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GB/T 3836.2-2021
GB
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 29.260.20
CCS K 35
Replacing GB 3836.2-2010
Explosive Atmospheres – Part 2: Equipment
Protection by Flameproof Enclosures “d”
(ISO 60079-1:2014, Explosive Atmospheres – Part 1: Equipment
Protection by Flameproof Enclosures “d”, MOD)
ISSUED ON: OCTOBER 11, 2021
IMPLEMENTED ON: MAY 01, 2022
Issued by: State Administration for Market Regulation;
Standardization Administration of PRC.
Table of Contents
Foreword ... 4
Introduction ... 12
1 Scope ... 15
2 Normative References ... 15
3 Terms and Definitions ... 16
4 Level of Protection (Equipment Protection Level, EPL) ... 19
5 Flameproof Joints ... 21
6 Sealed Joints ... 34
7 Operating Rods ... 36
8 Supplementary Requirements for Shafts and Bearings ... 37
9 Light-Transmitting Parts ... 40
10 Breathing and Draining Devices which form Part of a Flameproof Enclosure
... 40
11 Fasteners and Openings ... 47
12 Materials ... 48
13 Entries for Flameproof Enclosures ... 50
14 Verification and Tests ... 55
15 Type Tests ... 55
16 Routine Tests ... 70
17 Switchgear for Group I ... 73
18 Lampholders and Lamp Caps ... 74
19 Non-Metallic Enclosures and Non-Metallic Parts of Enclosures ... 75
20 Marking ... 77
21 Instructions... 78
Annex A (Normative) Additional Requirements for Crimped Ribbon Elements
and Multiple Screen Elements of Breathing and Draining Devices ... 79
Annex B (Normative) Additional Requirements for Elements, with Non-
Measurable Paths of Breathing and Draining Devices ... 80
Annex C (Normative) Additional Requirements for Flameproof Entry Devices
... 83
Annex D (Normative) Empty Flameproof Enclosures as Ex Components ... 95
Annex E (Normative) Cells and Batteries Used in Flameproof “d” Enclosures
... 99
Annex F (Informative) Mechanical Properties for Screws and Nuts ... 105
Annex G (Normative) Additional Requirements for Flameproof Enclosures with
an Internal Source of Release (Containment System) ... 106
Annex H (Normative) Requirements for Machines with Flameproof “d”
Enclosures Fed from Converters ... 111
Annex I (Normative) Supplement Provisions of Group I Electrical Equipment
... 112
Annex J (Informative) Example of Supplemental Mechanical Means of Securing
the Cemented Joint ... 114
Bibliography ... 115
Foreword
This Document was drafted as per the rules specified in GB/T 1.1-2020 Directives for
Standardization – Part 1: Rules for the Structure and Drafting of Standardizing
Documents.
This Document is Part 2 of GB/T 3836 Explosive Atmospheres. GB/T 3836 has
published the following parts:
--- Part 1: Equipment – General Requirements;
--- Part 2: Equipment Protection by Flameproof Enclosure “d”;
--- Part 3: Equipment Protection by Increased Safety “e”;
--- Part 4: Equipment Protection by Intrinsic Safety “i”;
--- Part 5: Equipment Protection by pressurized Enclosure “p”;
--- Part 6: Equipment Protection by Liquid Immersion “o”;
--- Part 7: Equipment Protection by Powder Filling “q”;
--- Part 8: Equipment Protection by Type of Protection “n”;
--- Part 9: Equipment Protection by Encapsulation “m”;
--- Part 11: Material Characteristics for Gas and Vapour Classification - Test
Methods and Data;
--- Part 12: Material Characteristics for Combustible Dusts - Test Methods;
--- Part 13: Equipment Repair, Overhaul, Reclamation and Modification;
--- Part 14: Classification of Areas - Explosive Gas Atmosphere;
--- Part 15: Electrical Installations Design, Selection and Erection;
--- Part 16: Electrical Installations Inspection and Maintenance;
--- Part 17: Equipment Protection by Pressurized Room “p” and Artificially Ventilated
Room “v”;
--- Part 18: Intrinsically Safe Electrical Systems;
--- Part 20: Equipment with Equipment Protection Level (EPL) Ga;
--- Part 21: Application of Quality Systems for Equipment Manufacture;
--- Part 22: Protection of Equipment and Transmission System Using Optical
Radiation;
--- Part 23: Group I, Category EPL Ma Equipment Intended to Remain Functional in
Atmospheres Endangered by Firedamp and/or Coal Dust;
--- Part 24: Equipment Protection by Special Protection “s”;
--- Part 25: Requirements for Process Sealing between Flammable Process Fluids
and Electrical Systems;
--- Part 26: Electrostatic Hazards – Guidance;
--- Part 27: Electrostatic Hazards – Test;
--- Part 28: Non-Electrical Equipment for Explosive Atmospheres - Basic Method
and Requirements;
--- Part 29: Non-Electrical Equipment for Explosive Atmospheres - Constructional
Safety “c”, Control of Ignition Source “b”, Liquid Immersion “k”;
--- Part 30: Equipment and Components in Explosive Atmospheres in Underground
Mines;
--- Part 31: Equipment Dust Ignition Protection by Enclosure “t”;
--- Part 32: Intrinsically Safe Systems with Electronically Controlled Spark Duration
Limitation;
--- Part 33: Equipment in Adverse Service Conditions;
--- Part 34: Equipment Assemblies;
--- Part 35: Classification of Areas for Explosive Dust Atmospheres.
