What electrical classifications are typically used in ammonia facilities for hazardous locations?

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Multiple Choice

What electrical classifications are typically used in ammonia facilities for hazardous locations?

Explanation:
Ammonia is a gas, so hazardous-location classifications for these facilities are Class I, not Class II or III. The division rating (Division 1 or Division 2) indicates how often the hazardous atmosphere is present: Division 1 means the gas is present under normal operation, while Division 2 means it occurs only under abnormal conditions. In ammonia refrigeration, equipment is typically selected to be Class I, Division 1 or Division 2 to cover the possibility of ammonia gas being present. The other options misclassify the hazard type (dusts or fibers) or claim non-hazardous, which doesn’t fit ammonia systems.

Ammonia is a gas, so hazardous-location classifications for these facilities are Class I, not Class II or III. The division rating (Division 1 or Division 2) indicates how often the hazardous atmosphere is present: Division 1 means the gas is present under normal operation, while Division 2 means it occurs only under abnormal conditions. In ammonia refrigeration, equipment is typically selected to be Class I, Division 1 or Division 2 to cover the possibility of ammonia gas being present. The other options misclassify the hazard type (dusts or fibers) or claim non-hazardous, which doesn’t fit ammonia systems.

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