What is the difference between ATEX Zone 1 and 2?
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.
What is Zone 1 and what are its specific requirements?
A Zone 1 area is classified as a place in which an explosive atmosphere consisting of a mixture with air or flammable substances in the form of gas, vapour or mist is likely to occur in normal operation occasionally. These are typically process areas where gases are more likely to be present.
How do you define ATEX Zone?
ATEX
| Zone Classification for Gases | |
|---|---|
| Zone 0 | That part of a hazardous area in which a flammable atmosphere is continually present or present for long periods. |
| Zone 1 | That part of a hazardous area in which a flammable atmosphere is likely to occur in normal operation. |
What equipment category is suitable for Zone 1?
Equipment category 2 This equipment is intended for use in Zone 1 (gases) or Zone 21 (dusts).
What is the difference between Zone 0 and Zone 1?
Zone 0 is an area in which an explosive atmosphere is present continuously for long periods of time or will frequently occur. Zone 1 is an area in which an explosive atmosphere is likely to occur occasionally in normal operation. It may exist because of repair, maintenance operations, or leakage.
What type of electrical equipment is required in Zone O classification?
Explosion Protection Concepts
| Type of Explosion Protection Method | Equipment Code | Suitable for Zones |
|---|---|---|
| Intended to prevent the explosive atmosphere contacting the ignition source | Ex ma | 0, 1, 2 |
| Ex mb | 1, 2 | |
| Ex o | 1, 2 | |
| Ex nR | 2 |
What is ATEX electrical equipment?
ATEX is the name commonly given to the legal requirements for controlling explosive atmospheres and the suitability of equipment and protective systems used in them.