Specifications

PIP ELTFT01
Field Inspection and Testing of March 2001
New Electrical Equipment
Process Industry Practices Page 18 of 23
12.1.4 Check motor shaft for free rotation.
12.1.5 Check motor bearings for proper lubrication.
12.1.6 Check motor bearing isolation.
12.1.7 Check all components for proper identification according to the drawings
and specifications.
12.1.8 Check all equipment items for conformance to area classification.
12.1.9 Check that resistance temperature detectors (RTDs) conform to drawings.
12.1.10 Check motor residual CTs for proper rating and connections.
12.1.11 Check motor surge capacitors and arresters for ratings and connections.
12.2 Equipment and Installation Inspection Items
12.2.1 Inspect motor bearing lubrication system.
12.3 Testing Requirements
12.3.1 The following tests shall be performed before connecting any wiring:
1. For motors rated 600 volts and below, test insulation resistance of each
motor with a 1-minute test using a 1000-volt insulation tester.
2. For motors rated over 600 volts, test insulation resistance of each motor
with a 10-minute dielectric absorption test. (For a three-lead motor, test
motor windings to ground. For a six-lead motor, tie leads together and
test windings to ground.)
3. For motors rated 4000 volts and above and 1000 hp and above, test
dielectric with DC high-potential test according to ANSI/IEEE Std. 95.
12.3.2 For motors rated 600 volts or less, test insulation resistance of motor power
cables plus motor following makeup of leads at motor with a 1-minute test.
12.3.3 For motors rated over 600 volts, test insulation resistance of motor power
cable plus motor following makeup of leads at the motor with a 10-minute
dielectric absorption test. Surge capacitors and arresters, if installed, must be
disconnected.
12.4 Function Test Items
12.4.1 With motor uncoupled, verify proper rotation of motor.
Note: When canned pumps are applied, comply with the manufacturer’s
requirements for this equipment.
12.4.2 For motors rated 600 volts or less, with motor uncoupled, perform 30-minute
run-in test on each motor.
1. Record no-load current.
2. Record bearing temperatures and vibration levels.