6.1 Familiarity
Clasification Society 2024 - Version 9.40
Statutory Documents - IMO Publications and Documents - Circulars - Maritime Safety Committee - MSC/Circular.834 – Guidelines for Engine-Room Layout, Design and Arrangement – (Adopted on 9 January 1998) - Annex - Guidelines for Engine-Room Layout, Design and Arrangement - 6 Recommended Procedures - 6.1 Familiarity

6.1 Familiarity

  6.1.1 Pipes should be colour-coded for identification of content and direction of flow. The colour-coding should also differentiate between grades of fuel. The colour-coding and direction of flow should be in accordance with recognized international standards such as ISO standard 14726-1, Ships and marine technology - Piping systems - Identification colours for content.

  6.1.2 Electrical cables should be labelled with an identifying code using a durable tag which should be affixed to the cables in accordance with the following convention:

  • .1 Tags should be affixed at the exit from the main switchboard, at the entrance and exit of intermediate panel boards, at the entrance and exit of junction boxes, at the entrance and exit of controllers and at the connection to the load.

  • .2 Circuit breakers in switchboards and panel boards should be identified by the written name of the circuit and the circuit code.

  • .3 Tags for electrical cables should correspond with the relevant ship's drawings. Any modifications of the ship's cabling should be reflected in revisions to the drawings.

  6.1.3 The engine-room instrumentation and alarms required by the SOLAS Convention and other IMO instruments should be designed and installed in accordance with the requirements of resolution A.686(17) - Code on Alarms and Indicators, as amended. Classification Society requirements should also be taken into consideration.

  6.1.4 Valves located below the floor plates should be fitted with indicators that are independent of the valve controls and are discernible to crew members looking at the valve, to show whether the valve is in the open or closed position. In cases where the possibility of direct manual operation is required in addition to the remote control, means of observing the valve position and the valve location are to be provided.

  6.1.5 Items of machinery should be clearly identified to facilitate familiarization with their location and function.


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