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ASCO Receives Seismic Certification

Posted on April 29, 2014

Emerson Network Power said its new ASCO NEMA 3R outdoor enclosure for the entire line of ASCO Power Control Systems has been certified to 2012 International Building Code (IBC) seismic requirements.

“Certifying to 2012 IBC seismic requirements shows ASCO Power Control Systems are robust, yet flexible enough to withstand severe seismic events,” said Brian Escott, director of project management for Emerson Network Power's ASCO Power business.

A QR Code on the IBC seismic label affixed to the enclosure provides quick access to the Certificate of Compliance via a smart phone or other Web-enabled handheld device. Referencing actual documents eliminates frequent confusion about which specific IBC seismic requirements that non-structural equipment, such as power control systems, meet.

The documents are posted to www.ibcapproval.com, which shows ASCO Power Control Systems are the only paralleling switchgear certified to 2.46, the 2012 IBC maximum standard ground acceleration requirement. Revisions or other additional information will be posted to the site, which eliminates searching for hard-copy documents and wondering whether they are up to date. 

The ASCO NEMA 3R enclosure for ASCO 7000 Series, 4000 Series and Series 300 Power Control Systems qualified after successfully completing rigorous, independent testing on a tri-axial seismic simulator, or shake table, the company said. Testing adhered to strict AC156 criteria for non-structural systems and components.

The simulated events can sway an enclosure up to three inches in three directions. Mounting bolts remained seated and doors remained closed even though forces exceeded IBC ground acceleration requirements.

The enclosure can house any ASCO Power Control System module: master control, single generator with master control, single generator, and dual generator. 

Seismic certification for the NEMA 3R enclosure follows certification of ASCO Power Control Systems in NEMA 1 enclosures. During those tests, the systems were ‘live’ and operated throughout the simulated seismic event, even though IBC codes do not require such operation.

Test results are being submitted to California’s Office of Statewide Health Planning and Development (OSHPD) seeking certification to its standards. OSHPD maintains the most stringent seismic requirements in the country.

www.emersonnetworkpower.com/ASCO

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