Wind Farms Service Ships
August 2014
Guidance Note
NI 589 DT R01 E
Marine & Offshore Division
92571 Neuilly sur Seine Cedex – France
Tel: + 33 (0)1 55 24 70 00 – Fax: + 33 (0)1 55 24 70 25
Marine website: http://www.veristar.com
Email: [email protected]
 2014 Bureau Veritas - All rights reserved
MARINE & OFFSHORE DIVISION
GENERAL CONDITIONS
ARTICLE 1
1.1. - BUREAU VERITAS is a Society the purpose of whose Marine & Offshore Division (the "Society") is
the classification (" Classification ") of any ship or vessel or offshore unit or structure of any type or part of
it or system therein collectively hereinafter referred to as a "Unit" whether linked to shore, river bed or sea
bed or not, whether operated or located at sea or in inland waters or partly on land, including submarines,
hovercrafts, drilling rigs, offshore installations of any type and of any purpose, their related and ancillary
equipment, subsea or not, such as well head and pipelines, mooring legs and mooring points or otherwise
as decided by the Society.
The Society:
• "prepares and publishes Rules for classification, Guidance Notes and other documents (" Rules ");
• "issues Certificates, Attestations and Reports following its interventions (" Certificates ");
• "publishes Registers.
1.2. - The Society also participates in the application of National and International Regulations or Standards, in particular by delegation from different Governments. Those activities are hereafter collectively referred to as " Certification ".
1.3. - The Society can also provide services related to Classification and Certification such as ship and
company safety management certification; ship and port security certification, training activities; all activities and duties incidental thereto such as documentation on any supporting means, software, instrumentation, measurements, tests and trials on board.
1.4. - The interventions mentioned in 1.1., 1.2. and 1.3. are referred to as " Services ". The party and/or its
representative requesting the services is hereinafter referred to as the " Client ". The Services are prepared and carried out on the assumption that the Clients are aware of the International Maritime
and/or Offshore Industry (the "Industry") practices.
1.5. - The Society is neither and may not be considered as an Underwriter, Broker in ship's sale or chartering, Expert in Unit's valuation, Consulting Engineer, Controller, Naval Architect, Manufacturer, Shipbuilder, Repair yard, Charterer or Shipowner who are not relieved of any of their expressed or implied
obligations by the interventions of the Society.
ARTICLE 2
2.1. - Classification is the appraisement given by the Society for its Client, at a certain date, following surveys by its Surveyors along the lines specified in Articles 3 and 4 hereafter on the level of compliance of
a Unit to its Rules or part of them. This appraisement is represented by a class entered on the Certificates
and periodically transcribed in the Society's Register.
2.2. - Certification is carried out by the Society along the same lines as set out in Articles 3 and 4 hereafter
and with reference to the applicable National and International Regulations or Standards.
2.3. - It is incumbent upon the Client to maintain the condition of the Unit after surveys, to present
the Unit for surveys and to inform the Society without delay of circumstances which may affect the
given appraisement or cause to modify its scope.
2.4. - The Client is to give to the Society all access and information necessary for the safe and efficient
performance of the requested Services. The Client is the sole responsible for the conditions of presentation of the Unit for tests, trials and surveys and the conditions under which tests and trials are carried out.
ARTICLE 3
3.1. - The Rules, procedures and instructions of the Society take into account at the date of their
preparation the state of currently available and proven technical knowledge of the Industry. They
are a collection of minimum requirements but not a standard or a code of construction neither a
guide for maintenance, a safety handbook or a guide of professional practices, all of which are
assumed to be known in detail and carefully followed at all times by the Client.
Committees consisting of personalities from the Industry contribute to the development of those documents.
3.2. - The Society only is qualified to apply its Rules and to interpret them. Any reference to them
has no effect unless it involves the Society's intervention.
3.3. - The Services of the Society are carried out by professional Surveyors according to the applicable
Rules and to the Code of Ethics of the Society. Surveyors have authority to decide locally on matters related to classification and certification of the Units, unless the Rules provide otherwise.
3.4. - The operations of the Society in providing its Services are exclusively conducted by way of random inspections and do not in any circumstances involve monitoring or exhaustive verification.
ARTICLE 4
4.1. - The Society, acting by reference to its Rules:
• "reviews the construction arrangements of the Units as shown on the documents presented by the Client;
• "conducts surveys at the place of their construction;
• "classes Units and enters their class in its Register;
• "surveys periodically the Units in service to note that the requirements for the maintenance of class are
met.
The Client is to inform the Society without delay of circumstances which may cause the date or the
extent of the surveys to be changed.
ARTICLE 5
5.1. - The Society acts as a provider of services. This cannot be construed as an obligation bearing
on the Society to obtain a result or as a warranty.
5.2. - The certificates issued by the Society pursuant to 5.1. here above are a statement on the level
of compliance of the Unit to its Rules or to the documents of reference for the Services provided for.
In particular, the Society does not engage in any work relating to the design, building, production
or repair checks, neither in the operation of the Units or in their trade, neither in any advisory services, and cannot be held liable on those accounts. Its certificates cannot be construed as an implied or express warranty of safety, fitness for the purpose, seaworthiness of the Unit or of its value
for sale, insurance or chartering.
5.3. - The Society does not declare the acceptance or commissioning of a Unit, nor of its construction in conformity with its design, that being the exclusive responsibility of its owner or builder.
5.4. - The Services of the Society cannot create any obligation bearing on the Society or constitute any
warranty of proper operation, beyond any representation set forth in the Rules, of any Unit, equipment or
machinery, computer software of any sort or other comparable concepts that has been subject to any survey by the Society.
ARTICLE 6
6.1. - The Society accepts no responsibility for the use of information related to its Services which was not
provided for the purpose by the Society or with its assistance.
6.2. - If the Services of the Society or their omission cause to the Client a damage which is proved
to be the direct and reasonably foreseeable consequence of an error or omission of the Society,
its liability towards the Client is limited to ten times the amount of fee paid for the Service having
caused the damage, provided however that this limit shall be subject to a minimum of eight thousand (8,000) Euro, and to a maximum which is the greater of eight hundred thousand (800,000)
Euro and one and a half times the above mentioned fee. These limits apply regardless of fault including breach of contract, breach of warranty, tort, strict liability, breach of statute, etc.
The Society bears no liability for indirect or consequential loss whether arising naturally or not as
a consequence of the Services or their omission such as loss of revenue, loss of profit, loss of production, loss relative to other contracts and indemnities for termination of other agreements.
6.3. - All claims are to be presented to the Society in writing within three months of the date when the Services were supplied or (if later) the date when the events which are relied on of were first known to the Client,
and any claim which is not so presented shall be deemed waived and absolutely barred. Time is to be interrupted thereafter with the same periodicity.
ARTICLE 7
7.1. - Requests for Services are to be in writing.
7.2. - Either the Client or the Society can terminate as of right the requested Services after giving
the other party thirty days' written notice, for convenience, and without prejudice to the provisions
in Article 8 hereunder.
7.3. - The class granted to the concerned Units and the previously issued certificates remain valid until the
date of effect of the notice issued according to 7.2. here above subject to compliance with 2.3. here above
and Article 8 hereunder.
7.4. - The contract for classification and/or certification of a Unit cannot be transferred neither assigned.
ARTICLE 8
8.1. - The Services of the Society, whether completed or not, involve, for the part carried out, the payment
of fee upon receipt of the invoice and the reimbursement of the expenses incurred.
8.2. - Overdue amounts are increased as of right by interest in accordance with the applicable legislation.
8.3. - The class of a Unit may be suspended in the event of non-payment of fee after a first unfruitful
notification to pay.
