Conceptual Master Plan - Emeryville Center of Community Life

CONCEPTUAL DESIGN January 9, 2009
Emeryville Center of Community Life
24. Clock, Bell, Intercom System for classrooms/school Admin.
25. Emergency power distribution for the Facility.
C. Electric service and distribution equipment:
1. A new 4000 Amp, 277/480 Volt, 3-Phase, 4-Wire electric service shall be
obtained to serve the building.
2. A new Main switchboard shall be installed in the main electric room, or installed
outside the building adjacent to the PG&E transformer. The Main Switchboard
shall be rated at 4000A, 277/480V, 3PH 4W with an incoming Bus Duct
section, a meter/main section, and a full-height distribution section. The main
switchboard and all devices in the main switchboard shall be braced for and
rated to interrupt the available utility company fault current at the point of
service (to be determined by the utility company), assume 65K AIC.
3. The existing Gym Building panelboards will need to be back feed from the new
main switchboard.
4. All switchgear and distribution equipment throughout the project shall be
seismically braced.
5. Large HVAC system loads shall be fed directly from the main switchboard
distribution section.
6. Smaller HVAC system loads shall be fed from dedicated HVAC system
electrical branch panelboards.
7. Fluorescent lighting shall be fed from 277/480V branch panelboards, via low
voltage relay lighting control panels.
8. Computer, telephone, data communications, TV, audio-visual, and other
sensitive electronic loads shall be fed through dedicated receptacles located as
required throughout the facility. These sensitive loads shall be connected to
dedicated 120/208V 3PH 4W "clean" power branch circuit panelboards located
in the main electrical room and satellite electrical rooms. "Clean" power panels
shall be equipped with integral transient voltage surge suppression systems.
9. Neutral bussing and conductors for distribution equipment and TVSS protected
branch panels shall have 200% rated neutrals to accommodate for harmonic
currents generated by electronic power supplies.
10. Branch circuit panels shall be general-purpose type, surface mounted with
bolt-on type circuit breakers.
Outline Specifications- 69