76
Rockwell Automation Publication 2100-IN012D-EN-P - September 2010
Chapter 7
Final Checklist Before Energizing
Next, check the field wiring; for example, motor cables and incoming line
cables. Insulation resistance values are affected by temperature, humidity,
or dampness, which may cause a considerably lower insulation resistance
reading. If the insulation resistance values are below 1 M
Ω
(for example,
affected by dampness, temperature, or humidity) or the MCC has been
stored in a damp or humid area, we recommend that the equipment be
dried out. Dry out the motor cables by injecting a low voltage current or by
using space heaters.
Once the equipment is dry, repeat the insulation resistance test. The
minimum value for insulation resistance on a new installation at startup or
energizing is 1 M
Ω
. These readings may be recorded in the
Megger
Reading Recording Table
. This table allows for additional megger readings
to be recorded during regular maintenance periods.
20.
Check that all arc-resistant parts are installed.
See
ArcShield Components
for more information.
21.
Check that all unit latches are secure.
See
for more information.
22.
Close and latch all doors, making certain that no wires are pinched.
23.
Check that all section closing plates are in place.
Certain applications may have latch requirements different from those provided.
If you have questions regarding proper latching, contact Rockwell Automation
LV MCC Technical Support at 1.440.646.5800 and follow the prompts to Allen-
Bradley>Low Voltage Motor Control Centers>Post Shipment Support.
Refer to the following illustrations for various latch placements.
Содержание Allen-Bradley CENTERLINE 2100
Страница 1: ...Installation Instructions CENTERLINE 2100 Low Voltage Motor Control Centers Catalog Number 2100 ...
Страница 4: ...4 Rockwell Automation Publication 2100 IN012D EN P September 2010 Summary of Changes Notes ...
Страница 22: ...22 Rockwell Automation Publication 2100 IN012D EN P September 2010 Chapter 1 General Information Notes ...
Страница 98: ...98 Rockwell Automation Publication 2100 IN012D EN P September 2010 Chapter 11 Renewal Parts Notes ...
Страница 106: ...106 Rockwell Automation Publication 2100 IN012D EN P September 2010 Index ...
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