Section
1 Introduction
1.1 Application
1.1.1 It is a requirement
of most National Authorities that lifting appliances are approved,
examined, tested and certified by a competent person or organisation
before being taken into use and thereafter are periodically surveyed
to maintain the validity of the certification.
1.1.2 Lloyd’s
Register’s (LR) certification is internationally accepted and,
where requested, LR will undertake the necessary certification of
lifting appliances and subsequent surveys to ensure compliance with
the statutory Regulations.
1.1.3 In certain
cases, a National Authority requires its own certification to be used.
Where authorised, LR is also able to arrange the issue of these certificates
which may be in addition to the LR certification if so desired by
the Owner.
1.1.4 Ships or offshore
units fitted with appliances built in accordance with this Code in
respect of structural and machinery requirements may be eligible for
Special Features class notations. These notations will be retained
so long as the appliances are found upon examination at the prescribed
surveys to be maintained in accordance with LR’s requirements, see
Ch 1, 1.3 Classification.
1.1.5 This Code
is applicable to marine lifting appliances, including:
-
derrick and derrick
crane systems;
-
launch and recovery
appliances for survival craft and rescue boats;
-
cranes;
-
launch and recovery
systems for diving operations;
-
lifts and ramps;
where these are installed on ships or offshore units for the
following purposes:
- on ships, for handling cargo, equipment and personnel;
- on barges and pontoons, e.g. a floating crane;
- on fixed or mobile offshore installations, for transferring equipment;
- on ships or fixed or mobile offshore installations, for handling
manned submersibles and diving systems;
- on ships, for transferring goods or personnel from one deck level
to another;
- on ships and offshore installations for evacuation in an abandon
ship/installation situation.
1.1.6 The Code is
also applicable to shiplift and transfer system installations on which
vessels are raised and lowered by means of winches or jacks when docked
on an articulated or rigid platform structure.
1.1.7 Lifting appliances
and applications not defined above will be considered on the general
basis of the Code.
1.1.8 These requirements
are based on the understanding that:
-
the appliance and/or
equipment will at all times be properly loaded in accordance with
the designer’s instructions and the loading conditions approved
by LR.
-
where the appliance
and/or equipment is to be certified but not classed, the design criteria
specified conclude that Periodical Survey procedures, at least equivalent
to LR’s, will be adhered to by the Owner or the equipment operator.
-
the appliance and/or
equipment will at all times be properly operated by trained and authorised
personnel.
-
the appliance and/or
equipment will be maintained by qualified and authorised personnel.
-
compliance with these
requirements does not absolve the designers and/or manufacturers of
their contractual responsibilities to the client for compliance with
the specification and the overall design and in-service performance
of the appliance and/or equipment.
1.1.9 The interpretation
of the Code is the sole responsibility, and at the sole discretion,
of LR. Any uncertainty in the meaning of the requirements of the Code
is to be referred to LR for clarification.
1.1.10 It is the
responsibility of the Owners, Operators, designers, manufacturers
and any repairers that they fully acquaint themselves with the scope
of these requirements and associated obligations laid down herein,
and have satisfied themselves that these requirements are sufficient
for their purposes.
1.1.11 The Code
embodies both the general requirements for compliance with major statutory
Regulations for such applications, and the detailed requirements of
LR either as an authorised body issuing statutory certificates or
as an independent authority issuing its own form of certification.
1.1.12 It is emphasised
that the Code deals primarily with the structural aspects of the lifting
appliance. Driving mechanisms and similar mechanical parts are the
responsibility of the designers of the gear, but tests to demonstrate
‘fail safe’ operation will be required during commissioning
trials, see
Ch 9 Machinery.
1.2 Certification
1.2.1 The certification adopted by LR is the recognised form recommended by the
International Labour Office (l.L.O.) and is also in accordance with current relevant
directives of the European Community (EC).
1.2.2 It is the responsibility of the Owner or Operator to ensure that they
comply with statutory requirements. Particular attention is drawn to the specific
requirements of some authorities who do not accept surveys carried out by ship’s
officers but require all surveys and certification to be carried out by nominated
organisations such as LR.
