Artikel 78

A. The following spaces shall be regarded as propelling-machinery spaces:
(1) Spaces for the main boilers;
(2) Spaces for the main machinery;
(3) Spaces for auxiliary machinery necessary for the working of main boilers or main machinery;
(4) Shaft-tunnels or trunks and escape trunks;
(5) Engineers' store-rooms and workshops up to a maximum of three-quarters of one % of gross tonnage, if situated within the boundaries of the machinery space below the upper deck;
(6) Spaces for the following machinery, appliances or apparatus: (a) Settling tanks, reasonable in extent,1) For ships making long voyages, the maximum cubic capacity of the settling tanks must not exceed a capacity corresponding to a tow-day supply of fuel oil; otherwise they will be considered exclusively as fuel spaces.in oil-burning ships if situated within the boundaries of the machinery space, in the casings above, or directly adjacent to such space or casings;
(b) Dynamos, switchboards and control-panels, with the exception of those indicated under B (4) (f) of the present article;
(c) Silencers (including silencers in funnels);
(d) Hot-wells, if situated within the boundaries of the machinery space below the upper deck;
(e) Ash-ejectors;
(f) Apparatus for forced-draft to boilers;
(g) Oil-refiners and oil-coolers for fuel oil and lubricating oil (including rectifying and purifying tanks);
(h) Feed-water heating apparatus and other similar plant necessary for the working of the main machinery;
(i) Evaporators solely for boiler feed-water;
(j) Pumps for lubricating oil;
(k) Ventilating plant situated in and necessary for the ventilation of the machinery space;
(l) Storage batteries, used solely in connection with the propelling-machinery;
(m) Steam and electric compressors and air-reservoirs used in connection with the propelling-machinery;
(n) Fuel oil pumps, used solely for fuel oil purposes if situated within the boundaries of the machinery space, in the casings above, or directly adjacent to such space or casings.
(a) Settling tanks, reasonable in extent,1) For ships making long voyages, the maximum cubic capacity of the settling tanks must not exceed a capacity corresponding to a tow-day supply of fuel oil; otherwise they will be considered exclusively as fuel spaces.in oil-burning ships if situated within the boundaries of the machinery space, in the casings above, or directly adjacent to such space or casings;
(b) Dynamos, switchboards and control-panels, with the exception of those indicated under B (4) (f) of the present article;
(c) Silencers (including silencers in funnels);
(d) Hot-wells, if situated within the boundaries of the machinery space below the upper deck;
(e) Ash-ejectors;
(f) Apparatus for forced-draft to boilers;
(g) Oil-refiners and oil-coolers for fuel oil and lubricating oil (including rectifying and purifying tanks);
(h) Feed-water heating apparatus and other similar plant necessary for the working of the main machinery;
(i) Evaporators solely for boiler feed-water;
(j) Pumps for lubricating oil;
(k) Ventilating plant situated in and necessary for the ventilation of the machinery space;
(l) Storage batteries, used solely in connection with the propelling-machinery;
(m) Steam and electric compressors and air-reservoirs used in connection with the propelling-machinery;
(n) Fuel oil pumps, used solely for fuel oil purposes if situated within the boundaries of the machinery space, in the casings above, or directly adjacent to such space or casings.
B. The following spaces shall not be regarded as propellingmachinery spaces:
(1) Fuel spaces.
(2) Feed-water spaces.
(3) Storage tanks for lubricating oil.
(4) Spaces occupied by the following machinery, appliances or apparatus: (a) Auxiliary condenser plant not used in connection with propelling-machinery;
(b) Fire-extinguishing plant;
(c) Refrigerating machinery;
(d) Machinery for ventilation and for heating of crew's and passengers' quarters;
(e) Sanitary and other pumps not used in connection with the propelling-machinery;
(f) Dynamos, switchboards and control-panels, exclusively used for lighting or navigating purposes, cargo work, etc., quite independent of the ship's propelling-machinery;
(g) Donkey-boilers other than those referred to in Article 79.
(a) Auxiliary condenser plant not used in connection with propelling-machinery;
(b) Fire-extinguishing plant;
(c) Refrigerating machinery;
(d) Machinery for ventilation and for heating of crew's and passengers' quarters;
(e) Sanitary and other pumps not used in connection with the propelling-machinery;
(f) Dynamos, switchboards and control-panels, exclusively used for lighting or navigating purposes, cargo work, etc., quite independent of the ship's propelling-machinery;
(g) Donkey-boilers other than those referred to in Article 79.