Marine Machinery Regulations (SOR/90-264)
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Regulations are current to 2024-10-30 and last amended on 2023-12-20. Previous Versions
SCHEDULE XVI(Section 4)
General Design Specifications
| Item | Requirements |
|---|---|
| 1 | For ships operating in extremely cold conditions, the design of all essential liquid or steam systems prone to frost damage or operational impairment shall take into account those operational conditions and the low-temperature characteristics of CO2 and any other gases to be used in a ship system. |
| 2 | Water piping systems intended for use in areas exposed to freezing conditions shall, as far as practicable, be separate from water systems intended for use in internal spaces of ships, with drainage facilities being fitted in suitable and easily accessible locations. |
| 3 | Materials subjected to stress at high or low temperatures shall be resistant to failure due to such temperatures. |
| 4 | Means shall be provided to bring into operation propulsion and ship service machinery from a dead ship condition without external aid. |
| 5 | Machinery shall be protected against overspeeding and excessive vibration. |
| 6 | Ship propulsion systems shall have sufficient power, and arrangements shall be provided to enable the ship to be manoeuvered both ahead and astern and controlled at sea, having regard to the voyages the ship is to make. |
| 7 | Normal operation of the propulsion machinery shall be sustainable or restorable where one of the essential auxiliaries becomes inoperative, but a partial reduction in propulsion capability from normal operation is acceptable. |
| 8 | For single essential propulsion components, means shall be provided to assure reliability, especially in the case of unconventional arrangements. |
| 9 | All machinery shall be designed to operate when the ship is upright and when listing at any angle up to and including 15° either way under static conditions and 22.5° either way under rolling conditions and simultaneously inclined 7.5° by the bow or stern under pitching conditions. |
| 10 | Effective guards shall be provided for protection against machinery that moves, is hot or is otherwise hazardous. |
| 11 | Slip-resisting gratings, handrails and ladders shall be fitted to allow access to machinery for operational and maintenance purposes with particular attention being given to spaces where fluids may leak, such as steering gear compartments. |
| 12 | Sufficient means shall be provided, including lighting, to inspect, maintain and clean machinery parts. |
| 13 | Machinery spaces of category A shall be adequately ventilated so that when boilers or other machinery are operating at full power in all weather conditions, an adequate supply of air to the spaces is maintained for the safety and comfort of personnel and the operation of the machinery. |
| 14 | Other machinery spaces shall be adequately ventilated. |
| 15 | Where applicable, at least two independent means of communication shall be provided for communicating orders from the bridge to the location in the machinery space, or in the control room, from which the engines are normally controlled, and one of the means of communication shall be an engine-room telegraph that provides visual indication of the orders and responses both in the machinery space and on the bridge. |
| 16 | Appropriate means of communication shall be provided to any locations other than those referred to in item 15 from which the engines may be controlled. |
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