Emerson Process Management Bristol ControlWave ExpressPAC - Manual (Page 23)

ControlWave ExpressPAC Instruction Manual (CI-ControlWave EPAC)
Revised Mar-2011 Installation 2-9
2.2.2 Grounding the Housing
The ControlWave ExpressPAC enclosure includes a ground lug that
accommodates up to a #4 AWG wire size. Once you install the unit, run
a ground wire between the enclosure’s ground lug and a known good
Earth ground. For more information on grounding see the ControlWave
Grounding Supplement (S1400CW):
Additional grounding guidelines include:
 Use stranded copper wire (#4 AWG) to earth ground, and keep the
length as short as possible.
 Clamp or braze the ground wire to the ground bed conductor
(typically a stranded copper AWG 0000 cable installed vertically or
horizontally).
 Using a high-wattage soldering iron, tin the ground wire with solder
before you insert it into the chassis ground.
 Run the ground wire so that any routing bend in the cable has a
minimum radius of 12-inches below ground and 8-inches above
ground.