1、 GUIDE FOR BUILDING AND CLASSING YACHTS 2017 NOTICE NO. 1 JULY 2017 The following Rule Changes were approved by the ABS Rules Committee on 30 May 2017 and become EFFECTIVE AS OF 1 JULY 2017. (See http:/www.eagle.org for the consolidated version of the Guide for Building and Classing Yachts 2016, wit
2、h all Notices and Corrigenda incorporated.) Notes - The date in the parentheses means the date that the Rule becomes effective for new construction based on the contract date for construction, unless otherwise noted. (See 1-1-4/3.3 of the ABS Rules for Conditions of Classification (Part 1).) PART 4
3、VESSEL SYSTEMS AND MACHINERY CHAPTER 3 PROPULSION AND MANEUVERING MACHINERY SECTION 3 STEERING GEAR 11 Steering Gear Control System 11.3 General (Add new Subparagraph 4-3-3/11.3.5, as follows:) 11.3.5 System Response Under Failure (1 July 2017) The failures (as listed, but not limited to items in 4-
4、3-3/11.9) likely to cause uncontrolled movements of rudder are to be clearly identified. In the event of detection of such failure, the rudder should stop in the current position. Alternatively, the rudder may be set to return to the midship/neutral position. Failure Mode and Effect Analysis methodo
5、logy may be used to identify the failures. 11.9 Instrumentation and Alarms (Revise Subparagraph 4-3-3/11.9.7, as follows:) 11.9.7 Low Oil Level Alarm (1 July 2017) A visual and audible alarm is to be given on the navigation bridge and engine room control station to indicate a low oil level in any po
6、wer unit reservoir. The operation of this alarm is not to interrupt the power supply circuit. (Add new Subparagraph 4-3-3/11.9.12, as follows:) 11.9.12 Earth Fault (1 July 2017) A visual and audible alarm is to be given on the navigation bridge to indicate an earth fault on AC and DC circuits. ABSGU
7、IDE FOR BUILDING AND CLASSING YACHTS .2017 1 Notice No. 1 July 2017 (Add new Subparagraph 4-3-3/11.9.13, as follows:) 11.9.13 Deviation (1 July 2017) Where arrangements discussed in 4-3-3/11.9.8, 4-3-3/11.9.9, 4-3-3/11.9.10 and 4-3-3/11.9.11 can lead to reduced or erroneous system performance of the
8、 commanded change in rudder angle, a deviation alarm visible and audible at the navigating bridge shall be initiated if the rudders actual position does not reach the set point within acceptable time limits for the closed loop control systems (e.g., follow-up control, computer based systems, and aut
9、opilot). Deviation alarm may be caused by mechanical, hydraulic or electrical failures. See 4-3-3/11.9.8, 4-3-3/11.9.9, 4-3-3/11.9.10 and 4-3-3/11.9.11 for acceptable time limits or angle deviations, as applicable. PART 4 VESSEL SYSTEMS AND MACHINERY CHAPTER 4 PUMPS AND PIPING SYSTEMS SECTION 1 GENE
10、RAL 9 General Installation Details 9.19 Flexible Hoses 9.19.3 Design and Construction (Revise Item 4-4-1/9.19.3(c), as follows:) 9.19.3(c) Fire Resistance (1 July 2017). Flexible hose assemblies constructed of non-metallic materials intended for installation in piping systems for flammable media and
11、 sea water systems where failure may result in flooding are to be of a fire-resistant type*, except in cases where such hoses are installed on open decks having no fire risk, and not used for fuel oil lines. Fire resistance is to be demonstrated by testing to ISO 15540 and ISO 15541. * Note: The ins
12、tallation of a shutoff valve immediately upstream of a sea water hose does not satisfy the requirement for fire resistant type hose. PART 4 VESSEL SYSTEMS AND MACHINERY CHAPTER 6 ELECTRICAL INSTALLATIONS SECTION 2 SHIPBOARD SYSTEMS 7 Distribution System (Revise Paragraph 4-6-2/7.9, as follows:) 7.9
13、Harmonics (1 July 2017) The total harmonic distortion (THD) in the voltage waveform in the distribution systems is not to exceed 8% and any single order harmonics not to exceed 5%. Other higher values may be accepted provided the distribution equipment and consumers are designed to operate at the hi
14、gher limits. This relaxation on THD limits is to be documented (harmonic distortion calculation report) and made available on board as a reference for the Surveyor at each periodical survey.Where higher values of harmonic distortion are expected, any other possible effects, such as additional heat l
