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GB/T 25444.7-2010: Mobile and fixed offshore units -- Electrical installations -- Part 7: Hazardous areas
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| GB/T 25444.7-2010 | English | 834 |
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Mobile and fixed offshore units -- Electrical installations -- Part 7: Hazardous areas
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GB/T 25444.7-2010
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Standard similar to GB/T 25444.7-2010 GB/T 25444.5 GB/T 25444.6 GB/T 25444.3 Basic data | Standard ID | GB/T 25444.7-2010 (GB/T25444.7-2010) | | Description (Translated English) | Mobile and fixed offshore units -- Electrical installations -- Part 7: Hazardous areas | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | U60 | | Classification of International Standard | 47.020.60 | | Word Count Estimation | 42,494 | | Date of Issue | 2010-11-10 | | Date of Implementation | 2011-05-01 | | Quoted Standard | GB 3836.14; GB/T 25444.2; GB/T 25444.3; GB/T 25444.5; GB/T 25444.6; IEC 60079-0-2007; IEC 60079-1-2007; IEC 60079-2-2007; IEC 60079-5-2007; IEC 60079-6-2007; IEC 60079-7-2006; IEC 60079-11-2006; IEC 60079-14-2002; IEC 60079-15-2005; IEC 60079-18-2004; IEC 60079-20; IEC 60079-26-2006; IEC 61892-1-2001; IEC 61892-4; IMO MODU rules | | Adopted Standard | IEC 61892-7-2007, 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 option to require mobile and fixed offshore installations within hazardous area classification and hazardous area electrical equipment. Applicable to offshore oil drilling industry, production, processing and storage, including pipeline, within the pumping station or tube cleaning station, compressor stations and a single floating outside Bo Jane mooring facilities. This section applies to the danger zone AC voltage is not more than 35 000 V and DC voltage not exceeding 750 V, permanent, temporary, All mobile or hand-held electrical device. This section does not apply to medical electrical equipment and cabin interior or electrical devices tankers. | GB/T 25444.7-2010: Mobile and fixed offshore units -- Electrical installations -- Part 7: Hazardous areas
---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 7. Hazardous areas
ICS 47.020.60
U60
National Standards of People's Republic of China
Mobile and fixed offshore installations electrical installations
Part 7. Hazardous area
Part 7. Hazardousareas
(IEC 61892-7.2007, 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 Ⅲ
1 Scope 1
2 Normative references 1
3 Terms and definitions 2
4 area classification 6
4.1 General 6
4.2 Principle 7 Security
4.3 source of release 7
Type 4.4 District 7
4.5 density associated gas or vapor released 7
4.6 mobile drilling facility 8
4.7 Fixed production facilities 8
4.8 mobile production facilities 9
4.9 provisions for mobile and fixed offshore installations 9
4.10 openings, access and ventilation conditions on the scope of the danger zone 10
5 Electrical System 10
5.1 Power 10
10 5.2 Distribution System
5.3 Electrical Protection 10
State of emergency drilling operations 5.4 - 11 mobile drilling facilities
5.5 Emergency off - ignition source control - fixed production facilities 11
5.6 dangerous spark protection 12
5.7 caused dangerous rotating member 13
Electrical equipment 13 6
6.1 General 13
6.2 Electrical select 13
Electrical hazard area 6.3 14
6.4 IEC standard does not apply electrical selection 15
6.5 Handheld Electric 15
7 Installation 16
7.1 General 16
7.2 Electrical select 16
Wiring Systems 16 7.3 General requirements
7.4 connection 16
7.5 unused openings 16
7.6 circuit through the danger zone 17
7.7 unused wires 17
7.8 cable surface temperature 17
7.9 cable connector 17
7.10 cabling system 17
7.11 pipeline system 17
7.12 then mixed system 18
Electric 7.13 19 hazardous areas
Wiring Systems 7.14 0 District 19
7.15 intrinsically safe electrical installations 19
7.16 Simple Electric 20
Verify 7.17 intrinsically safe circuits 20
7.18 type of protection "d" Additional requirements for flameproof enclosure 20
7.19 type of protection "e" increased safety Additional requirements 22
7.20 Additional requirements for type of protection "p" supercharged 23
Resistance heating means 25 7.21
8 ventilation 26
8.1 General 26
8.2 There are 26 electrical ventilation premises
8.3 Protection of pressurized ventilation compartment or building and operating 26
8.4 Overvoltage protection value and airflow value 27
27 8.5 supercharger failure
8.6 battery compartment ventilation 28
8.7 Other hazards ventilated spaces 29
9 inspection and maintenance 29
9.1 General 29
9.2 Check 29
30 9.3 Electrical Insulation
9.4 on the use of an ignition source prevention 30
9.5 Maintenance 30
30 9.6 Qualification
10 File 30
30 10.1 Regional Classification
10.2 drawings, data table 30
10.3 Ventilation 31
10.4 Appliance 31
10.5 General requirements for installation 31
10.6 Maintenance 31
Document management 31 10.7
Appendix A (informative) Example --- release source processing device 32
Annex B (informative) hazardous area classification method sketch 33
Annex C (informative) danger zone data tables and symbols 34
References 37
Foreword
GB/T 25444 "mobile and fixed offshore installations electrical device" 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 7.
