Ac Power Receptacles Grounding; Additional Methods For Ac Power; Relaxed/Power Conditioned Ac Power System - Oracle MICROS 700 Series Site Preparation Manual

the isolated ground bus bar in the panel and on the equipment grounding terminal of a
NEMA IG5-15 isolated grounding type receptacle.

AC Power Receptacles Grounding

In order to maintain isolation of the equipment grounding conductor from the conduit
system, use an isolated ground receptacle. This type of receptacle (usually identified
by an orange face) provides an insulating barrier between the equipment grounding
terminal and the receptacle mounting strap. Terminate all branch circuits from the
MICROS power panels with isolated ground receptacles.
Standard receptacles bond the equipment grounding terminal (green screw) to the
receptacle mounting strap and metallic conduit when the receptacle is mounted to the
box. This defeats the purpose of the isolated grounding system. Do not install an
equipment bonding jumper from the receptacle grounding terminal to the outlet box.
(NEC Article 250-74, Exception 4 permits the installation of the isolated ground
receptacles and isolated equipment grounding conductors specified in this section.)
If a duplex receptacle is installed and only one socket is used, disconnect the unused
socket to prevent the temptation of using the outlet for equipment that produces
extraneous ground currents (e.g., floor buffers, blenders, vacuum cleaners, etc.). The
correct isolated ground receptacle types are listed below.
Table 22-1
Receptacle Type
125V, 15A, Simplex
125V, 15A, Duplex

Additional Methods for AC Power

This section provides alternate methods of supplying AC power to the MICROS POS
System.
•

Relaxed/Power Conditioned AC Power System

• Power Conditioned AC Power System
Relaxed/Power Conditioned AC Power System
When providing the Preferred AC Power System is cost prohibitive and/or would
require major structural changes, we have defined a relaxed AC Power System based
on Oracle MICROS Approved Power Conditioners. However, the Preferred AC
Power System is recommended by Oracle MICROS.
The Relaxed/Power Conditioned AC Power System is described as follows:
• MICROS-approved Power Conditioners are required at all MICROS equipment
locations.
• MICROS-approved Uninterruptable Power Conditioners (UPC) are required at
each server.
• Ensure all MICROS AC Power branch circuits originate from the same Non-
Dedicated Power Panel. Ensure this Panel is equipped with an isolated ground
– Isolated Ground Receptacles
Additional Methods for AC Power
NEMA Part Number
IG5-15R1
IG5-15R2
Chapter 22
22-4