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Plenum exhaust considerations – Rockwell Automation 1512A MV Controllers, 400A One-High Cabinet, Standard and Arc-Resistant Enclosure User Manual

Page 77

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Rockwell Automation Publication 1512A-UM100F-EN-P - May 2013

69

ArcShield Unit Information

Appendix A

Figure 65 - Cross-section of Plenum Extension, dimensions in inches [mm]

Plenum Exhaust Considerations

The following options for locating the plenum exhaust are presented:

1. Plenum ducted to an area of the control room where arc gases are permitted

to escape, with plenum extensions (see

Figure 66

,

Figure 67

and

Figure 68

).

2. Plenum duct to outside of control room (see

Figure 66

and

Figure 67

).

Plan the location where the plenum will exhaust. Ensure that:

There is no access to personnel while equipment is energized.

Area is free of flammable material or vapors.

Ensure that adequate space is provided around the plenum exhaust, as outlined in

Figure 66

through

Figure 68

.

23 [584]

25 [633]

IMPORTANT

Be aware that equipment in the area of the plenum exhaust point will be
damaged or destroyed.