627-500
3
INTRODUCTION
Ç
CAUTION—Continued
6. Do not remove or obscure any of the “CAUTION,” “DANGER,” or other precautionary
signs and labels.
7. Make certain hanging barriers are in place unless work is being performed inside a
module.
8. Make certain all switchgear modules are properly grounded.
9. Make certain fuses are disconnected from all power sources (including backfeed)
before being inspected or replaced.
10. Test for voltage and install suitable grounding equipment before touching any device
that is to be inspected, serviced, or repaired. Voltage testers suitable for this purpose
are available from S&C.
11. Always assume both sets of power terminals on switch, fuse, or terminal connections
are energized unless proved otherwise by test or visual evidence.
12. Disconnect all voltage transformers and voltage sensors when external voltage is
used to test any secondary-side wiring or when heaters are energized for temporary
storage. Do not disconnect voltage limiters from voltage sensors when the switchgear
is energized.
Read this
Instruction Sheet
Read this instruction sheet thoroughly and carefully before installing or operating your
S&C PMX Modular Metal-Enclosed Switchgear. Familiarize yourself with “SAFETY
INFORMATION” on pages 5 through 7.
Retain this
Instruction Sheet
This instruction sheet is a permanent part of your S&C PMX Modular Metal-Enclosed
Switchgear. Designate a location where you can easily retrieve and refer to this
publication.
Proper Application
Ç
CAUTION
The equipment in this publication must be selected for a specific application. The
application must be within the ratings of the equipment. Ratings for this gear are listed
on a ratings label located on the outside of the switchgear.