ISO 25197:2020
Small craft — Electrical/electronic control systems for steering, shift and throttle
This document establishes the requirements for the design, construction and testing of electrical/electronic steering, shift and throttle systems and dynamic positioning control systems, or combinations thereof, on small craft of up to 24 m length of hull.
This document does not apply to electric trolling motors and autopilot systems on sailing craft.
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Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 General requirements
5 Control head
6 Command station transfer
7 Portable helm station controls
8 Dynamic-positioning system (DPS)
9 Failure modes and responses
9.1 Loss of operation
9.2 Loss of computer command logic
10 Test requirements
10.1 General test requirements
10.2 Steering
10.3 Control lever(s) for separate or combined shift and throttle functions
10.4 Joystick
10.5 Environmental-test requirements
10.5.1 General
10.5.2 Salt mist tests
10.5.3 Damp heat — Cyclic
10.5.4 Damp heat — Steady state
10.5.5 High-temperature test — Operation
10.5.6 High-temperature test — Storage
10.5.7 Low-temperature test — Operation
10.5.8 Low-temperature test — Storage
10.6 Vibration tests and requirements
10.7 Shock testing
10.8 Drop test
10.9 Resistance to UV
10.10 Electromagnetic compatibility (EMC)
10.10.1 Electromagnetic interference tests
10.10.2 EMC performance criteria
10.10.3 Immunity to conducted low-frequency interference
10.10.4 Immunity to conducted radio-frequency interference
10.10.5 Immunity to radiated radio-frequency fields
10.10.6 Immunity to fast, low-energy transients (bursts)
10.10.7 Immunity to slow, high-energy transients (surges)
10.10.8 Immunity to electrostatic discharge (ESD)
10.10.9 Immunity to power supply variation
10.10.10 Radiated emissions
10.10.11 Conducted emissions
10.11 Compass safe distance
10.12 Insulation resistance
11 Labelling
12 Instructions to be included in the owner's manual
Bibliography
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Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 General requirements
5 Control head
6 Command station transfer
7 Portable helm station controls
8 Dynamic-positioning system (DPS)
9 Failure modes and responses
9.1 Loss of operation
9.2 Loss of computer command logic
10 Test requirements
10.1 General test requirements
10.2 Steering
10.3 Control lever(s) for separate or combined shift and throttle functions
10.4 Joystick
10.5 Environmental-test requirements
10.5.1 General
10.5.2 Salt mist tests
10.5.3 Damp heat — Cyclic
10.5.4 Damp heat — Steady state
10.5.5 High-temperature test — Operation
10.5.6 High-temperature test — Storage
10.5.7 Low-temperature test — Operation
10.5.8 Low-temperature test — Storage
10.6 Vibration tests and requirements
10.7 Shock testing
10.8 Drop test
10.9 Resistance to UV
10.10 Electromagnetic compatibility (EMC)
10.10.1 Electromagnetic interference tests
10.10.2 EMC performance criteria
10.10.3 Immunity to conducted low-frequency interference
10.10.4 Immunity to conducted radio-frequency interference
10.10.5 Immunity to radiated radio-frequency fields
10.10.6 Immunity to fast, low-energy transients (bursts)
10.10.7 Immunity to slow, high-energy transients (surges)
10.10.8 Immunity to electrostatic discharge (ESD)
10.10.9 Immunity to power supply variation
10.10.10 Radiated emissions
10.10.11 Conducted emissions
10.11 Compass safe distance
10.12 Insulation resistance
11 Labelling
12 Instructions to be included in the owner's manual
Bibliography