2.1.2
Electrical Equipment
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NOTE: Indicate the type and class of motor
enclosure depending on the environment in which the
motor is to be used.
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Electric motor-driven equipment specified shall be provided complete with
motors and necessary motor control devices. Motors, motor control devices,
and power supply wiring shall conform to Section 16402 INTERIOR
DISTRIBUTION SYSTEM including requirements for hazardous area locations.
Unless otherwise indicated, motors of 1 hp and above shall be high
efficiency type. A complete electrical connection diagram for each piece
of mechanical equipment having more than one automatic or manual electrical
control device shall be submitted for approval before installation. Motors
shall be provided with enclosures as indicated.
2.1.2.1
Motor Ratings
Motors shall be suitable for the voltage and frequency provided. Motors
373 W 1/2 horsepower and larger shall be three phase, unless otherwise
indicated. Ratings shall be adequate for the duty imposed, but shall not
be less than indicated. Motors shall conform to NEMA MG 1 with enclosure
as specified. Motors smaller than 746 W Fractional horsepower motors shall
be Type I, Class 1B or Class 2A or 2B, Continuous Duty. Motors larger than
746 W Integral horsepower motors shall be Type I or II, Class 2 Continuous
Duty, Design L or M.
2.1.2.2
Motor Starters
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NOTE: Where motor starters for mechanical equipment
are provided in motor control centers, delete the
reference to motor starters.
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Where a motor starter is not shown in a motor control center on the
electrical drawings, a motor starter shall be provided. Where required,
motor starters shall be provided complete with properly sized thermal
overload protection and other equipment at the specified capacity,
including an allowable service factor and other appurtenances necessary for
the motor control specified. Manual or automatic control and protective or
signal devices required for operation specified and any wiring required to
such devices, not shown on the electrical drawings, shall be provided.
Where two-speed or variable-speed motors are indicated, solid state
variable-speed controllers may be provided to accomplish the same function.
2.1.3
Boiler Design Requirements
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NOTE: Indicate whether the boiler should be
fire-tube, water-tube, or can be either one.
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Each boiler shall be suitable for indoor installation and shall include a
heat recovery [fire] [water]-tube section and a steam separator. Tube
section shall be designed so the tubes are installed in an arrangement that
will permit ease of access and replacement. Boilers shall be fired with
SECTION 15846A
Page 18
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