This section identical with IEC 61892-7.2007 "Part 7 mobile and fixed offshore installations Electrical installations. danger zone"
(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 61892-7.2007 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 decimal comma ",". ",";
d) Remove international standards preface, introduction;
e) presentation of in accordance with the provisions of GB/T 1.1-2000 also been modified.
This part of the Annex A, Annex B, Annex C is informative appendix.
This part is proposed by the China State Shipbuilding Corporation.
This part of the National Standardization Technical Committee Marine Boats (SAC/TC12) centralized.
This section drafted by. China Shipbuilding Technology and Economy Research Institute.
The main drafters of this section. Yan Ping, Wang away.
Mobile and fixed offshore installations electrical installations
Part 7. Hazardous area
1 Scope
GB/T 25444 in this section (hereinafter referred to in this section) provides mobile and fixed offshore installations in hazardous areas and hazardous area classification
Select the domain requirements for electrical equipment for the offshore oil industry, drilling, production, processing and storage, including cleaning the pipelines, pumping stations or pipes
Stations, compressor stations and exposed single buoy mooring facility.
This section applies to the hazardous area is not more than 35000V ac voltage and dc voltage not exceeding 750V, permanent, temporary,
All electrical devices or mobile handheld (AC and DC voltage of nominal voltage).
This section does not apply to medical electrical equipment or electrical device on the tanker compartment.
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 references, the latest edition of
In this section.
GB 3836.14 Electrical apparatus for explosive gas atmospheres - Part 14. Classification of hazardous areas (GB 3836.14-2000, idt
IEC 60079-10.1995)
GB/T 25444.2 mobile and fixed offshore facilities Part 2 Electrical installations. System Design (GB/T 25444.2-
2010, IEC 61892-2.2005, 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 mobile and fixed offshore installations electrical installations - Part 5. Mobile Facilities (GB/T 25444.5-
2010, IEC 61892-5.2000, IDT)
GB/T 25444.6 - Part 6 mobile and fixed offshore installations Electrical installations. Installation (GB/T 25444.6-2010,
IEC 61892-6.2007, IDT)
IEC 60079-0.2007 Explosive Atmospheres - Part 0. General rules (Explosiveatmospheres-Part0.
Equipment-Generalrequirements)
IEC 60079-1.2007 Explosive atmospheres - Part 1. "d" flameproof protection equipment (Explosiveatmospheres-Part 1.
Equipmentprotectionbyflameproofenclosure "d")
IEC 60079-2.2007 Explosive atmospheres - Part 2. "p" positive pressure protection device (Explosiveatmospheres-Part 2.
Equipmentprotectionbypressurizedenclosure "p")
IEC 60079-5.2007 Explosive atmospheres - Part 5. "q" Sand filled protective equipment (Explosiveatmospheres-Part 5.
Equipmentprotectionbypowderfiling "q")
IEC 60079-6.2007 Explosive atmospheres - Part 6. "o" oil-filled protective equipment (Explosiveatmospheres-Part 6.
Equipmentprotectionbyoilimmersion "o")
IEC 60079-7.2006 Explosive atmospheres - Part 7. "e" increased safety protection equipment (Explosiveatmospheres-Part 7.
Equipmentprotectionbyincreasedsafety "e")
IEC 60079-11.2006 Explosive atmospheres - Part 11. "i" intrinsic safety protection equipment (Explosiveatmospheres-
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