This Document replaced GB 3836.2-2010 Explosive Atmospheres - Part 2: Equipment
Protection by Flameproof Enclosures “d”. Compared with GB 3836.2-2010, this
Document made the major technical changes besides the structural adjustments and
editorial modifications:
--- Delete the clause of equipment category and temperature group (see Clause 4
of 2010 Edition);
--- Add the Clause of protection level (see Clause 4 of this Edition);
--- Add special conditions of use that the flameproof joints are not expected to be
repaired (see 5.1 of this Edition);
---Add the requirements when the thickness of the metal coating exceeds 0.008mm
(see 5.1 of this Edition);
--- Add the requirements for multi-section joints (see 5.2.9 of this Edition);
--- Change the maximum gap value of the joint surface of Class-II A and Class-II B
enclosures with a volume greater than 2000cm3 (see Table 2 of this Edition; Table
1 of 2010 Edition);
--- Add the requirements for the supplementary mechanical fixing method of the
bonded joint surface (see 6.1.2 of this Edition);
--- Add the test requirements for bonded joint surface (see 6.1.2 of this Edition);
---Add the requirements for the joint surface of molten glass (see 6.2 of this Edition);
--- Change the type test sequence of breathing and draining devices used as Ex
components (see 10.9.3 of this Edition, 10.9.2 of 2010 Edition);
--- Change the requirements for the explosion-proof certificate of Ex component
breathing and draining devices (see 10.9.4 of this Edition; 10.9.3 of 2010 Edition);
--- Increase the requirements for openings on the shell wall except for the
introduction device (see 11.8 of this Edition);
--- Add the requirements for copper or copper alloy enclosures used in explosive
environments containing acetylene (see 12.8 of this Edition);
---Add the options of the requirements that the introduction device should meet (see
13.1 of this Edition);
--- Add the requirements for non-threaded holes for Class I equipment (see 13.3 of
this Edition);
--- Increase the requirements for plugs and sockets to maintain the flameproof
performance during the arc extinguishing period and the power factor
requirements of the test circuit (13.6.4 of this Edition);
--- Change the conditions for determining the maximum surface temperature (see
Table 6 of this Edition; Table 5 of 2010 Edition);
--- Change the requirements of the test sample (see 15.1 of this Edition; Clause 15
of 2010 Edition);
--- Change the number of tests for the explosion pressure determination of Class-
IIC electrical equipment (see 15.2.2.2 of this Edition; 15.1.2.1 of 2010 Edition);
--- Change the test requirements for pressure overlap (see 15.2.2.4 of this Edition;
15.1.2.3 of 2010 edition);
--- Add the requirement of batch test instead of routine overpressure test (see
15.2.3.2 of this Edition);
---Add the requirement of adjusting the static pressure test pressure of small and
medium-sized equipment in the type test at low ambient temperature (see Table
8 of this Edition);
--- Change the test coefficient of increased pressure or test gap for Class-II C
electrical equipment (see Table 10 of this Edition; Table 10 of 2010 Edition);
--- Add the oxygen-enriched test gas test method for the internal ignition and non-
detonation test of Class-II C electrical equipment (see 15.3.3.4 of this Edition);
--- Add the test of the "dc" protection level device (see 15.5 of this Edition);
---Add the requirement for static pressure test pressure to be adjusted at low
ambient temperature in routine test (see Table 13 of this Edition);
--- Change the requirements of routine tests when using the dynamic pressure
method (see 16.1.3 of this Edition; 16.1.2 of 2010 Edition);
--- Add the routine test requirements for enclosures containing welded structures
(see 16.3 of this Edition);
--- Add the batch test method instead of the routine overpressure test (see 16.6 of
this Edition);
--- Change the requirements for the type test of non-metallic enclosures and non-
metallic parts of enclosures (see 19.3 of this Edition; 19.3 of 2010 Edition);
---Add the requirements for the mark protection level (see 20.1 of this Edition);
---Add the requirements of the instruction manual (see 20.4 of this Edition);
--- Add the conditions of non-detonation test for insulating sleeves (see C.2.1.4 of
