Section
15 Classification of ships not built under LR survey
15.1 General
15.1.1 When classification is desired for a ship not built under the supervision of
LR Surveyors, application should be made in writing. The scope of classification will
include hull and machinery aspects, as defined in Vol 1, Pt 1, Ch 3, 15.2 Hull and equipment and Vol 1, Pt 1, Ch 3, 15.3 Machinery, in addition to any additional
notations requested, but may be limited to hull-only aspects on request.
15.1.2 Periodical Surveys of ships not built under survey, when classed, are
subsequently to be held as in the case of ships built under survey
15.1.3 Where
classification is desired for a ship which has not been designed,
constructed and maintained to appropriate standards recognised by
the Naval Authority, special consideration will be given to the requirements
of this Section.
15.1.4 Where
classification is desired for a ship which is classed by another recognised
Society, special consideration will be given to the requirements of
this Section.
15.2 Hull and equipment
15.2.1 Plans
showing the main scantlings, corrosion margins and arrangements of
the actual ship together with any proposed alterations are to be submitted.
As a minimum the plans are to comprise a midship section, longitudinal
section and decks. LR may request further plans. Documents demonstrating
compliance with appropriate standards recognised by the Naval Authority
are to be submitted. In the absence of such documentation, an appraisal
may be required to the satisfaction of LR. For vessels which have
generated sufficient evidence of satisfactory in-service experience
LR may consider this in lieu of compliance documentation or an appraisal.
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.
15.2.2 Particulars
of the process of manufacture and the testing of the material of construction
are to be supplied. The requirements for composite ships will be specially
considered.
15.2.4 During
the survey, the Surveyors are to satisfy themselves regarding the
workmanship and verify the approved scantlings and arrangements. For
this purpose, and also in order to ascertain the amount of any deterioration
of a steel ship, parts of the structure will require to be gauged
as necessary. Full particulars of the anchors, chain cables and equipment
are to be submitted.
15.3 Machinery
15.3.1 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 submitted.
Documents demonstrating compliance with appropriate Standards recognised
by the Naval Authority are to be submitted. In the absence of such
documentation, an appraisal may be required to the satisfaction of
LR. For vessels which have generated sufficient evidence of satisfactory
in-service experience LR may consider this in lieu of compliance documentation
or an appraisal:
- General piping system arrangements, including air and sounding pipes (Builder’s
plan).
- Bilge, dewatering, ballast and fuel oil piping arrangements 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 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 economisers.
- 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, as listed in Vol 2, Pt 9, Ch 1, 1.4 Documentation required for design review 1.4.4, Vol 2, Pt 9, Ch 1, 1.4 Documentation required for design review 1.4.6 and Vol 2, Pt 9, Ch 1, 1.4 Documentation required for design review 1.4.7.
- Arrangement of compressed air systems for main and auxiliary services.
- Arrangement of lubricating oil, hydraulic oil, thermal oil and other systems
containing flammable liquids.
- Arrangements of cooling water systems for main and auxiliary services.
- Steering gear system and piping arrangements together with manufacturer, model and
rating information.
- Aircraft/helicopter and vehicle fuel storage and distribution systems.
- Chilled water systems.
- High pressure sea-water systems.
- Heating and ventilation systems.
- Made and fresh water systems.
- Hydraulic power actuating systems.
- Propulsion engine details including manufacturer, model and rating
information.
- Electrical generator engine details including manufacturer, model and rating
information.
For UMS notation the following plans are to be
submitted for appraisal:
- Fire alarm system.
- Instrumentation list.
- Plans for systematic maintenance and function testing.
- Test schedule.
Where an Ice Class notation is required the following plans
are to be submitted for appraisal:
- Main propulsion line shafting.
- Reduction gears.
- Propeller.
- Details of any clutch system in the propulsion line.
Replenishment at sea arrangements where a RAS notation
is requested.
15.3.3 Where
remote and/or automatic controls are fitted to propulsion machinery
and essential auxiliaries, a description of the scheme is to be submitted.
15.3.4 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,
LR 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.
15.3.5 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.
15.3.6 The
screwshaft is to be drawn and examined.
15.3.8 The
bilge, dewatering, ballast and fuel oil pumping arrangements are to
be examined and amended, as necessary, to comply with the Rules.
15.3.9 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.
15.3.10 The
electrical equipment is to be examined as required at Complete Surveys.
15.3.11 The
whole of the machinery, including essential controls, is to be tested
under working conditions to the Surveyor’s satisfaction.
15.3.12 Relevant
reports are to be prepared by the Surveyors.
|