Hazardous Locations - Zone 2
2.6 هزار بار بازدید -
2 سال پیش
-
Electrical equipment is often installed
Electrical equipment is often installed in locations where there are gases present, making them hazardous locations. Therefore, it is required that these products to be designed and constructed in compliance with safety standards in order to be safe for use in such hazardous locations.
As per International Electrotechnical Committee standards, the classified areas are categorized in three groups: Zone 0, Zone 1 and Zone 2.
This diagram of a typical petrol station shows the areas classified as Zone 0, Zone 1 and Zone 2. In this animation, our focus is on the Zone 2 classified areas.
Zone 2 is a location in which explosive gas atmospheres are not likely to occur in normal operation and, if they do occur, they will exist for a short time only. Zone 2 includes the area adjacent to a Zone 1 location, from which explosive gas atmospheres could be communicated.
In our example of the tank, the area identified as Zone 2 is outside of and immediately adjacent to the Zone 1 area. Under normal operating conditions, there would be no gas present outside the tank. If gas leaks out of the tank due to accidental rapture, repair, or maintenance, however, a hazard exists. Gas leaking out would create a hazard if the equipment installed inside fails or operates in an abnormal manner. The probability of the occurrence of an ignitable concentration is rare and, if one occurs, it only persists for a short period.
The product being used in this area must be safe. In order to be certified as compliant with safety Standards for Zone 2, the product must be protected by one or more of the following eleven protection techniques: intrinsic safety, non-arcing and non-sparking, sealed devices, encapsulation, flameproof, purging and pressurization, oil immersion, powder filling, Increased safety, optical radiation, and special protection.
It is important to use the protection technique that is best-suited to the product based on its design and function. Products suitable for use in Zones 0 and 1 may also be used and installed in Zone 2.
Please see our other videos to learn more about other classified areas, as well as the protection techniques that are specific to them.
If you are a product designer, or a buyer, and need an electrical device that has been certified for zone 2, the Hazloc Directory website can help!
Hazloc Directory is the world's most trusted source of information about hazardous location products & manufacturers.
HAZLOC DIRECTORY
https://www.hazlocdirectory.com
Background Music: www.bensound.com
As per International Electrotechnical Committee standards, the classified areas are categorized in three groups: Zone 0, Zone 1 and Zone 2.
This diagram of a typical petrol station shows the areas classified as Zone 0, Zone 1 and Zone 2. In this animation, our focus is on the Zone 2 classified areas.
Zone 2 is a location in which explosive gas atmospheres are not likely to occur in normal operation and, if they do occur, they will exist for a short time only. Zone 2 includes the area adjacent to a Zone 1 location, from which explosive gas atmospheres could be communicated.
In our example of the tank, the area identified as Zone 2 is outside of and immediately adjacent to the Zone 1 area. Under normal operating conditions, there would be no gas present outside the tank. If gas leaks out of the tank due to accidental rapture, repair, or maintenance, however, a hazard exists. Gas leaking out would create a hazard if the equipment installed inside fails or operates in an abnormal manner. The probability of the occurrence of an ignitable concentration is rare and, if one occurs, it only persists for a short period.
The product being used in this area must be safe. In order to be certified as compliant with safety Standards for Zone 2, the product must be protected by one or more of the following eleven protection techniques: intrinsic safety, non-arcing and non-sparking, sealed devices, encapsulation, flameproof, purging and pressurization, oil immersion, powder filling, Increased safety, optical radiation, and special protection.
It is important to use the protection technique that is best-suited to the product based on its design and function. Products suitable for use in Zones 0 and 1 may also be used and installed in Zone 2.
Please see our other videos to learn more about other classified areas, as well as the protection techniques that are specific to them.
If you are a product designer, or a buyer, and need an electrical device that has been certified for zone 2, the Hazloc Directory website can help!
Hazloc Directory is the world's most trusted source of information about hazardous location products & manufacturers.
HAZLOC DIRECTORY
https://www.hazlocdirectory.com
Background Music: www.bensound.com
2 سال پیش
در تاریخ 1401/01/04 منتشر شده
است.
2,647
بـار بازدید شده