this Edition);
--- Add the requirements of the restriction conditions in the Ex component insulating
sleeve explosion-proof certificate (see C.2.1.4 of this Edition);
--- Add the option of for the threaded joint surface of the lead-in device to meet the
requirements (see C.2.2.1 of this Edition);
--- Add the requirements for non-threaded joints of Class-I equipment (see C.2.2.2
of this Edition);
--- Add the requirements for metric Ex blanking element, NPT Ex blanking element
and non-threaded Ex blanking element (see C.2.3.2~C.2.3.4 of this Edition);
--- Increase the tightening torque requirements for thread size < 16mm (see Table
C.1 of this Edition);
--- Increase the tightening torque requirements of NPT threads (see Table C.2 of
this Edition);
--- Change the marking requirements of Ex component enclosures (see D.3.8 of
this Edition; D.3.8 of 2010 Edition);
--- Change the permitted primary batteries and storage batteries (see Table E.1,
Table E.2 of this Edition; and Table E.1 and Table E.2 of 2010 Edition);
--- Add battery requirements that do not require additional protection to prevent the
release of electrolytic gas during charging (see E.4.3 of this Edition);
--- Change the requirements for batteries that can be charged in a flameproof
enclosure (see E.5.1 of this Edition; E.5.1 of 2010 Edition);
--- Add additional requirements for flameproof enclosures with internal release
sources (see Annex G of this Edition);
--- Add the requirements for motors with flameproof enclosure "d" powered by the
inverter (see Annex H of this Edition).
This Document uses the redrafting method to modify and adopt IEC 60079-1:2014
Explosive Atmospheres – Part 1: Equipment Protection by Flameproof Enclosures “d”.
The technical differences and causes between this Document and IEC 60079-1:2014
are as follows:
--- Regarding normative references, this Document has made adjustments with
technical differences to adapt to China’s technical conditions. The adjustments
are reflected in Clause 2 "Normative References". The specific adjustments are
as follows:
Use GB/T 197 that modifies and adopts the international standard to replace
ISO 965-1 (see 5.3 of this Edition);
Use GB/T 1406.2 and GB/T 19148.2 that modify and adopt the international
standard to replace IEC 60061 (all parts) (see 18.3.1 of this Edition);
Use GB/T 2516 that modifies and adopts the international standard to
replace ISO 965-3 (see 5.3 of this Edition);
Use GB/T 3836.1 that modifies and adopts the international standard to
replace IEC 60079-0 (see Clause 1);
Use GB/T 3836.3 that modifies and adopts the international standard to
replace IEC 60079-7 (see 17.2.2 of this Edition);
Use GB/T 3836.4 that modifies and adopts the international standard to
replace IEC 60079-11 (see 13.6.2 of this Edition);
Use GB/T 3836.8 that modifies and adopts the international standard to
replace IEC 60079-15 (see 19.2 of this Edition);
Use GB/T 5163 that modifies and adopts the international standard to
replace ISO 2738 (see B.1.3 of this Edition);
Use GB/T 5249 that modifies and adopts the international standard to
replace ISO 4003 (see B.1.2 of this Edition);
Use GB/T 5250 that modifies and adopts the international standard to
replace ISO 4022 (see B.1.4 of this Edition);
Use GB/T 9364 (all parts) to replace IEC 60127 (all parts) (see E.4.1.2); the
consistency degree between each part of the two standards is as follows:
GB/T 9364.1-2015 Miniature Fuses - Part 1: Definitions for Miniature
Fuses and General Requirement for Miniature Fuse-Links (IEC 60127-
1:2006, MOD);
GB/T 9364.2-2018 Miniature Fuses - Part 2: Cartridge Fuse-Links (IEC
60127-2:2014, MOD);
GB/T 9364.3-2018 Miniature Fuses - Part 3: Sub-Miniature Fuse-Links
(IEC 60127-3:2015, MOD);
GB/T 9364.4-2016 Small Fuses - Part 4: Universal Module Fuse - Links
(UMF) - Perforated and Surface Mount (IEC 60127-4:2012, MOD);
GB/T 9364.5-2011 Miniature Fuses - Part 5: Guidelines for Quality
Assessment of Miniature Fuse-Links (IEC 60127-5:1988, IDT);
GB/T 9364.6-2001 Miniature Fuses - Part 6: Fuse-Holders for Miniature
Cartridge Fuse-Links (IEC 60127-6:1994, IDT);
GB/T 9364.7-2016 Small Fuses - Part 7: Small - Sized Fuse - Links for
Special Applications (IEC 60127-7:2013, MOD);
GB/T 9364.10-2013 Miniature Fuses - Part 10: User Guide for Miniature
Fuses (IEC 60127-10:2001, MOD).
