SPECIFICATIONS APPENDIX_A_HZR.pdf

This file is a Specifications Appendix that provides detailed technical requirements for the emergency generator installation project at the National Museum of American History (NMAH).

The specifications establish requirements for furnishing and installing two new 500kW natural gas-fueled generators on the museum's roof, including integral paralleling gear mounted on a new structural steel platform. Key technical deliverables include converting Room 4606 from collections storage to a new Emergency Electrical Room housing a new switchboard, automatic transfer switches (ATSs), transformers, and panelboards. The work encompasses decommissioning and removing the existing aging 300kW diesel generator from the lower level. Additional scope includes routing a new natural gas line through the building, performing structural modifications to support rooftop equipment installation, and coordinating all electrical and gas service pathways throughout the complex existing structure. The project requires extensive coordination with ongoing museum operations, as the facility must remain fully operational and open to the public during construction. Associated work includes hazardous material abatement, mechanical, plumbing, security, and architectural modifications necessary to ensure full functionality, seamless integration with existing building systems, and future serviceability and maintenance capabilities. The specifications detail technical parameters, installation standards, and interface requirements to support the transition from diesel to natural gas power generation while maintaining critical electrical service to the museum facility.