Enclosure Grounding and Bonding

DOE-HDBK-1092-98

9.3.3 ENCLOSURE GROUNDING AND BONDING

Enclosure grounding and bonding should comply with the following requirements: (See Figs. 9-1

thru 9-3)

1) Have a common grounding or bonding bus (normally a cabinet rail).

RACK CABINET

Cabinet rails used for

bonding/grounding

chassis

These chassis shall be

Bonding Conductor

bonded/grounded internally

from the ground wire in cord

Identified equipment

ground points.

Required for

these chassis.

Bonding Conductor

NRTL listed or labeled

Power Distribution Unit

Required bonding/grounding

Note: Chassis or equipment

(Same gauge or larger

drawing current from the

than AC power cable)

Power Distribution Unit

AC Outlets

within the rack is called

Utilization Equipment

Neutral

3 Phases

Ground

Protective cover

removed from

connection box

Compression

Clamp

AC power cable

Note: This drawing represents typical 120/208 Volt,

Three Phase Wye, 5 wire, ac power.

Figure 9-1

9-3