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GB/T 25444.2-2010 English PDF

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GB/T 25444.2-2010: Mobile and fixed offshore units -- Electrical installations -- Part 2: System design
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GB/T 25444.2-2010English1014 Add to Cart 6 days [Need to translate] Mobile and fixed offshore units -- Electrical installations -- Part 2: System design Valid GB/T 25444.2-2010

Standard similar to GB/T 25444.2-2010

GB/T 25444.5   GB/T 25444.6   GB/T 25444.3   

Basic data

Standard ID GB/T 25444.2-2010 (GB/T25444.2-2010)
Description (Translated English) Mobile and fixed offshore units -- Electrical installations -- Part 2: System design
Sector / Industry National Standard (Recommended)
Classification of Chinese Standard U60
Classification of International Standard 47.020.60
Word Count Estimation 51,539
Date of Issue 2010-11-10
Date of Implementation 2011-05-01
Quoted Standard GB/T 4205; GB/T 6994-2006; GB/T 10250; GB/T 18039.4; GB/T 20438.1; GB/T 20438.2; GB/T 20438.3; GB/T 20438.4; GB/T 20438.5; GB/T 20438.6; GB/T 20438.7; GB/T 21109.1; GB/T 21109.2; GB/T 21109.3; GB/T 25444.3; GB/T 25444.5-2010; IEC 60038-2002; IEC 60092-504-2001; IEC 60617-DB-2001; IEC 60947-2-2003; IEC 61892-1-2001; IEC 61892-7-1997; IEC 62271-100; SOLAS SOLAS Convention; IMO MODU rules-1989
Adopted Standard IEC 61892-2-2005, IDT
Regulation (derived from) National Standard Approval Announcement 2010 No.8 (Total No.163)
Issuing agency(ies) General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China
Summary This standard specifies the system design requirements of mobile and fixed offshore facilities electrical installations. Applicable to offshore oil drilling industry, production, processing and storage, including pipeline, within the pumping station or tube cleaning station, compressor stations and exposed single buoy mooring facilities. This section does not apply to more than 35000 V AC voltage and DC voltage not exceeding 750V permanent, temporary, All mobile or hand-held electrical device. This section does not apply to fixed electrical installations or medical equipment on tankers.

GB/T 25444.2-2010: Mobile and fixed offshore units -- Electrical installations -- Part 2: System design


---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Mobile and fixed offshore units Electrical installations Part 2. System design ICS 47.020.60 U60 National Standards of People's Republic of China Mobile and fixed offshore facilities System Design. Part 2 electrical installations Part 2. Systemdesign (IEC 61892-2.2005, IDT) Issued on. 2010-11-10 2011-05-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released

Table of Contents

Introduction Ⅴ 1 Scope 1 2 Normative references 1 3 Terms and definitions 2 4 Power 6 4.1 General 6 4.2 Main Power 6 4.3 Emergency power supply 7 4.4 periodically unattended machinery spaces Additional requirements 7 4.5 General provisions renewable power source 8 Arrangement and location 8 4.6 4.7 Output 9 4.8 Additional emergency electrical power system of claim 9 Start emergency generator set 10 4.9 5 System ground 10 5.1 General 10 10 5.2 General Requirements 5.3 neutral grounding method 10 Neutral grounding system 5.4 1000V and below 11 Grounded neutral system of more than 5.5 1000V 11 5.6 and power transformer parallel operation of generators 11 5.7 connected to the grounding resistance housing/structure 11 6 Distribution System 12 6.1 DC power distribution system 12 6.2 AC power distribution system 16 Distribution system 20 of claim 7 7.1 grounding distribution system 20 7.2 Distribution 21 7.3 Load Balancing 21 7.4 Finally, the branch circuit 21 7.5 control circuit 21 7.6 socket 22 7.7 mobile offshore shore power connection facility 22 7.8 motor circuit 22 8 is not the same (demand) coefficient 23 8.1 Finally, the branch circuit 23 8.2 Finally, the non-branch circuit 23 8.3 is not the same application (demand) coefficient of 23 8.4 General requirements for the driving circuit --- 23 9 System analysis and calculations 23 9.1 General 23 9.2 Electrical Load Analysis 24 9.3 Flow Calculation 24 Short circuit calculation 24 9.4 9.5 Analysis of protection and coordination 26 9.6 Calculation of the dynamic power system 26 9.7 Calculation of harmonic currents and voltages 27 10 protection 27 10.1 General 27 10.2 rating and short circuit protection of electrical-related features and options 28 10.3 and overload protection of electrical-related choices 29 10.4 relating to the application of the protective devices Selection 29 10.5 undervoltage protection 30 10.6 Overvoltage protection 31 Lighting 11 31 11.1 General 31 General lighting system 31 11.2 Emergency lighting system 32 11.3 11.4 escape lighting systems 33 11.5 machinery spaces, accommodation spaces and open deck spaces such as lighting circuit 34 34 11.6 Lamps 34 12 Control and instrumentation Safety measures 34 12.1 12.2 supply arrangements 34 34 12.3 trustworthiness 35 12.4 Security 12.5 Isolation 35 12.6 Performance 35 12.7 integration 35 12.8 Development Activities 35 12.9 Electromagnetic Compatibility 35 12.10 Design 35 12.11 Installation and Ergonomics 36 12.12 standardization install 36 Automatic power control devices 12.13 37 12.14 motor control device 39 12.15 public broadcasting and full alarm system 39 12.16 39 Computer System Software 12.17 41 12.18 Test 43 12.19 43, 43 13 Enclosure rating 13.1 General 43 References 45 Power 1 BC/electrical continuity 6 2 TN-S system Figure 13 DC Figure 3 TN-C system, DC 14 Figure 4 TN-CS dc system 15 Figure 5 IT DC system 16 Figure 6 TN-S AC system 17 7 TN-CS system AC 18 8 TN-C system AC 18 9 IT AC systems 19 Table 1 Main characteristics of neutral grounding Summary 11 Table 2 DC system voltage 16 Table 3 AC system or related device 19 having a nominal voltage of 100V ~ 1000V Table 4 has a three-phase AC system the following nominal voltage 1kV ~ 35kV or related equipment 20 Table 5 general lighting illuminance level 31 Table 6 escape lighting illuminance level 33 Table 7 mobile and fixed offshore facilities protection class minimum requirements 44

