2.2.3.2
Conduit Fittings
Conduit fittings shall be galvanized, high test, gray iron castings. [The
fittings shall be plastic coated in the same manner as outlined above for
the conduit.] Gaskets shall be furnished for all covers.
2.2.3.3
Conduit and Cabinet Supports
Conduit and cabinets shall be supported as required by NEMA C57.12.70.
The
supports shall be galvanized [and plastic coated in the same manner as
outlined above for the conduit].
2.2.4
Cabinets and Boxes
Cabinets and boxes shall be watertight, [galvanized] [stainless] steel,
NEMA 4X housings sized as required. The cabinet and box hubs shall be
consistent with the NEMA 4X rating of the box. Cabinets and boxes shall be
mounted such that the NEMA 4X rating is not compromised. Threads on the
hubs shall match the threads on the conduit [_____]. and shall be American
Standard. Metric threads will not be accepted. The cabinets and boxes
shall conform to UL 50.
2.2.5
Pump Motors
**************************************************************************
NOTE: Where motor starters are provided in motor
control centers, delete the reference to motor
starters.
**************************************************************************
The pump motors shall conform to the applicable requirements of NEMA MG 1,
except as hereinafter specified, and shall be designed to withstand full
voltage starting. The motor shall be of totally enclosed frame
construction and shall be fan cooled. A stainless steel drain-breather
similar and equal to Crouse-Hinds type "ECD Universal" shall be provided
and located so that any water present can be drained from inside the motor.
[The motors shall have encapsulated windings.] [Motor starters shall be
provided complete with properly sized thermal overload protection and other
appurtenances necessary for the motors specified.] Manual or automatic
control and protective or signal devices required for the operation, and
any control wiring required for controls and devices but not shown on the
electrical drawings, shall be provided.
2.2.5.1
Rating
The motors shall operate on [_____] volts, 60 Hz, 3 phase power and shall
be sized to operate the pumps specified in paragraph PUMPS. The motor
shall be designed to operate continuously without exceeding the temperature
rise permitted by the applicable NEMA standards for the class of insulation
and frame construction used.
2.2.5.2
Winding Insulation
The winding insulation shall be either class F or H [with special moisture,
fungus, and oil-proof treatment]. The winding insulation shall be of the
type designed and constructed to withstand the severe moisture conditions
and the wide range in ambient temperature to which the motors will be
subjected.
SECTION 15010A
Page 28
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