DP Notations

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Dynamic positioning system notation comparison
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  IMO equipment class BV ABSGLLRNKRINARSIRSCCSNMD Bureau Veritas American Bureau of Shipping Germanischer Lloyd Lloyds Register of Shipping Nippon Kaiji Kyokai Registro Italiano Navale Russian Register of Shipping Indian Register of ShippingChina Classification SocietyNorwegian Maritime Directorate DYNAPOS SAMDYNAPOS AUTSDPS 0DPS-0DP (CM)DYNAPOS SAM GS(KK) DPS 0 Class 1 DYNAPOS AM/ATDYNAPOS AUTDPS 1DPS-1DP 1DP (AM)Class A DPDYNAPOS AM/ATDYNPOS-1GS(SK)DP-1DPS 1 Class 2 DYNAPOS AM/AT RDYNAPOS AUTRDPS 2DPS-2DP 2DP (AA)Class B DPDYNAPOS AM/AT RDYNPOS-2GS(SS)DP-2DPS 2 Class 3 DYNAPOS AM/AT RSDYNAPOS AUTRODPS 3DPS-3DP 3DP (AAA)Class C DPDYNAPOS AM/AT RSDYNPOS-3DP-3DPS 3 Source: Capt. D. Bray FNI – DP Operator’s Handbook. The Nautical Institute, 2010. P.1 Classification societiesIMO MSC/Circ.645, Guidelines for vessels with dynamic positioning systems DNV DP class notation Det Norske Veritas  DP0 IMOBV DNVABSGLLRNKRINARUSSIANINDIACCS Generator and prime movers -Non-RedundantNon-RedundantNon-Redundant-Non-Redundant---Non-Redundant- Main switchboard -Non-Redundant11-1---Non-Redundant- Bus tie breaker -No 00-0---No- Distribution system -Non-RedundantNon-RedundantNon-Redundant-Non-Redundant---Non-Redundant- Power management -Non-RedundantNo No -Yes---No - Arrangement of thruster -Non-RedundantNon-RedundantNon-Redundant-Non-Redundant---Non-Redundant- Auto control; No computer systems -111-1---1- Manual control: joystick with auto heading -May be fittedNoNo-No ---1 (No)- Single levers for each thruster -YesYesYes-Yes----- Pos ref systems -111-1---1- Wind -111-1---1- VRS -111-1---1- Gyro compass -111-1---1- UPS -100-0----- Alternative control station for backup unit -N/ANo N/A-No---N/A- DP0 IMOBV DNVABSGLLRNKRINARUSSIANINDIACCS Consequence Analysis -NONONO-NO--NO- FMEA -NONOYES-NO--NO- Installation manual/systems drawings -YESYESYES-YES--YES- FAT/CAT -YESYESYES-YES--YES- Approval of cable routing for power and control circuits -NONONO-NO--YES- No single fault can result in more than 50% loss of DP capacity -N/ANONO-NO--NO- Equivalent to IMO Class -N/AN/AN/A-N/A-N/A-  DP1 IMOBV DNVABSGLLRNKRINARUSSIANINDIACCS Generator and prime movers Non-RedundantNon-RedundantNon-RedundantNon-RedundantNon-RedundantNon-RedundantNon-RedundantNon-RedundantNon-RedundantNon-RedundantNon-Redundant Main switchboard 111111111Non-Redundant1 Bus tie breaker 000000000No 0 Distribution system Non-RedundantNon-RedundantNon-RedundantNon-RedundantNon-RedundantNon-RedundantNon-RedundantNon-RedundantNon-RedundantNon-RedundantNon-Redundant Power management No Non-RedundantNo No No Yes-Non-Redundant-NoNo Arrangement of thruster Non-RedundantNon-RedundantNon-RedundantNon-RedundantNon-RedundantNon-RedundantNon-RedundantNon-RedundantNon-RedundantNon-RedundantNon-Redundant Auto control; No computer systems 1Non-Redundant11111Non-Redundant111 Manual control: joystick with auto heading YesYesYesYesYesYesYesYesYes1 (yes)Yes Single levers for each thruster YesYesYesYesYesYes-YesYes-Yes Pos ref systems 122212121/222 Wind 12121212121 VRS 12111212121 Gyro compass 12121212121 UPS 111111111-1 Alternative control station for backup unit NoN/ANoN/AN/ANo N/AN/ANo N/ANo DP1 IMOBV DNVABSGLLRNKRINARUSSIANINDIACCS Consequence Analysis NONONONONONONONONONONO FMEA NONONOYESNONONONO-NOYES Installation manual/systems drawings YESYESYESYESYESYESYESYESYESYESYES FAT/CAT YESYESYESYESYESYESYESYES-YESYES Approval of cable routing for power and control circuits NONONONONONO-NONOYESNO No single fault can result in more than 50% loss of DP capacity NON/ANONON/ANO-N/A-NON/A Equivalent to IMO Class11111111111  DP2 IMOBV DNVABSGLLRNKRINARUSSIANINDIACCS Generator and prime movers RedundantRedundantRedundantRedundantRedundantRedundantRedundantRedundantRedundantRedundantRedundant Main switchboard 1 with bus tieRedundant1 with bus tie1 with bus tie11 with bus tie1Redundant1 with bus tieRedundant1 Bus tie breaker 1Yes11111Yes1YesYes Distribution system RedundantRedundant with separationRedundantRedundantRedundantRedundantRedundantRWSRedundantRedundantRedundant with separation Power management No strict requirement to be redundantRedundantYesYesIf installed, adequate redundancyYes-Redundant-NoInstalled Arrangement of thruster RedundantRedundantRedundantRedundantRedundantRedundantRedundantRedundantRedundantRedundantRedundant Auto control; No computer systems 22222222222 Manual control: joystick with auto heading YesYesYesYesYesYesYesYesYesNoYes Single levers for each thruster YesYesYesYesYesYes-YesYes-Yes Pos ref systems 33333333333 Wind 22222222322 VRS 2/3222/322/322322 or 3 Gyro compass 33322 or 332 or 33322 UPS 222122222-1 Alternative control station for backup unit No N/ANoN/AN/ANoN/AN/ANoN/ANo DP2 IMOBV DNVABSGLLRNKRINARUSSIANINDIACCS Consequence Analysis YESYESYESYESYESNOYESYESYESYESYES FMEA NOYESYESYESYESYESYESYES-YESYES Installation manual/systems drawings YES YESYESYESYESYESYESYESYESYESYES FAT/CAT YESYESYESYESYESYESYESYES-YESYES Approval of cable routing for power and control circuits YESNOYESYESNOYES-NOYESYESNO No single fault can result in more than 50% loss of DP capacity YESYESYESYESYESYES-YES-YESYES Equivalent to IMO Class 22222222222
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