ARTICLE 9
9.1. - The documents and data provided to or prepared by the Society for its Services, and the information
available to the Society, are treated as confidential. However:
• "Clients have access to the data they have provided to the Society and, during the period of classification of the Unit for them, to the classification file consisting of survey reports and certificates which
have been prepared at any time by the Society for the classification of the Unit ;
• "copy of the documents made available for the classification of the Unit and of available survey reports
can be handed over to another Classification Society, where appropriate, in case of the Unit's transfer
of class;
• "the data relative to the evolution of the Register, to the class suspension and to the survey status of
the Units, as well as general technical information related to hull and equipment damages, may be
passed on to IACS (International Association of Classification Societies) according to the association
working rules;
• "the certificates, documents and information relative to the Units classed with the Society may be
reviewed during certificating bodies audits and are disclosed upon order of the concerned governmental or inter-governmental authorities or of a Court having jurisdiction.
The documents and data are subject to a file management plan.
ARTICLE 10
10.1. - Any delay or shortcoming in the performance of its Services by the Society arising from an event
not reasonably foreseeable by or beyond the control of the Society shall be deemed not to be a breach of
contract.
ARTICLE 11
11.1. - In case of diverging opinions during surveys between the Client and the Society's surveyor, the Society may designate another of its surveyors at the request of the Client.
11.2. - Disagreements of a technical nature between the Client and the Society can be submitted by the
Society to the advice of its Marine Advisory Committee.
ARTICLE 12
12.1. - Disputes over the Services carried out by delegation of Governments are assessed within the
framework of the applicable agreements with the States, international Conventions and national rules.
12.2. - Disputes arising out of the payment of the Society's invoices by the Client are submitted to the Court
of Nanterre, France, or to another Court as deemed fit by the Society.
12.3. - Other disputes over the present General Conditions or over the Services of the Society are
exclusively submitted to arbitration, by three arbitrators, in London according to the Arbitration
Act 1996 or any statutory modification or re-enactment thereof. The contract between the Society
and the Client shall be governed by English law.
ARTICLE 13
13.1. - These General Conditions constitute the sole contractual obligations binding together the
Society and the Client, to the exclusion of all other representation, statements, terms, conditions
whether express or implied. They may be varied in writing by mutual agreement. They are not varied by any purchase order or other document of the Client serving similar purpose.
13.2. - The invalidity of one or more stipulations of the present General Conditions does not affect the validity of the remaining provisions.
13.3. - The definitions herein take precedence over any definitions serving the same purpose which may
appear in other documents issued by the Society.
BV Mod. Ad. ME 545 L - 7 January 2013
GUIDANCE NOTE NI 589
NI 589
Wind Farms Service Ships
SECTION 1
GENERAL
SECTION 2
GENERAL ARRANGEMENT
SECTION 3
STABILITY
SECTION 4
STRUCTURE
SECTION 5
HULL OUTFITTING
SECTION 6
MACHINERY
SECTION 7
ELECTRICITY AND AUTOMATION
SECTION 8
FIRE AND SAFETY
SECTION 9
SPECIFIC REQUIREMENTS
August 2014
Section 1
General
1
General
1.1
1.2
1.3
1.4
1.5
1.6
2
9
Wind farms service ship
Cargo ship
Non-Cargo ship
Passenger
Special Personnel (SP)
Industrial personnel (IP)
Place of refuge
Adapted sea state
10
General
General Arrangement
1
General
1.1
2
3
12
Small and medium light ship (S0, M0)
Large light ship (L0)
Small and medium ship other than light ship (S1, S2 or M1, M2)
Large ship other than light ship (L1, L2)
12
Small and medium light ship (S0, M0)
Small and medium ship other than light ship (S1, S2, M1, M2)
Large ship other than light ship (L1, L2)
Accommodation
5.1
5.2
12
Number of watertight bulkheads
Light ship (S0, M0, L0)
Small and medium ship other than light ship (S1, S2 or M1, M2)
Large ship other than light ship (L1, L2)
Access arrangement
4.1
4.2
4.3
5
Application
Compartment arrangement
3.1
3.2
3.3
3.4
4
12
Subdivision arrangement
2.1
2.2
2.3
2.4
2
Service notations
Navigation notations
Additional class notations
Applicable rules
4.1
Section 2
8
Definitions
3.1
3.2
3.3
3.4
3.5
3.6
3.7
3.8
4
Application
Principle
Statutory matters
Main features
Personnel
Limitations
Notations
2.1
2.2
2.3
3
7
13
Light ship (S0, M0, L0)
Small and medium ship other than light ship (S1, S2, M1, M2)
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August 2014
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Crew / IP protection
6.1
6.2
6.3
Section 3
General
1.1
1.2
2
3
Application
Document to be submitted
14
Light and bi-mode ship (S0, S1, M0, M1 L0, L1)
Conventional small and medium ship (S2, M2)
Conventional large ship (L2)
Damage stability
3.1
3.2
3.3
14
Light and bi-mode ship (S0, S1, M0, M1, L0, L1)
Small and medium conventional ship (S2, M2)
Large conventional ship (L2)
Structure
1
General
1.1
2
3
16
Application
Design principle and hull structure
2.1
2.2
2.3
16
Light ship (S0, M0, L0)
Non-cargo ship of length L<90m and cargo ship of length L< 65m
Other ships
Other structures
3.1
3.2
3.3
16
Small and medium ship other than light ship (S1, S2, M1, M2)
Non-cargo ship of length L<90m and cargo ship of length L<65m
Non-cargo ship of length L>90m and cargo ship of length L>65m
Hull Outfitting
1
General
1.1
2
3
17
Application
Rudder
2.1
2.2
2.3
2.4
17
Small and medium light ship (S0, M0)
Large light ship (L0)
Large bi-mode ship (L1)
Other ship
Equipment
3.1
3.2
3.3
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14
Intact stability
2.1
2.2
2.3
Section 5
Light ship (S0, M0, L0)
Small and medium ship other than light ship (S1, S2, M1, M2)
Large ship other than light ship (L1, L2)
Stability
1
Section 4
13
17
Small and medium light ship (S0, M0)
Large light ship (L0)
Other ships
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4
Hull appendages
4.1
4.2
4.3
5
General
Small and medium light ship (S0, M0)
Large light ship (L0)
Other ships
General
1.1
2
19
Application
General requirements
2.1
2.2
2.3
19
Light ship (S0, M0, L0)
Small and medium ship other than light ship (S1, S2, M1, M2)
Large ship other than light ship (L1, L2)
Electricity and Automation
1
General
1.1
2
3
6
20
Light ship (S0, M0, L0)
Small and medium ship other than light ship (S1, S2, M1, M2)
Large ship other than light ship (L1, L2)
20
Light ship (S0, M0, L0)
Small and medium ship other than light ship (S1, S2, M1, M2)
Large ship other than light ship (L1, L2)
Location and installation
5.1
5.2
5.3
20
Light ship (S0, M0, L0)
Small and medium ship other than light ship (S1, S2, M1, M2)
Large ship other than light ship (L1, L2)
Automation
6.1
6.2
6.3
20
Light ship (S0, M0, L0)
Small and medium ship other than light ship (S1, S2, M1, M2)
Large ship other than light ship (L1, L2)
Equipment
4.1
4.2
4.3
5
Application
System design
3.1
3.2
3.3
4
20
General design requirements
2.1
2.2
2.3
4
18
Machinery
1
Section 7
Small and medium light ship (S0, M0)
Large light ship (L0)
Other ships
Stabilisation means
5.1
5.2
5.3
5.4
Section 6
17
21
Light ship (S0, M0, L0)
Small and medium ship other than light ship (S1, S2, M1, M2)
Large ship other than light ship (L1, L2)
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Section 8
Fire and Safety
1
General
1.1
1.2
2
22
Light ship (S0, M0, L0)
Other ship (S1, M1, L1, S2, M2, L2)
Specific Requirements
1
General
1.1
2
3
Application
23
Noise level
Vibration level
Cargo
4.1
4.2
4.3
23
General
Fendering
Contact area
Platform
Access system
Noise and vibration
3.1
3.2
4
23
Transfer of personnel
2.1
2.2
2.3
2.4
2.5
August 2014
Application
Requirements
Life-saving appliances
2.1
2.2
Section 9
22
24
Lifting
Containers
Fuel oil bunkering
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6
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August 2014
NI 589, Sec 1
SECTION 1
1
1.1
GENERAL
General
1.4
1.4.1 The typical main features of wind farms service ships
may be:
Application
1.1.1 Ships complying with the requirements of this Guidance Note are eligible for the assignment of the service
notation Wind farms service ship, as defined in NR467
Rules for Steel Ships, Pt A, Ch 1, Sec 2.
