ABS 62 NOTICE 1-2016 GUIDE FOR BUILDING AND CLASSING YACHTS 2016.pdf

1、 GUIDE FOR BUILDING AND CLASSING YACHTS 2016 NOTICE NO. 1 JULY 2016 The following Rule Changes were approved by the ABS Rules Committee on 23 May 2016 and become EFFECTIVE AS OF 1 JULY 2016. (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 3

3、HULL CONSTRUCTION AND EQUIPMENT CHAPTER 2 HULL STRUCTURES AND ARRANGEMENTS SECTION 12 BULWARKS, RAILS, FREEING PORTS, PORTLIGHTS, WINDOWS, VENTILATORS, TANK VENTS, AND OVERFLOWS 7 Ventilators, Tank Vents and Overflows 7.3 Ventilators (Revise Subparagraph 3-2-12/7.3.1, as follows:) 7.3.1 Coaming Cons

4、truction (1 July 2016) Ventilators on exposed freeboard decks, superstructure decks, or deckhouses are to be of substantial construction. The coamings are to be effectively secured to the deck. Coamings which are more than 900 mm (35.5 in.) high and which are not supported by adjacent structures are

5、 to have additional strength and attachment. Ventilators passing through superstructures other than enclosed superstructures are to have substantially constructed coamings of steel or equivalent material at the freeboard deck. Where a fire damper is located within a ventilation coaming, an inspectio

6、n port or opening at least 150 mm (6 in.) in diameter is to be provided in the coaming to facilitate survey of the damper without disassembling the coaming or the ventilator. The closure provided for the inspection port or opening is to maintain the watertight integrity of the coaming and, if approp

7、riate, the fire integrity of the coaming. ABSGUIDE FOR BUILDING AND CLASSING YACHTS .2016 1 Notice No. 1 July 2016 PART 4 VESSEL SYSTEMS AND MACHINERY CHAPTER 6 ELECTRICAL INSTALLATIONS SECTION 2 SHIPBOARD SYSTEMS 11 System for Steering Gear (Revise Paragraph 4-6-2/11.1, as follows:) 11.1 Power Supp

8、ly Feeder (1 July 2016) Each electric or electro-hydraulic steering gear is to be served by at least two exclusive circuits fed directly from the main switchboard. However, one of the circuits may be supplied through the emergency switchboard. For vessels fitted with alternative propulsion and steer

9、ing arrangements, such as azimuthing propulsors, where the propulsion power exceeds 2,500 kW per thruster unit, see 4-3-5/5.13.3 of the Steel Vessel Rules. An auxiliary electric or electro-hydraulic steering gear associated with a main electric or electro-hydraulic steering gear may be connected to

10、one of the circuits supplying this main steering gear. The circuits supplying an electric or electro-hydraulic steering gear are to have adequate rating for supplying all motors, control system and instrumentation which are normally connected to them and operated simultaneously. The circuits are to

11、be separated throughout their length as widely as is practicable. PART 4 VESSEL SYSTEMS AND MACHINERY CHAPTER 6 ELECTRICAL INSTALLATIONS SECTION 3 SHIPBOARD INSTALLATION 3 Equipment Installation and Arrangement 3.7 Accumulator Batteries 3.7.5 Maintenance of Batteries (Revise Item 4-6-3/3.7.5(a), as

12、follows.) 3.7.5(a) Maintenance Schedule of Batteries (1 July 2016). Where batteries are fitted for use for essential and emergency services, a maintenance schedule of such batteries is to be provided and maintained. The schedule is to include all batteries used for essential and emergency services,

13、including system batteries installed in battery rooms, battery lockers and deck boxes as well as batteries installed within vendor supplied equipment. Examples of batteries included with equipment are: Computer equipment and programmable logic controllers (PLC) used in computer based systems and pro

14、grammable electronic systems, when used for essential or emergency services. Navigation equipment, such as the equipment required by SOLAS, Chapter V, Regulation 19. The schedule is to be submitted for review, during their plan approval or the new building survey, and is to include at least the foll

15、owing information regarding the batteries. (Following text remains unchanged,) 2 ABSGUIDE FOR BUILDING AND CLASSING YACHTS .2016 Notice No. 1 July 2016 (Revise Paragraph 4-6-3/3.31, as follows.) 3.31 High Fire Risk Areas (1 July 2016) For the purpose of 4-6-3/5.17, the examples of the high fire risk

