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RINA S.p.A. (Registro Italiano Navale) - Ortona Office - Italy (ID: 24919)
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RINA S.p.A. Via Corsica, 12 - 16128 Genova - Italy Tel. +39 01053851 - Fax: +39 0105351000 www.rina.org Enclosure to Rule Variation FTC/2004/01 dated 10 May 2004 Rules for the Classification of Ships Amendments to Part C Machinery, Systems and Fire Protection Note: The date of entry into force of each item containing new or amended requirements is shown in brackets after the number of the item concerned. (Part C) i Amendments to PART C LIST OF MODIFIED OR NEW ITEMS CHAPTER 1 Section 1: Section 2: ; Table 1 Section 3: Table 10; ; Figure 3 (editorial) Section 4: Section 10: ; ; ; ; ; ; (editorial); ; ; ; (deleted); (deleted); (deleted); ; Section 15: (editorial); (editorial); ; CHAPTER 2 Section 1: Table 1 Section 2: (NEW); (NEW); (NEW); Table 1; Table 6; (NEW) Section 3: (editorial); ; (NEW) Section 5: Section 6: Section 7: Section 9: (NEW) Section 13: Table 1; Section 14: Section 15: CHAPTER 4 Section 1: (deleted) Section 7: Section 11: Table 3 (Part C) 1 Amendments to PART C The following requirements either supersede those indicated in the Rules with the same number or are new (in this case NEW appears in brackets). The additions are underlined and deletions stricken through. CHAPTER 1 MACHINERY Ch 1, Sec 1, Modify item as follows: 3.7 Hot surfaces and fire protection 3.7.1 (1/7/2004) Surfaces, having temperature exceeding 60 C, with which the crew are likely to come into contact during operation are to be suitably protected or insulated. Surfaces of machinery with temperatures above 220 C, e.g. steam, thermal oil and exhaust gas lines, silencers, exhaust gas boilers and turbochargers, are to be effectively insulated with non-combustible material or equivalently protected to prevent the ignition of combustible materials coming into contact with them. Where the insulation used for this purpose is oil absorbent or may permit the penetration of oil, the insulation is to be encased in steel sheathing or equivalent material. The insulation of hot surfaces is to be of a type and so supported that it does not crack or deteriorate when subject to vibration. Fire protection, detection and extinction is to comply with the requirements of Chapter 4. Ch 1, Sec 2, Modify item as follows: 2.8 Control and monitoring OMISSIS 2.8.7 Use of electronic governors (1/7/2004) a) Type approval Electronic governors and their actuators are to be type approved by the Society, according to Ch 3, Sec 6. b) Electronic governors for main propulsion engines If an electronic governor is fitted to ensure continuous speed control or resumption of control after a fault, an additional separate governor is to be provided unless the engine has a manually operated fuel admission control system suitable for its control. A fault in the governor system is not to lead to sudden major changes in propulsion power or direction of propeller rotation. Alarms are to be fitted to indicate faults in the governor system. The acceptance of electronic governors not in compliance with the above requirements will be considered by. the Society on a case by case basis, when fitted on ships with two or more main propulsion engines. c) Electronic governors for auxiliary engines driving electric generators In the event of a fault in the electronic governor system the fuel admission is to be set to zero . Alarms are to be fitted to indicate faults in the governor system. The acceptance of electronic governors fitted on engines driving emergency generators will be considered by the Society on a case by case basis. OMISSIS (Part C) 2 Ch 1, Sec 2, Table 1 Modify Table 1 adding a new Note (7) as follows: Table 1: Documents to be submitted (1/7/2004) No I/A (1) Document Document details 1 I Engine particulars as per the Society form "Particulars of diesel engines" or equivalent form - 2 I Engine transverse cross-section Max inclination angles, oil surface lines, oil suction strum position 3 I Engine longitudinal section Max inclination angles, oil surface lines, oil suction strum position 4 I / A Bedplate or crankcase, cast or welded. For welded bedplates or cranks, welding details and instructions Design of welded joints, electrodes used, welding sequence, heat treatment, nondestructive examinations 5 A Thrust bearing assembly (2) - 6 I / A Thrust bearing bedplate, cast or welded. For welded bedplates or cranks, welding details and instructions (2) Design of welded joints, electrodes used, welding sequence, heat treatment, nondestructive examinations 7 I / A Frame/column, cast or welded with welding details and instructions (3) Design of welded joints, electrodes used, welding sequence, heat treatment, nondestructive examinations 8 I Tie rod - 9 I Cylinder cover, assembly - 10 I Cylinder jacket or engine block (3) (4) - 11 I Cylinder liner (4) - 12 A Crankshaft, details, for each cylinder number - 13 A Crankshaft, assembly, for each cylinder number - 14 A Thrust shaft or intermediate shaft (if integral with engine) - 15 A Coupling bolts - 16 A Counterweights (if not integral with crankshaft), with associated fastening bolts Bolt