|
[接上页] (a) Spacing of watertight bulkheads: The positions of the main transverse bulkheads are to be noted from the approved subdivision plans and recorded in Form B.H.1. These positions are to be checked at the ship together with those of the approved steps and recesses in the watertight bulkheads, and the arrangement of longitudinal watertight and non-watertight bulkheads. (b) Form of ship: In order that the surveyor may satisfy himself that the form of the ship as built substantially agrees with the particulars from which the flooding curves have been developed, the following or other approved procedure is to be adopted- The surveyor is to measure from the plans and enter in Form B.H.1 a series of depths and breadths to the moulded lines in the plane of each main transverse bulkhead. In ordinary cases it will be sufficient to measure the breadth at points obtained by dividing the depth into six equal parts. If, however, the breadths could be more conveniently taken at each tenth of the ship's length or in any other positions, definite proposals to that effect are to be submitted for consideration. When the construction of the ship is sufficiently advanced the corresponding breadths are to be measured at the ship and entered in Form B.H.1.(c) Appropriation of Spaces: The appropriation of an spaces upon which the calculations of average permeabilities and criterion numeral are based is to be entered in Form B.H.1 and B.H.1A, and when the ship is completed the surveyor is to examine each space and satisfy himself that it will be used for the purpose shown on the approved plans. If it appears that a space will be used for a purpose such as would involve a higher average permeability of the portion of the ship in which the space is situated or an increase in the criterion numeral, the surveyor is to call the builder's attention to the matter and report full particulars to the Principal Surveyor of Ships.(d) Inspection of Subdivision Loadline Markings: Before issuing his declaration the surveyor is to inspect the subdivision loadline marks placed on the ship's sides, and satisfy himself that they are in accordance with paragraph 16 of these Instructions. The surveyor is held responsible for the duty of ensuring that the positions of the marks to which the ship may load when carrying passengers correspond with the approved subdivision draughts.(6) Entries in Form B.H.1: All particulars for which provision is made in Form B.H.1 are to be entered therein and on completion of the ship this form, with the diagram B.H.1A attached, is to be forwarded to the Principal Surveyor of Ships for examination and record. Cap 369C reg 2 Strength of ships Strength and inspection of hulls of new ships The structural plans and particulars specified in paragraph 74(1)(a) and (b) and any others which may be necessary for the purpose are to be submitted so that the Surveyor of Ships may determine whether the strength of all parts of the structure of the ship will be sufficient. If after approval of these submissions any structural modifications are made which may affect the strength of the ship or any of its parts, they are to be reported in detail for the Principal Surveyor of Ships' approval and instructions, and before issuing his declaration the surveyor is to satisfy himself that in an respects the ship has been constructed in accordance with the structural plans as finally approved by the Surveyor of Ships. Cap 369C reg 3 Ships to be surveyed before being painted or cemented The surveyor is not to undertake the first survey of a ship for a safety certificate or a passenger certificate after the hull is complete, painted and cemented until he has reported full particulars of the case to the Principal Surveyor of Ships and received instructions as to the action to be taken. Surveys made while a ship is being built are for the purpose of enabling the surveyor to form an opinion of the material, construction and workmanship, and when a surveyor declines to grant a declaration in consequence of not having inspected the hull before it was painted and cemented, the owners or builders of the ship are to be referred to the Principal Surveyor of Ships who will decide what steps are to be taken. Cap 369C reg 4 Dry docking During the survey for a safety certificate or a passenger certificate for the first time the bottom of a new ship need not be examined in dry dock after launching, if it has been examined by the surveyor before the ship is launched, unless he has special reasons for considering it necessary. In each case the procedure followed is to be recorded. Cap 369C reg 5 Degree of subdivision Watertight subdivision Every passenger ship shall be as efficiently subdivided as is possible having regard to its intended service. The instructions laid down in paragraphs 6 to 14 give effect to this principle by providing for the degree of subdivision to vary with the length of the ship and with the service in such manner that the highest degree of subdivision is required in ships of the greatest length primarily engaged in the carriage of passengers. |