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Benjamin P. Schaefer'
Benjamin Schaefer, a 17-year veteran of UL, is a primary designated engineer for intrinsically safe equipment and systems. In addition to intrinsically safe equipment, he has worked with explosion-proof and nonincendive equipment. He is a delegate to the IEC SC 31G subcommittee on intrinsic safety and is a member of the IEC SC 31G MT4 maintenance team for intrinsic safety, and is also a member of the ISA S12.06 subcommittee for Wiring Practices for Hazardous (Classified) Locations.