Allen-Bradley 1512B, Руководство пользователя

Страница: 79 / 108

Rockwell Automation Publication 1500-UM055I-EN-P - December 2021 79
Appendix A ArcShield Unit Information
Figure 70 - 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 71 , Figure 72
and Figure 73 ).
2. Plenum duct to outside of control room (see Figure 71 and Figure 72 ).
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 71 through Figure 73 .
23 [584]
25 [633]
IMPORTANT
Be aware that equipment in the area of the plenum exhaust point
will be damaged or destroyed.