In which division do hazardous locations exist where atmospheric conditions can be present during normal operations?

Hazardous locations are classified into different divisions based on the likelihood and duration of the presence of dangerous atmospheres. In Division 1, hazardous conditions are expected to exist during normal operation. This means that flammable gases, vapors, or dust are likely to be present frequently, which poses a risk of ignition under normal circumstances.

Division 1 is designated for environments where ignitable concentrations of flammable materials are continuously present, or occur frequently over long durations. These locations require stringent safety measures and equipment that can operate safely in such conditions.

In contrast, Division 2 refers to areas where ignitable material is not normally present but may be accidentally present, such as a spill. Division 3 involves locations where the hazardous materials are present under abnormal conditions but not typically during normal operations. Division 0 is not commonly utilized in current classifications but would imply a constant presence of hazardous atmospheres.

Understanding these divisions helps in determining the appropriate precautions and equipment needed to ensure safety in the workplace where hazardous materials are involved.