7. 1 Constructed to withstand seismic forces.
2. Enclosures: surface mounted.
a. Indoor Dry and Clean Locations: IP 42.
b. Outdoor Locations: IP65.
c. Front: Hinged cover.
d. Optional Enclosure Features: gutter extension and
barrier.
e. Directory card.
3. Incoming Mains Location: Top and bottom.
4. Phase, Neutral, and Ground Buses: Copper.
Optional Buses: Equipment ground, isolated ground, and
extra-capacity neutral, based on application requirements.
5. Conductor Connectors: Compression-type main and neutral
lugs.
Optional Features: Compression-type feed-through lugs and
extra-capacity neutral lugs.
6. Service equipment label for panel boards incorporating one
or more main service disconnecting and over current
protective devices.
7. Panel board Short-Circuit Current Rating: Fully rated to
interrupt symmetrical short-circuit current available at
terminals.
D. Disconnecting and Over current Protective Devices:
1. Molded-Case Circuit Breaker (MCCB): Interrupting
capacity to meet available fault currents.
a. Circuit Breakers: Thermal magnetic for frame sizes up
to 160 amperes and electronic type for higher frame
sizes; normal duty (N), high break (H), or current
8.
9. C. The panel(s) shall be factory wired and tested and include a
shielded low leakage isolation transformer, primary and
secondary circuit breakers, and LIM.
D. Operating Room Hospital Panels shall include:
1. Transformer shall be a shielded low-leakage isolating
transformer, specifically manufactured for the use in hospital
isolated systems.
2. Monitoring system located in the operating room preferably
to be touch screen to provide the medical team with visual
and aural information about the state of the electrical
installation and the value of certain environmental
parameters in the operating room. The screen shall be
compatible with the cleaning products normally used in
operating rooms.
3. Circuit breakers.
4. Remote alarm indicator and remote access for maintenance.
5. Dual display lock timer.
6. Surgical Chronometer.
7. Power and ground modules.
E. Monitoring system shall indicate alarm where the total hazard
current exceeds 5 mA. The remote indicator alarm unit shall be
located in the operating room and connected to the panel
supplying power to the circuits in that room.
F. A second indicator alarm unit shall be built into an annunciator
containing indicator alarm units for all LIMs in the operating
suite. This console will be located at the operating room (OR)
supervisor’s station.
G. The Monitoring system shall use microprocessor-based digital
signal processing to continually monitor the impedance from all
secondary conductors of the isolated power systems to ground.
H. The transformer shall be wound with an electrostatic shield
between the primary and secondary windings. The shield shall