--- Delete the zinc-mercury battery in Table E.1; and this type of battery has been
deleted from the primary battery table in GB/T 3836.1-2021.
--- Add the Annex I "Supplementary Provisions for Class-I Electrical Equipment" to
meet China's requirements for Class-I electrical equipment for mines.
This Document made the following editorial modifications:
--- In order to be consistent with the existing standard series, the name of this
Document is revised to Explosive Atmospheres - Part 2: Equipment Protection
by Flameproof Enclosures "d";
--- Add a description of the scope of application of the standard in the scope of
Clause 1;
--- Add a NOTE to 3.1 on the definition of flameproof type;
--- Add the letter symbol W to Table E.1; and delete the footnotes about letter
symbols;
--- Add an example of a supplementary mechanical fixing method for the bonded
joint surface (see Annex J of this Edition);
--- Include the technical corrigendum content of IEC 60079-1:2014/COR1:2018; and
the outer margins of the involved clauses are marked with a vertical double line
(‖);
--- Revise the bibliography.
Please note some contents of this Document may involve the patents. The issuing
agency of this Document shall not assume the responsibility to identify these patents.
This Document was proposed by China Electrical Equipment Industry Association.
This Document shall be under the jurisdiction of National Technical Committee on
Explosion Protected Electrical Apparatus of Standardization of China (SAC/TC 9).
Drafting organizations of this Document: Nanyang Flameproof Electrical Research
Institute Co., Ltd.; Shanghai Inspection and Testing Institute of Instruments and
Automation Systems Co., Ltd.; Shanghai Institute of Quality Inspection and Technical
Research; CCTEG Shenyang Research Institute; Warom Technology Incorporated
Company; Shenyang Electric Appliances Transmission Research Institute Co., Ltd.;
Hanwei Electronics Group Corporation; Zhongmei Scientific Industry Group
Chongqing Design Institute Co., Ltd.; Wolong Electric Nanyang Explosion Protection
Explosive Atmospheres – Part 2: Equipment
Protection by Flameproof Enclosures “d”
1 Scope
This Document contains specific requirements for the construction and testing of
electrical equipment with the type of protection flameproof enclosure “d”, intended for
use in explosive gas atmospheres.
This Document is applicable to electrical equipment protected by flameproof enclosure
"d" intended to be used in explosive gas atmospheres.
This Document supplements and modifies the general requirements of GB/T 3836.1.
Where a requirement of this Document conflicts with a requirement of GB/T 3836.1,
the requirement of this Document will take precedence.
2 Normative References
The provisions in following documents become the provisions of this Document
through reference in this Document. For the dated documents, only the versions with
the dates indicated are applicable to this Document; for the undated documents, only
the latest version (including all the amendments) is applicable to this Document.
