GB/T 3836.30-2021 PDF English
US$635.00 · In stock · Download in 9 secondsGB/T 3836.30-2021: Explosive atmospheres - Part 30: Equipment and components in explosive atmospheres in underground mines Delivery: 9 seconds. True-PDF full-copy in English & invoice will be downloaded + auto-delivered via email. See step-by-step procedureStatus: Valid
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivery | Name of Chinese Standard | Status |
| GB/T 3836.30-2021 | English | 635 |
Add to Cart
|
0-9 seconds. Auto-delivery
|
Explosive atmospheres - Part 30: Equipment and components in explosive atmospheres in underground mines
| Valid |
Excerpted PDFs (Download full copy in 9 seconds upon purchase)PDF Preview: GB/T 3836.30-2021
GB/T 3836.30-2021: Explosive atmospheres - Part 30: Equipment and components in explosive atmospheres in underground mines
---This is an excerpt. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.), auto-downloaded/delivered in 9 seconds, can be purchased online: https://www.ChineseStandard.net/PDF.aspx/GBT3836.30-2021
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 18380.11, GB/T 18380.12 and GB/T 18380.13, which equivalently adopt
international standard, are used to replace IEC 60332-1 (all parts) (see 6.5);
GB 28526, which equivalently adopts international standard, is used to replace
IEC 62061 (see 5.1.1);
GB/T 31523.1, which modifies and adopts international standard, is used to
replace ISO 7010 (see 7.1);
GB/T 34560.5, which modifies and adopts international standard, is used to
replace ISO 630-5 (see 5.3.1.1);
SH/T 0785, which modifies and adopts international standard, is used to replace
ISO 14935 (see 6.3);
ISO 15029-2 is used to replace ISO/TS 15029-2 (see 6.3);
The reference of GB/T 13813 is added (see 5.3.1).
---The term “Protection against Firedamp Explosions”, which does not appear in the main
text, is deleted.
---The situation in 4.4.3.1 that the setting of the overload tripping device may be above the
nominal current of the motor is deleted. The original intension of deleting the content
is to loosen the range of overcurrent protection through temperature protection.
However, overload protection and temperature protection are two different types of
protection. Although overload will cause temperature rise, which may further trigger
the act of temperature protection. If the two types of protection cooperate with each
other, the setting will be difficult.
---In 4.4.3.1 “Overload Protection”, the requirement of complying with the relevant
conditions when the certificate No. is followed by the symbols “U” and “X” is added.
That is because the equipment with symbols “U” and “X” after the certificate No. has
special requirements for relevant conditions.
---In 4.4.3.2, the requirement that the short-circuit protection shall comply with the
requirements of the corresponding explosion-proof type is added to “Short-circuit
Protection”. That is because if the short-circuit protection is externally set, it will
involve the selection of explosion-proof type.
---4.4.3.3 “Electric Leakage Protection” is added to comply with China’s regulations on
underground equipment.
---In 5.1.2.2 “Water Spray Systems”, the installation of water spray systems and
monitoring of the minimum water pressure and / or minimum water flow are modified
into the installation of internal and external water spray systems and monitoring of the
minimum water pressure and water flow, so as to adapt to the current application of
domestic equipment and the on-site working conditions, and to ensure that the water
spray systems have the desired effect.
---In 5.2 “Rope Haulages for Level and Inclined Transport”, the number of laps of rope is
modified from at least 2.5 to at least 3 to facilitate the measurement.
---In 5.3.1.3 “Inlet and Outlet Cones”, the requirement that inlet cones shall be constructed
to a tolerance of 1.5 mm on diameter is deleted, because the tolerance of the inlet
cones has basically no effect on the product performance.
---In 5.3.1.4 “Impellers and Impeller Rings”, “impellers shall be able to withstand a test
run at a minimum of 1.15 times the maximum operational rotating speed for at least 60
seconds” is respectively modified into 1.1 times and 120 s to comply with the
stipulations of relevant Chinese standards.
---In 5.3.1.5 “Clearance”, the requirement that the clearance shall not be less than 1 mm
under any circumstance is added, so as to comply with the stipulations of GB/T 3836.1.
---In 5.3.1.8 “Materials”, Table 1 “Combination of Materials” is deleted; the requirement
for the materials used for the rubbing track and the impeller is modified from complying
with Table 1 into the usage of materials with the least ignition hazard from friction
sparks and qualified in the inspection. That is because Table 1 does not consider the
safety of the impeller impacted by foreign objects. If the matching materials for the
rubbing track and the impeller stipulated in Table 1 are used, it is equivalent to
loosening the application of aluminum alloys. Meanwhile, the requirement for the
clearance between the impeller and the casing is modified from not less than the value
provided in Table 1 to not less than 2.5 mm. That is because in China, coal mine fans
have such requirements for the clearance of extraction fans, and what is stipulated in
Table 1 is too small and unsafe, and also not easy to achieve,
---In 5.3.2 “Other Fans”, the ingress protection of the inlet and outlet of the fan is
respectively modified into IP20 and IP10 to be consistent with GB/T 3836.1.
---In 5.10 “Gas Monitoring Systems”, the requirement of complying with the relevant
regulations on the state mines is added to comply with China’s regulations on mines.
---In Appendix A, the test gas of the impact test is modified into the explosive mixture of
methane oxygen-enriched air, so as to comply with the stipulations of relevant Chinese
standards.
This Document makes the following editorial modifications.
