Manual

Rockwell Automation Publication 1500-UM055G-EN-P - May 2013 75

ArcShield Unit Information Appendix A

Figure 73 - Chimney Exhaust Space Requirements

Minimum H1: 1.7 m (67 inches)

Minimum H: 1 m (39 inches)

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, or 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.