GB/T 197 General Purpose Metric Screw Threads – Tolerances (GB/T 197-2018,
ISO 965-1:2013, MOD)
GB/T 1406.2 Types and Dimensions of Lamp Caps - Part 2: Pin Lamp Caps (GB/T
1406.2-2008, IEC 60061-1:2005, MOD)
GB/T 2516 General Purpose Metric Screw Threads - Limit Deviations (GB/T
2516-2003, ISO 965-3:1998, MOD)
GB/T 3836.1 Explosive Atmospheres - Part 1: Equipment - General Requirements
(GB/T 3836.1-2021, IEC 60079-0:2017, MOD)
GB/T 3836.3 Explosive Atmospheres - Part 3: Equipment Protection by Increased
Safety “e” (GB/T 3836.3-2021, IEC 60079-7:2015, MOD)
GB/T 3836.4 Explosive Atmospheres - Part 4: Equipment Protection By Intrinsic
Safety “i” (GB/T 3836.4-2021, IEC 60079-11:2011, MOD)
GB/T 3836.8 Explosive Atmospheres - Part 8: Equipment Protection by Type of
Protection “n” (GB/T 3836.8-2021, IEC 60079-15:2017, MOD)
GB/T 5163 Sintered Metal Materials, Excluding Hard Metals - Permeable Sintered
Metal Materials - Determination of Density, Oil Content, and Open Porosity (GB/T
5163-2006, ISO 2738:1999, IDT)
GB/T 5249 Permeable Sintered Metal Materials - Determination of Bubble Test
Pore Size (GB/T 5249-2013, ISO 4003:1977, IDT)
GB/T 5250 Permeable Sintered Metal Materials - Determination of Fluid
Permeability (GB/T 5250-2014, ISO 4022:1987, IDT)
GB/T 9364 (all parts) Miniature Fuses [IEC 60127 (all parts)]
GB/T 19148.2 Types and Dimensions of Lamp Holders - Part 2: Pin Lamp Holders
(GB/T 19148.2-2008, IEC 60061-2:2004, MOD)
ANSI/ASME B1.20.1 Pipe Threads, General Purpose (Inch)
3 Terms and Definitions
For the purposes of this Document, the terms and definitions given in GB/T 3836.1 and
the following apply.
NOTE: Additional definitions applicable to explosive atmospheres can be found in GB/T
2900.35.
3.1 Flameproof enclosure “d”
Enclosure in which the parts which can ignite an explosive gas atmosphere are placed
and which can withstand the pressure developed during an internal explosion of an
explosive mixture, and which prevents the transmission of the explosion to the
explosive gas atmosphere surrounding the enclosure.
NOTE: "Flameproof type" is defined as: an explosion-proof type of electrical equipment whose
shell can withstand the explosion of the explosive mixture that enters the shell through any joint
surface or structural gap of the shell causing no damage to the shell; and it shall not cause the
ignition of explosive gas environment formed by one or multiple gases or vapours. Both have
the same meaning.
3.2 Volume
Total internal volume of the enclosure.
NOTE 1: For enclosures in which the contents are essential in service, the volume to be
......
ICS 29.260.20
K35
National Standard of the People's Republic of China
Replace GB 3836.2-2000
Explosive Atmospheres-
Part 2. Equipment Protection by Flameproof
Enclosures "d"
(IEC 60079-1 .2007, MOD)
ISSUE ON. AUGUST 9, 2010
IMPLEMENTED ON. AUGUST 1, 2011
Issued by General Administration of Quality Supervision, Inspection and Quarantine
of the People's Republic of China
Standardization Administration of the People's Republic of China
Contents
Scope ... I
2 Nonnative References ... 1
3 Tenns and Definitions ... 2
4 Equipment Grouping and Temperature Classification ... 4
5 Flameproof Joints ... 5
6 Cemented Joints ... 14
7 Operating Rods... 14
8 Supplementary Requirements for Shafts and Bearings ... 14
9 Light-trans1nitting Parts ... 17
10 Breathing and Draining Devices Which Form Pa11 of a Flameproof Enclosure ... 17
11 Fasteners, Associated Holes and Blanking Elements ... 23
12 Materials and Mechanical Strength of Enclosures-Materials Inside the Enclosures ... 25
13 Entries for Flameproof Enclosures ... 25
14 Verification and Tests ... 27
15 Type Tests ... 28
16 Routine Tests ... 3 7
17 Switchgear for Group I ... 39
18 La1npholders and Lamp Caps ... 40
19 Non-metallic Enclosures and Non-metallic Pa11s of Enclosures ... 40
20 Marking ... 41
Appendix A (Normative) Additional Requirements for Crimped Ribbon Elements and Multiple Screen
Elements of Breathing and Draining Devices ... 43
Appendix B (Normative) Additional Requirements for Elements, with Non-measurable Paths, of
Breathing and Draining Devices ... 44
Appendix C (Normative) Additional Requirements for Flameproof Entry Devices ... 46
Appendix D (Normative) Empty Flameproof Enclosures as Ex Components ... 53
Appendix E (Normative) Cells and Batteries Used in Flameproof"d" Enclosures ... 56
Appendix F (Normative) Supplementary Provisions for Electrical Equipment of Group I ... 61
Appendix G (Informative) Mechanical Properties for Screws and Nuts ... 62
Appendix H (Informative) Introduction of an Alternative Risk Assessment Method Encompassing
"Equipment Protection Levels" for Ex Equipment ... 63
Foreword
All technical contents of this part are compulsory.
