Rockwell Automation 1512A MV Controllers, 400A One-High Cabinet, Standard and Arc-Resistant Enclosure - Manual (Page 77)

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.