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The 18 foot ceilings accommodated the then standard 11 foot, 6 inch equipment racks, with space overhead for cable racks, bus bars, AC ducts, etc. It was built
by Merrill 7y ago
The 18 foot ceilings accommodated the then standard 11 foot, 6 inch equipment racks, with space overhead for cable racks, bus bars, AC ducts, etc. It was built about the time that the standard was changed to 7 foot racks for the new electronic switching systems.