16、 areas are the following: i) Machinery spaces as defined by 4-1-1/13.1 and 4-1-1/13.3, except spaces having little or no fire risk such as machinery spaces which do not contain machinery having a pressure lubrication system and where storage of combustibles is prohibited (e.g., ventilation and air-c

17、onditioning rooms, windlass room, steering gear room, stabilizer equipment room, electrical propulsion motor room, rooms containing section switchboards and purely electrical equipment other than oil-filled electrical transformers (above 10 kVA), shaft alleys and pipe tunnels, and spaces for pumps a

18、nd refrigeration machinery not handling or using flammable liquids). ii) Spaces containing fuel treatment equipment and other highly flammable substances iii) Galley and pantries containing cooking appliances iv) Laundry containing drying equipment PART 4 VESSEL SYSTEMS AND MACHINERY CHAPTER 6 ELECT

19、RICAL INSTALLATIONS SECTION 5 SPECIALIZED INSTALLATIONS 1 High Voltage Systems 1.1 General 1.1.3 Air Clearance and Creepage Distance (1 July 2016) (Revise Item 4-6-5/1.1.3(d), as follows:) 1.1.3(d) Creepage Distances (1 July 2016). Creepage distances between live parts and between live parts and ear

20、thed metal parts are to be in accordance with IEC 60092-503 for the nominal voltage of the system, the nature of the insulation material, and the transient overvoltage developed by switch and fault conditions. i) The minimum creepage distances for main switchboards and generators are given in the Ta

21、ble below: Nominal Voltage V Minimum Creepage Distance for Proof Tracking Index mm (in.) 300 V 375 V 500 V 600 V 1000-1100 26 (1.02)(1)24 (0.94)(1)22 (0.87)(1)20 (0.79)(1) 3300 63 (2.48) 59 (2.32) 53 (2.09) 48 (1.89) 6600 113 (4.45) 108 (4.25) 99 (3.9) 90 (3.54) 11000(2)183 (7.20) 175 (6.89) 162 (6.

22、38) 150 (5.91) Notes: 1 A distance of 35 mm is required for busbars and other bare conductors in main switchboards. 2 Creepage distances for equipment with nominal voltage above 11 kV shall be subject to consideration. ABSGUIDE FOR BUILDING AND CLASSING YACHTS .2016 3 Notice No. 1 July 2016 (Renumbe

23、r Item 4-6-5/1.1.3(e) as Subitem ii), as follows:) ii) The minimum creepage distances for equipment other than main switchboards and generators are given in the Table below: (Table remains unchanged.) (Delete Item 4-6-5/1.1.3(f).) 1.9 Equipment Installation and Arrangement 1.9.2 Protective Arrangeme

24、nts (Revise Item 4-6-5/1.9.2(b), as follows:) 1.9.2(b) Warning Plate (1 July 2016). At the entrance of such spaces, a suitable marking is to be placed which indicates danger of high-voltage and the maximum voltage inside the space. For high-voltage electrical equipment installed outside these spaces

25、 a similar marking is to be provided. An adequate, unobstructed working space is to be left in the vicinity of high voltage equipment for preventing potential severe injuries to personnel performing maintenance activities. In addition, the clearance between the switchboard and the ceiling/deckhead

26、above is to meet the requirements of the Internal Arc Classification according to IEC 62271-200. 1.9.3 Cables (Revise Item 4-6-5/1.9.3(h), as follows:) 1.9.3(h) Cable Test after Installation (1 July 2016). A voltage withstand test is to be carried out on each completed cable and its accessories befo

27、re a new high voltage installation, including additions to an existing installation, is put into service. An insulation resistance test is to be carried out prior to the voltage withstand test being conducted. For cables with rated voltage (Uo/U) above 1.8/3 kV (Um= 3.6 kV) an AC voltage withstand t

28、est may be carried out upon advice from high voltage cable manufacturer. One of the following test methods to be used: i) An AC test voltage for 5 min with the phasetophase voltage of the system applied between the conductor and the metallic screen/sheath. ii) An AC voltage test for 24 h with the no