1.2.3 Attention is also drawn to the more stringent requirements of certain
authorities with respect to cranes offshore and lifting arrangements for diving
operations.
1.2.4 It is LR’s interpretation of the intention of current National Regulations
that every lifting appliance, including oil hose derricks, stores cranes and engine room
cranes, is to be certified and compliance with this is strongly recommended to the
Owner.
1.2.5 The minimum requirements for the issue by LR of certification in accordance
with the Code are:
-
Plan approval of the structural arrangements.
-
Verification of materials.
-
Verification of manufacturer’s certificates for loose gear, ropes,
etc.
-
Survey of the appliance.
-
Testing of the appliance when installed on board.
Note : For the requirements outlined in (b) and (c), check tests may be required at the
discretion of the Surveyor.
1.2.7 If LR certification of loose gear is requested or when LR is certifying or classing the
lifting appliance directly associated to the loose gear item (e.g. grabs, hooks blocks,
see
Ch 8, 3.5 Hook blocks), then the minimum requirements for
the issue by LR of certification for loose gear in accordance with the Code are:
- Plan Approval of the structural arrangements or LR Type Approval;
- verification of materials;
- survey of the loose gear item; and
- testing of the loose gear item (reference is made to Ch 12 Testing, Marking and Surveys).
Deviations from the above procedure will be subject to special consideration and
agreement by LR.
Plan Approval may not be required for designs which are fully in compliance with a
recognised National or International Standard and where the standard is compatible with
the proposed environment and design of the lifting appliance. In all other cases, the
loose gear items are to be designed as per the applicable requirements of Ch 8 Fittings, Loose Gear and Ropes.
Other loose gear items, such as shackles, swivels, chains, rings and similar items are
not normally required to be certified by LR and manufacturer’s certificates will be
accepted provided that the items have the required Safe Working Load (SWL) and are made
of acceptable material.
1.2.8 Any request for LR’s services is to make it quite clear if compliance with
any specific Regulations, Standard or Code is required. This is necessary for initial,
periodical and any specific type of survey requested.
1.2.9 National and International Regulations require lifting appliances to receive
Periodical Surveys and testing to maintain the validity of the certification.
1.2.10 Provided that the original certification is valid, up to date and was
issued by a competent authority, LR will, upon request, carry out the necessary survey
requirements, issue appropriate certificates and endorse the register of lifting
appliances carried by the ship.
1.3 Classification
1.3.1 Ships or offshore units classed with LR and fitted with lifting appliances
built in accordance with the requirement of this Code will be eligible to be assigned
Special Features class notations in the Register Book as listed in Table 1.1.1 Special features class notations
associated with lifting appliances.
Table 1.1.1 Special features class notations
associated with lifting appliances
Lifting appliance
|
Special features class
notation
|
Remarks
|
Cargo gear, derricks, derrick cranes
or cranes on ships
|
CG
|
Optional notation
Indicates that the vessel’s cargo gear is included in
class
|
Units, offshore installations and offshore
support vessels
|
OC
|
Optional notation
Indicates that the installation’s unit’s or vessel’s main
deck cranes are included in class
|
Pipe laying system
|
PLS
|
Optional notation Indicates
that the pipe laying system is included in class
|
Personnel transfer system
(Walk-to-Work)
|
W2W
|
Optional notation Indicates
that the personnel transfer system is included in class
|
Lifts and ramps on vessels
|
CL
PL
CR
|
Optional notations
Indicate that the vessel's cargo lifts (CL), passenger lifts (PL) or cargo
ramps (CR) are included in class
|
Lifting appliances fitted to military naval
vessels
|
LAP
|
Optional notation
Indicates that lifting appliances have been designed and built in accordance
with this Code (or equivalent standard), but where it is not mandated by the
LA notation
|
Lifting appliances forming an
essential feature of the vessel, e.g. cranes on crane barges or pontoons,
some lifting arrangements for diving on diving support vessels, etc.
|
LA
|
Mandatory notation
Indicates that the lifting appliance is included in
class
|
Lifting appliances forming an essential feature
of the vessel where the appliance(s) has been classed by a recognised
classification society other than LR and later transferred into class with
LR.
|
|
Mandatory notation. Indicates that the
lifting appliance is classed and that initial requirements for the appliance
were that of another recognised classification society.
|
1.3.2 Where the lifting appliance is considered to form an essential feature of a
classed vessel, the Special Feature class notation LA or will, in general, be mandatory.
