Section
19 Classification of ships not built under survey
19.1 General
19.1.1 When
classification is desired for a ship not built under the supervision
of LR's Surveyors, application should be made to the Committee in
writing.
19.1.2 Periodical
Surveys of such ships, when classed, are subsequently to be held as
in the case of ships built under survey.
19.1.3 Where
classification is desired for a ship which is classed by another recognized
Society, special consideration will be given to the scope of the survey.
19.2 Hull and equipment
19.2.1 Plans
showing the main scantlings and arrangements of the actual ship, together
with any proposed alterations, are to be submitted for approval. These
should comprise plans of the midship section, longitudinal section
and decks, and such other plans as may be requested. If plans cannot
be obtained or prepared by the Owner, facilities are to be given for
LR's Surveyor to obtain the necessary information from the ship.
19.2.2 Particulars
of the process of manufacture and the testing of the material of construction
are to be supplied.
19.2.3 In
all cases, the full requirements of Pt 1, Ch 3, 5 Special Survey - General - Hull requirements, Pt 1, Ch 3, 6 Special Survey - Bulk carriers - Hull requirements, Pt 1, Ch 3, 7 Special Survey - Oil tankers (including ore/oil ships and ore/bulk/oil ships) - Hull requirements, Pt 1, Ch 3, 8 Special Survey - Chemical Tankers - Hull requirements, Pt 1, Ch 3, 9 Ships for liquefied gases and Pt 1, Ch 3, 10 Dredgers, hopper dredgers, sand carriers, hopper barges and reclamation craft are
to be carried out as applicable. Ships of recent construction will
receive special consideration.
19.2.4 During
the survey, the Surveyors are to satisfy themselves regarding the
workmanship and verify the approved scantlings and arrangements. For
this purpose, and in order to ascertain the amount of any deterioration,
parts of the structure will require to be gauged as necessary. Full
particulars of the anchors, chain cables and equipment are to be submitted.
For ships to which Pt 6, Ch 4 Fire Protection, Detection and Extinction Requirements applies,
fire protection, detection and extinction are to be in accordance
with that Chapter. Loading instruments, where required, are to be
in accordance with the Rules, see
Pt 3, Ch 3, 4.8 Watertight tunnels and passageways as applicable.
19.3 Machinery
19.3.1 To
facilitate the survey, plans of the following items (plans of piping
are to be diagrammatic), together with the particulars of the materials
used in the construction of the boilers, air receivers and important
forgings, are to be furnished:
- General pumping arrangements, including air and sounding pipes
(Shipbuilder's plan).
- Pumping arrangements at the forward and after ends of oil tankers
and drainage of cofferdams and pump rooms.
- General arrangement of cargo piping in tanks and on deck of oil
tankers.
- Piping arrangements for cargo oil (F.P. 60°C or above, closed
cup test).
- Bilge, ballast and fuel oil pumping arrangements in the machinery
space, including the capacities of the pumps on bilge service.
- Arrangement and dimensions of main steam pipes.
- Arrangement of fuel oil pipes and fittings at settling and service
tanks.
- Arrangement of fuel oil piping in connection with oil burning
installations.
- Fuel oil and cargo oil overflow systems, where these are fitted.
- Arrangement of boiler feed systems.
- Fuel oil settling, service and other fuel oil tanks not forming
part of the ship's structure.
- Boilers, superheaters and economizers.
- Air receivers.
- Crank, thrust, intermediate and screw shafting.
- Clutch and reversing gear with methods of control.
- Reduction gearing.
- Propeller (including spare propeller if supplied).
- Electrical circuits.
- Arrangement of compressed air systems for main and axiliary services.
- Arrangement of lubricating oil systems.
- Arrangement of flammable liquids used for power transmission,
control and heating systems
- Arrangement of cooling water systems for main and axiliary services.
- General arrangement of cargo tank vents. The plan is to indicate
the type and position of the vent outlets from any superstructure,
erection, air intake, etc. Ventilation arrangements of cargo and/or
ballast pump rooms and other enclosed spaces which contain cargo handling
equipment.
19.3.2 Plans
additional to those detailed in Pt 1, Ch 3, 19.3 Machinery 19.3.1 are
not to be submitted unless the machinery is of a novel or special
character affecting classification.
19.3.3 Where
remote and/or automatic controls are fitted to propulsion machinery
and essential auxiliaries, a description of the scheme is to be submitted.
19.3.4 For
new ships and ships which have been in service less than two years,
calculations of the torsional vibration characteristics of the propelling
machinery are to be submitted for consideration, as required for ships
constructed under Special Survey. For older ships, the circumstances
will be specially considered in relation to their service record and
type of machinery installed. Where calculations are not submitted,
the Committee may require that the machinery certificate be endorsed
to this effect. When desired by the Owner, the calculations and investigation
of the torsional vibration characteristics of the machinery may be
carried out by LR upon special request.
19.3.5 The
main and auxiliary machinery, feed pipes, compressed air pipes and
boilers are to be examined as required at Complete Surveys. Working
pressures are to be determined from the actual scantlings in accordance
with the Rules.
19.3.6 The
screwshaft is to be drawn and examined.
19.3.8 The
bilge, ballast and fuel oil pumping arrangements are to be examined
and amended, as necessary, to comply with the Rules.
19.3.9 Oil
burning installations are to be examined as required at Complete Surveys
and found, or modified, to comply with the requirements of the Rules;
they are also to be tested under working conditions.
19.3.10 The
electrical equipment is to be examined as required at Complete Surveys.
19.3.12 The
whole of the machinery, including essential controls, is to be tried
under working conditions to the Surveyor's satisfaction.
19.3.13 First
entry reports are to be prepared by the Surveyors.
19.4 Refrigerated cargoes
19.4.1 When
classification is desired for an installation not constructed under
the supervision of LR's Surveyors, application is to be made to the
Committee in writing.
19.4.4 The
thickness and material of the insulation, the particulars of the frames,
beams, stiffeners and other steelwork within the insulation, the air
coolers and/or chamber grid piping, the compressors, evaporators and
condensers are to be verified so far as practicable.
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