h.
provision for jacking, lifting, and towing.
i.
diagram and rating nameplate.
2.9.1.3
Integral Outgoing Section
**************************************************************************
NOTE: In Unit Substation construction consisting of
a transformer and low-voltage equipment, the
low-voltage section must be integral or mechanically
connected with the transformer and must be a busway
throat compartment; an integral, dead-front,
distribution switchboard/panelboard compartment; or
a group of low-voltage, metal-enclosed switchgear.
For comparison, nonintegral substation construction
consists of free-standing elements (primary
switch/transformer/secondary protection) connected
by cables. Specify cable compartments when
free-standing elements (nonintegral substation
construction) are used.
Specify a busway throat compartment and associated
busway when the low voltage switchboard or
switchgear must be located remote from the
transformer and a compact, high ampacity connection
is required.
Specify an integral, dead-front, distribution
switchboard (typically front and rear accessible,
with instruments, for larger installations) or
panelboard (typically front accessible only, for
smaller installations) when stationary-mounted,
nondrawout, molded case circuit breakers are
required and the number of feeders/branches requires
only one or two panels.
Specify a mechanical, bus-bar-throat connection to a
group of low voltage switchgear when large, high
capacity, drawout type, low voltage power circuit
breakers are required.
Specify individual watthour demand meters for
transformers rated 750 kVA and above.
Specify ground fault protection only when required
by NFPA 70. See TM 5-811-14 for guidance on GFP
devices with double-ended substations.
Incorporate the low-voltage power circuit breaker
paragraphs from UFGS-16475A COORDINATED POWER SYSTEM
PROTECTION if UFGS-16475A is not part of the project
specifications. Delete appropriate paragraphs of
this section if 16475A is included.
**************************************************************************
Integral outgoing section shall be of the [busway throat compartment]
[dead-front distribution panelboard/switchboard] [metal-enclosed
switchgear] type. Each circuit breaker and auxiliary compartment shall
SECTION 16375A
Page 30
Previous Page
