1 This
regulation applies to oil tankers of 5,000 tonnes deadweight and above
constructed on or after 1 January 2007.
2 The pump-room shall
be provided with a double bottom such that at any cross-section the
depth of each double bottom tank or space shall be such that the distance h between the bottom of the pump-room and the ship's base line
measured at right angles to the ship's base line is not less than
specified below:
|
h
|
= |
2
m, whichever is the lesser. |
The minimum value of h = 1 m.
3 In case
of pump rooms whose bottom plate is located above the base line by
at least the minimum height required in paragraph 2 above (e.g. gondola
stern designs), there will be no need for a double bottom construction
in way of the pump-room.
4 Ballast
pumps shall be provided with suitable arrangements to ensure efficient
suction from double bottom tanks.
5 Notwithstanding
the provisions of paragraphs 2 and 3 above, where the flooding of
the pump-room would not render the ballast or cargo pumping system
inoperative, a double bottom need not be fitted.