Electrical Explosion Proof Junction Box , Stainless Steel Junction Box With Terminals

Electrical explosion proof junction box / flameproof junction box with terminals

Description:

Explosion proof junction box with the GB3836 explosion-proof 2000 regulation, flameproof, made its mark is ExdIIB explosion. Applicable to contain type IIA, IIB, the corresponding temperature classes with explosive air mixture of district 1, 2 division places.

Explosion-proof box as flameproof explosion-proof parts, can be used as a control, lighting or power line cable branch connection with, also can be used as tankers power circuit

Technical Parameters:

Application: 

Designed for Explosive atmosphere Zone land Zone 2

Designed for Groups IIA, IIB, IIC

Designed for Combustible dust Zone20, Zone 21, Zone22

Designed for Temperature classesT6

Apply to oil drilling platforms, offshore oil platform, oil derrick, etc for the dangerous sites

Used in electrical control system assendorder and status, monitor

● The gas field is divided into three areas: Zone 0, Zone 1 and Zone 2:

Zone 0: A site where explosive mixtures in an explosive atmosphere occur continuously in the form of gases, vapors or mists or exist for long periods of time.

Zone 1: A site where explosive mixtures of gas, vapour or mist may occur in an explosive atmosphere during normal operation. Zone 1 is a typical application site for explosion-proof electrical equipment.

Zone 2: In normal operation, explosive mixtures in the form of gases, vapors or mists are unlikely to occur in explosive atmospheres, and if present, are only occasional and short-lived locations. Usually, "short time" means that the duration is no more than 2 hours.

● The dust site is divided into three areas: 20, 21 and 22:

Zone 20: Combustible dust continuously or frequently occurs during normal operation in an amount sufficient to form a mixture of flammable dust and air and/or a location and container interior that may form an uncontrollable and extremely thick dust layer.

Zone 21: During normal operation, there may be a place where the amount of dust is sufficient to form a mixture of flammable dust and air but not zoned 20. This area includes locations directly adjacent to the charge or discharge of dust, where dust layers and flammable concentrations of flammable dust and air may be produced under normal operating conditions.

Zone 22: Under abnormal conditions, flammable dust clouds occur occasionally and are only present for a short period of time, or flammable dust occasionally accumulates or may present a dust layer and produce a flammable dust air mixture but not zoned into Zone 21. If it is not guaranteed to exclude flammable dust accumulation or dust layer, it should be divided into 21 zones.