inspect the installation for contract compliance.
Contractor shall correct
installation deficiencies as directed.
3.1.1
Control Cable
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NOTE: UPS sizes 200 KVA and above are shipped in
sections. Control wiring between module sections
will be connected by the UPS manufacturer's
technical representative.
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UPS control wiring shall be stranded type and must be installed in
individual separate rigid steel conduits. Tag control wires with numeric
identification tags corresponding to the terminal strip location to where
the wires are connected. In addition to manufacturer's requirements,
provide four additional spare conductors between UPS module and remote
alarm panel in same conduit. When routing control cables inside UPS
module, maintain a minimum 155 mm 6 inches separation from power cables.
3.1.2
Grounding Conductor
Provide an insulated equipment grounding conductor in feeder and branch
circuits. Conductor shall be separate from the electrical system neutral
conductor. Ground battery racks and battery breaker cabinets with a
separate equipment grounding conductor to the UPS cabinet.
3.1.3
UPS Output Conductors
Isolate the UPS output conductors from the UPS cabinet to the critical load
panels and from other conductors by installing in separate conduit.
Isolation shall prevent inductive coupling from other conductors.
3.1.4
DC Power Conductors
When installed in conduits, place DC power conductors from the UPS cabinet
to the battery circuit breaker such that each conduit contains an equal
number of positive and negative conductors, for example, two positive and
two negative conductors in each conduit.
3.1.5
Emergency Control Contacts
Provide normally open contacts for each UPS system to signal when power is
supplied to the UPS from emergency engine generators. Installation shall
conform to manufacturer's installation drawings.
3.1.6
Cable Lugs
Provide appropriate compression type lugs on all AC and DC power
connections to the UPS system and battery as required. Aluminum or bare
copper cable lugs are not suitable.
3.1.7
Seismic Protection
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NOTE: If zone is not considered to be seismic, text
below shall be deleted. If seismic zone, applicable
local regulations shall be referenced.
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SECTION 16262N
Page 8
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