N 18
CAP. 281]
Merchant Shipping (Minimum Passenger Space) Regulations.
[1969 Ed.
[Subsidiary]
(b) that the ventilation of each unberthed passenger compartment shall be independent of that of all other compartments; and
(c) that no inlet ventilator is either screened from the wind in any direction or situated directly over a doorway, stairway or exhaust opening.
(2) Any ventilation system required to be fitted pursuant to this regulation shall be fitted notwithstanding the provision of any side scuttle, door, hatchway, skylight or other aperture in any unberthed passenger accommodation not provided solely for ventilation purposes.
(3) No ventilator shall be trunked through any watertight sub-division bulkhead; and every ventilator shall be fitted with suitable protection against the risk of fire.
(4) Any ventilator shaft constructed solely for the purposes of ventilation may be fitted as an air outlet when serving a compartment ventilated either naturally or mechanically if its coaming extends sufficiently high above the weather as to permit the ventilator to remain open in ordinary weather:
Provided that where a non-cowl type of ventilator is fitted in a natural ventilation system as an exhaust ventilator its area shall be at least double that required for a cowl ventilator in the same position.
(5) Any unberthed passenger space situated in the uppermost between deck, bridge or other detached superstructure compartment or deckhouse shall be ventilated by-
(a) a trunked mechanical ventilation or other air change system fitted in accordance with regulation 23; or
(b) a natural ventilation system so arranged as to provide an aggregate area of not less than 10 square inches for each person of the maximum number for which the space may be measured, that is 5 square inches each of inlet and of exhaust ventilation:
Provided that where a compartment is abreast the machinery or boiler casings, or immediately above the machinery spaces, the area of each ventilator serving the compartment shall be increased by not less than 50 per centum.
(6) Every ventilator cowl shall-
(a) be placed in an unobstructed position where it can remain open in ordinary weather and can be trimmed in any direction; and
(b) have an area at least 50 per centum greater than that of its coaming.
N 18
CAP. 281]
Merchant Shipping (Minimum Passenger Space) Regulations.
[1969 Ed.
[Subsidiary]
(b) that the ventilation of each unberthed passenger compart- ment shall be independent of that of all other compart- ments; and
(c) that no inlet ventilator is either screened from the wind in any direction or situated directly over a doorway, stairway or exhaust opening.
(2) Any ventilation system required to be fitted pursuant to this regulation shall be fitted notwithstanding the provision of any side scuttle, door, hatchway, skylight or other aperture in any unberthed passenger accommodation not provided solely for ventilation purposes.
(3) No ventilator shall be trunked through any watertight sub-division bulkhead; and every ventilator shall be fitted with suitable protection against the risk of fire.
(4) Any ventilator shaft constructed solely for the purposes of ventilation may be fitted as an air outlet when serving a com- partment ventilated either naturally or mechanically if its coaming extends sufficiently high above the weather as to permit the ven- tilator to remain open in ordinary weather:
Provided that where a non-cowl type of ventilator is fitted in a natural ventilation system as an exhaust ventilator its area shall be at least double that required for a cowl ventilator in the same position.
(5) Any unberthed passenger space situated in the uppermost between deck, bridge or other detached superstructure compartment or deckhouse shall be ventilated by-
(a) a trunked mechanical ventilation or other air change
system fitted in accordance with regulation 23; or
(b) a natural ventilation system so arranged as to provide an aggregate area of not less than 10 square inches for each person of the maximum number for which the space may be measured, that is 5 square inches each of inlet and of exhaust ventilation:
Provided that where a compartment is abreast the machinery or boiler casings, or immediately above the machinery spaces, the area of each ventilator serving the compartment shall be increased by not less than 50 per
centum.
(6) Every ventilator cowl shall-
(a) be placed in an unobstructed position where it can remain open in ordinary weather and can be trimmed in any direction; and
(b) have an area at least 50 per centum greater than that of
its coaming.
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