Foreword

GB/T 25444 "mobile and fixed offshore installations electrical devices" is divided into seven sections. --- Part 1. General requirements and conditions; --- Part 2. system design; --- Part 3. equipment; --- Part 4. Cable; --- Part 5. mobile facilities; --- Part 6. Installation; --- Part 7. Hazardous area. This section GB/T 25444 Part 2. This section identical with IEC 61892-2.2005 "the second part of the mobile and fixed offshore installations Electrical installations. System Design" (In English). For ease of use, this section made the following editorial changes. a) "This part of IEC 61892" be replaced by "GB/T 25444 this part" or "this part"; b) For IEC 61892-2.2005 international standard references, there is equated adopted as our standard, and in this section by reference Our standard instead of an international standard, not identical with the rest of our standards in this section are referenced directly; c) use a decimal point instead of a comma as the decimal point, '' ''; d) Remove international standards preface, introduction; e) presentation of in accordance with the provisions of GB/T 1.1-2000 also been modified; f) the provisions of the footnotes in this section are numbered sequentially. This part is proposed by the China State Shipbuilding Corporation. This part of the National Standardization Technical Committee Marine Boats (SAC/TC12/SC6) centralized. This section drafted by. China Shipbuilding Technology and Economy Research Institute. The main drafters of this section. Yan Ping. Mobile and fixed offshore facilities System Design. Part 2 electrical installations

1 Scope

GB/T 25444 in this section (hereinafter referred to in this section) provides design system for mobile and fixed offshore installations to the electrical device Demand for offshore oil industry, drilling, production, processing and storage, including the pipeline, pumping stations or inner tube cleaning station, compressor station and the exposed single Buoy mooring facilities. This section applies to not more than 35000V AC voltage and DC voltage not exceeding 750V permanent, temporary, mobile or handheld All electrical installations (AC and DC voltage of nominal voltage). This section does not apply to fixed electrical installations or medical equipment on tankers.

2 Normative references

The following documents contain provisions which, through reference GB/T 25444 in this section constitute provisions of this section. For dated reference documents Member, all subsequent amendments (not including errata content) or revisions do not apply to this section, however, encouraged to reach under this section Parties to research agreement to use the latest versions of these documents. For undated reference documents, the latest versions apply to this section. GB/T 4205 man-machine interface (MMI) operating rules (GB/T 4205-2003, IEC 60447.1993, IDT) GB/T 6994-2006 marine electrical equipment definitions and general provisions (IEC 60092-101.2002, IDT) GB/T 10250 Marine Electrical and electronic equipment electromagnetic compatibility (GB/T 10250-2007, IEC 60533.1999, IDT) GB/T 18039.4 Electromagnetic compatibility environment facility frequency conducted disturbances compatibility level (GB/T 18039.4-2003, IEC 61000-2-4.1994, IDT) GB/T 20438 functional safety (all parts), electrical/electronic/programmable electronic safety-related systems [GB/T 20438 (all section Points) -2006, IEC 61508 (all parts), IDT] Functional safety GB/T 21109 (all parts) process industry Safety Instrumented System [GB/T 21109 (all parts) - 2007, IEC 61511 (all parts).2003, IDT] GB/T 25444.3 - Part 3 mobile and fixed offshore installations Electrical installations. equipment (GB/T 25444.3-2010, IEC 61892-3.2007, IDT) GB/T 25444.5-2010 mobile and fixed offshore installations electrical installations - Part 5. Mobile Facilities (IEC 61892- 5.2000, IDT) IEC 60038.2002 International Electrotechnical Commission standard voltage (IEC standardvoltages) IEC 60092-504.2001 marine electrical equipment Part 504. album Control and instrumentation (Electrical instalationsinships-Part 504. Specialfeatures-Controlandinstrumentation) IEC 60617-DB.20011) Graphic chart symbols and architecture topographical installation plans and charts (Graphical symbolsfordiagrams-Architecturalandtopographicalinstalationplansanddiagrams) 1) "DB" IEC reference online database. IEC 60947-2.2003 Low-voltage switchgear and control equipment Part 2. Circuit Breaker (Lowvoltageswitchgear andcontrolgear-Part 2. Circuit-breakers) IEC 61892-1.2001 Part 1 mobile and fixed offshore installations Electrical installations. General requirements and conditions (Mobile andfixedoffshoreunits-Electricalinstaltions-Part 1. Generalrequirementsandconditions)

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