BS ISO 22090-1:2014
$102.76
Ships and marine technology. Transmitting heading devices (THDs) – Gyro-compasses
| Published By | Publication Date | Number of Pages |
| BSI | 2014 | 22 |
This part of ISO 22090 specifies the construction, performance, and testing of gyro-compasses as transmitting heading device required by chapter V, SOLAS 1974 (as amended).
A Transmitting heading device (THD) is an electronic device that provides information about the ship’s true heading.
In addition to the general requirements contained in IMO Resolution A.694(17) to which IEC 60945 is associated and the relevant standard for the sensing part used, the THD equipment shall comply with the following minimum requirements.
Where the IMO performance standards that apply to the sensing part do not specify a geographical operating area that the THD shall operate
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at maximum rate of turn 20 °/s and
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from 70° latitude south to 70° latitude north as minimum.
The THDs complying with the requirements contained in this part of ISO 22090 can be used for heading information as contained in chapter V of the SOLAS Convention.
However, ships within a speed range of 30 kn to 70 kn should comply with the requirements of IMO Resolution A.821(19).
In addition, such THD should meet the dynamic requirements contained in the HSC Code, chapter 13 for the carriage of a suitable device providing heading information.
NOTE 1 Several technologies can be used to detect and transmit heading information. It is illogical to standardize the detection of the heading separately from the transmission of the heading. Therefore, separate parts of this part of ISO 22090 refer to different technologies. The requirements of this part of ISO 22090 only apply to gyroscopic technology. Other technologies are covered in other parts of ISO 22090.
NOTE 2 All requirements that are extracted from the recommendations of IMO Resolution MSC. 116(73) on performance standards for transmitting heading devices are printed in italics.
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 6 | Foreword |
| 7 | Section sec_1 Section sec_2 1 Scope 2 Normative references |
| 8 | Section sec_3 Section sec_3.1 Section sec_3.2 Section sec_3.3 Section sec_3.4 Section sec_3.5 3 Terms and definitions |
| 9 | Section sec_3.6 Section sec_3.7 Section sec_3.8 Section sec_3.9 Section sec_3.10 Section sec_3.11 Section sec_3.12 Section sec_3.13 Section sec_3.14 |
| 10 | Section sec_3.15 Section sec_3.16 Section sec_3.17 Section sec_3.18 Section sec_4 Section sec_4.1 Section sec_4.2 Section sec_4.3 Section sec_4.4 Section sec_4.5 4 Performance requirements 4.1 Functionality 4.2 Continuous operation 4.3 Information 4.4 Fore and aft mark 4.5 Speed error correction |
| 11 | Section sec_4.6 Section sec_4.7 Section sec_4.8 Section sec_4.9 Section sec_4.9.1 Section sec_4.9.2 Section sec_5 Section sec_5.1 Section sec_5.2 4.6 Heading information 4.7 Status indication 4.8 Alert signal 4.9 Interface 5 Accuracy 5.1 General 5.2 Accuracy of transmission data |
| 12 | Section sec_5.3 Section sec_5.3.1 Section sec_5.3.2 Section sec_5.3.2.1 Section sec_5.3.2.2 Section sec_5.4 Section sec_5.4.1 Section sec_5.4.2 Section sec_5.4.3 Section sec_5.4.4 Section sec_6 Section sec_6.1 5.3 Accuracy under static condition 5.4 Accuracy under dynamic condition 6 Type tests 6.1 General |
| 13 | Section sec_6.2 Section sec_6.3 Section sec_6.4 Section sec_6.5 6.2 Settling time test 6.3 Static error (settle point error) test 6.4 Settle point heading repeatability test 6.5 Settling time on a Scorsby table |
| 14 | Section sec_6.6 Section sec_6.7 Section sec_6.8 Section sec_6.8.1 Section sec_6.8.2 Section sec_6.9 6.6 Scorsby test 6.7 Intercardinal motion test 6.8 Follow-up error test 6.9 Speed error correction test |
| 15 | Section sec_6.10 Section sec_6.10.1 Section sec_6.10.2 Section sec_6.10.3 Section sec_6.10.4 Section sec_6.10.4.1 Table tab_1 6.10 General requirement test |
| 16 | Section sec_6.10.4.2 Section sec_6.10.5 Section sec_6.10.6 Section sec_6.11 Section sec_6.12 6.11 Electromagnetic compatibility test 6.12 Interface test |
| 17 | Section sec_7 7 Marking and identification |
| 18 | Annex sec_A Table tab_A.1 Annex A (informative) Equivalent requirements in ISO 22090-1 and IMO Resolution |
| 19 | Reference ref_1 Reference ref_2 Reference ref_3 Reference ref_4 Reference ref_5 Reference ref_6 Bibliography |
