2.1 EMT RISER INSTALLATION Install vertical EMT riser conduit with integrated innerduct between stacked meter rooms to support floor-by-floor fiber distribution. NOTE: Final riser and equipment layout drawings will be provided to the successful bidder following contract award. For bidding purposes, contractors shall rely on the narrative Scope of Work and unit counts provided herein. 2.1.1 SUMMARY SCOPE The following tasks are included in this phase. • Install vertical 4” EMT riser conduits in both East and West wings (segmented by floor) • Core drill between floors to accommodate vertical conduit penetrations • Provide mechanical supports, bushings, firestopping, and labeling in accordance with GCET standards and applicable codes 2.1.2 EMT DESIGN SUMMARY The EMT riser system provides protected vertical pathways for fiber routing from each floor to the MDF (West Wing) and IDF (East Wing), both located on the first floor. Each wing shall include a dedicated riser composed of segmented 4” EMT conduit installed between vertically aligned meter rooms (Ground through 4th). A single 1” corrugated innerduct shall be installed inside each conduit segment and routed continuously to a wall-mounted pullthrough enclosure (nominal 8”×8”×4” or GCET-approved equivalent) on each floor. Installations in the East and West wings shall be performed as separate, sequential phases. • EMT segments shall be limited to approximately 5 feet in length and shall not pass through more than one floor without mechanical separation and UL-listed firestopping • Conduit fill ratio (based on 1.3–1.4” OD innerducts) shall not exceed 40%, in accordance with NEC and industry best practices • Bare fiber shall not be placed directly into conduit; all fiber must be routed within innerduct for protection and serviceability • No horizontal conduit is required between units and meter rooms; fiber will be routed through ceiling cavities or surface-mounted raceway