1.1.2 The service notation Wind farms service ship is
intended to cover ships specifically designed to operate in
offshore wind farms for the typical following duties:
• Transfer of personnel from shore to offshore wind farms
or from mother ships or accommodation units at site to
offshore wind farms
• Lifting operations required for wind turbines' assistance
(transfer of materials on wind turbines' platforms).
• Deck area for cargo
• Seating and/or living accommodation for personnel
• Connection and access device to the turbine tower
• Lifting devices
• Motion damping system
• Dynamic Positioning system (DP)
• High service speed
• Adapted static bollard pull
• Propellers propulsion
• High manoeuvrability.
1.1.3 This Guidance Note does not cover ships intended
and/or designed for:
• installation and assembling of wind turbines and/or
main components (see Rule Note NR579 Wind Turbines
IMR Vessels)
• heavy maintenance and repair for which transportation
of wind turbine's main parts is needed (see NR579)
• jacking systems (see NI534 Classification of Self-Elevating Units).
1.5
1.2
1.6
Principle
1.2.1 This Guidance Note gives the indications on how to
use the following separate Rules for the classification of
wind farms service ships:
• NR467 Rules for the Classification of Steel Ships
• NR600 Hull Structure and Arrangement for the Classification of Cargo Ships less than 65 m and Non Cargo
Ships less than 90 m
• NR566 Hull Arrangement, Stability and Systems for
Ships less than 500 GT
• NR396 Rules for the Classification of High Speed Crafts
• NR490 Rules for the Classification of Crew Boats.
1.3
Statutory matters
1.3.1 Statutory matters, as for instance load lines convention or safety aspects, are to be taken into account according to:
• National Regulations of the flag flyed by the ship, and
• possible regulations of the state (territorial waters) on
which offshore wind farm is located.
The present Guidance Note does not cover such statutory
matters and each case will be considered separately.
August 2014
Main features
Personnel
1.5.1 This Guidance Note considers different types of person who can be carried onboard:
• the master and the crew
• industrial personnel, see definition in [3.6]
• special personnel, see definition in [3.5]
• passenger, see definition in [3.4].
Limitations
1.6.1 Capacity limitation
The capacity of the ship is limited to 60 persons (crew,
industrial personnel and passengers).
The number of passengers is not to be greater than 12, otherwise ship is to be considered as passenger ship.
When indicated, the number of industrial personnel
includes the number of passenger.
Note 1: Attention is to be paid that National Regulations can have
lower capacity limitation.
1.6.2 Operating condition limitations
Wind farm service ships with service notation S0 or L0 are
to be operated within operating conditions defined in Sec
4, [2.1].
It is the designer’s responsibility to specify the format and
the values of the limit operating conditions.
Note 1: For example: relationship between speed and significant
wave height which ascertains actual loads less than the one used
for structural design.
Wind farm service ships with service notation S1, S2, M1,
M2 or L1, L2 are not limited in operating conditions.
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NI 589, Sec 1
2
Notations
2.1
Service notations
2.1.1 Wind farms service ships are granted with the following service notations, with operational limits indicated in
Tab 1:
Service notation Wind farms service ship - Xi
where:
X
: Capacity parameter having one of the following
values S, M, or L:
S
: for small ship, i.e. with gross tonnage GT < 500 tonnes and L < 24m
M
: for medium ship, i.e. with gross tonnage GT < 500 tonnes and L ≥ 24m
L
i
: for large ship, i.e. with gross tonnage GT ≥ 500 tonnes
: Type ship parameter having one of the following
values 0, 1 or 2:
0
: for light ship, high speed craft (type
0), see [3.1.1]
1
: for bi-mode ship (type 1), see
[3.1.1]
2
Table 1 : Values of Xi
Gross tonnage, in GT
b) Considering the operation of the ship in planing mode,
one of the following navigation notations, as per
NR467, Pt A, Ch 1, Sec 2, [5.2.8], is to be assigned to
ships having Xi value equal to S1, M1 or L1:
• Sea area 4 Open sea: Hs ≥ 4 m
• Sea area 3 Restricted open-sea: 2,5 m ≤ Hs < 4 m
• Sea area 2 Moderate environment: 0,5 m < Hs < 2,5 m
• Sea area 1 Smooth area: Hs ≤ 0,5 m
Sea area are based on significant wave height Hs which
are not to exceed for more than 10 percent of the year
the given values.
≥ 500
< 500
Length, in m
L < 24
L ≥ 24
-
Type 0
Light ship, High speed craft
S0
M0
L0
Type 1
Bi-mode ship
S1
M1
L1
Type 2
Conventional ship
S2
M2
L2
Note 1: Significant wave height limit Hs used for sea area is different of the limit sea state in which the ship may operate, see Sec 4,
[2.1].
2.2.3 Conventional ship (X2)
One of the following navigation notations, as per NR467,
Pt A, Ch 1, Sec 2, [5.2], is to be assigned to ships having Xi
value equal to S2,M2, L2:
• Unrestricted navigation
• Summer zone
• Tropical zone
• Coastal area
• Sheltered area
2.3
Navigation notations
2.2.1 Light ship (X0)
One of the following navigation notations, as per NR467,
Pt A, Ch 1, Sec 2, [5.2.8], is to be assigned to ships having
Xi value equal to S0, M0 or L0:
• Sea area 4 Open sea: Hs ≥ 4 m
Additional class notations
2.3.1 The additional class notations stated in Tab 2 may be
granted upon request to ships having the service notation
Wind farms service ship.
In addition, additional class notations as given by NR467
may be granted.
2.3.2 Lifting appliances (ALP / ALM)
NR526 (Rules for the Certification of Lifting Appliances
onboard Ships and Offshore Units) is to be used for certification of cranes installed on board wind farms service ships
and possible additional class notations ALP / ALM.
• Sea area 3 Restricted open-sea: 2,5 m ≤ Hs < 4 m
• Sea area 2 Moderate environment: 0,5 m < Hs < 2,5 m
• Sea area 1 Smooth area: Hs ≤ 0,5 m
Sea area are based on significant wave height Hs which are
not to exceed for more than 10 percent of the year the given
values.
Note 1: Significant wave height limit Hs used for sea area is different of the limit sea state in which the ship may operate, see Sec 4,
[2.1].
8
a) Considering the operation of the ship in displacement
mode, one of the following navigation notations, as per
NR467, Pt A, Ch 1, Sec 2, [5.2], is to be assigned to
ships having Xi value equal to S1, M1 or L1:
• Unrestricted navigation
• Summer zone
• Tropical zone
• Coastal area
• Sheltered area
: for conventional ship (type 2), see
[3.1.1].
The exhaustive list of Xi is S0, S1, S2, M0, M1, M2 and L0,
L1, L2 as defined in Tab 1.
