What is Zone 2 in oil and gas?

Zone 1: An area in which an explosive gas atmosphere is likely to occur in normal operation; Zone 2: An area in which an explosive gas atmosphere is not likely to occur in normal operation and, if it occurs, will only exist for a short time.

Is Zone 2 safe area?

Zone 2 is a place in which an explosive atmosphere is not likely to occur in normal operation but, if it does occur, will persist for a short period only. These areas only become hazardous in case of an accident or some unusual operating condition.

What is the definition of ATEX Zone 2?

Atex Zone 2 area is a place in which an explosive atmosphere consisting of a mixture with air of flammable substances in the form of gas or vapour is not likely to occur in normal operation but, if it does occur, will persist for a short period only (from 0,1hrs to 10hrs/365d).

What does ATEX stand for in hazardous area?

Hazardous Area Gas Detectors (ATEX) For Zone 1 & Zone 2. ATEX Directive – the Ex logo indicates that the gas detection equipment is suitable for use in a Flammable Atmosphere, Typically Zone 1 or Zone 2 hazardous area.

Why are gas and dust zones not included in ATEX?

These were used in the old BS standard but then dropped and not referenced in the Atex standards as the absolute figures do not sit well with statistical risk analysis techniques but are still commonly erroneously quoted. Where both gas and dust hazards can occur simultaneously, a Hybrid Mixture, the area would need to be zoned for both.

What is ATEX 1999 / 92 / EC Zone 1?

The use of explosion protection equipment in a potentially hazardous area is something which is a requirement from both the user and supplier of the Ex-proof equipment. For example, European ATEX legislation has two different directives for the user and the supplier: ATEX 1999/92/EC requires companies to manage the risk and the process safely.