Section 12 Requirements for small craft which are not required to comply with the HSC Code
Clasification Society 2024 - Version 9.40
Clasifications Register Rules and Regulations - Rules and Regulations for the Classification of Special Service Craft, July 2022 - Part 15 Piping Systems and Pressure Plant - Chapter 3 Machinery Piping Systems - Section 12 Requirements for small craft which are not required to comply with the HSC Code

Section 12 Requirements for small craft which are not required to comply with the HSC Code

12.2 Fuel oil system

12.2.1 Where a power driven fuel oil transfer pump is fitted, it is to be capable of being stopped from a position outside the space which will always be accessible in the event of fire occurring in the compartment in which the pump is situated, as well as from the compartment itself.

12.2.2 Where a power driven pump is necessary for transferring fuel oil, a standby pump is to be provided and connected ready for use.

12.2.3 Where a fuel oil booster pump is fitted, a standby pump is to be provided. The standby pump is to be connected ready for immediate use.

12.3 Separate fuel oil tanks

12.3.1 Except for very small tanks separate fuel oil tanks are to be not less than 3 mm in thickness. The seams are to be welded or brazed. Steel tanks are to be protected from corrosion.

12.3.2 Before installation, all tanks are to be tested by a head of water equal to the maximum to which the tanks may be subjected, but not less than 2,5 m above the crown of the tank.

12.3.3 Separate fuel oil tanks are to be securely fixed in position, and located as remote as practicable from exhaust manifolds and exhaust pipes or other hot surfaces and not above any electrical apparatus. Where this cannot be avoided, a drip tray is to be fitted under the tank and extended sufficiently to catch any drips from fittings attached to the tank.

12.3.4 Fuel oil tanks are not to be fitted above or adjacent to oil fired heaters, cooking stoves, equipment using naked flames or electrical equipment unless this is suitably constructed or enclosed.

12.4 Fuel oil filling

12.4.1 The filling pipe is to be of metallic construction and is to be a permanent fixture led from the deck and secured to the tank by an approved connection. A screwed cap and name plate inscribed 'Fuel Oil' is to be provided at the filling point.

12.4.2 Flexible hoses are not permitted as filling pipes. In composite craft short lengths may be employed at the deck connection to accommodate any movement between the tank and the deck fitting.

12.5 Fuel oil supply

12.5.1 Provision is to be made for efficient filtration of the fuel oil supply to the engine.

12.6 Fuel oil valves and cocks

12.6.1 Outlet valves or cocks are to be fitted to all deep tanks. The valves are to be fitted directly to the tank plating and are to be capable of being closed locally and from positions which will always be readily accessible in the event of fire.

12.6.2 Valve covers are to be so constructed that they will not become slack when the valves are operated.

12.6.3 Heat sensitive materials are not to be used in the construction of valves and cocks.

12.6.4 Where drain cocks or valves are fitted to fuel oil tanks they are to be of the self-closing type and suitable provision is to be made for collecting the oil discharge.

12.7 Flexible hoses for fuel oil systems

12.7.1 Where necessary, flexible pipes of approved type may be used as short joining lengths to the engine.

12.8 Pipe joints for fuel oil systems

12.8.1 Where flanged joints are used the jointing material is to be impervious to oil. Cone type joints and approved types of compression fittings may be permitted for pipes having a bore not exceeding 40 mm.

12.8.2 Soft solder is not to be used for attaching pipe fittings.

12.9 Engine cooling system

12.9.1 Where sea water is used for the direct cooling of the engine, an efficient strainer which can be cleared from inside the craft is to be fitted between the sea inlet valve and the pump.

12.9.2 Means are to be provided for cleaning the strainer without interruption to the cooling water supply, where necessary.

12.9.3 Means are to be provided for indicating the temperature of the engine cooling media.

12.9.4 Alarms for the engine cooling water system are to be provided in accordance with Pt 10 Prime Movers.

12.9.5 A standby cooling water pump is to be provided. The standby pump is to be connected ready for immediate use.

12.10 Lubricating oil system

12.10.1 Where the lubricating oil for main propelling engines is circulated under pressure, provision is to be made for the efficient filtration of the oil.

12.10.2 Where necessary, flexible pipes of approved type may be used as short joining lengths to the engine.

12.10.3 In general, joints are to be of the flanged type with jointing materials which are impervious to oil. Cone type joints and approved types of compression fittings may be permitted for pipes having a bore not exceeding 40 mm.

12.10.4 Soft solder is not to be used for attaching pipe fittings.

12.10.5 Means are to be provided for indicating the lubricating oil pressure.

12.10.6 Alarms for the lubricating oil systems are to be provided in accordance with Pt 10 Prime Movers.

12.10.7 Where the output of the main engine exceeds 500 kW, a standby lubricating oil pump is to be provided. The standby pump is to be connected ready for immediate use.

12.11 Multi-engined craft

12.11.1 This Section is applicable to craft that have multi-engine installations for propulsion purposes.

12.11.2 Where each main engine has its own fuel oil booster pump, lubricating oil and cooling water pump and the craft can navigate and manoeuvre safely under all conditions of service with one of the main engines out of action, the following are not required:

  1. Standby fuel oil transfer pump stipulated in Pt 15, Ch 3, 12.2 Fuel oil system 12.2.2.

  2. Standby fuel oil booster pump stipulated in Pt 15, Ch 3, 12.2 Fuel oil system 12.2.3.

  3. Standby cooling water pump stipulated in Pt 15, Ch 3, 12.9 Engine cooling system 12.9.5.

  4. Standby lubricating oil pump stipulated in Pt 15, Ch 3, 12.10 Lubricating oil system 12.10.7.

12.12 Craft having restricted services G1 to G2A

12.12.1 If the craft has a service area restriction notation G1 to G2A, the following are not required:

  1. Standby fuel oil transfer pump stipulated in Pt 15, Ch 3, 12.2 Fuel oil system 12.2.2.

  2. Standby fuel oil booster pump stipulated in Pt 15, Ch 3, 12.2 Fuel oil system 12.2.3.

  3. Standby cooling water pump stipulated in Pt 15, Ch 3, 12.9 Engine cooling system 12.9.5.

  4. Standby lubricating oil pump stipulated in Pt 15, Ch 3, 12.10 Lubricating oil system 12.10.7.

  5. Standby pneumatic air compressor stipulated in Pt 15, Ch 3, 8.2 Compressors and reducing valves/stations 8.2.1.


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