ISO 20673-2022 PDF

Full title and description

St ISO 20673-2022 — Ships and marine technology — Electric rudder angle indicators. This international standard specifies construction, performance requirements, methods of testing and required test results for electric rudder angle indicators intended to meet SOLAS requirements for rudder position indication on ships.

Abstract

ISO 20673:2022 sets out the design, performance and test requirements for electric rudder angle indicators required to comply with Clause 2.5.4, Regulation 19, Chapter V of SOLAS 1974 (as amended). The document also notes its relationship with IEC 60945 and IMO Resolution A.694(17), and states that where requirements differ from IEC 60945 the requirements of ISO 20673 take precedence.

General information

• Status: Published.
• Publication date: 28 February 2022 (Edition 2 published in February 2022).
• Publisher: International Organization for Standardization (ISO).
• ICS / categories: 47.020.70 (Navigational and control equipment for ships).
• Edition / version: Edition 2 (2022).
• Number of pages: 5 pages.

Scope

This standard applies to electric rudder angle indicators used on ships to indicate rudder position, specifying required construction details, performance characteristics, testing methods and pass/fail criteria needed to demonstrate compliance with SOLAS Regulation V/19 (Clause 2.5.4). It is intended to ensure reliable rudder position indication for safe navigation and to align with related IMO and IEC requirements; where differences with IEC 60945 exist, ISO 20673:2022 takes precedence.

Key topics and requirements

• Construction and materials requirements for electric rudder angle indicators.
• Performance requirements including accuracy, response and reliability under expected shipboard conditions.
• Required test methods and acceptance criteria to verify conformity (electrical, environmental and functional tests).
• Conformance to SOLAS Regulation V/19 (Clause 2.5.4) for rudder position indication on SOLAS ships.
• Relationship to IEC 60945 and IMO Resolution A.694(17); ISO requirements prevail where they differ.

Typical use and users

Manufacturers of shipboard navigation and control equipment, shipbuilders, maritime systems integrators, classification societies, marine surveyors and flag-state authorities use this standard to design, test, approve and verify electric rudder angle indicators for compliance with SOLAS and relevant classification rules. It is used during product development, type approval testing and vessel outfitting.

Related standards

Key related documents referenced by or associated with ISO 20673:2022 include IEC 60945 (marine navigation and radiocommunication equipment — general requirements — methods of testing and required test results) and IMO Resolution A.694(17); ISO 20673:2022 explicitly addresses precedence where requirements differ. The previous edition ISO 20673:2007 has been withdrawn and replaced by this 2022 edition.

Keywords

rudder angle indicator, electric rudder indicator, rudder position, SOLAS V/19, marine navigation equipment, IEC 60945, IMO A.694(17), shipboard instrumentation, ISO 20673:2022.

FAQ

Q: What is this standard?

A: ISO 20673:2022 is an international standard that defines construction, performance and test requirements for electric rudder angle indicators used on ships.

Q: What does it cover?

A: It covers design and construction characteristics, performance criteria, required test methods and pass/fail criteria to ensure rudder angle indicators meet SOLAS Regulation V/19 Clause 2.5.4 and related maritime equipment requirements.

Q: Who typically uses it?

A: Equipment manufacturers, shipbuilders, classification societies, marine surveyors, flag administrations and maritime system integrators use the standard for product development, type approval and compliance verification.

Q: Is it current or superseded?

A: ISO 20673:2022 is the current edition (Edition 2, published February 2022) and supersedes ISO 20673:2007 which has been withdrawn.

Q: Is it part of a series?

A: It is maintained by ISO/TC 8/SC 6 (Ships and marine technology — Navigation and ship operations) and sits within the ICS category for navigational and control equipment (47.020.70); it relates to other marine equipment standards such as IEC 60945 and IMO instruments and resolutions.

Q: What are the key keywords?

A: Rudder angle indicator; electric rudder indicator; rudder position; SOLAS; marine navigation equipment; IEC 60945; IMO A.694(17).