Nortel Networks Option 11C Mini manual Transformers without pluggable power cords

Page 62 of 332 Chapter 3 — System and site requirements

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.

553-3021-209 Standard 3.00 April 2000