---In order to maintain consistent with the current standard series, the title of the Document
is modified into Explosive Atmospheres - Part 30.Equipment and Components in
Explosive Atmospheres in Underground Mines;
---A NOTE regarding the situation of exceeding the range of the standard atmospheric
conditions is added to the Scope;
---A NOTE regarding Appendix B is added to 4.1;
---A suggestive NOTE regarding additional protective measures is added to 4.4.3.2;
---The NOTE regarding the international standard for internal combustion engines for
explosive atmospheres is deleted from 5.4;
---The reference standard in NOTE 2 of 5.4 is modified;
---The NOTE in 5.10 is modified;
---GB/T 3836.2, flameproof and intrinsically safe type is added to the evaluation of
electrical equipment in C.4;
---The Bibliography is modified.
Please be noted that certain content of this Document may involve patents. The institution
issuing this Document does not undertake the responsibility of identifying these patents.
This Document was proposed by China Electrical Equipment Industry Association.
This Document shall be under the jurisdiction of National Technical Committee 9 on Explosion-
proof Electrical Equipment of Standardization Administration of China (SAC/TC 9).
The drafting organizations of this Document. Nanyang Explosion-proof Electrical Research
Institute Co., Ltd.; China Energy Investment Co., Ltd.; China Energy Group Ningxia Coal Co.,
Ltd.; North China University of Technology; CCTEG Chongqing Research Institute; Wolong
Electric Nanyang Explosion Protection Group Co., Ltd.; CCTEG Shenyang Research Institute;
CCTEG Changzhou Research Institute; Hanwei Technology Group Co., Ltd.
The main drafters of this Document. Zhang Gang, Meng Feng, Wang Jun, Zhong Liyun, Zhu
Zongbao, Meng Qinghai, Zhou Weifeng, Zhang Hao, Shi Lei, Chen Bin, Wang Chongyang.
1 Scope
This Document specifies the explosion-proof requirements for the design, structure, evaluation
and usage information (maintenance, repair and marking) of equipment that can be used in
independent or combined operation.
2 Normative References
The contents of the following documents constitute indispensable clauses of this Document
through the normative references in the text. In terms of references with a specified date, only
versions with a specified date are applicable to this Document. In terms of references without
a specified date, the latest version (including all the modifications) is applicable to this
Document.
3 Terms, Definitions and Abbreviations
What is defined in GB/T 3836.1, and the following terms and definitions are applicable to this
Document.
4 Requirements for Equipment (machine) and Components
All equipment and all its components shall be subject to hazard assessment in accordance with
GB/T 3836.28-2021, and a formal hazard assessment report shall be formed.
The ignition capability of the ignition sources shall be compared with the ignition
characteristics of flammable substances.
5 Additional Requirements for Specific Equipment and Components
Stripping machines, for example, ploughs, shall have an interlock. Before the water spray
system operates, the interlock shall prevent it from starting. The location of the water spray
system may be located on or above the stripping head, or applied to specific parts of the mining
working surface.
6 Fire Protection
For machines equipped with cable reels, cable reels and flexible cables form part of the machine.
This type of machines shall comply with the following requirements.
7 Information for Use
In addition to the markings required in Chapter 8, the manufacturer shall state the equipment
category and EPL, as well as the following information.
The manufacturer shall state the following information.
8 Marking
Non-electrical equipment that complies with the supplementary requirements of GB/T 3836.28-
2021 in this Document shall be marked in accordance with GB/T 3836.28-2021.There are no
supplementary requirements for the adopted explosion-proof type.
......
Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al.
Tips & Frequently Asked QuestionsQuestion 1: How long will the true-PDF of English version of GB/T 3836.30-2021 be delivered?Answer: The full copy PDF of English version of GB/T 3836.30-2021 can be downloaded in 9 seconds, and it will also be emailed to you in 9 seconds (double mechanisms to ensure the delivery reliably), with PDF-invoice. Question 2: Can I share the purchased PDF of GB/T 3836.30-2021_English with my colleagues?Answer: Yes. The purchased PDF of GB/T 3836.30-2021_English will be deemed to be sold to your employer/organization who actually paid for it, including your colleagues and your employer's intranet. Question 3: Does the price include tax/VAT?Answer: Yes. Our tax invoice, downloaded/delivered in 9 seconds, includes all tax/VAT and complies with 100+ countries' tax regulations (tax exempted in 100+ countries) -- See Avoidance of Double Taxation Agreements (DTAs): List of DTAs signed between Singapore and 100+ countriesQuestion 4: Do you accept my currency other than USD?Answer: Yes. www.ChineseStandard.us -- GB/T 3836.30-2021 -- Click this link and select your country/currency to pay, the exact amount in your currency will be printed on the invoice. Full PDF will also be downloaded/emailed in 9 seconds. How to buy and download a true PDF of English version of GB/T 3836.30-2021?A step-by-step guide to download PDF of GB/T 3836.30-2021_EnglishStep 1: Visit website https://www.ChineseStandard.net (Pay in USD), or https://www.ChineseStandard.us (Pay in any currencies such as Euro, KRW, JPY, AUD).
Step 2: Search keyword "GB/T 3836.30-2021".
Step 3: Click "Add to Cart". If multiple PDFs are required, repeat steps 2 and 3 to add up to 12 PDFs to cart.
Step 4: Select payment option (Via payment agents Stripe or PayPal).
Step 5: Customize Tax Invoice -- Fill up your email etc.
Step 6: Click "Checkout".
Step 7: Make payment by credit card, PayPal, Google Pay etc. After the payment is completed and in 9 seconds, you will receive 2 emails attached with the purchased PDFs and PDF-invoice, respectively.
Step 8: Optional -- Go to download PDF.
Step 9: Optional -- Click Open/Download PDF to download PDFs and invoice.
See screenshots for above steps: Steps 1~3 Steps 4~6 Step 7 Step 8 Step 9
|