HEMP Protection Systems
FT. Greely and Eareckson Air Station, AK
Fabrication, erection, and welding of the ¼” & 1/8”carbon steel HEMP shield plates (over 82,000 square feet) on all ceilings, walls and floors of the HEMP protected areas.
• Testing of protective devises: wave-guide below cutoffs (WBCs), inductive element electrical filters, metal-oxide varistors , RF shielded pull boxes, RF wave guide arrays, RF honeycomb wave guides, RF shielded conduits/protected wire way distributions and RF shielded HEMP type doors)-94 inductive input HEMP RF filter cabinet assemblies with Surge Arrestors, double RF shielded compartments
• 24 HEMP RF door and frame assemblies, double knife-edge type, welded frames and audio/visual warning interlock system for each vestibule.
• RF wave-guide arrays fabricated from 4” steel tubes 30” long welded into large assemblies for large volume, high velocity venting with some weighing over 6000 pounds.
• Steel formed RF expansions joints in ceiling panels and structural penetrations as required to meet Seismic Conditions.