Specifications - State of Delaware

SECTION 262900 - MOTOR CONTROLLERS, CONTACTORS, PUSH BUTTONS, SELECTOR
SWITCHES, INDICATING LIGHTS AND RELAYS: continued
3.03 FIELD QUALITY CONTROL:
A. Provide the on-site services of the manufacturer's service representative for the direct
supervision of inspection, start-up, final adjustments, operational tests functional tests and
Contracting Officer training of all variable frequency drives. Provide 16 hours of on-site
training of the Contracting Officer's personnel on the start-up, operation, trouble-shooting,
servicing, and preventative maintenance of the variable frequency drives. Submit all meter
readings and field test results.
B. Prior to energization of motor controller equipment, check with insulation resistance tester and
phase-to-phase and phase-to-ground insulation resistance levels to ensure requirements are
fulfilled.
C. Check all equipment grounds for continuity.
D. Remove all blocking used for shipment.
E. Check motor overload relays for proper current range in accordance with motor nameplate full
load amperes. Adjust relays for manual reset.
F. Check motor starter and control relay coils for proper operating voltage.
G. Clean all contacts and magnetic surfaces.
H. Check all auxiliary contacts for proper arrangement (NO or NC).
I. Test each pole of starter for freedom from grounds.
J. Check all fuses and circuit breakers for proper rating.
K. Check connectors for tightness.
L. With motor disconnected, energize control circuits and test for correct operation.
M. Adjust timing cycle of all time delay relays.
N. Prior to energization, check circuitry for electrical continuity and for short-circuits.
O. Ensure that direction of rotation of each motor fulfills requirements. Correct if necessary.
3.04 GROUNDING:
A. Provide equipment grounding connections for motor controller and control equipment as
indicated. Tighten connections to comply with tightening torques specified in UL Standard
486A to assure permanent and effective grounding. Grounding shall conform with
SECTION 260526.
3.05 ADJUSTING AND CLEANING:
A. Adjust operating mechanisms, where necessary, for free mechanical movement.
B. Touch-up scratched or marred enclosure surfaces to match original finishes.
C. Adjust motor circuit protector trip settings (when provided) in accordance with the
manufacturer's instructions.
3.06 IDENTIFICATION:
A. Provide identification for motor controllers and controls as specified in SECTION 260553 -
ELECTRICAL IDENTIFICATION.
262900-8 DEAN262900.DOC