1.3.3 In other cases, classification is optional and may be assigned at the
request of the Owner on compliance with the appropriate requirements, see also
Ch 5 Shiplift and Transfer Systems.
1.3.4 Proposals to class lifting appliances on unclassed ships or offshore units
will be specially considered.
1.3.5 The minimum requirements for classification of a lifting appliance are:
-
Plan approval of the structural, electrical, control and mechanical
arrangements in accordance with LR’s requirements.
-
Verification of materials.
-
Verification of manufacturer’s certificates and testing of loose
gear, ropes and fittings.
-
Survey of the lifting appliance.
-
Testing of the lifting appliance on installation.
-
Subsequent Periodical Surveys of the lifting appliance as required by
Ch 12 Testing, Marking and Surveys.
1.3.6 Classification also fully meets the relevant requirements for statutory
certification of the lifting appliance.
1.3.7 It should be noted that certain moveable support structures for loading and
discharge arrangements, such as the rotating support boom for a dredger discharge pipe,
are considered an essential feature of the ship and are included in the classification
of the ship. A separate notation is not assigned.
1.3.8 From the time the notation is assigned, the subject appliance(s) will be
tested and surveyed in accordance with the requirements of Ch 12 Testing, Marking and Surveys.
1.4 Equivalents
1.4.1 Recognised
International or National Standards for the design of installations
will be accepted as equivalent to the Code requirements, provided
LR is satisfied in each case that the standard adequately takes into
account all the forces resulting from the intended mode of operation.
The relevant Standard is to be specified in the submission.
1.4.2 Recognised
International or National Standards for components or fittings will
generally be accepted as equivalent to the requirements of this Code.
1.4.3 Alternative
arrangements or fittings which are considered to be equivalent to
the requirements of this Code will be accepted.
1.5 Calculations
1.5.1 Designers
may be required to submit calculations for consideration when scantling
plans are submitted for approval.
1.5.2 Where finite
element/computer analysis forms the basis of the designer’s
determination of scantlings, details of the analysis package and software
are to be specified, together with the basic design criteria, to assist
in LR’s approval procedures.
1.5.3 LR’s
direct calculation procedures may include the use of suitable and
appropriate spreadsheet and ‘calculation routine’ techniques
and tools.
1.5.4 LR’s
direct calculation procedures within the Lloyd’s Register’s
Plan Appraisal Systems for Ships (LR.PASS) facilities may be used
to assist in the design process. The available procedures and facilities
are presented in the report summarising LR.PASS.
1.5.5 Where approval
is required for appliances of novel design or with features not covered
by this Code, LR may require additional calculations to be carried
out.
1.6 Materials and fabrication
1.6.1 Materials intended for the construction, or repair, of classed lifting
appliances are to be in accordance with LR's Rules for the Manufacture, Testing and Certification of Materials, July 2022. All
material shall be sourced from an LR approved manufacturer, see
Ch 1, 2.1 Approval and survey requirements – General of the Rules for the
Manufacture, Testing and Certification of Materials. The materials shall be
ordered to be supplied with an ‘LR certificate’ or ‘Manufacturer’s certificate validated
by LR’, as defined in Ch 1, 3 Certification of materials of
the Rules for the Manufacture, Testing and Certification of Materials.
1.6.4 If the material specification is to be defined in accordance with a recognised National
or International Standard that is equivalent to those specified in the Rules for the Manufacture, Testing and Certification of Materials, July 2022, then the following aspects are to be considered as a
minimum in order to achieve equivalency with the Rules for the Manufacture, Testing and Certification of Materials, July 2022:
- The proposed material needs to be sourced from an LR approved manufacturer.
- The materials shall be ordered to be supplied with an ‘LR
certificate’ or ‘Manufacturer’s certificate validated by LR’, as defined in Ch 1, 3 Certification of materials of the Rules for the Manufacture, Testing and
Certification of Materials.
