GB/T 3836.26-2019Explosive atmospheres -- Part 26: Electrostatic hazards -- Guidance (English PDF)

Foreword

The Explosive Environment is divided into several sections.

--- Part 1. General requirements for equipment;

--- Part 2. Equipment protected by flameproof enclosure "d";

--- Part 3. Equipment protected by increased safety "e";

--- Part 4. Equipment protected by intrinsically safe "i";

--- Part 5. Equipment protected by positive pressure housing "p";

--- Part 6. Equipment protected by liquid immersion "o";

--- Part 7. Equipment protected by sand-filled "q";

--- Part 8. Equipment protected by "n";

--- Part 9. Equipment protected by potting type "m";

--- Part 11. Classification test methods and data of gas and vapor substance characteristics;

--- Part 12. Test method for characteristics of flammable dust substances;

--- Part 13. Equipment repair, overhaul, repair and transformation;

--- Part 14. Classification of places for explosive gas environments;

--- Part 15. Design, selection and installation of electrical devices;

--- Part 16. Inspection and maintenance of electrical installations;

--- Part 17. Equipment protected by positive pressure room "p" and artificially ventilated room "v";

--- Part 18. Intrinsically Safe Electrical System;

--- Part 19. Fieldbus Intrinsic Safety Concept (FISCO);

--- Part 20. Equipment with protection level (EPL) of Ga level;

--- Part 21. Application of equipment production quality system;

--- Part 22. Protective measures for optical radiation equipment and transmission systems;

--- Part 23. Class I EPLMa equipment for gas and/or coal dust environments;

--- Part 24. Equipment protected by special type "s";

--- Part 25. Process sealing requirements between flammable process fluids and electrical systems;

--- Part 26. Guidelines for electrostatic hazards;

--- Part 27. Static electricity hazard test;

This section is Part 26 of "Explosive Environments".

This section is drafted in accordance with the rules given in GB/T 1.1-2009.

This part uses the redrafting method to modify and adopt IEC TS60079-32-1..2013 "Explosive Environment Part 32-1. Electrostatic Hazard

guide".

The technical differences between this part and IEC TS60079-32-1..2013 and their causes are as follows.

--- Regarding the normative references, this section has made adjustments with technical differences in order to apply China's technical conditions.

The situation is reflected in Chapter 2 "Regulatory Reference Documents", and the specific adjustments are as follows.

* Replace IEC 60093 with GB/T 1410 equivalent to the international standard;

* Replace ISO 284 with GB/T 3684 equivalent to the international standard;

* Replace IEC 60079-0..2011 with GB 3836.1 which adopts the international standard;

* Replace IEC 60079-20-1 with GB/T 3836.11 equivalent to the international standard;

* Replace IEC 60079-10-1 with GB 3836.14 equivalent to the international standard;

* Replace IEC 60079-14 with GB/T 3836.15 which adopts international standards;

* Replace IEC 60079-32-2..2015 with GB/T 3836.27-2019 that adopts international standards;

* Replace ISO 8031 with GB/T 9572 equivalent to the international standard;

* Replace IEC 60167 with GB/T 10064 equivalent to the international standard;

* Replace IEC 60079-10-2 with GB/T 12476.3 that adopts the international standard;

* Replace ISO 12100 with GB/T 15706 equivalent to the international standard;

* Use the European standard GB 25286.1 to replace EN13463-1;

* Replace ISO 16392 with GB/T 26277 which adopts international standard;

* Replace ISO 9563 with GB/T 32072 that adopts international standards;

* Replace ISO 21178 with GB/T 33204 equivalent to the international standard;

* Replace ISO 21179 with GB/T 34366 equivalent to the international standard;

* Replaced EN1360 with HG/T 3037, which adopted the European standard;

* Added references to GB/T 1408.1, GB/T 1408.2, GB/T 10715, GB 12476.1, GB/T 20023,

GB/T 23165, EN1149 (all parts);

* Removed ASTM D257, ASTM D2624-07a, ASTM D4308-95, ASTM E582-88, ASTM

E2019-03, BS5958 (all parts), BS7506-2, DIN51412-1, DIN51412-2, JNIOSHTR42,

And move to references.

--- Amend the test methods 26.14 and 26.15 of IEC 60079-7..2007 cited in the text to GB/T 3836.27-2019

1 Scope

This section of the Explosive Environments provides guidelines for equipment, products, and processes to avoid electrostatic ignition and electrostatic shock hazards, and

Requirements for the safe use of equipment, products or processes.

This section applies to the risk assessment of electrostatic hazards, or used to develop electrical or non-electrical equipment standards or special product standards.

Consider electrostatic hazards that often cause problems in industrial processes and the environment. These processes include solid, liquid, powder, gas, spray

Handling of fog and explosives. For each case, determine the source and characteristics of electrostatic hazards and give specific treatment suggestions.

The purpose of this section is to provide standard recommendations for controlling static electricity, such as grounding conductors, reducing electrification, and limiting the electrified surface of insulation

product. In some cases, static electricity is part of the process, for example, electrostatic spraying, but at the same time the negative effects of static electricity are related to this part.

Note content. If the standard recommendations in this section can be met, the electrostatic discharge hazard in explosive environments can be reduced to an acceptable low level.

If the requirements of this section cannot be met, other methods that reach at least the same level of safety may be used.

Note. For a description of the causes of static electricity in solids, liquids, gases, explosives, and human bodies, and how static electricity can cause ignition or electrostatic shock, see Appendix A to this section.

And Appendix B and IEC /T R61340-1.

This section does not apply to electrostatic hazards related to lightning and damage to electronic components.

This section does not replace standards involving specific products and specific industrial environments.

2 Normative references

The following documents are essential for the application of this document. For dated references, only the dated version applies to this article

Pieces. For undated references, the latest version (including all amendments) applies to this document.

GB/T 1408.1 Test method for electrical strength of insulating materials-Part 1. Test at power frequency (GB/T 1408.1-2016,

(IEC 60243-1..2013, IDT)

GB/T 1408.2 Test methods for electrical strength of insulating materials-Part 2. Additional requirements for applied DC voltage tests

(GB/T 1408.2-2016, IEC 60243-2..2013, IDT)

GB/T 1410 Test method for volume resistivity and surface resistivity of solid insulating materials (GB/T 1410-2006, IEC 60093.

(1980, IDT)

GB/T 3684 conveyor belt conductivity specifications and test methods (GB/T 3684-2006, ISO 284..2003, IDT)

GB 3836.1 Explosive atmospheres Part 1. General requirements for equipment (GB 3836.1-2010, IEC 60079-0..2007,

MOD)

GB/T 3836.11 Explosive atmospheres Part 11. Test methods and data for classification of gas and vapour properties

(GB/T 3836.11-2017, IEC 60079-20-1..2010, IDT)

GB 3836.14 Explosive atmospheres Part 14. Classification of places for explosive atmospheres (GB 3836.14-2014,

(IEC 60079-10-1..2008, IDT)

GB/T 3836.15 Explosive atmospheres Part 15. Design, selection and installation of electrical devices (GB/T 3836.15-2017,

(IEC 60079-14..2007, MOD)

GB/T 3836.27-2019 Explosive environment Part 27. Static electricity hazard test (IEC 60079-32-2..2015, MOD)

GB/T 9572 Determination of resistance and conductivity of rubber and plastic hoses and hose assemblies (GB/T 9572-2013,