What is the primary purpose of placing protective barriers around B28 equipment?

• A. Barriers protect from impact, reduce ignition risk, and separate from occupied spaces
• B. Barriers are optional and rarely used
• C. Barriers should be removed during operation
• D. Barriers should be decorative

Answer: (A)

Protective barriers around B28 equipment are there to create a safe boundary that prevents impacts from nearby activity, reduces the chance of ignition by keeping potential ignition sources and workers separated from the equipment, and maintains a clear separation between the equipment and occupied or high-traffic spaces. Because B28 systems involve flammable refrigerants, a leak or fault can release vapor that could ignite; barriers help contain that risk by limiting access and directing safe distances, which also supports safe egress in an emergency. They are essential safety features, not optional or decorative, and should remain in place during operation to preserve protection.