Standard No.:	GB 3836.9-2006
English Name:	Electrical apparatus for explosive gas atmospheres - Part 9: Encapsulation “m”
Chinese Name:	爆炸性气体环境用电气设备 第9部分:浇封型“m”
Chinese Classification:	K35    Explosion-proof electric apparatus
Professional Classification:	GB    National Standard
ICS Classification:	29.260.20 29.260.20    Electrical apparatus for explosive atmospheres 29.260.20
Issued by:	AQSIQ; SAC
Issued on:	2006-12-1
Implemented on:	2007-6-1
Status:	superseded
Superseded by:	GB 3836.9-2014 Explosive atmospheres―Part 9:Equipment protection by type of protection “m”
Superseded on:	2015-10-16
Superseding:	GB 3836.9-1990 Electrical apparatus for explosive atmospheres Encapsulated electrical apparatus m
Language:	English
File Format:	PDF
Word Count:	9000 words
Price(USD):	220.0
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This part gives the specific requirements for the construction and testing of electrical apparatus with the type of protection encapsulation “m”, parts of electrical apparatus and Ex components. This part only applies for encapsulated electrical apparatus, encapsulated parts of electrical apparatus and encapsulated Ex components (hereinafter always referred to as “m” apparatus) where the rated voltage does not exceed 10 kV with a relative tolerance of +10 %. This part supplements the general requirements in GB 3836.1.

1 Scope 2 Normative Reference 3 Terms and Definitions 4 General 5 Requirements for Compounds 6 Temperature 7 Constructional Requirements 8 Type Tests 9 Routine Verifications and Tests 10 Marking Annex A (Informative) Basic Requirements for Compounds for “m” Apparatus Annex B (Normative) Allocation of Test Samples Annex C (Normative) Test Procedure during Thermal Cycling Test