2.14
WELDING MATERIALS
Comply with ASME BPVC SEC II-C. Welding equipment, electrodes, welding
wire, and fluxes shall be capable of producing satisfactory welds when used
by a qualified welder or welding operator using qualified welding
procedures.
2.15
MOTORS AND DRIVES
Alternating current electric motors shall meet requirements of NEMA MG 1.
Motors shall be designed for continuous operation at rated load under usual
service conditions as defined by NEMA. Unless specifically noted
otherwise, motors less than 3/8 kW 1/2 hp shall be 115 volt, 60 Hz, single
phase, capacitor-start, or permanent split capacitor, with Class B
insulation for 40 degrees C 104 degrees F ambient. Unless specifically
noted otherwise, motors 3/8 kW 1/2 hp and larger shall be 460 volt, 60 Hz,
three phase, Design B, squirrel cage induction with a minimum insulation of
Class F for 40 degrees C 104 degrees Fambient. Size motors to meet the
power requirements of the driven unit at design conditions, including drive
and coupling losses which are incurred, without loading the motor beyond
its nameplate power rating. Minimum service factor for open drip-proof
motors shall be 1.15 and for totally enclosed, fan cooled motors 1.0.
Motor shall be quiet operating. Bearings shall be heavy duty, grease
lubricated, anti-friction, single shielded, regreasable type and shall have
approved lubricating fittings extended to an easily accessible location for
field servicing. Provide sole plates for motors installed on concrete
pads. Motors shall have copper windings.
2.16
SOURCE QUALITY CONTROL
2.16.1
Plant Equipment Tests
Tests specified below shall be conducted at factory prior to delivering
equipment to job site.
2.16.1.1
Plant Air Compressors
Test plant air compressors in service to determine compliance with contract
requirements and warranty. During the tests, test equipment under every
condition of operation. Test safety controls to demonstrate performance of
their required function. Completely test system for compliance with
specifications.
2.16.1.2
Instrument Air Compressors
Factory test air compressor package at full load for not less than 2 hours.
Check capacity, smoothness of operation, alternation of units, and proper
operation of the air unloaders during the test.
2.16.1.3
Variable Speed Motor Controller Factory Test
Burn-in tests shall be conducted for at least 50 hours at rated conditions.
If a component fails during the burn-in test it shall be replaced, and the
entire test shall be run again on the complete assembly for another 50
hours. The burn-in test shall not be complete until the entire assembly
has operated for 50 hours without failure.
SECTION 15511N
Page 77
Previous Page