2.2
2.2.2 Bi-mode ships (X1)
For ships which can operate in displacement mode and in
planing mode, two navigation notations are to be assigned:
one for each mode of navigation. These notations are independent:
2.3.3 Dynamic positioning (DYNAPOS)
The additional class notation DYNAPOS covers the classification of the station keeping system.
The requirements for the additional class notation
DYNAPOS are defined in NR467, Pt E, Ch 10, Sec 6.
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August 2014
NI 589, Sec 1
Table 2 : Additional class notations
Additional class notations
Reference for definition
Remarks
ALP
ALM
NR467, Pt A, Ch 1, Sec 2, [6.12]
Lifting appliances
AVM-DPS
NR467, Pt A, Ch 1, Sec 2, [6.3.3]
Duplicated propulsion system
AVM-IPS
NR467, Pt A, Ch 1, Sec 2, [6.3.4]
Independent propulsion system
CLEANSHIP
NR467, Pt A, Ch 1, Sec 2, [6.8]
Pollution prevention
COMF-NOISE
NR467, Pt A, Ch 1, Sec 2, [6.7]
Comfort on board relating to noise level
COMF-VIB
NR467, Pt A, Ch 1, Sec 2, [6.7]
Comfort on board relating to vibration level
DYNAPOS
NR467, Pt A, Ch 1, Sec 2, [6.14.6]
Dynamic positioning
SDS
NR467, Pt A, Ch 1, Sec 2, [6.14.11]
Subdivision and damaged stability
2.3.4
Duplicated propulsion system (AVM-DPS /
AVM-IPS)
3
The additional class notation AVM-DPS covers the classification of ships arranged with redundant propulsion and
steering installation.
The requirements for the additional class notation AVMDPS are defined in NR 467, Pt E, Ch 2, Sec 2.
The additional class notation AVM-IPS covers the classification of ships arranged with independent propulsion and
steering installations.
3.1
V ≥ 7,16 Δ1/6
with:
Δ
: moulded full load displacement, in tonnes
V
: maximum service speed, in knots
Ship subdivision and damage stability (SDS)
The additional class notation SDS covers the classification
of ships for which a damage buoyancy, subdivision, and stability file has been examined.
When SDS additional class notation is granted, damage stability is to be checked according to Rules indicated in Tab 3
and Tab 4.
2.3.6
Wind farms service ship
3.1.1 Wind farms service ship means a ship designed to
carry personnel from shore, mother ship or accommodations platform to offshore wind turbine, and to carry little
cargo.
Three types of wind farms service ships are identified:
• Type 0: light ship, high speed craft, able to sail in planing mode, in adapted sea state at high speed, i.e.:
The requirements for the additional class notation AVM-IPS
are defined in NR467, Pt E, Ch 2, Sec 3.
2.3.5
Definitions
Note 1: Type 0 corresponds to notation X0.
• Type 1: bi-mode ship, i.e. high speed ship able to sail:
• in planing mode in adapted sea state to reach its
maximum speed, resulting in slamming phenomenon on bottom, and
• in displacement mode without any restricted
weather conditions.
Note 2: Type 1 corresponds to notation X1.
Comfort on board ships (COMF)
Additional class notations COMF cover the classification of
ships satisfying levels of noise and/or vibration defined in
NR467, Pt E, Ch 6, Sec 1 to Sec 3 as applicable.
• Type 2: conventional ship, i.e. sailing in displacement
mode at conventional relatively slow speed.
Note 3: Type 2 corresponds to the notation X2.
The Society is to take into consideration realistic criteria
upon the final evaluation of the ship and based on Owner's
requirements.
3.1.2 Small wind farms service ship
Small Wind farms service ship means a ship having a gross
tonnage less than 500 tonnes and a rule length L less than
24 meters.
The parameters that are taken into consideration for the
evaluation of the comfort, such as the level of noise, and the
level of vibration, are to be indicated in the relevant annex
to the Certificate of Classification.
Note 1: Small wind farms service ship corresponds to notation Si.
2.3.7
Pollution prevention (CLEANSHIP)
The additional class notation CLEANSHIP covers the classification of ships fitted with equipment and arrangements
enabling them to control and limit the emission of polluting
substances in the sea and in the air.
The requirements for the additional class notation
CLEANSHIP are defined in NR467, Pt E, Ch 9.
August 2014
3.1.3 Medium wind farm service ship
Medium Wind farms service ship means a ship having a
gross tonnage less than 500 tonnes and a rule length L not
less than 24 meters.
Note 1: Medium wind farms service ship corresponds to notation
Mi.
3.1.4 Large wind farms service ship
Large Wind farms service ship means a ship having a gross
tonnage equal or greater than 500 tonnes.
Note 1: Large wind farms service ship corresponds to notation Li.
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NI 589, Sec 1
3.2
Cargo ship
3.6
3.2.1 Cargo ship means a ship liable to carry cargoes and
having a deadweight greater than 30% of the total displacement. As a general rule, these ships are fitted with cargo
holds, tanks and ballast tanks and the value of the block
coefficient is greater than 0,75.
3.3
Non-Cargo ship
3.4
3.6.1 Industrial personnel means persons who are not passenger nor members of the crew or children of under one
year of age, and who are carried onboard for the purpose of
the industrial activities. IP have received special training
course before being allowed to be carried on board.
3.7
3.3.1 Non-cargo ship means ship other than cargo ship
defined here above.
Passenger
3.4.1 A passenger is every person other than:
• a child under one year of age
• the special personnel
Place of refuge
3.7.1 “Place of refuge” is any naturally or artificially sheltered area, which may be used as a shelter by a ship under
conditions likely to endanger its safety.
3.8
• the master and the members of the crew or other persons
employed or engaged in any capacity on board a ship on
the business of that ship
Industrial personnel (IP)
Adapted sea state
3.8.1 Adapted sea state means sea state compatible with
structural design parameters of the ship, i.e. the sea state in
which the ship may operate depending on its actual speed.
4
Applicable rules
• the industrial personnel.
4.1
3.5
Special Personnel (SP)
3.5.1 “SP” means all persons who are not passengers or members of the crew or children of under one year of age and who
are carried on board in connection with the special purpose of
that ship or because of special work being carried out aboard
that ship Special Personnel shall have received special training
course before being allowed to be carried on board.
General
4.1.1 Otherwise specified in the present Guidance Note,
the detailed references of applicable Rules are given in Tab
3 and Tab 4.
For machinery, electricity and automation, and fire fighting
and prevention, the applicable requirements in the Rules
are those for applicable cargo ships or non-cargo ships,
unless otherwise specified in the present Note.