fastening instructions 17 I Connecting rod - 18 I Connecting rod, assembly (4) Bolt fastening instructions 19 I Crosshead, assembly (4) - 20 I Piston rod, assembly (4) - 21 I Piston, assembly - 22 I Camshaft drive, assembly - 23 A Material specifications of main parts of engine, with detailed information on: non-destructive tests, and pressure tests Required for items 4, 7, 8, 9, 10, 11, 12, 15, 18, 21, including acceptable defects and repair procedures Required for items 4, 7, 9, 10, 11, 21 and for injection pumps and exhaust manifold 24 A Arrangement of foundation bolts (for main engines only) - 25 A Schematic layout or other equivalent documents for starting air system on the engine (5) - 26 A Schematic layout or other equivalent documents for fuel oil system on the engine (5) - 27 A Schematic layout or other equivalent documents for lubricating oil system on the engine (5) - 28 A Schematic layout or other equivalent documents for cooling water system on the engine (5) - (Part C) 3 29 A Schematic diagram of engine control and safety system on the engine (5) (see also ) List, specification and layout of sensors, automatic controls and other control and safety devices 30 I Shielding and insulation of exhaust pipes, assembly - 31 A Shielding of high pressure fuel pipes, assembly (see also ) Recovery and leak detection devices 32 A Crankcase explosion relief valves (6) (see also ) Volume of crankcase and other spaces (camshaft drive, scavenge, etc.) 33 I Operation and service manuals (7) - (1) A = to be submitted for approval, in four copies I = to be submitted for information, in duplicate. Where two indications I / A are given, the first refers to cast design and the second to welded design. (2) To be submitted only if the thrust bearing is not integral with the engine and not integrated in the engine bedplate. (3) Only for one cylinder. (4) To be submitted only if sufficient details are not shown on the engine transverse and longitudinal crosssections. (5) Dimensions and materials of pipes, capacity and head of pumps and compressors and any additional functional information are to be included. The layout of the entire system is also required, if this is part of the goods to be supplied by the engine Manufacturer. (6) Required only for engines with cylinder bore of 200 mm and above or crankcase gross volume of 0,6 m3 and above. (7) Operation and service manuals are to contain maintenance requirements (servicing and repair) including details of any special tools and gauges that are to be used with their fitting/settings together with any test requirements on completion of maintenance. Where the operation and service manuals identify special tools and gauges for maintenance purposes refer to Sec 10, . Ch 1, Sec 3, Table 10 Modify Table 10 adding a new row as follows: Table 10: Efficiency of unpierced shells (1/7/2004) Case e Seamless shells 1 Shells of class 1 vessels (1) 1 Shells of class 2 vessels (with partial radiographic examination of butt-joints) 0,85 Shells of class 2 vessels (without radiographic examination of butt-joints) 0,75 Shells of class 3 vessels 0,6 (1) In special cases the Society reserves the right to take a factor e 3 MW, dock and sea trials. (1) A: to be submitted for approval I: to be submitted for information (2) for high voltage installations (3) for electric propulsion installations. (Part C) 15 Ch 2, Sec 2, Modify item as follows: 1.2 Ambient air temperatures 1.2.1 For ships classed for unrestricted navigation, the ambient air temperature ranges shown in Tab 1 are applicable in relation to the various locations of installation. 1.2.2 (1/7/2004) Where electrical equipment is installed within environmentally controlled spaces other than Machinery Spaces the ambient temperature for which the equipment is to be suitable may be reduced from 45 and maintained at a value not less than 35 provided: the equipment is not for use for emergency services and is located outside of the machinery space(s). temperature control is achieved by at least two cooling units so arranged that in the event of loss of one cooling unit, for any reason, the remaining unit(s)is capable of satisfactorily maintaining the design temperature. the equipment is able to be initially set to work safety within a 45 ambient temperature until such a time that the lesser ambient temperature may be achieved; the cooling equipment is to be rated for a 45 ambient temperature. audible and visual alarms are provided, at a continually manned control station, to indicate any malfunction of the cooling units. 1.2.3 (1/7/2004) In accepting a lesser ambient temperature than 45 it is to be ensured that electrical cables for their entire length are adequately rated for the maximum ambient temperature to which they are exposed along their length. 1.2.4 (1/7/2004) The equipment used for cooling and maintaining the lesser ambient temperature is to be classified as a secondary essential service. 