c.
125 percent of UPS output rating for 10 minutes.
2.5.7
Static Switch Disconnect
**************************************************************************
NOTE: Delete if the static switch is of the
draw-out type.
**************************************************************************
A static switch disconnect shall be incorporated to isolate the static
bypass transfer switch assembly so it can be removed for servicing. The
switch shall be equipped with auxiliary contacts and provision for
padlocking in either the "on" or "off" position.
2.6
MAINTENANCE BYPASS SWITCH
2.6.1
General
**************************************************************************
NOTE: Delete for multi-module UPS systems. For
multi-module UPS systems a UPS maintenance bypass
should be incorporated into the UPS output
switchgear.
**************************************************************************
A maintenance bypass switch shall be provided as an integral part of the
UPS and located within the UPS module. The maintenance bypass switch shall
provide the capability to continuously support the critical load from the
bypass ac power source while the UPS is isolated for maintenance. The
maintenance bypass switch shall be housed in an isolated compartment inside
the UPS cabinet in such a way that service personnel will not be exposed to
electrically live parts while maintaining the unit. Switch shall contain a
maintenance bypass protective device and a module isolation protective
device.
2.6.2
The maintenance bypass switch shall provide the capability of transferring
the critical load from the UPS static bypass transfer switch to maintenance
bypass and then back to the UPS static bypass transfer switch with no
interruption to the critical load.
2.6.3
Load Bank Protective Device
**************************************************************************
NOTE: Delete if the ability to load bank test the
UPS system is not required.
**************************************************************************
A load bank protective device shall be provided to allow the UPS system to
be tested using a portable load bank. The load bank protective device
shall be connected on the line side of the maintenance bypass switch
isolation protective device.
2.7
MODULE CONTROL PANEL
The UPS module shall be provided with a control/indicator panel. The panel
shall be on the front of the UPS module. Controls, meters, alarms and
indicators for operation of the UPS module shall be on this panel.
SECTION 16265A
Page 25
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