GB 3836.9-2014: Electrical apparatus for explosive gas atmospheres -- Part 9: Encapsulation m

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Scope

This part of GB 3836 gives the specific requirements for the construction, testing and
marking of electrical equipment, parts of electrical equipment and Ex components with
the type of protection encapsulation “m” intended for use in explosive gas atmospheres
or explosive dust atmospheres.
This part applies only for encapsulated electrical equipment, encapsulated parts of
electrical equipment and encapsulated Ex components (hereinafter always referred to
as “m” equipment) where the rated voltage does not exceed 11 kV.
The application of electrical equipment in atmospheres, which may contain explosive
gas as well as combustible dust simultaneously may require additional protective
measures.
This standard does not apply to dusts of explosives, which do not require atmospheric
oxygen for combustion, or to pyrophoric substances.
This standard does not take account of any risk due to an emission of flammable or
toxic gas from the dust.
This standard supplements and modifies the general requirements of GB 3836.1-2010.
Where a requirement of this standard conflicts with a requirement of GB 3836.1-2010,
the requirement of this standard shall take precedence.

Basic Data

Standard ID	GB 3836.9-2014 (GB3836.9-2014)
Description (Translated English)	Electrical apparatus for explosive gas atmospheres -- Part 9: Encapsulation m
Sector / Industry	National Standard
Classification of Chinese Standard	K35
Classification of International Standard	29.260.20
Word Count Estimation	26,224
Date of Issue	12/5/2014
Date of Implementation	10/16/2015
Older Standard (superseded by this standard)	GB 3836.9-2006
Quoted Standard	GB/T 1034-2008; GB/T 1408.1-2006; GB 3836.1-2010; GB 3836.3-2010; GB 3836.4-2010; GB 3836.8-2014; GB 3836.20-2010; GB/T 7153-2002; GB 9364.1; GB 9364.2; GB 9364.3; GB 9364.4; GB 9364.5; GB 9364.6; GB 9364.10; GB 9816.1-2013; GB 14536.10-2008; GB 12476.4-2
Adopted Standard	IEC 60079-18-2009, MOD
Regulation (derived from)	Announcement of Newly Approved National Standards 2014 No. 27
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 explosive gas atmospheres and explosive dust atmospheres made Encapsulation "m" construction, testing and marking of electrical protection equipment, electrical equipment components and requirements for Ex element. This section