Section 4 Quality of power supplies
Clasification Society 2024 - Version 9.40
Clasifications Register Rules and Regulations - Submarine Assurance Framework, July 2022 - Volume 1 Submarine Assurance - Part 4 Whole Boat Requirements - Chapter 3 Requirements for Systems - Section 4 Quality of power supplies

Section 4 Quality of power supplies

Parent topic: Chapter 3 Requirements for Systems

4.1 Functional objective

4.1.1 The range of electrical powersupply variation which can be experienced on a submarine shall be defined for all foreseeable operating conditions.

4.2 Performance requirements

4.2.1 harmonic distortion, for electrical equipment shall be defined for normal, abnormal operating and emergency conditions for each circuit.

4.2.2 Voltage and frequency permanent and transient limits are to be set giving due consideration to variations in electrical power generation and loads during normal and abnormal operating conditions, e.g. the starting and stopping of generators and consumers.

4.2.3 For electrical installations that may be supplied by batteries the quality of power supplies shall be defined throughout the specified charge and discharge cycles of the batteries.

4.2.4 The submarine, equipment and components that are required to operate on each circuit are to be identified. They shall be able to operate with the defined levels of electrical power supply variation for that circuit or be fitted with suitable protection measures.

4.2.5 Electrical equipment insulation resistance shall be sufficient for the full range of conditions defined.

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