Transport Publication TP 3668 E
- Table of Contents
- Introduction
- Certification
- Inspection
- General Requirements
- Standards For Magnetic Compasses
- Standards For GYRO-Compasses
- Standards For Automatic Pilots
- Standards For Radar
- Standards For Automatic Radar Plotting Aids (ARPA)
- Standards For Radio
- Standards For Electronic Position Fixing Equipment
- Standards For An Echo-sounder
- Standards For Devices to Indicate Speed and Distance
- Standards For Rate-of-Turn Indictors
- Information to be Included In Maneuvering Booklets
- Marine Safety Publications
- Marine Safety Home Page
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4.1 INTRODUCTION
4.1.1 Equipment required by the Navigating Appliances and Equipment Regulations, shall comply with the following general requirements in accordance with section 5 of the Regulations.
4.1.2 Other standards are included in this document where there is a requirement in other regulations or IMO resolutions.. ( e.g. The requirement in the Ships’ Deck Watch Regulations to carry an Automatic Pilot).
4.2 OPERATION
4.2.1 All controls shall be of such size and location as to permit normal adjustments to be easily performed and shall be easy to identify.
4.2.2 Fully adequate illumination shall be provided to enable identification of controls and facilitate reading of displays at all times. Facilities for dimming shall be provided.
4.3 POWER SUPPLY
4.3.1 Equipment shall continue to operate in accordance-with the requirements of the relevant standards in the presence of variations of the power supply normally to be expected in a vessel.
4.3.2 Means shall be incorporated for the protection of equipment from excessive currents and voltages, transients and accidental reversal of the power supply polarity.
4.3.3 If provision is made for operating equipment from more than a one source of electrical energy, arrangements for rapidly changing from one source of supply to the other shall be incorporated.
4.4 DURABILITY AND RESISTANCE TO ENVIRONMENTAL CONDITIONS
4.4.1 Equipment shall be capable of continuous operation under the conditions of sea states, vibration, humidity and change of temperature likely to be experienced in the vessel in which it is installed.
4.5 INTERFERENCE
4.5.1 All reasonable and practicable steps shall be taken to eliminate the causes of, and to suppress, electromagnetic interference between the equipment concerned and other equipment on board.
4.5.2 Mechanical noise from all units shall be so limited as not to prejudice the hearing of sounds on which the safety of the ship might depend.
4.5.3 Each unit of equipment normally to be installed in the vicinity of a standard or a steering magnetic compass shall be clearly marked with the minimum safe distances at which it may be mounted from such compasses.
4.6 MISCELLANEOUS
4.6.1 Equipment shall be so constructed and installed that it is readily accessible for inspection and maintenance purposes. As far as practicable, access to dangerous voltages within equipment shall be prevented.
4.6.2 Information shall be provided to enable competent members of a ship's staff to operate and maintain equipment efficiently.
4.6.3 Equipment shall be provided with an external indication of manufacture, type and/or number.
4.6.4 Equipment shall be installed in such a manner that it is capable of meeting its recommended performance standards.
4.7 INTERNATIONAL STANDARD
4.7.1 The International Maritime Orqanization Resolution "A.281(VIII) Recommendation on General Requirements for Electronic Navigational Aids" is the adopted standard.
4.8 EFFECTIVE DATE
4.8.1 This Standard comes into force on 1 September 1985.
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