Table 3 : Small and medium wind farms service ships (notation S0, S1,S2 or M0, M1, M2)
Small and medium (< 500GT)
S0, M0
S1, M1
GENERAL ARRANGEMENT
NR396
STABILITY
Intact
NR396, Ch 2
NR396, Ch 2
NR396, Annex 7 or 8 NR396, Annex 7 or 8
NR566, Ch 1, Sec 3
Damage
NR396, Ch 2
NR396, Ch 2
NR566, Ch 1, Sec 3
General scantlings
NR396
NR490
NR600, Ch 4
NR467, Pt B, Ch 8
NR600, Ch 4
Loads
NR396, Ch 3
NR490, Sec 3
NR600, Ch 3
NR600, Ch 3
Equipment
NR396, Ch 6
NR490, Sec 4
NR600, Ch 5, Sec 5
NR600, Ch 5, Sec 5
MACHINERY
NR566, Ch 2
NR566, Ch 2
NR566, Ch 2
ELECTRICITY AND AUTOMATION
NR566, Ch 3
NR566, Ch 3
NR566, Ch 3
FIRE AND SAFETY
NR566, Ch 4
NR566, Ch 4
NR566, Ch 4
STRUCTURE
10
NR566, Ch 1
S2, M2
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NR566 Ch 1
August 2014
NI 589, Sec 1
Table 4 : Large wind farms service ships (notation L0, L1, L2)
Large (≥ 500GT)
L1
L0
L < 90m (1)
L2
L ≥ 90m (2)
GENERAL ARRANGEMENT
NR467
NR600
STABILITY
Intact
NR396, Ch2
NR396, Annex 7 or Annex 8
NR396, Ch 2
NR396, Annex 7 or Annex 8
NR467
NR467, Pt B, Ch 3
Damage
NR396, Ch 2
NR396, Ch2
NR467
NR467, Pt B, Ch 3
General scantlings
NR467
NR600
NR467, Pt B, Ch7
NR467, Pt B, Ch8
NR467, Pt B, Ch 7
NR467, Pt B, Ch 8
Loads
NR396, Ch 3
NR600
NR467, Pt B, Ch5
NR396, Ch 3
NR 467, Pt B, Ch 5
Equipment
NR396, Ch 6
NR600
NR467, Pt B, Ch 9
NR 467, Pt B, Ch 9
MACHINERY
NR396, Ch 9
NR396 Ch 10
NR396, Ch 9
NR396, Ch 10
NR467, Pt C, Ch 1
ELECTRICITY AND AUTOMATION
NR396, Ch 11
NR396, Ch 12
NR396, Ch 13
NR396, Ch 14
NR396, Ch 11
NR396, Ch 12
NR396, Ch 13
NR396, Ch 14
NR467, Pt C, Ch 2
NR467, Pt C, Ch 3
FIRE AND SAFETY
NR396, Ch 7
NR396, Ch 8
NR396, Ch 7
NR396, Ch 8
NR467, Pt C, Ch 4
STRUCTURE
(1)
(2)
NR467
NR467
or L<65m for cargo ship
or L≥65m for cargo ship
August 2014
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NI 589, Sec 2
SECTION 2
1
GENERAL ARRANGEMENT
Ch 2, Sec 2, [3] is to be applied, unless otherwise specified
in the present Rule Note.
General
1.1
Application
1.1.1
Applicable rules
Regarding the general arrangement of Wind farms service
ships, the following Rules are references:
2.4.2 Other ships
For Wind farms service ship - L1 or L2 with length greater
than 90 m (for non cargo-ship) or 65m (for cargo ship),
NR467, Pt B, Ch 2, Sec 1 is to be applied, unless otherwise
specified in the present Note.
• NR396 for light ships (S0, L0)
3
• NR490 for small and medium light ships (S0, M0)
Compartment arrangement
• NR566 for small and medium ships (S1, S2, M1, M2)
• NR600 for non cargo ship of length less than 90m or
cargo ship of length less than 65m
3.1
Small and medium light ship (S0, M0)
• NR467 for large ships (L1, L2).
3.1.1 For Wind farms service ship - S0 or M0, NR490, Sec
1, [3.3] and NR396, Chapter 15 are to be applied.
1.1.2 Parts of Rules to be applied for each operational notation S0, S1, S2, M0, M1, M2, L0, L1, L2 are specified in this
Section.
3.2
2
Subdivision arrangement
2.1
Large light ship (L0)
3.2.1 For Wind farms service ship - L0, NR396, Chapter 15
is to be applied.
3.3
Number of watertight bulkheads
2.1.1 At least the following watertight bulkheads are to be
fitted in all ships:
Small and medium ship other than light
ship (S1, S2 or M1, M2)
3.3.1 For Wind farms service ship - S1 or S2, NR566, Ch 1,
Sec 2, [2] is to be applied.
• one collision bulkhead
3.4
• one afterpeak bulkhead
• one bulkhead at each end of the machinery space.
3.4.1
Additional bulkheads may be required for ships having to
comply with SDS additional notation.
2.2
Light ship (S0, M0, L0)
2.2.1 For Wind farms service ship - S0 or L0, NR396, Ch 2,
[2.1] and [2.2] are to be applied, unless otherwise specified
in the present Note.
2.3
Small and medium ship other than light
ship (S1, S2 or M1, M2)
2.3.1 For Wind farms service ship - S1, M1 or S2, M2,
NR566, Ch 1 Sec 2, [1] is to be applied, unless otherwise
specified in the present Note.
2.4
Non-cargo ship of length L < 90m and cargo
ship of length L < 65m
For Wind farms service ship - L1 or L2 when length is less
than 90 m (for non-cargo ship) or 65m (for cargo ship),
NR600, Ch 2, Sec 2, [4] is to be applied.
3.4.2 Other ship
For Wind farms service ship - L1 or L2 when length is
greater than 90 m (for non-cargo ship) or 65m (for cargo
ship), NR467, Pt B, Ch 2, Sec 2 is to be applied.
4
4.1
Small and medium light ship (S0, M0)
Large ship other than light ship (L1, L2)
Non-cargo ship of length L< 90 m and cargo
ship of length L< 65m
For Wind farms service ship - L1 or L2 with length less than
90 m (for non-cargo ship) or 65 m (for cargo ship), NR600,
12
Access arrangement
4.1.1 For Wind farms service ship - S0 or M0, NR490, Sec
1, [3.4] is to be applied.
4.2
2.4.1
Large ship other than light ship (L1, L2)
Small and medium ship other than light
ship (S1, S2, M1, M2)
4.2.1 For Wind farms service ship - S1, M1 or S2, M2,
NR566, Ch 1, Sec 2, [3] is to be applied.
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August 2014
NI 589, Sec 2
4.3
Large ship other than light ship (L1, L2)
Non-cargo ship of length L < 90m and cargo
ship of length L < 65m
For Wind farms service ship - L1 or L2 when length is less
than 90 m (for non-cargo ship) or 65 m (for cargo ship),
NR600, Sec 2,[5] is to be applied.
5.2
4.3.1
Small and medium ship other than light
ship (S1, S2, M1, M2)
5.2.1 For Wind farms service ship - S1, M1 or S2, M2,
NR566, Ch 1, Sec 2, [5] is to be applied, considering the
ship as a crew boat.
4.3.2 Other ship
For Wind farms service ship - L1 or L2 when length is
greater than 90 m (for non-cargo ship) or 65 m (for cargo
ship), NR467, Pt B, Ch 2, Sec 3 is to be applied.
6
5
6.1.1 For Wind farms service ship - S0, M0 or L0, NR396,
Ch 4, [4.11] is to be applied, considering industrial personnel as crew.
5.1
Accommodation
Light ship (S0, M0, L0)
6.1
Crew / IP protection
Light ship (S0, M0, L0)
5.1.1 For Wind farm service ship - S0, M0 or L0, NR396,
Ch 4, [C4.0] is to be applied, unless otherwise specified,
considering industrial personnel as passenger.
6.2
5.1.2 Operating controls placed in accommodation space
are to be protected and located as their operation by the
crew is not impeded.
6.2.1 For Wind farms service ship - S1, M1 or S2, M2,
NR566, Ch 1, Sec 2, [6] is to be applied.
5.1.3 Controls, electrical equipment, high temperature
parts and pipelines, rotating assemblies are to be adequately shielded, isolated or protected to avoid injury of
industrial personnel.
6.3
August 2014
Small and medium ship other than light
ship (S1, S2, M1, M2)
Large ship other than light ship (L1, L2)
6.3.1 For Wind farms service ship - L1 or L2, NR467, Pt B,
Ch 9, Sec 2 is to be applied.
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NI 589, Sec 3
SECTION 3
1
STABILITY
General
1.1
2.1.3 Monohull
In addition to [2.1.1], NR396, Annex 8 is to be applied for
monohull ship.
Application
1.1.1 Applicable rules
Regarding the stability of Wind farms service ships, the following rules are references:
• NR396 for light ships (S0, M0, L0)
• NR566 for other small or medium ships (S1, S2, M1,
M2)
2.2
Conventional small and medium ship
(S2, M2)
2.2.1 For Wind farms service ships - S2, M2, NR566, Ch 1,
Sec 3, [2] is to be applied.