GB 3836 "Explosive Atmospheres" is divided into several parts.
--Part 1. Equipment-General Requirements;
--Part 2. Equipment Protection by Flameproof Enclosures "d";
--Part 3. Equipment Protection by Increased Safety "e";
- - Part 4. Equipment Protection by Intrinsic Safety "i";
--Part 5. Pr~ssurized Enclosures "p";
--Part 6. Oil-immersion "o";
--Part 7. Power Filling "q";
--Part 8. Type of Protection "n";
- -Part 9. Encapsulation "m";
--Patt 11. Method of Test for Ascertainment of Maximum Experimental Safe Gap;
- -Pait 12. Classification of Gases or Vapours with Air according to Their Maximum
Experimental Safe Gaps and Minimum Igniting Current
--Patt 13. Repair and Overhaul for Apparatus Used in Explosive Gas Atmospheres;
--Patt 14. Classification of Hazardous Areas;
--Part 15. Electrical Installations in Hazardous Areas (other than Mines);
- -Part 16. Inspection and Maintenance of Electrical Installation (other than Mines);
--Part 17. Construction and Use of Rooms or Buildings Protected by Pressurization;
--Part 18. Intrinsically Safe System;
- - Patt 19. Fieldbus Intrinsically Safe Concept (FISCO);
--Part 20. Equipment with Equ ipment Protection Level (EPL) Ga.
This part is part 2 of GB 3836 series and corresponding to IEC 60079-1.2007 "Explosive
Atmospheres-Pait 1. Equipment Protection by Flameproof Enclosures "d" (English edition).
This part is modified in relation to IEC 60079-1 .2007.
Main difference between this part and IEC 60079-1 .2007 is as follows.
Add Appendix F (Normative) "Supplementary Provisions for Electrical Equipment of Group I"
and consider the relevant requirements of IEC 60079-1 Ed.7.0 CD, 15.1 .2.
This part replaces GB 3836.2-2000 "Electrical Apparatus for Explosive Gas Atmospheres-Part
2. Flameproof enclosure "d".
Explosive Atmospheres-
Part 2. Equipment Protection by Flameproof Enclosures "d"
1 Scope
This part of GB 3 836 contains specific requirements for the construction and testing of electrical
equipment with the type of protection flameproof enclosure "d", intended for use in explosive gas
atmospheres.
This part supplements and modifies the general requirements of GB 3836.1- 2010. Where a
requirement of this part conflicts with a requirement of GB 3836.1 - 201 0, the requ irement of this part
will take precedence.
Note. Equipment protection by flameproof enclosures ''d" provides Equipment Protection Level (EPL) Gb. For funher information, see
Appendix H.
2 Normative References
The foll owing standards contain provisions which,-reference in this part of GB 3836, constitute
provisions of this part. For dated reference, subsequent amendments to (excluding correction to), or
revisions of, any of these publications do not apply. However, a ll paities coming to an agreement
according to this patt are encouraged to study whether the latest edition of these documents is
applicable. For undated references, the latest edition of the normative document is applicable to this
patt.
GB/T 197- 2003 "General Purpose Metric Screw Threads-Tolerances" (ISO 965-1 . 1998, MOD)
GB 755-2008 "Rotating Electrical Machines-Rating and Performance" (IEC 60034-1 .2004,
IDT)
GB/T 2516-2003 "General Purpose Metric Screw Threads-Limit Devications" (ISO 965-3 .
1998, MOD)
GB 2893-200 I "Safety Colours" (neq ISO 3864. 1984)
GB 2894-2008 " Safety Signs and Guideline for the Use"
GB/T 2900.35- 2008 "Electrotechnical Terminology-Electrical Apparatus for Explosive Atmo-
spheres"(IEC 60050 ( 426).2008, IDT)
GB 3101 - 1993 "General Principles Concerning Quantities, Units and Symbols" ( eqv ISO 3 1-0.