- The proposed material needs to be equivalent to at least one product within the
manufacturer’s scope of LR approval. The equivalency needs to be confirmed by LR
on a case-by-case basis.
- The mechanical properties of the proposed material are to be similar to the
equivalent type or grade in the Rules for the Manufacture, Testing and Certification of Materials, July 2022. The specified mechanical properties (e.g.
yield strength depending on material thickness) of the proposed material are to
meet the design requirements of the lifting appliance.
- The chemical composition, heat treatment condition and any other specific
condition, grade or property (e.g. through thickness property) of the proposed
material are to be similar to the equivalent material type or grade in the Rules for the Manufacture, Testing and Certification of Materials, July 2022.
- The Charpy V-notch impact test requirements of the proposed material are to be in
accordance with the relevant design requirements of this Code.
- The surface quality, internal soundness and dimensional tolerances are to be
equivalent to the applicable requirements in Rules for the Manufacture, Testing and Certification of Materials, July 2022.
- The Non-Destructive Examination of the proposed material is to be
equivalent to Ch 1, 5 Non-destructive examination of the Rules for the Manufacture, Testing
and Certification of Materials.
1.6.5 If the material specification is to be approved by LR for a specific application then
the following aspects are to be considered as a minimum:
- The proposed material needs to be sourced from an LR approved manufacturer.
- The materials shall be ordered to be supplied with an ‘LR
certificate’ or ‘Manufacturer’s certificate validated by LR’, as defined in Ch 1, 3 Certification of materials of the Rules for the Manufacture, Testing and
Certification of Materials.
- The LR approved manufacturer shall have demonstrated capability to produce the
proposed material with equivalency in thickness range, grain refinement,
chemistry, rolling, heat treatment and supply condition. This equivalency needs to
be confirmed by LR on a case-by-case basis.
- The specified mechanical properties (e.g. yield strength depending on material
thickness) of the proposed material are to meet the design requirements of the
lifting appliance.
- The Charpy V-notch impact test requirements of the proposed material are to be in
accordance with the relevant design requirements of this Code.
- Surface quality, internal soundness and dimensional tolerances shall be suitable
for the intended application.
- The aspects of Non-Destructive Examination of the proposed material are to be
suitable for the intended application.
1.6.6 Materials intended for the construction of certified lifting appliances
are, as a minimum, to be in accordance with a recognised National or International
Standard that includes materials which are equivalent to those specified in the Rules for the Manufacture, Testing and Certification of Materials, July 2022. In this case, the approval and survey requirements may not
comply with the requirements of Ch 1 General Requirements, and Section 1 of subsequent Chapters, of the Rules for the
Manufacture, Testing and Certification of Materials and therefore the proposed
materials may, at the discretion of the Surveyor, be subject to additional testing under
LR survey prior to acceptance for any project.
1.6.7 Materials that are not addressed by Ch 1, 1.6 Materials and fabrication 1.6.1, Ch 1, 1.6 Materials and fabrication 1.6.2, Ch 1, 1.6 Materials and fabrication 1.6.3, Ch 1, 1.6 Materials and fabrication 1.6.4, Ch 1, 1.6 Materials and fabrication 1.6.5 or Ch 1, 1.6 Materials and fabrication 1.6.6 will be subject to special
consideration by LR for both classed and certified applications.
1.6.8 An overview of the routes to achieve material acceptance for lifting
appliances which are to be classed or certified by LR is provided in Table 1.1.2 Material requirements for classed and certified lifting appliances.
Table 1.1.2 Material requirements for classed and certified lifting appliances
Material
requirements
|
Applicability
|
see
Ch 1, 1.6 Materials and fabrication 1.6.1, Ch 1, 1.6 Materials and fabrication 1.6.2, Ch 1, 1.6 Materials and fabrication 1.6.3, Ch 1, 1.6 Materials and fabrication 1.6.4 and
Ch 1, 1.6 Materials and fabrication 1.6.5
|
Classed and certified
lifting appliances
|
see
Ch 1, 1.6 Materials and fabrication 1.6.6
|
Certified lifting
appliances
|
see
Ch 1, 1.6 Materials and fabrication 1.6.7
|
Classed and certified
lifting appliances, subject to special consideration by LR in each
case
|
|