 18·6.3C Note 1-3
Hose laying distance measurement notes
Distance measurements for hose laying should be taken on suitable routes, with provisions for using two-thirds of travel distance when internal layout is unknown, and potential need for additional fire mains in protected stairways.
Note 1: Distance should be measured from the fire main outlet on a route suitable for laying a hose. Note 2: If the internal layout is not known, direct distances may be used for assessment. The direct distance is taken as two thirds of the travel hose laying distance. Note 3: In order to meet the 45 m hose criterion in (b), it might be necessary to provide additional fire mains in protected stairways. This does not imply that these stairways need to be designed as fire-fighting shafts.
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