Explosion-Proof Type: Intrinsically Safe Type "i"

Applicable Explosion-Proof Standards:

GB/T 3836.1-2021 Explosive atmospheres - Part 1: Equipment - General requirements

GB/T 3836.4-2021 Explosive atmospheres - Part 4: Equipment protected by intrinsic safety "i"

Explosion-Proof Type: Flameproof Type "d"

Applicable Explosion-Proof Standards:

GB/T 3836.1-2021 Explosive atmospheres - Part 1: Equipment - General requirements

GB/T 3836.2-2021 Explosive atmospheres - Part 2: Equipment protected by flameproof enclosures "d"

Explosion-Proof Type: Increased Safety Type "e"

Applicable Explosion-Proof Standards:

GB/T 3836.1-2021 Explosive atmospheres - Part 1: Equipment - General requirements

GB/T 3836.3-2021 Explosive atmospheres - Part 3: Equipment protected by increased safety "e" (Note: Corrected the original typo "GB/T36.3-2021")

Explosion-Proof Type: Pressurized Type "p"

Applicable Explosion-Proof Standards:

GB/T 3836.1-2021 Explosive atmospheres - Part 1: Equipment - General requirements

GB/T 3836.5-2021 Explosive atmospheres - Part 5: Equipment protected by pressurized enclosures "p"

Explosion-Proof Type: Oil-Immersed Type "o"

Applicable Explosion-Proof Standards:

GB/T 3836.1-2021 Explosive atmospheres - Part 1: Equipment - General requirements

GB/T 3836.6-2017 Explosive atmospheres - Part 6: Equipment protected by oil immersion "o"

Explosion-Proof Type: Sand-Filled Type "q"

Applicable Explosion-Proof Standards:

GB/T 3836.1-2021 Explosive atmospheres - Part 1: Equipment - General requirements

GB/T 3836.7-2017 Electrical equipment for explosive gas atmospheres - Part 7: Sand-filled type "q"

Explosion-Proof Type: Type "n"

Applicable Explosion-Proof Standards:

GB/T 3836.1-2021 Explosive atmospheres - Part 1: Equipment - General requirements

GB/T 3836.8-2021 Explosive atmospheres - Part 8: Equipment protected by type "n"

Explosion-Proof Type: Encapsulated Type "m"

Applicable Explosion-Proof Standards:

GB/T 3836.1-2021 Explosive atmospheres - Part 1: Equipment - General requirements

GB/T 3836.9-2021 Explosive atmospheres - Part 9: Equipment protected by encapsulation "m"

Explosion-Proof Type: Dust Ignition-Proof Enclosure "t"

Applicable Explosion-Proof Standards:

GB/T 3836.1-2021 Explosive atmospheres - Part 1: Equipment - General requirements

GB/T 3836.31-2021 Explosive atmospheres - Part 31: Equipment protected by dust ignition-proof enclosures "t"

Explosion-Proof Type: Optical Radiation "op"

Applicable Explosion-Proof Standards:

GB/T 3836.1-2021 Explosive atmospheres - Part 1: Equipment - General requirements

GB/T 3836.22-2017 Explosive atmospheres - Part 22: Protection measures for optical radiation equipment and transmission systems

Explosion-Proof Type: Non-Electrical Equipment Type "h" 

Applicable Explosion-Proof Standards:

GB/T 3836.1-2021 Explosive atmospheres - Part 1: Equipment - General requirements

GB/T 3836.28-2021 Explosive atmospheres - Part 28: Non-electrical equipment for explosive atmospheres - Basic methods and requirements

GB/T 3836.29-2021 Explosive atmospheres - Part 29: Non-electrical equipment for explosive atmospheres - Constructional safety type "c", control of ignition sources type "b", oil-immersed type "k"

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