29、rmal operating voltage of the system. iii) A DC test voltage equal to 4Uomay be applied for 15 minutes. For cables with rated voltage (Uo/U) up to 1.8/3 kV (Um= 3.6 kV), a DC voltage equal to 4Uoshall be applied for 15 minutes. After completion of the test, the conductors are to be connected to eart

30、h for a sufficient period in order to remove any trapped electric charge. The insulation resistance test is then repeated. The above tests are for newly installed cables. If due to repairs or modifications, cables which have been in use are to be tested, lower voltages and shorter durations should b

31、e considered. 1.11 Machinery and Equipment 1.11.2 Switchgear and Control-gear Assemblies (2014) (Revise Item 4-6-5/1.11.2(d), as follows:) 1.11.2(d) Shutters (1 July 2016). The fixed contacts of withdrawable circuit breakers and switches are to be so arranged that in the withdrawn position, the live

32、 contacts of the bus bars are automatically covered. Shutters are to be clearly marked for incoming and outgoing circuits. This may be achieved with the use of colors or labels. 4 ABSGUIDE FOR BUILDING AND CLASSING YACHTS .2016 Notice No. 1 July 2016 (Revise Item 4-6-5/1.11.2(f), as follows:) 1.11.2

33、f) Arc Flash and Associated Installation Requirements (1 July 2016) i) Internal Arc Classification (IAC). Switchgear and control gear assemblies are to be Internal Arc Classified (IAC). Where switchgear and control gear are accessible by authorized personnel only accessibility Type A is sufficient

34、IEC 62271-200; Annex AA; AA 2.2). Accessibility Type B is required if accessible by non-authorized personnel. Installation and location of the switchgear and control gear is to correspond with its internal arc classification and classified sides (F, L and R). ii) Calculations, in accordance with th

35、e applicable parts of Standard IEEE 1584 or other recognized standard, are to be made to establish: The maximum current that can flow in the case of an arc fault The maximum time and current that could flow if arc protection techniques are adopted The distance, from the location of the arc flash, at

36、 which the arc flash energy would be 1.2 calories per cm2if the enclosure is open iii) In addition to the marking required by the equipment design standard, arc flash data consistent with the Design Operating Philosophy and the required PPE is also to be indicated at each location where work on the

37、HV equipment could be conducted. 1.11.3 Transformers (Revise Item 4-6-5/1.11.3(a), as follows:) 1.11.3(a) Application (1 July 2016). Provisions of 4-6-5/1.11.3 are applicable to power transformers for essential services. See also 4-6-4/9. Items 4-6-5/1.11.3(c) and 4-6-5/1.11.3(d) are applicable to t

38、ransformers of the dry type only. These requirements are not applicable to transformers intended for the following services: Instrument transformers. Transformers for static converters. Starting transformers. Dry type transformers are to comply with the applicable parts of the IEC Publication 60076-

39、11. Liquid-filled transformers are to comply with the applicable parts of the IEC 60076 Series. Oil-immersed transformers are to be provided with the following alarms and protections: Liquid level (Low) alarm Liquid temperature (High) alarm Liquid level (Low) trip or load reduction Liquid temperatur

40、e (High) trip or load reduction Gas pressure relay (High) trip ABSGUIDE FOR BUILDING AND CLASSING YACHTS .2016 5 Notice No. 1 July 2016 1.13 Design Operating Philosophy (Revise Subparagraph 4-6-5/1.13.4, as follows.) 1.13.4 Accessibility (1 July 2016) An adequate, unobstructed working space of at le

41、ast 2 m (6 ft) is to be left in the vicinity of high voltage equipment for preventing potential severe injuries to personal performing maintenance activities. Where the clear space around a location where activity is taking place is less than 2 m (6 ft), then the activities are to be covered in suff

42、icient detail to take into account the work involved and the possible need to have clear and safe access for emergency medical evacuation. Where recommended by the switchgear manufacturer, the working space may be reduced to a minimum of 1.5 m (5 ft) due to special considerations such as the use of arc resistant switchgear. Activities that do not require operation at the switchboard (e.g., telephones or manual call points) should not require the operator to be within 2 m (6 ft) of the switchboard. 6 ABSGUIDE FOR BUILDING AND CLASSING YACHTS .2016