2.3
Conventional large ship (L2)
• NR467 for other large ships (L1, L2)
1.1.2 Rules to be applied for each operational notation S0,
S1, S2, M0, M1, M2 and L0, L1, L2 are specified in this Section.
1.2
Document to be submitted
• General arrangement
• Capacity plan, indicating the volume and position of the
centre of gravity of all compartments and tanks
• Lines plan
• Hydrostatic curves
• Lightweight distribution.
1.2.2 For approval
The following documents are to be submitted for approval:
• Inclining test report for the ship
• Trim and stability booklet
• As practicable:
• damage stability calculations
• damage control documentation
• loading computer documentation.
2.1
Damage stability
Light and bi-mode ship (S0, S1, M0, M1,
L0, L1)
3.1.1 General
For Wind farm service ship - S0, S1, M0, M1 or L0, L1,
NR396, Ch 2, Pt A, [2.6] and NR396, Ch 2, Pt C are to be
applied.
3.1.2
Extend of bottom damage for small and
medium ship
For Wind farms service ship - S0, M0 or S1, M1, NR396, Ch
2, Pt A, [2.6.9] related to the extend of bottom damage in
areas not vulnerable to raking damage is not applicable.
3.1.3 Side damage for ship with length L < 45m
The assumption of side damage anywhere on the periphery
of the craft, as required by NR396, Ch 2, Pt A , [2.6.7] and
(2.6.10] are to be apply only in the area of the third of the
length from the forward perpendicular. Aft of this part, side
damages are to be assumed within compartments. No damage of bulkhead is to be assumed in that area.
3.1.4 Multihull ship
In addition, NR396, Annex 7 is to be applied for multihull
ship.
Intact stability
Light and bi-mode ship (S0, S1, M0, M1
L0, L1)
2.1.1 General
For Wind farms service ships - S0, S1, M0, M1 or L0, L1,
NR396, Ch 2, Pt A, [2.3], [2.4] and [2.5]; and NR396, Ch 2,
Pt C are to be applied.
2.1.2 Multihull
In addition to [2.1.1], NR396, Annex 7 is to be applied for
multihull ship.
14
3
3.1
1.2.1 For information
The following documents are to be submitted for information:
2
2.3.1 For Wind farms service ships - L2, NR467, Pt B, Ch 3,
Sec 2 is to be applied.
3.1.5 Monohull ship
In addition, NR396, Annex 8 is to be applied for monohull
ship.
3.2
Small and medium conventional ship
(S2, M2)
3.2.1 For Wind farm service ship - S2, M2, NR566, Ch 1,
Sec 3, [3] is to be applied if additional class notation SDS is
requested.
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August 2014
NI 589, Sec 3
3.3
Large conventional ship (L2)
3.3.1 Damage stability calculation is required for ships
which have been requested to received SDS additional class
notation.
3.3.3 In addition, NR467, Pt D, Ch 11, Sec 3, [1.3] is applicable, considering industrial personnel as passenger.
The attained subdivision index A, as defined in NR467, Pt
D, Ch 11, Sec 3, [1.3.3] is not to be less than 0,8 R.
3.3.2 For Wind farm service ships - L2, the Rule Note
NR467, Pt B, Ch 3, Sec 3 is to be applied if additional class
notation SDS is requested.
August 2014
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15
NI 589, Sec 4
SECTION 4
1
1.1
STRUCTURE
The factor of operating condition foc defined in NR600, Ch
3, Sec 3, Table 4 is to be taken equal to 0,85.
General
Application
1.1.1 Applicable rules
Regarding the structure of the Wind farm service ships, the
following rules are references:
• NR396 for light ships (S0, M0, L0)
• NR600 for non cargo ship of length less than 90m or
cargo ship of length less than 65m
• NR467 for non cargo ship of length greater than 90m or
cargo ship of length greater than 65m.
1.1.2 Parts of Rule to be applied for each operational notation S0, S1, S2, M0, M1, M2, L0, L1, L2 are specified in this
Section.
2
2.1
2.2.3 Industrial personnel is to be considered as passengers.
2.3
Other ships
2.3.1 For Wind farms service ships - M1, M2 or L1, L2,
when length is greater than 90 m (for non-cargo ship) or 65
m (for cargo ship), NR467, Pt B, Ch 4 to Ch 7 are applicable.
2.3.2 Bi-mode ship (S1, M1, L1)
In addition, for Wind farms service ships - S1, M1 or L1,
NR396, Ch 3 is applicable
The factor of operating condition foc defined in NR396, Ch
3, Table C3.3.1 is to be taken equal to 0,85.
Design principle and hull structure
Light ship (S0, M0, L0)
3
Other structures
2.1.1 For Wind farms service ships - S0, M0 or L0, NR396,
Ch 3 is applicable.
3.1
2.1.2 Design loads
The factor of operating condition foc defined in NR396, Ch
3, Tab C3.3.1 is to be taken equal to 0,85.
3.1.1 For Wind farms service ships - S1, M1 or S2, M2,
NR566, Ch 1, Sec 4 is applicable.
3.2
2.2
Non-cargo ship of length L<90m and
cargo ship of length L< 65m
2.2.1 For Wind farms service ships - S1, S2, M1, M2 or L1,
L2, when length is less than 90 m (for non-cargo ship) or
65m (for cargo ship), NR600, Ch 1 to Ch 4 are applicable.
2.2.2 Bi-mode ships (S1, M1, L1)
In addition, requirements of NR600, Ch 3, Sec 3 relevant
for high speed ship are to be applied.
16
Small and medium ship other than light
ship (S1, S2, M1, M2)
Non-cargo ship of length L<90m and
cargo ship of length L<65m
3.2.1 For Wind farms service ships - S1, S2, M1, M2, L1 or
L2, NR600, Ch 5 is applicable.
3.3
Non-cargo ship of length L>90m and
cargo ship of length L>65m
3.3.1 For Wind farms service ships - M1, M2, L1 or L2,
NR467, Pt B, Ch 8 is applicable.
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August 2014
NI 589, Sec 5
SECTION 5
1
HULL OUTFITTING
General
1.1
3.1.2 For ship which proceed in the course of their voyage
more than 4 hours at operational speed from a place of refuge, society may consider special requirements.
Application
1.1.1 Regarding the hull outfitting of the Wind farm service
ships, the following rules are references:
• NR490 for small and medium light ship (S0, M0)
• NR396 for large light ship (L0)
• NR600 for non cargo ship of length less than 90m or
cargo ship of length less than 65m
• NR467 for non cargo ship of length greater than 90m or
cargo ship of length greater than 65m.
1.1.2 Parts of Rule to be applied for each operational notation S0, S1, S2, M0, M1, M2, L0, L1, L2 are specified in this
Section.
2
Large light ship (L0)
3.2.1 For Wind farms service ships - L0, NR396, Ch 6 is
applicable.
3.2.2 For ship which proceed in the course of their voyage
more than 4 hours at operational speed from a place of refuge, Society may consider special requirements.
3.3
Other ships
3.3.1
Rudder
2.1
3.2
Small and medium light ship (S0, M0)
2.1.1 For Wind farms service ships - S0 or M0, NR490, Sec
4, [2] is applicable.
For Wind farms service ships with length L < 90 m (for noncargo ship) or L < 65 m (for cargo ship), NR600, Ch 5, Sec 5
is applicable.
3.3.2
2.2
Large light ship (L0)
2.2.1 For Wind farms service ships - L0, NR396, Ch 3,
[C3.10] is applicable.