15、osses in machines, network resonances, errors in control and monitoring systems are to be considered. See also 4-6-2/9.18 and 4-6-2/9.19. 2 ABSGUIDE FOR BUILDING AND CLASSING YACHTS .2017 Notice No. 1 July 2017 9 Circuit Protection System (Add new Paragraph 4-6-2/9.18, as follows:) 9.18 Harmonic Dis
16、tortion for Yacht Electrical Distribution System including Harmonic Filters (1 July 2017) 9.18.1 Monitoring Where the electrical distribution system on board a ship includes harmonic filters, such ships are to be fitted with facilities to continuously monitor the levels of harmonic distortion experi
17、enced on the main bus bar as well as alert the crew should the level of harmonic distortion exceed the acceptable limits. Where the engine room is provided with automation systems, this reading is to be logged electronically, otherwise it is to be recorded in the engine log book for future inspectio
18、n by the Surveyor. However, harmonic filters installed for single application frequency drives such as pump motors may be excluded from the requirements of this section. 9.18.2 Measurement As a minimum, harmonic distortion levels of main bus bar on board such existing yachts are to be measured annua
19、lly under seagoing conditions as close to the periodical machinery survey as possible so as to give a clear representation of the condition of the entire plant to the Surveyor. Harmonic distortion readings are to be carried out when the greatest amount of distortion is indicated by the measuring equ
20、ipment. An entry showing which equipment was running and/or filters in service is to be recorded in the log so this can be replicated for the next periodical survey. Harmonic distortion levels are also to be measured following any modification to the yachts electrical distribution system or associat
21、ed consumers by suitably trained yachts personnel or from a qualified outside source. Records of all the above measurements are to be made available to the surveyor at each periodical survey in accordance with the ABS Rules for Survey After Construction (Part 7). 9.18.3 Validation of Calculated Harm
22、onic Where the electrical distribution system on board a yacht includes harmonic filters, the system integrator of the distribution system is to show, by calculation, the effect of a failure of a harmonic filter on the level of harmonic distortion experienced. The system integrator of the distributi
23、on system is to provide the yacht owner with guidance documenting permitted modes of operation of the electrical distribution system while maintaining harmonic distortion levels within acceptable limits during normal operation as well as following the failure of any combination of harmonic filters.
24、The calculation results and validity of the guidance provided are to be verified by the Surveyor during sea trials. 9.18.4 Filter Protection Alarm Arrangements are to be provided to alert the crew in the event of activation of the protection of a harmonic filter circuit. A harmonic filter is to be a
25、rranged as a three-phase unit with individual protection of each phase. The activation of the protection arrangement in a single phase is to result in automatic disconnection of the complete filter. Additionally, there is to be installed a current unbalance detection system independent of the overcu
26、rrent protection alerting the crew in case of current unbalance. Consideration is to be given to additional protection for the individual capacitor element as (e.g., relief valve or overpressure disconnector) in order to protect against damage from rupturing. This consideration is to take into accou
27、nt the type of capacitors used. ABSGUIDE FOR BUILDING AND CLASSING YACHTS .2017 3 Notice No. 1 July 2017 (Revise first paragraph of Paragraph 4-6-2/9.19, as follows:) 9.19 Protection of Harmonic Filter Circuits (1 July 2017) Notwithstanding the requirements of 4-6-2/9.18 above, harmonic filters circ
28、uits shall be protected against overload and short-circuit. An alarm is to be initiated in a continuously manned location in the event of an activation of overload or short-circuit protection. (Following text remains unchanged.) PART 4 VESSEL SYSTEMS AND MACHINERY CHAPTER 6 ELECTRICAL INSTALLATIONS
