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SIMOTICS FD (air-cooled and water-cooled) motors in marine design have been developed for operation below deck onboard ships. Motors intended for on deck operation or for offshore applications must be explicitly ordered using an additional order code (Article No. with additional identification code -Z and order code). The reason for this is that in these cases special measures are required. The thermal utilization of the motors is matched to the generally higher ambient temperatures onboard ship. If the application demands compliance with additional regulations, such as explosion protection, the appropriate motor series must be chosen.
The motors onboard ships are subdivided into three classes of importance by the marine classification societies in collaboration with customers, depending on the application:
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Essential Service for Propulsion or also "Primary Essential Service"
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Essential Service or also "Secondary Essential Service" or "Important Service"
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Non?essential Service or also "Non-Important Service"
As the assignment of a drive to one of the importance classes has a direct impact on the scope of the marine options, this must be known when ordering the motor
The following services of the motor manufacturer are associated with the classes:
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Class of importance
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Essential Service for Propulsion
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Essential Service
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Non?essential Service
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General breakdown
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Drives integrated into the propulsion system of the ship.
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Safety-related drives whose failure must not cause loss of maneuverability of the ship, nor place onboard safety at risk.
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Drives and systems that are outside the responsibility of the classification societies.
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Typical applications
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Propeller drive, dynamic positioning drives, booster drives and shaft generators
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Lateral thrust units, anchor winches, oil and ballast pumps, fire-fighting pumps
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Pumps for service water, winches, dredging pumps, fans
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Design
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In accordance with regulations of the classification society
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Acceptance test certificate 3.2 according to EN 10204
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In accordance with ambient conditions of the classification society
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Acceptance test certificate
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Acceptance test certificate 3.2 according to EN 10204
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Acceptance test certificate 3.1 according to EN 10204 1)
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Individual acceptance by classification society
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Will be performed. Motor is assigned an individual certificate of the classification society.
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Not required
A declaration of conformity is provided with the motor.
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Ordering several identical motors
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Differentiation between the first motor and additional ones must be realized when ordering using an order code.
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No distinction
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Rating plate data
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Information about ambient conditions of the classification society
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Stamp of the classification society
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Stamp on the shaft 2) and motor housing
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No stamp
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1) Certificate is not stipulated by every classification society, but is always issued according to the internal quality standards within the scope of a routine test.
2) Provided that it is specified that the classification society supervises construction.
Classification societies
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Society
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Abbreviation
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Location
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American Bureau of Shipping
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ABS
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USA
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Bureau Veritas
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BV
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France
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China Classification Society
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CCS
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China
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Det Norske Veritas
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DNV
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Norway
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Germanischer Lloyd
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GL
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Germany
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Korean Register
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KR
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Korea
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Lloyds Register
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LR
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UK
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Nippon Class
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NK
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Japan
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Russian Maritime Register Of Shipping
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RMRS
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Russia
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Other national classifications can be provided on request.
Regulations of the individual classification societies for motors:
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Classification society
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Coolant temperature CT
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Admissible temperature rise limit according to the classification society
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Rated power limit for individual acceptance test
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Construction supervision mandatory
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Water cooling
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Air cooling
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Temperature class
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130 (B)
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155 (F),
Prated < 5000 kW
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155 (F),
Prated ? 5000 kW
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°C
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°C
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K
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K
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K
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kW
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kW
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ABS
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32
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50
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70
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95
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90
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? 100
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–
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BV
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32
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45
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75
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100
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95
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? 100
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? 500
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CCS
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32
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45
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75
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100
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95
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? 50
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? 50
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DNV
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32
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45
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75
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100
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100
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? 300
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–
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GL
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32
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45
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75
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100
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100
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? 50
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All propulsion
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KR
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32
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45
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75
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100
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95
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? 7,5
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–
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LR
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32
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45
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70
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95
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90
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? 100
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? 100
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NK
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32
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45
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75
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100
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95
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All power ratings
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–
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RMRS
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32
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45
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75
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95
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95
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? 100
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–
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