2.4
Other ship
2.4.1
Non-cargo ship of length L < 90 m and cargo
ship of length L < 65 m
For Wind farms service ships with length L < 90 m (for noncargo ship) or L < 65 m (for cargo ship), NR600, Ch 5, Sec
2, [8] is applicable.
2.4.2 Other ship
For Wind farms service ships with length L > 90 m (for noncargo ship) or L > 65 m (for cargo ship), NR467, Pt B, Ch 9,
Sec 1 is applicable.
3.1
Hull appendages
Large bi-mode ship (L1)
2.3.1 For Wind farms service ships - L0, NR396, Ch 3,
[C3.10] and NR467, Pt B, Ch 9, Sec 1 are applicable
3
Other ship
For Wind farms service ships with length L > 90 m (for noncargo ship) or L > 65 m (for cargo ship), NR467, Pt B, Ch 9,
Sec 4 is applicable.
4
2.3
Non-cargo ship of length L < 90 m and cargo
ship of length L < 65 m
Equipment
3.1.1 For Wind farms service ships - S0 or M0, NR490, Sec
4, [3] is applicable.
Small and medium light ship (S0, M0)
4.1.1 For Wind farms service ships - S0 or M0, NR490, Sec
4, [1] is applicable.
4.2
Large light ship (L0)
4.2.1 For Wind farms service ships - L0, NR396, Ch 3,
[C3.9] is applicable.
4.3
4.3.1
Other ships
Non-cargo ship of length L < 90 m and cargo
ship of length L < 65 m
For Wind farms service ships with length L < 90 m (for noncargo ship) or L < 65 m (for cargo ship), NR600, Ch 5, Sec
2, [9] and 11] are applicable.
4.3.2
Small and medium light ship (S0, M0)
August 2014
4.1
Other ship
For Wind farms service ships with length L > 90 m (for noncargo ship) or L > 65 m (for cargo ship), NR467, Pt B, Ch 9,
Sec 3 is applicable.
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17
NI 589, Sec 5
5
5.1
Stabilisation means
5.2
Small and medium light ship (S0, M0)
5.2.1 For Wind farms service ships - S0 or M0, NR490, Sec
4, [4] is applicable.
General
5.1.1 Stabilization means may be considered for the following operations:
• transit of industrial personnel from shore to offshore
windfarm
• transfer of personnel
• watch dog
• stand period near windfarm.
5.3
Large light ship (L0)
5.3.1 For Wind farms service ships - L0, NR396, Ch 3,
[C3.11] and NR396, Ch 16 are applicable.
5.4
Other ships
5.4.1
Non-cargo ship of length L<90m and cargo
ship of length L<65m
For Wind farms service ships with length L < 90 m (for noncargo ship) or L < 65 m (for cargo ship), NR600, Ch 5, Sec
2, [10] is applicable
18
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August 2014
NI 589, Sec 6
SECTION 6
1
1.1
MACHINERY
General
2.2
Small and medium ship other than light
ship (S1, S2, M1, M2)
Application
1.1.1 Applicable rules
Regarding the machinery of Wind farms service ships, the
following Rule Notes are references:
• NR396 for light ship (S0, M0, L0)
• NR566 for small and medium ship (S1, S2, M1, M2)
• NR467 for large ship (L1, L2)
2.2.1 For Wind farms service ships - S1, M1 or S2, M2,
NR566, Ch 2 is to be applied, unless otherwise specified in
the present Note.
2.2.2 In addition, NR566, Ch 1, Sec 4 is applicable.
2.2.3
Bilge pump
1.1.2 Part of Rules to be applied for each operational notation S0, S1, S2, M0, M1, M2, L0, L1, L2 are specified in this
Section.
NR566, Ch 2, Sec 5, [1.2.1], item d) is not applicable.
2
For multi hull ship, pumps are to be able to pump bilge in
all hulls.
2.1
General requirements
At least two power bilge pumps are to be provided; one of
these pumps may be driven by a main propulsive engine.
Light ship (S0, M0, L0)
2.1.1 For Wind farms service ships - S0, M0 or L0, NR396,
Ch 9, Pt A and Pt B; and NR396, Ch 10, Pt A and Pt B are to
be applied.
2.3
Note 1: Light ships shall fulfill requirements for Type B passenger
crafts. A Failure Mode and Effects Analysis (FMEA) shall be carried
out.
2.3.1 For Wind farms service ships - L1 or L2, NR467, Pt C,
Ch 1 is to be applied.
August 2014
Bureau Veritas
Large ship other than light ship (L1, L2)
19
NI 589, Sec 7
SECTION 7
1
1.1
ELECTRICITY AND AUTOMATION
General
3.3
3.3.1 For Wind farms service ships - L1 or L2, NR467, Pt C,
Ch 2, Sec 3 is applicable.
Application
1.1.1 Applicable rules
Regarding the electricity and automation of Wind farms
service ships, the following rules are references:
• NR396 for light ship (S0,M0, L0)
• NR566 for other small and medium ship (S1,S2, M1,
M2)
• NR467 for other large ship (L1, L2).
1.1.2 Part of Rule to be applied for each operational notation S0, S1, S2, M0, M1, M2, L0, L1, L2 are specified in this
Section.
2
2.1
General design requirements
Small and medium ship other than light
ship (S1, S2, M1, M2)
Large ship other than light ship (L1, L2)
2.3.1 For Wind farms service ships - L1 or L2, NR467, Pt C,
Ch 2, Sec 1 and Sec 2 are applicable.
2.3.2 High voltage
In addition, for high voltage installation, NR467, Pt C, Ch 2,
Sec 13, [1] is applicable.
3
4
4.1
4.2.1 For Wind farms service ships - S1, M1 or S2, M2,
NR566, Ch 3, Sec 3 is applicable.
4.3
Large ship other than light ship (L1, L2)
4.3.1 For Wind farms service ships - L1 or L2, NR467, Pt C,
Ch 2, Sec 4 to Sec 10 are applicable.
4.3.2 High voltage
In addition, for high voltage installation, NR467, Pt C, Ch 2,
Sec 13, [3] to [6] are applicable.
5
5.1
Location and installation
Light ship (S0, M0, L0)
5.1.1 For Wind farms service ships - S0, M0 or L0, NR396,
Ch 12 is applicable.
Light ship (S0, M0, L0)
Small and medium ship other than light
ship (S1, S2, M1, M2)
3.2.1 For Wind farms service ships - S1, M1 or S2, M2,
NR566, Ch 3, Sec 2 is applicable.
Small and medium ship other than light
ship (S1, S2, M1, M2)
5.2.1 For Wind farms service ships - S1, M1 or S2, M2,
NR566, Ch 3, Sec 4 is applicable.
5.3
3.1.2 In addition, NR396, Ch 12, Pt B is applicable.
20
Small and medium ship other than light
ship (S1, S2, M1, M2)
System design
3.1.1 General
For Wind farms service ships - S0, M0 or L0, NR396, Ch
12, Pt A is applicable.
3.2
Light ship (S0, M0, L0)
4.1.1 For Wind farms service ships - S0, M0 or L0, NR396,
Ch 13 and Ch 14 are applicable.
5.2
3.1
Equipment
Light ship (S0, M0, L0)
2.2.1 For Wind farms service ships - S1, M1 or S2, M2,
NR566, Ch 3, Sec 1 is applicable.
2.3
3.3.2 High voltage
In addition, for high voltage installation, NR467, Pt C, Ch 2,
Sec 13, [2] is applicable.
4.2
2.1.1 For Wind farms service ships - S0, M0 or L0, NR396,
Ch 12, [12.1] is applicable.
2.2
Large ship other than light ship (L1, L2)
Large ship other than light ship (L1, L2)
5.3.1 For Wind farms service ships - L1 or L2, NR467, Pt C,
Ch 2, Sec 11 and Sec 12 are applicable.