29、SECTION 4 MACHINERY AND EQUIPMENT 13 Cables and Wires 13.1 Cable Construction (Revise first paragraph of Subparagraph 4-6-4/13.1.1, as follows:) 13.1.1 General (1 July 2017) Electric cables are to have conductors, insulation and moisture-resistant jackets, in accordance with IEC Publication 60092-35
30、0, 60092-352, 60092-353, 60092-354, 60092-360, 60092-370, 60092-376, or IEEE Std. 45. Other recognized marine standards of an equivalent or higher safety level, will also be considered. The tests may be carried out by the manufacturer whose certificate of tests will be acceptable and is to be submit
31、ted upon request from ABS. Network cables are to comply with a recognized industry standard. Cables such as flexible cable, fiber-optic cable, etc., used for special purposes may be accepted provided they are manufactured and tested in accordance with recognized standards accepted by ABS. Conductors
32、 are to be of copper and stranded in all sizes. Conductors are not to be less than the following in cross sectional size: (Following text remains unchanged.) 4 ABSGUIDE FOR BUILDING AND CLASSING YACHTS .2017 Notice No. 1 July 2017 PART 4 VESSEL SYSTEMS AND MACHINERY CHAPTER 7 SHIPBOARD AUTOMATIC OR
33、REMOTE CONTROL AND MONITORING SYSTEMS SECTION 4 YACHTS CLASSED WITH ACCU NOTATION (Revise Item C3 in 4-7-4/Table 4A, as follows:) TABLE 4A Monitoring of Propulsion Machinery Slow Speed (Crosshead) Diesel Engines (See also 4-7-4/Table 3) (1 July 2017) Item (11)Alarm (1)Display (16)Automatic Start of
34、Required Standby Vital Auxiliary Pump with Alarm (1)Remarks (12)Turbocharger System C3 Turbocharger speed x Speed (1 July 2017) Alarm Activation for High Speed only required for turbochargers of categories B and C (All other rows and notes remain unchanged.) (Add new Item C3 in 4-7-4/Table 4B, as fo
35、llows:) TABLE 4B Monitoring of Propulsion Machinery Medium/High Speed (Trunk Piston) Diesel Engines (See also 4-7-4/Table 3) (1 July 2017) Item (11)Alarm (1)Display (14)Automatic Start of Required Standby Vital Auxiliary Pump with Alarm (1)Remarks (12)Turbocharger C3 (1 July 2017) Speed x x Alarm Ac
36、tivation for High Speed only required for turbochargers of categories B and C (All other rows and notes remain unchanged.) (Add new Item L3 in 4-7-4/Table 6B, as follows:) TABLE 6B (continued) Instrumentation and Safety System Functions in Centralized Control Station Generator Prime Mover for Electr
37、ic Propulsion (1 July 2017) Systems Monitored parameters A D Auto start Auto shut down Notes A = alarm. D = display. x = apply. Turbocharger L3 (1 July 2017) Speed of turbocharger x Alarm Activation for High Speed only required for turbochargers of categories B and C. (All other rows and notes remai
38、n unchanged.) ABSGUIDE FOR BUILDING AND CLASSING YACHTS .2017 5 Notice No. 1 July 2017 (Add new Item G1 in 4-7-4/Table 7, as follows:) TABLE 7 Monitoring of Auxiliary Prime-movers and Electrical Generators (See also 4-7-4/Table 3) (1 July 2017) Item Alarm (1)Display (4)Remarks Diesel Engine Lube Oil
39、 A1 Pressure, lube oil inlet low x Pressure Automatic engine shutdown A2 Temperature, inlet high x Temperature A3 Common rail servo oil pressure low x Cooling Medium B1 Pressure or flow low x Pressure, or flow B2 Temperature, outlet high x B3 Level, expansion tank low x If separate from main system
40、Fuel Oil C1 Fuel oil leakage from pressure pipe x C2 Level, in fuel oil daily service tank low x See also 4-7-4/25 C3 Common rail fuel oil pressure low x Crankcase D1 Oil mist in crankcase, mist concentration high; or Bearing temperature high; or Alternative arrangements x Automatic engine shutdown
41、(2)Starting Medium E1 Pressure or level low x Pressure, or level Overspeed F1 Device activated x Automatic shutdown. See 4-2-1/7.5.3 and 4-2-1/7.3 of the Steel Vessel Rules Turbocharger (1 July 2017) G1 High speed x Alarm Activation for High Speed only required for turbochargers of categories B and
42、C Electrical Generator H1 Pressure, bearing, lube oil inlet low x Pressure Prime mover automatic shutdown H2 Voltage off-limits x Voltage To read all phases and at least one bus (3)H3 Frequency off-limits x Frequency H4 Current high x Current To read all phases (3)H5 Transfer of standby generator x (Notes remain unchanged.) 6 ABSGUIDE FOR BUILDING AND CLASSING YACHTS .2017
