ISO 16147-2020 pdf free download – Small craft — Inboard diesel engines — Engine-mounted fuel, oil and electrical components.
4General
4.1 All material and components shall be suitable for intended use and capable of operation within anambient temperature range of-10 °C to +80 °C without failure or leakage, and be capable of being storedwithout operation within an ambient temperature range of -30 °C to +80 °C without failure or leakage.
4.2 Engine-mounted fuel and electrical components and accessories that require frequent inspectionand/or servicing shall be accessible.
4.3 Exposed operating or hot engine-mounted components that could cause personal injury shall beeffectively shielded.
4.4Installation of engine-mounted diesel fuel and electrical components shall take account of the riskand spread of fire. Special attention shall be paid to hot areas of engines.Routing of electrical wiring, inparticular, shall be located away from heat sources and hot areas.
5Engine fuel and oil system and components
5.1General
5.1.1 Engine-mounted fuel and lubricating systems shall be leak free, such that there is no drippingor wetting of surface areas at the interface of connecting components and pipe joints due to mistingatomization, or liquid from fuel or lubrication under normal operation.
5.1.2 All materials used in fuel systems shall be resistant to deterioration by the diesel fuel, includingbio diesel that contains FAME and to other liquids or compounds with which they may come into contactunder normal operating conditions,e.g. grease, lubricating oil, bilge solvents and sea water.
5.1.3 All sealing material, such as gaskets, o-rings, joint-rings, etc. shall be of the non-wicking, i.e.non-fuel-absorbent type.
5.1.4 Fuel and oil filters, flexible hoses including fittings and terminations shall, individually or asinstalled, withstand a 2,5 min fire testas describedin ISo 10088:2013,AnnexB, orISO7840:2013,Annex A.lf the component is being tested as installed on an engine, the pan shall be large enough to extendbeyond the vertical projection of the perimeter of the engine.
NOTE A permanently installed shielding of fuel return hoses, including their fittings and terminations, isaccepted as protection against fire.
5.2 High-pressure fuel pipes
5.2.1 High-pressure fuel pipes shall be suitable for the pressure and pressure impulses in the system.
5.2.2 High-pressure fuel pipes shall be secured to prevent vibrations leading to pipe fracture.
5.3 Low-pressure fuel lines
5.3.1 Flexible hoses shall meet the requirements of ISo 7840:2013 and be secured by a metal hoseclamp or permanently installed end fittings, such as a swaged sleeve, threaded insert or connections withcompression ring sealings.
5.3.2Hose connections having a nominal diameter of more than 25 mm shall have two hose clamps.The spud shall be at least 35 mm long to provide space for the clamps.
5.3.3 All low-pressure fuel lines shall be secured into position so as to prevent damage due to excessivevibration leading to pipe fracture.All flexible hoses shall be located away from non-insulated componentswith a surface temperature above 200 C, but remain accessible for inspection and maintenance.
5.4 Fuel and lubrication oil filters
Fuel and lubricating oil filters shall
— be independently supported to avoid stress on pipe connections,
— be readily accessible, and
— not be mounted above turbochargers or uncooled exhaust gas manifolds.
6 Electrical systems and components
6.1 General
6.1.1 d.c. installations shall meet the requirements of ISO 13297:2020.
6.1.2 a.c. installations shall meet the requirements of IEC 60092-507:2014 or ISO 13297:2020.
6.1.3 Electronic shift and throttle components if engine mounted and part of engine delivery from manufacturer shall meet the requirements of ISO 25197:2020.
6.2 Cranking motors
Earth-return cranking motors shall be earthed (d.c. negative ground/earth) to the earth return system of the engine.ISO 16147 pdf download.