Page 48 - Occupational Health & Safety, November 2018

HEALTH CARE
By using correct labeling on critical equipment, facilities can get ahead of potential safety issues to ensure personnel are protected.
system stress
■ Complete system self-supervision
with health status communicated via Mod- bus and dry contacts
■ Anti-nuisance trip technology
■ Engineered-to-order configurations ■ UL 1558
■ Available in rear access and front ac-
cess switchgear configurations
■ Available in NEMA 1, NEMA 3R,
and traditional arc-resistant enclosure types Arc quenching switchgear meets and ex- ceeds ANSI/IEEE C37.20.7 Type 2B testing requirements with breakers removed and breaker, secondary, or cable compartment doors open, delivering the highest level of arc-resistant protection without the need for ducts, plenums, special enclosure construc-
tion, or venting into the room.
In addition to the benefits of arc
quenching switchgear in advancing arc flash safety, the technology also minimizes or eliminates damage to switchgear in the event of an arc fault, protecting valuable switchgear assets from arc flash damage. It is designed to reduce peak fault current by at least 25 percent and peak stress on upstream equipment by at least 44 percent when compared to a bolted fault device.
Finally, arc quenching switchgear re- duces downtime—an essential factor in health care facilities charged with prioritiz- ing patient care. The solution employs tech- nology that utilizes advanced algorithms to prevent nuisance operation of the Arc Quenching Device (AQD). Should an arc flash occur, restoring service can be accom- plished within hours.
Conclusion
Facilities across industries have been driv- en to improve arc flash prevention efforts, and the health care industry is no excep- tion. By leveraging available tools and re- sources and exploring new technologies, such as arc quenching switchgear, health care facility managers can help ensure up- time in their patient care facilities while advancing worker safety and maintaining compliance with any current and future regulations.
As global health care segment manager for Eaton, Justin Carron works with health care facility managers and executives to design power management strategies for hospitals, health networks and other organizations across the health care landscape.
These solutions meet and exceed test- ing requirements of the “IEEE C37.20.7, Guide for Testing Switchgear Rated Up to 52 kV for Internal Arcing Faults” standard by demonstrating acceptance even when breakers are removed, doors are open, and covers are removed, and without the need for ducts, plenums, or special enclosure construction.
Core features of these products are as follows:
■ Third party tested to ANSI/IEEE
C37.20.7, Type 2B test guide in standard NEMA 1 construction
■ Arc Quenching Device is a UL Rec- ognized Component per UL 2748
■ Short circuit withstand rating up to 85kAat635Vac
■ Short-time withstand current rat- ing, 85 kA for 30 cycles
■ <4 ms arc quenching time
■ Current limiting—at least 25 per- cent reduction in peak fault current
■ At least 44 percent reduction in peak
www.ohsonline.com
44 Circle 7 on card.