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"ONSHORE ISO SHIPPING CONTAINERS" VS "OFFSHORE DNV SHIPPING CONTAINERS"
DIFFERENT HAZARDOUS AREAS HAVE A CERTAIN IMPACT ON THE DESIGN OF CONTAINERS, BUT HOW TO IDENTIFY ZONE 0, ZONE 1, AND ZONE 2 HAZARDOUS AREAS?
- EXPOSURE TO HARSH ENVIRONMENTS
- Offshore containers are often left exposed to open sea on the decks of supply vessels, and also loaded to platforms in harsh weather conditions, this also means that the minimum design temperature is normally specified as -20° C and the primary structure requires material of sufficient toughness for -20° C.
- LOADING AND UNLOADING FORCES
- Because many offshore containers cannot be used with typical lifting equipment such as spreader beams, the methods of loading and unloading put different types of pressure on the structures of offshore containers. Offshore containers are supplied with a permanently installed sling set. Most do not have corner castings, and if they do, they are not allowed to be lifted from them.
- NON-STANDARD DESIGNS
- Most offshore containers are built to fit a specific piece of equipment, and therefore, do not fit into the ISO container category.
DIFFERENT HAZARDOUS AREAS HAVE A CERTAIN IMPACT ON THE DESIGN OF CONTAINERS, BUT HOW TO IDENTIFY ZONE 0, ZONE 1, AND ZONE 2 HAZARDOUS AREAS?
- Zone 0: the area where explosive gases persist for a long time or will occur frequently.
- Zone 1: the area where an explosive atmosphere may occasionally occur during normal operation. It may exist as a result of repair, maintenance operations, or leaks.
- Zone 2: the place where an explosive atmosphere is unlikely to occur during normal operations, but if it does, it will only last for a short time. These areas become dangerous only in the event of an accident or some unusual operating conditions.
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