Meridian Nortel 1 Option 11C Mini Installation Manual page 62

Page 62 of 332 Chapter 3 — System and site requirements
553-3021-209 Standard 3.00
Transformers without pluggable power cords
If the transformer does not have a pluggable cord, hardwire the transformer
to an electrical panel. Route all wires (including grounds) through a single
conduit.
Some electrical codes permit the use of conduit as the only ground conductor
between pieces of equipment.
Run a separate insulated ground conductor through the conduit to hold chassis
grounds together. Such a conductor maintains the safety ground connection
in the event that the conduit becomes corroded or disconnected.
Run all ground lines through the same conduit as the phase conductors that
serve the equipment. Figure 8 on page 63 shows the Isolation transformer
connections.
April 2000