GB 3836.9-2014
Explosive atmospheres.Part 9:Equipment protection by type of protection "m" (English Version)

Standard No.

GB 3836.9-2014

Language

Chinese, Available in English version

Release Date

2014

Published By

General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China

Status

Be replaced 2022-05

Replace By

GB/T 3836.9-2021

Latest

GB/T 3836.9-2021

Replace

GB 3836.9-2006

Scope

This part of GB 3836 specifies the special requirements for the construction, testing and marking of electrical equipment, electrical equipment components and Ex components protected by potting type "m" for explosive gas atmospheres and explosive dust atmospheres. This part is only applicable to potted electrical equipment with a rated voltage not exceeding 11 kV, potted parts of electrical equipment and potted Ex components (hereinafter collectively referred to as "m" equipment). Electrical equipment used in an environment where explosive gases and combustible dust may occur simultaneously may require additional protective measures. This section does not apply to pyrotechnic dusts that do not require atmospheric oxygen to burn, nor does it apply to spontaneous combustion substances. This section does not consider the formation of flammable or toxic gases in dust hazards. This part is the supplement and modification of the general requirements of GB 3836.1-2010. If there is a conflict between the requirements of this section and the requirements of GB 3836.1-2010, the requirements of this section shall prevail.

GB 3836.9-2014 Referenced Document

• GB 12476.4-2010 Electrical apparatus for use in the presence of combustible dust.Part 4:Protection by intrinsic safety "iD"
• GB 14536.10-2008 Automatic electrical controls for household and similar use.Particular requirements for temperature sensing controls
• GB 19212.7-2012 Safety of transformers,reactors,power supply units and similar products for supply voltages up to 1100V.Part 7:Particular requirements and rest for safety isolating transformers and power supply units incorporating safety isolating transformers
• GB 3836.1-2010 Explosive atmospheres.Part 1:Equipment.General requirements
• GB 3836.20-2010 Explosive atmospheres.Part 20:Equipment with equipment protection level(EPL)Ga
• GB 3836.3-2010 Explosive atmospheres.Part 3:Equipment protection by increased safety "e"
• GB 3836.4-2010 Explosive atmospheres.Part 4:Equipment protection by intrinsic safety "i"
• GB 3836.8-2014 Explosive atmospheres.Part 8: Equipment protection by type of protection “n”
• GB 9364.1 Miniature fuses. Part 1: Definitions for miniature fuses and general requirement for miniature fuse-links
• GB 9364.2 Miniature fuses. Part 2: Cartridge fuse-links
• GB 9364.3 Miniature fuses. Part 3: Sub-miniature fuse-links
• GB 9364.4 Miniature fuses. Part 4: Universal modular fuse-links (UMF)
• GB 9364.6 Miniature fuses--Part 6: Fuse-holders for miniature cartridge fuse-links
• GB 9816.1-2013 Thermal-links.Part 1:Requirements and application guide
• GB/T 1034-2008 Plastics.Determination of water absorption
• GB/T 1408.1-2006 Electrical strength of insulating materials-Test methods-Part 1:Tests at power frequencies
• GB/T 16855.1-2008 Safety of machinery.Safety related parts of control systems.Part 1: General principles for design
• GB/T 16935.1-2008 Insulation coordination for equipment within low-voltage systems.Part 1:Principles,requirements and tests
• GB/T 7153-2002 Directly heated positive step-function temperature coefficient thermistors Part 1: Generic specification
• IEC 60079-31:2008 Explosive atmospheres - Part 31: Equipment dust ignition protection by enclosure "t"

GB 3836.9-2014 history

• 2021 GB/T 3836.9-2021 Explosive atmospheres—Part 9：Equipment protection by encapsulation “m”
• 2014 GB 3836.9-2014 Explosive atmospheres.Part 9:Equipment protection by type of protection "m"
• 2006 GB 3836.9-2006 Electrical apparatus for explosive gas atmospheres Part 9: Encapsulation "m"
• 1990 GB 3836.9-1990 Electrical apparatus for explosive atomspheres--Encapsulated electrical apparatus "m"

GB 3836.9-2014 Explosive atmospheres.Part 9:Equipment protection by type of protection "m" was changed to GB/T 3836.9-2021 Explosive atmospheres—Part 9：Equipment protection by encapsulation “m”.

GB 3836.9-2014 -All Parts