Rockwell Automation Publication 1560F-UM001A-EN-P - June 2019 253
ArcShield Unit Information Appendix D
Figure 78 - Cross-section of plenum extension, dimensions in mm [inches]
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 79
, Figure 80 and
Figure 81
).
2. Plenum duct to outside of control room (see Figure 79
and Figure 80).
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 79
through Figure 81.
IMPORTANT Be aware that equipment in the area of the plenum exhaust point will be
damaged or destroyed.
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