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GB/T 3836.30-2021 English PDF (GBT3836.30-2021)

GB/T 3836.30-2021 English PDF (GBT3836.30-2021)

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GB/T 3836.30-2021: Explosive atmospheres -- Part 30: Equipment and components in explosive atmospheres in underground mines
GB/T 3836.30-2021
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 29.260.20
CCS K 35
Explosive Atmospheres - Part 30: Equipment and
Components in Explosive Atmospheres in Underground
Mines
(ISO/IEC 80079-38:2016, Explosive Atmospheres - Part 38: Equipment and
Components in Explosive Atmospheres in Underground Mines, MOD)
ISSUED ON: OCTOBER 11, 2021
IMPLEMENTED ON: MAY 1, 2022
Issued by: State Administration for Market Regulation;
Standardization Administration of the People’s Republic of China.
Table of Contents
Foreword ... 4
Introduction ... 10
1 Scope ... 14
2 Normative References ... 15
3 Terms, Definitions and Abbreviations ... 16
4 Requirements for Equipment (machine) and Components ... 20
4.1 General Rules ... 20
4.2 Ignition Hazard Assessment ... 21
4.3 Non-electrical Equipment and Components ... 23
4.4 Electrical Equipment and Components ... 23
5 Additional Requirements for Specific Equipment and Components ... 28
5.1 Cutting and Stripping Equipment ... 28
5.2 Rope Haulages for Level and Inclined Transport ... 30
5.3 Fans ... 30
5.4 Internal Combustion Engines ... 32
5.5 Air Compressors ... 33
5.6 Drilling Equipment and Components ... 33
5.7 Brakes ... 33
5.8 Traction Batteries, Starter Batteries and Vehicle Lighting Batteries ... 34
5.9 Optical Fibers Used on Machines and Electromagnetic Radiation from Components on
Machines ... 35
5.10 Gas Monitoring Systems ... 36
6 Fire Protection ... 36
6.1 General ... 36
6.2 Non-metallic Materials ... 37
6.3 Hydraulic and Pneumatic Equipment ... 37
6.4 Requirements for Cable-reeled Equipment ... 39
6.5 Fire Prevention of Electric Cables as Part of the Machine ... 40
6.6 Conveyer Belt ... 40
7 Information for Use ... 41
7.1 Warnings ... 41
7.2 Instruction Manual ... 41
8 Marking ... 41
Appendix A (normative) Tests for Surface Protective Coating for Group I Hand Tools
of EPL Mb ... 43
Appendix B (informative) Guidance on Potential Risks for Converter-fed Motors ... 46
Appendix C (informative) Example of an Ignition Hazard Assessment for a Conveyor
Belt Intended for Use in a Coal Mine ... 47
Appendix D (informative) Example of an Ignition Hazard Assessment for a Shearer
Loader Intended for Use in a Potentially Explosive Atmosphere of a Coal Mine ... 52
Appendix E (normative) Ignition Sources ... 60
Bibliography ... 67
Foreword
This Document was drafted in accordance with the rules in GB/T 1.1-2020 Directives for
Standardization - Part 1: Rules for the Structure and Drafting of Standardizing Documents.
This Document is Part 30 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 Vapor 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 adopts the re-drafting method in the modification and adoption of ISO/IEC
80079-38:2016 Explosive Atmospheres - Part 38: Equipment and Components in Explosive
Atmospheres in Underground Mines.
This Document makes the following structural adjustments:
---Due to the deletion of the term 3.1 “Protection against Firedamp Explosions” in ISO/IEC
80079-38:2016, the sequence of other terms is adjusted;
---The sequence of appendixes is adjusted. The previous Appendix E is adjusted to
Appendix A; the previous Appendix D is adjusted to Appendix B; the previous
Appendix A is adjusted to Appendix C; the previous Appendix B is adjusted to
Appendix D; the previous Appendix C is adjusted to Appendix E.
In comparison with ISO/IEC 80079-38:2016, the technical differences and the causes for these
differences are as follows:
---In terms of Normative References, this Document makes adjustments with technical
differences to adapt to the technical conditions of China. The adjustments are
intensively reflected in Chapter 2 “Normative References”. See the specific
adjustments below:
 GB/T 3685, which modifies and adopts international standard, is used to replace
ISO 340 (see 6.2);
 GB/T 3836.1, which modifies and adopts international standard, is used to replace
IEC 60079-0 (see Chapter 1);
 GB/T 3836.18, which modifies and adopts international standard, is used to
replace IEC 60079-25 (see 4.4.6.3);
 GB/T 3836.28-2021, which modifies and adopts international standard, is used to
replace ISO 80079-36:2016 (see Chapter 1);
 GB/T 3836.29-2021, which modifies and adopts international standard, is used to
replace ISO 80079-37:2016 (see 5.3.1.4);
 GB/T 4208, which equivalently adopts international standard, is used to replace
IEC 60529 (see 5.3.2);
 GB/T 5226.1, which equivalently adopts international standard, is used to replace
IEC 60204-1 (see 4.4.3.1);
 GB 5226.3, which equivalently adopts international standard, is used to replace
IEC 60204-11 (see 4.4.3.1);
 GB/T 8642, which modifies and adopts international standard, is used to replace
ISO 14916 (see A.2);
 GB/T 9239.1, which equivalently adopts international standard, is used to replace
ISO 1940-1 (see 5.3.1.6);
 GB/T 16855.1, which equivalently adopts international standard, is used to replace
ISO 13849-1 (see 5.1.1);
 GB/T 18380....
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