1992)
GB 3836.1 -2010 "Explosive Atmospheres-Part I . Equ ipment-General Requirements" (IEC
60079-0.2007, MOD)
GB 3836.3- 20 I 0 "Explosive Atmospheres-Part 3. Equipment Protection by Increased Safety
e" (IEC 60079-7.2006, IDT)
GB 3836.4- 20 I 0 "Explosive Atmospheres- Part 4. Equipment Protection by Intri nsic Safety i"
(IEC 60079-11 .2006, MOD)
GB 3836.11-2008 "Explosive Atmospheres-Part 11 . Equipment Protection by Flameproof
Enclosures cl-Method of Test for Ascertainment of Maximum Experimental Safe Gap" (IEC 60079-1
-1 .2002, IDT)
GB 3836.15-2000 "Electrical Apparatus for Explosive Gas Atmospheres-Patt 15 . Electrical
Installations in Hazardous Areas (Other than Mines) (eqv IEC 60079-14. 1996)
GB/T 4207-2003 "Method for Determining the Comparative and the Proof Tracking Indices of
Solid Insulating Materials under Moist Conditions" (IEC 60112. 1979, IDT)
GB 4208-2008 "Degrees of Protection Provided by Enclosure (IP Code)" (IEC 60529.2001 ,
IDT)
GB/T 5163-2006 "Sintered Metal Materials, excluding Hardmetals-Permeable Sintered Metal
Materials- DetermiQation of Density, Oil Content, and Open Porosity" (ISO 2738.1999, IDT)
GB/T 5169.16-2002 "Fire Hazard Testing for Electric and Electronic Products-Part 16. Test
Flames-SOW Horizontal and Vertical Flame Test Methods" (IEC 60695-1 1-10. 1999, IDT)
GB/T 5249-1985 "Permeable Sintered Metal Materials-Determination of Bubble Test Pore
Size" ( eqv ISO 4003. 1977)
GB/T 5250- 1993 "Permeable Sintered Metal Materials-Determination of Fluid Permeability"
( eqv ISO 4022. 1987)
GB/T 8897.1-2003 "Primary Batteries-Patt 1. General" (IEC 60086-1.2000, IDT)
GB 9364 "Miniature Fuses (All Parts)" (IEC 60127, IDT)
GB/T 13259-2005 "High Pressure Sodium Lamps" (neq IEC 60662.2002)
GB/T 15142-2002 "Ceneral Specificatoin for Vented Nickel-cadmium Prismatic Rechargeable
Single Cells" (IEC 60623 . 1990, MOD)
GB/T 21098-2007 "Lamp Caps and Holders Together with Gauges for the Control of Safety and
Interchangeability (All Parts) (IEC 60061 , IDT)
GB/T 22084.1-2008 "Secondary Cells and Batteries Containing Alkaline or Other Non-acid
Electrolytes-Portable Sealed Rechargeable Single Cells-Part 1. Nickel-cadmium" (IEC 61951-1 .
2003, IDT)
GB/T 22084.2-2008 "Secondary Cells and Batteries Containing Alkaline or Other Non-acid
Electrolytes- Po1table Sealed Rechargeable Single Cells-Pait 2. Nickel-metal Hydride" (IEC 6195 1
-2.2003, IDT)
ISO 185. 1988 "Grey Cast Iron-Classification"
ANSI/ ASME B 1.20.1-1983 (R2001) "Pipe Threads, General Purpose (Inch)"
3 Terms and Definitions
For the purposes of this part, the following terms and definitions, in addition to those given in
GB 3836.1-2010, apply.
Note. Additional definitions applicable to explosive atmospheres can be found in GB!T 2900.35-2008.
3.1 Flameproof Enclosure "d"
Enclosure in which the parts which ·can ignite an explosive gas atmosphere are placed and which
can withstand the pressure developed during an internal explosion of an explosive mixture, and which
prevents the transmission of the explosion to the explosive gas atmosphere formed by one or more
gases or vapors.
3.2 Volume
Total internal volume of the enclosur...