1.2.5 1.2.2 (1/7/2004) For ships classed for service in specific zones, the Society may accept different ranges for the ambient air temperature (e.g. for ships operating outside the tropical belt, the maximum ambient air temperature may be assumed as equal to + 40 C instead of + 45 C). Table 1: Ambient air temperature (1/7/2004) Location Temperature range C Enclosed spaces + 5 + 45 Inside consoles or fitted on combustion engines and similar + 5 + 55 Air conditioned areas + 5 + 40 Exposed decks - 25 + 45 Ch 2, Sec 2, Table 6 Modify the Table 6 as follows: Table 6 : Voltage and frequency variations of power supply in a.c. (1/7/2004) Variations Parameter Continuous Transient Voltage + 6% - 10% 20% (recovery time: 1,5 s) Frequency 5% 10% (recovery time: 5 s) Note 1: For alternating current components supplied by emergency generating sets, different variations may be considered. (Part C) 16 Ch 2, Sec 2, (NEW) Add a new item as follows: 2.3 D.c. distribution systems OMISSIS 2.3.3 (1/7/2004) Any special system, e.g. electronic circuits, whose function cannot operate satisfactorily within the limits shown in Tables 6 and 7 are not to be supplied directly from the system but by alternative means, e.g. through stabilised supply. Ch 2, Sec 3, (editorial, as the requirements for the nominal cross-sectional area are given both in and in Sec 8, ) 9.10 Minimum nominal cross-sectional area of conductors 9.10.1 In general the minimum allowable conductor cross-sectional areas are those given in Tab 13. 9.10.2 The nominal cross-sectional area of the neutral conductor in three-phase distribution systems is to be equal to at least 50% of the cross-sectional area of the phases, unless the latter is less than or equal to 16 mm2. In such case the cross-sectional area of the neutral conductor is to be equal to that of the phase. 9.10.3 For the nominal cross-sectional area of: earthing conductors, see Sec 12, earthing connections for distribution systems, see Sec 12, neutral connections for three-phase systems, see Sec 8, . Ch 2, Sec 3, 10.3 Electrical installations in battery rooms 10.3.1 Only intrinsically safe apparatus and certified safe type lighting fittings may be installed in compartments assigned solely to large vented storage batteries; see Sec 11, . The associated switches are to be installed outside such spaces. Electric ventilator motors are to be outside ventilation ducts and, if within 3 m of the exhaust end of the duct, they are to be of an explosion-proof safe type. The impeller of the fan is to be of the non-sparking type. Overcurrent protective devices are to be installed as close as possible to, but outside of, battery rooms. Electrical cables other than those pertaining to the equipment arranged in battery rooms are not permitted. 10.3.2 Electrical equipment for use in battery rooms is to have minimum explosion group IIC and temperature class T1. 10.3.3 10.3.2 Standard marine electrical equipment may be installed in compartments assigned solely to valve regulated sealed storage batteries. 10.3.3 (1/7/2004) Where vented (see note 1) type batteries replace valve-regulated sealed (see Note 2) types, requirements of Sec 11 are to be complied with. Note 1: A vented battery is one in which the cells have a cover provided with an opening through which products of electrolysis and evaporation are allowed to escape freely from the cells to atmosphere. Note 2: A valve-regulated battery is one in which cells are closed but have an arrangement (valve)which allows the escape of gas if the internal pressure exceeds a predetermined value. (Part C) 17 Ch 2, Sec 3, (NEW) Add a new item as follows: 11 Recording of the Type, Location and Maintenance Cycle of Batteries 11.2 Battery schedule 11.1.1 (1/7/2004) Where batteries are fitted for use for essential and emergency services a schedule of such batteries is to be compiled and maintained. The schedule, required in Sec 1, Tab 1 is to include at least the following information regarding the battery(ies): Type and manufacturer type designation. Voltage and ampere-hour rating. Location. Equipment and/or system(s)served. Maintenance/replacement cycle dates. Date(s)of last maintenance and/or replacement. For replacement batteries in storage, the date of manufacture and shelf life. Note 1: Shelf life is the duration of storage under specified conditions at the end of which a battery retains the ability to give a specified performance. Ch 2, Sec 5, Add a new Note 1 to item as follows: 2 Testing 2.1 General OMISSIS 2.1.5 (1/7/2004) The tests and, if appropriate, manufacture of transformers of 100 kVA and over (60 kVA when single phase) intended for essential services are to be attended by a Surveyor of the Society. Transformers of 5 kVA up to the limit specified above are approved on a case by case basis, at the discretion of the Society, subject to the submission of adequate documentation and routine tests. Note 1: An alternative inspection scheme may be agreed by the Society with the Manufacturer whereby the attendance of the Surveyor will not be required as indicated above. Ch 2, Sec 6, Add a new Note 1 to item as follows: 2 Testing 2.1 General OMISSIS 2.1.2 (1/7/2004) The manufacturer is to issue a test report giving information on the construction, type, serial number and all technical data relevant to the convertor, as well as the results of the tests required. Note 1: An alternative inspection scheme may be agreed by the Society with the Manufacturer whereby the attendance of the Surveyor will not be required