Explosion-proof distribution boxcertification:

ATEXIsAlgorithm语"Atmospheres EXplosibles"的CompressionWrite，Accident思Is"Explosive Atmosphere"。Since July 1, 2003, equipment and protective systems intended for use in potentially explosive atmospheres entering the European Economic Area (EEA) must comply with the ATEX Directive (94/9/EC Equipment and protective systems intended for use in potentially explosive atmospheres).。The following products are excluded: medical products, products intended for use with explosives, household products, personal protective equipment, seagoing vessels and mobile offshore platforms, equipment for transport purposes in potentially explosive atmospheres other than vehicles, and military equipment.。

Certification related to explosion-proof zone classification for explosion-proof distribution boxes: To certify a product, the application "zone" in which the product will be used must be considered.。Change句话Speak， Namely OutputOn-site凶DangerousEnvironment的ConceptRate And ExtentDegree，NextAspectsStableMeaning了ThreeVariousAreaRegion:

Explosion-proof distribution boxprotectiontypecertification:ProductmustShouldUsersprotectionConceptCertificateBrightItsIsnocompliantstandardized。However, not all protection concepts are applicable to every zone.。Please carefully review these protection concepts.。Take flameproof type "Ex d" as an example to provide a brief introduction.。

Explosion-proof distribution boxFlameproof Type'Ex d"certificationProject

1、inEx dexplosion-proof罩Domestic，UpWithOutputOn-sitearc、sparkWith And High Temperature:

TheseIs Because weFalseStable罩Domesticoccurexplosion，this kind ofProtectionmethodCanSystemPrevent罩DomesticSuddenlyoccur的explosionTowardOverseasClassTransmitcloth。To this end, the flameproof enclosure must have sufficient strength to contain the explosion within the enclosure without deformation, and its operating temperature must be lower than the ignition temperature of the surrounding environment.。

2、TheyalsomustprovideUpPower Supply焚IgniteGas逃逸的Channel:

罩Domestic的焚IgniteGasTrulycontinuouslyExtendTogether，butTheyUpWithFromexplosion-proof罩Cover And MainStructurePositionArea的MicroSmallCrackSeamlessIn逃逸OutputRemove。The path used by the burning gases to escape is very long, sufficient to cool and extinguish the burning flame, thereby preventing the surrounding environment from igniting.。

3. There are various flame paths; the standards specify permissible gaps for flanges, spigots, and other joints based on experimental testing.。

Explosion-proof distribution boxexplosion-proofEnvironmentalEnergy-savingTestingintroduction:

1)、EnclosurePunching击Testing And Surface TemperatureMeasureStable；

2)、nonMetallurgyMetalMaterialResistHeatResistColdTest；

3)、BasicStandardpressureTesting；

4)、OvervoltageTesting；

5)、InsideAspectsTriggerBlastInvincibleTransmitBlastTesting。

The above is an introduction to the certification items for flameproof type "Ex d" explosion-proof distribution boxes. For more related information, please visit Hualong Explosion-Proof at www.hlfbdq.com/.。