5.3.2 High voltage
In addition, for high voltage installations, NR467, Pt C, Ch
2, Sec 13, [7] is applicable.
Bureau Veritas
August 2014
NI 589, Sec 7
6
6.1
Automation
6.2
Light ship (S0, M0, L0)
6.1.1 For Wind farms service ships - S0, M0 or L0, NR396,
Ch 5 and Ch 11 are applicable.
Small and medium ship other than light
ship (S1, S2, M1, M2)
6.2.1 For Wind farms service ships - S1, M1 or S2, M2,
NR566, Ch 3, Sec 5 and Sec 6 are applicable.
6.3
Large ship other than light ship (L1, L2)
6.3.1 For Wind farms service ships - L1 or L2, NR467, Pt C,
Ch 3 is applicable.
August 2014
Bureau Veritas
21
NI 589, Sec 8
SECTION 8
1
FIRE AND SAFETY
Otherwise specified, requirements for passenger ships carrying not more than 36 passengers are to be applied.
General
1.1
1.1.1
Application
2
Applicable rules
Life-saving appliances
Regarding the fire protection and safety of Wind farms service ships, the following rules are references:
2.1
• NR396 for light ship,
2.1.1 For Wind farms service ships - S0, M0 or L0, NR396,
Ch 8 is applicable.
• NR566 for small and medium ship
Light ship (S0, M0, L0)
• NR467 for large ship
2.1.2
• SOLAS.
NR396, Ch 8, [8.3.5.1] is not applicable.
1.1.2 Part of Rules to be applied for each operational notation S0, S1, S2, M0, M1, M2, L0, L1, L2 are specified in this
Section.
1.2
1.2.1
Requirements
2.1.3
Lifejacket
Rescue boat embarkation
NR396, Ch 8, [8.7.6] is not applicable.
2.1.4
Multihull ship
NR396, Ch 8, [8.7.8] is not applicable.
Small and medium ship (S0, S1, S2, M0, M1,
M2)
For Wind farms service ships - S0, S1, S2 or M0, M1, M2,
NR566, Ch 4 is applicable.
2.1.5
Otherwise specified, requirements for crew boat carrying
less than 60 persons onboard are to be applied.
For ship operates only in warm climates, immersion suits
may not to be required when deemed appropriate by the
Society.
1.2.2
Immersion suits are available for every person onboard.
Large light ship (L0)
For Wind farms service ships - L0, NR396, Ch 4 is applicable.
Otherwise specified, requirements for passenger craft are to
be applied.
1.2.3
Immersion suits
2.1.6
Open reversible liferafts, according to NR396, Annex11,
are not to be used.
2.2
Large bi-mode ship (L1)
For Wind farms service ships - L1, NR467, Pt C, Ch 4 and
NR396, Ch 4 are applicable.
Liferafts
Other ship (S1, M1, L1, S2, M2, L2)
2.2.1 For Wind farms service ships - S1, S2, M1, M2, L1,
L2, the Chapter III of the SOLAS for cargo ship is applicable,
unless otherwise specified in the present Note.
Otherwise specified, requirements for passenger ships carrying not more than 36 passengers are to be applied.
2.2.2
1.2.4
Large conventional ship (L2)
For Wind farms service ships - L2, NR467, Pt C, Ch 4 is
applicable.
22
Ship of length L<45m
Ship is to be equipped with either a rescue boat or an efficient means rapidly recovering survivor from the water in
accordance to Chapter III of SOLAS.
Bureau Veritas
August 2014
NI 589, Sec 9
SECTION 9
1
SPECIFIC REQUIREMENTS
Vw
General
1.1
: Sea state additional speed, in m/s
• for shallow water:
Vw = 0,5 (g/d)0,5Hs
Application
• for deep water: Vw = π Hs/Tp
1.1.1 This Section contains requirement specific to Wind
farms service ships. It includes:
where:
d
: Water depth, in m
: Significant wave height,
Hs
in m
Tp
: Peak period, in s
g
: Acceleration of gravity,
in m/s2.
• personnel transfer requirements
• lifting requirements.
2
Transfer of personnel
2.1
General
2.1.1 Clear definition of operating limit conditions to be
respected during transfer of personnel from/to wind turbine
platform is to be stated in operational manual.
2.1.2 When arranged with bump and jump transfer
method, the ship area of contact to the wind turbine structure is to be protected according to below.
2.1.3 Specific access system, such as motion compensated
platform may be accepted on case by case basis.
2.2
Fendering
2.2.1 Fendering arrangement
When the ship is intended to be pushed against another
structure (as wind turbine landing structure), the contact
area is to be protected by fender.
2.2.2 Energy absorbed by fenders
Energy to be absorbed by fenders, Ef, is to be calculated by
the following formula:
E f = 0.5 ⋅ am c ⋅ Δ ⋅ V imp
2
: Added mass coefficient
• for bow or stern landings: amc = 1,25
• for sideways landings:
: Displacement of the ship, in tonnes
Vimp
: Ship speed at the moment of the impact, in m/s
not to be less than 0,5 m/s.
F imp = 2, 5 × Δ
Note 1: All the ship parts in regular contact to another structure (as
wind turbine landing structure) are to be considered as contact
area.
2.4
Platform
2.4.1 Field of vision
Navigation bridge is to have a clear view of the transfer
area.
2.4.2 Sheathing of transfer area
Within the transfer area, a non-skid deck covering is recommended.
2.4.3 Location
Transfer area should not be placed near the propeller of the
ship, otherwise special equipment shall be provided to protect human from overboard.
3
If not known, Vimp can be calculated by the following:
3.1
where:
: Approach speed, in m/s
Access system
2.5.1 Lifting appliances system
Systems for transfer of personnel using lifting appliances are
to be reviewed according to applicable requirements given
in NR526.
The impact ship speed Vimp depends on environmental conditions (seastate, wind).
Vimp = Vapp + Vw
August 2014
2.3.1 The contact area of the ship is to be designed to withstand the following impact force Fimp, in kN:
2.5
amc = 1,4
Δ
Vapp
Contact area
2.4.4 Handrails and guard rails
Handrails or guard rails are to be fitted in the transfer area.
where:
amc
2.3
Noise and vibration
Noise level
3.1.1 Light ship (S0, M0, L0)
For Wind farms service ships - S0, M0 or L0, NR396, Ch 4,
[4.10] is to be applied.
Bureau Veritas
23
NI 589, Sec 9
3.1.2 Other ships
For Wind farms service ships - S1, M1, L1 or or S2, M2, L2,
the IMO Resolution MSC337(91) Annex1 is to be applied.
The additional notation COMF-NOISE may be granted
accordingly comfort.
4.1.2 Additional notation ALM may be assigned for lifting
in offshore condition.
3.2
4.2
Vibration level
4.1.3 Additional notation ALP may be assigned for lifting at
harbour.
Containers
3.2.1 Vibration induced by propeller
For ship intended to be pushed against structure (for personnel transfer), propeller considered for push condition is recommended. In case of fixed pitch propeller, pitch
determination should be considered for the push condition,
and not cause overloading of the engines.
4.2.1 Containers are to be correctly fixed to prevent any
sliding, titling or lifting.
3.2.2 The additional notation COMF-VIB may be granted
accordingly comfort.
4.3
4
4.1
Fuel oil bunkering
4.3.1 Ships covered by this present Note are assumed to
have a fuel oil quantity on board limited to the need of the
service of diesel generators fitted on offshore installations
(wind turbines).
Cargo
Lifting
4.1.1 Lifting appliances such as cranes, are to be considered accordingly NR526.
24
4.2.2 Local forces induced by containers are to be calculated.
4.3.2 Fuel oil is considered to have a flashpoint (determined using the closed cup test) not less than 60°C.
Bureau Veritas
August 2014