as indicated above. (Part C) 18 Ch 2, Sec 7, Add a new Note 1 to item as follows: 2.2 Tests on chargers OMISSIS 2.2.3 (1/7/2004) The tests of battery chargers of 50 kVA and over intended for essential services are to be attended by a Surveyor of the Society. Note 1: An alternative inspection scheme may be agreed by the Society with the Manufacturer whereby the attendance of the Surveyor will not be required as indicated above. Ch 2, Sec 9, (NEW) (already issued with Rule Variation ELE/2003/01 in force as at 29 August 2003) Add a new item as follows: 2.2 Routine tests OMISSIS 2.2.6 Power cables for electrical propulsion systems, other than internal wiring in switchboards, are to be type approved and tested for acceptance in the presence of the Surveyor. Acceptance tests have to include at least: a) high voltage test b) insulation resistance measurement. Ch 2, Sec 13, Table 1 Modify Table 1 adding a row as follows: Table 1: Minimum clearances (1/7/2004) Rated voltage, in kV Minimum clearance, in mm 3 - 3,3 55 6 - 6,6 90 10 - 11 120 15 160 Ch 2, Sec 13, Replace the existing text of item as follows: 6.3 Auxiliary systems 6.3.1 Source of supply (1/1/2002) If electrical energy and/or physical energy is required for the operation of circuit breakers and switches, a store supply of such energy is to be provided for at least two operations of all the components. However, the tripping due to overload or short-circuit, and under-voltage is to be independent of any stored electrical energy sources. This does not preclude shunt tripping provided that alarms are activated upon lack of continuity in the release circuits and power supply failures. 6.3.2 Number of supply sources (1/7/2004) At least two independent sources of supply for auxiliary circuits of each independent section of the system (see ) is to be provided. Where necessary one source of supply is to be from the emergency source of electrical power for the start up from dead ship condition. (Part C) 19 When external source of supply is necessary for auxiliary circuits, at least two external sources of supply are to be provided and so arranged that a failure or loss of one source will not cause the loss of more than one generator set and/or set of essential services. Where necessary one source of supply is to be from the emergency source of electrical power for the start up from dead ship condition. Ch 2, Sec 14, Modify item as follows: 4.4 Alarm system 4.4.1 An alarm system is to be provided, in accordance with the requirements of Chapter 3. The system is to give an indication at the control positions when the parameters specified in assume abnormal values or any event occurs which can affect the electric propulsion. 4.4.2 Where an alarm system is provided for other essential equipment or installations, the alarms in may be connected to such system. 4.4.3 (1/7/2004) Critical alarms for propulsion may be grouped, but, are to be indicated to the bridge separately for other alarms. OMISSIS Ch 2, Sec 15, Modify item as follows: 2 Type approved components 2.1 2.1.1 (1/7/2004) The following components are to be type tested or type approved or in accordance with : electrical cables (wiring internal to equipment excluded) transformers electric motors electrical convertors for primary essential services switching devices (circuit-breakers, contactors, disconnectors, etc.) and overcurrent protective devices (fuses excluded) sensors, alarm panels, electronic protective devices, automatic and remote control equipment, actuators, safety devices for installations intended for essential services (steering, controllable pitch propellers, propulsion machinery, etc.), electronic speed regulators for main or auxiliary engines computers used for tasks essential to safety. 2.1.2 Case by case approval based on submission of adequate documentation and execution of tests may also be granted at the discretion of the Society. (Part C) 20 CHAPTER 4 FIRE PROTECTION, DETECTION AND EXTINCTION Ch 4, Sec 1, (deleted) Delete the existing item as follows: 3.4 B class divisions OMISSIS 3.4.2 (1/7/2002) In general, in order to be defined as B class, a metal division is to have plating thickness not less than 3 mm when constructed of steel, and not less than 4 mm when constructed of light alloy, and is to have suitable stiffeners or beams. Reduced thickness may be considered by the Society on a case by case basis. Ch 4, Sec 7, Modify item as follows: 4.7 Fixed local application fire-fighting systems OMISSIS 4.7.4 (1/7/2004) Activation of any local application system shall give a visual and distinct audible alarm in the protected space and at continuously manned stations. The alarm shall indicate the specific system activated. The system alarm requirements described within this paragraph are in addition to, and not a substitute for, the detection and fire alarm system required elsewhere in this chapter. Grouped visual and audible alarms, as well as indication of the activated zone, should be provided in each protected space, in the engine control room and in the wheelhouse.. Ch 4, Sec 11, Table 3 Modify Table 3 as indicated in the following page: (Part C) 21 Attached to BARI. RINA S.p.A. (Registro Italiano Navale) - Ortona Office - Italy