......
| Standard ID | GB/T 3836.2-2021 (GB/T3836.2-2021) | | Description (Translated English) | Explosive atmospheres -- Part 2: Equipment protection by flameproof enclosures ''d'' | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | K35 | | Classification of International Standard | 29.260.20 | | Word Count Estimation | 74,793 | | Date of Issue | 2021-10-11 | | Date of Implementation | 2022-05-01 | | Older Standard (superseded by this standard) | GB 3836.2-2010 | | Drafting Organization | Nanyang Explosion-proof Electrical Research Institute Co., Ltd., Shanghai Instrumentation Automatic Control System Inspection and Testing Institute Co., Ltd., Shanghai Institute of Quality Supervision and Inspection Technology, Coal Science Group Shenyang Research Institute Co., Ltd., Huarong Technology Co., Ltd., Shenyang Electric Transmission Research Institute ( Co., Ltd.), Hanwei Technology Group Co., Ltd., China Coal Science and Industry Group Chongqing Research Institute Co., Ltd., Wolong Electric Nanyang Explosion-proof Group Co., Ltd., Gulf Safety Technology Co., Ltd., Beijing Sanying United Petroleum Technology Co., Ltd., Anhui Tiankang (Group) Co., Ltd., New Liming Technology Co., Ltd., Helong Explosion-proof Electric Co., Ltd., Feice Explosion-proof Electric Co., Ltd., Jiamusi Electric Co., Ltd., Shenzhen Te'an Electronics Co., Ltd. | | Administrative Organization | National Standardization Technical Committee for Explosion-proof Electrical Equipment (SAC/TC 9) | | Regulation (derived from) | National Standard Announcement No. 12 of 2021 | | Proposing organization | China Electrical Equipment Industry Association | | Issuing agency(ies) | State Administration for Market Regulation, National Standardization Administration | | Standard ID | GB 3836.2-2010 (GB3836.2-2010) | | Description (Translated English) | Explosive atmospheres. Part 2: Equipment protection by flameproof enclosures d [Quasi-Official / Academic version - scanned PDF, translated by Standard Committee / Research Institute in China] | | Sector / Industry | National Standard | | Classification of Chinese Standard | K35 | | Classification of International Standard | 29.260.20 | | Word Count Estimation | 55,537 | | Date of Issue | 2010-08-09 | | Date of Implementation | 2011-08-01 | | Older Standard (superseded by this standard) | GB 3836.2-2000 | | Quoted Standard | GB 755-2008; GB/T 2516-2003; GB 2893-2001; GB 2894-2008; GB/T 2900.35-2008; GB 3101-1993; GB 3936.1-2010; GB 3836.3-2010; GB 3836.4-2010; GB 3836.11-2008; GB 3836.15-2000; GB/T 4207-2003; GB 4208-2008; GB/T 5163-2006; GB/T 5169.16-2002; GB/T 5249-1985; GB/T 5250-1993; GB/T 8897.1-2003; GB 9364; GB/T 13259-2005; GB/T 15142-2002; GB/T 21098-2007; GB/T 22084.1-2008; GB/T 22084.2-2008; ISO 185-1988; ANSI/ASME B1.20.1-1983 (R2001); GB/T 197-2003 | | Adopted Standard | IEC 60079-1-2007, MOD | | Drafting Organization | Explosion Protection Electric Institute | | Administrative Organization | National Standardization Technical Committee explosion-proof electrical equipment | | Regulation (derived from) | Announcement of Newly Approved National Standards No. 3, 2010 (No. 158 overall) | | Proposing organization | China Electrical Equipment Industry Association | | Issuing agency(ies) | Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China; Standardization Administration of China | | Summary | This Chinese standard relates to flameproof enclosure "d" protected electrical equipment for explosive gas atmospheres construction and testing requirements for. This standard is GB3836. 1-2010 General requirements for additions and modifications. If the requirements of this standard and GB3836. 1-2010 requirement of a conflict between the requirements of this standard shall prevail. | | Standard ID | GB 3836.2-2000 (GB3836.2-2000) | | Description (Translated English) | Electrical apparatus for explosive gas atmospheres-Part 2: Flameproof enclosure d | | Sector / Industry | National Standard | | Classification of Chinese Standard | K35 | | Classification of International Standard | 29.260.20 | | Word Count Estimation | 35,337 | | Date of Issue | 2000/1/3 | | Date of Implementation | 2000/8/1 | | Older Standard (superseded by this standard) | GB 3836.2-1983 | | Adopted Standard | IEC 60079-1-1990, MOD; IEC 60079-1 AMD.1-1993, MOD | | Regulation (derived from) | Announcement of Newly Approved National Standards 2010 No. (No. 158 overall) 3 | | Proposing organization | National Machinery Industry Bureau | | Issuing agency(ies) | State Quality and Technical Supervision | | Summary | This Standard specifies the structural requirements for explosive gas atmospheres flameproof electrical equipment, inspection and testing. This Standard is applicable to metals and flameproof enclosure and enclosure components made of non-metallic materials. |
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