Rockwell Automation Publication 1560F-UM001A-EN-P - June 2019 255
ArcShield Unit Information Appendix D
Figure 81 - Chimney Exhaust Space Requirements
Minimum H1: 1.7m (67”)
Minimum H: 1m (37”)
Additional Notes
The walls of the plenum exit area must be capable of withstanding the pressure
generated.
Any painted surfaces which face direct contact with the arc products may ignite.
Flame suppression is recommended.
The exit point can also be outside the building. Ensure exit area can not be
blocked by ice, snow, vermin nests.
Access barriers are recommended as a means of restricting access by personnel
while the equipment is energized. Chain link fencing is a suitable barrier material.
Equipment that consists of more than 4 vertical sections bolted together may
require additional plenum exits. Rockwell Automation will provide guidance on
requirements for additional plenum exits when required.
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