Section
1 General
1.1 General
1.1.1 These
optional requirements apply to the safety, reliability and availability
of shipboard machinery, electrical and control engineering arrangements
installed to permit continued operation of services by connection
to an external electrical power supply in port. These requirements
are additional to those applicable in other Parts of the Rules. Regular
operation of ship's services from an external electrical power supply
is often referred to as On-shore Power Supply, Cold Ironing, High
Voltage Shore Connection or Alternative Marine Power.
1.1.2 These
requirements are intended for application to the shipboard elements
of designs where the connection(s) with external power supply arrangements
are achieved by either extending ship cables from the ship to the
external power supply connection points or by bringing external cables
on board to connect to shipboard connection points. However, external
equipment and machinery (including shore based transformers, circuit
breakers, gantries, cables, connectors and control engineering arrangements)
are not covered by classification or these requirements.
1.1.3 Compliance
with these requirements is intended to assess the suitability of shipboard
arrangements for the documented intended application and only addresses
compatibility with external power supply arrangements that are suitable
for connection to the installed ship arrangements.
1.1.4 Assessment
of the overall compatibility and suitability of an external electrical
power supply (including combined electrical and control engineering
assessments, compliance with applicable regulations, operating practices
and risk assessment, etc. as applicable) is necessary before connection
and is the responsibility of the Owner. Elements of the overall assessment
of compatibility will be required to be completed in advance to prepare
for a ship visit to a port where it is intended to connect to an external
power supply due to the need to involve competent and responsible
parties.
1.2 Authorities and administrations
1.2.1 Additional
requirements and/or restrictions may be imposed by the National Authority
with which the ship is registered and/or by the appropriate Administration
or Authorities within whose jurisdiction the ship is intended to operate
and/or by the Owners or Authorities responsible for an external electrical
power supply. Where such additional requirements are relevant, compliance
is the responsibility of the Owner. If specifically requested, Clasifications
Register (hereinafter referred to as ‘LR’) may be able
to provide a suitable statement of compliance.
1.2.2 Where
additional requirements imposed by an Authority or Administration
would result in a departure from the requirements of this Chapter,
details demonstrating that safety, availability and reliability will
not be adversely affected are to be submitted to LR for consideration.
1.3 Class notations
1.3.1
OPS machinery
class notation may be assigned where machinery, electrical and control
engineering arrangements installed onboard to permit continued operation
of services by connection to an external electrical power supply are
assessed and found to comply with the requirements of this Chapter.
1.4 Plans and information
1.4.2 Operating
Manuals that describe the intended methods of connection together
with operating and monitoring instructions. Assessments of the external
supplies that are to be connected to the ship together with the mooring
and environmental conditions are to be included. Details of equipment
and arrangements necessary to ensure safety when connecting, disconnecting,
transferring electrical load, testing and operating are to be incorporated.
1.4.3 A Design
Statement which details the Defined Operations. This statement is
to include a description of the operating capability, functionality,
limits and restrictions; in terms of:
- Connection Equipment, see
Pt 7, Ch 13, 1.6 Definitions 1.6.2;
- Connection Equipment routes;
- mooring arrangements;
- environmental conditions including tidal and weather and, where
applicable, electromagnetic conditions required to ensure compatibility
or prevent damage caused by heating or sparking;
- Connection Equipment suitability for hazardous areas, see
Pt 7, Ch 13, 2.1 General requirements 2.1.4 and Pt 6, Ch 2, 1.2 Documentation required for design review 1.2.6
- arrangements for an external connection cable to be brought on
board, where provided;
- Separation details, see
Pt 7, Ch 13, 3.2 Connection equipment 3.2.7;
- the rating of the arrangements;
- ratings and requirements for external power supplies, see
Pt 7, Ch 13, 3.1 General 3.1.10; and
- the services to be supplied.
1.4.4 Arrangement
plans of equipment, control stations, locations, routes to and from
connections, openings and accesses and flexible or movable arrangements.
1.4.8 Details
of supplementary arrangements required to protect equipment from exposure
to moisture, condensation or temperatures outside their rating.
1.4.9 Schedule
of testing at manufacturers’ works, initial surveys and trials.
The test schedules are to address the defined operations and are to
include normal operations and failure conditions.
1.5 Additions and alterations
1.5.1 When
an alteration or addition to the approved arrangements is proposed,
including changes to the defined service profile, details are to be
submitted for consideration.
1.6 Definitions
1.6.1 ‘Defined
Operations’ include the application, connection, electrical
load transfer, in-service operation, failure response, disconnection
and stowage of the connection to an external power supply.
1.6.2 ‘Connection
Equipment’ is the ship equipment used to connect permanently
installed ship equipment with external electrical power supply connection
points in accordance with the Design Statement. This includes, as
applicable, flexible cables, plugs and socket-outlets, slip rings
or other power conductors or control connections, and support and
management measures for these connections. For the purposes of this
Chapter, ‘Connection Equipment’ does not include external
equipment, see
Pt 7, Ch 13, 1.1 General.
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