Hospital meets critical power needs

Phoenix Children's Hospital's emergency power supply system must meet emergency standby requirements for both a healthcare facility and a high-rise building.

09/15/2011


Phoenix Children’s Hospital in Phoenix is both a healthcare facility and a high-rise building. As such, the facility’s emergency power supply system (EPSS) must meet emergency standby requirements for both types of facilities. To meet these requirements the facility has a remote central energy plant housing most of its EPSS. The emergency power supply (EPS) consists of three 2 MW generators and medium-voltage paralleling gear and distribution. Unit substations are located throughout the facility with automatic transfer switches (ATS) located downstream of unit substation. Any of the three 2 MW generators can accommodate the requirements of NFPA 70 and NFPA 99 for the life safety branch and critical branch for the entire facility. There are also a variety of stored emergency power supply systems (SEPPSS).

With more than 1 million sq ft of space, the campus expansion will make Phoenix Children’s Hospital one of the largest freestanding children’s hospitals in the country. Courtesy: ccrd partners

The EPSS serves all of the required fire protection and life safety systems including voice communications, fire detection and alarm system, electric fire pump, emergency fire command center, exit signs, means of egress illumination, power operated doors, and mechanical stair shaft ventilation systems for smoke-proof enclosures. The EPSS also serves all other functions required under NFPA 70 Article 517.

There are a variety of SEPSS battery systems used throughout the facility. There is a central inverter to provided egress lighting in the main lobby, emergency battery ballast used in rooms where patients are anesthetized, and a centralized UPS for the data center.

This shows the paralleling gear in Phoenix Children’s Hospital emergency switchgear room. Courtesy: ccrd partners

Multiple system tests were performed to ensure that each of the required systems would operate correctly when different events occurred. A variety of different test were conducted including power outages, remote power transfer on ATS from the command center, smoke detector activation, pull station activation, duct detectors activation, and fire pump test to ensure the proper system function.

Grimm is associate principal and project manager with ccrd partners in the Phoenix office. He is the lead electrical engineer, and leads the electrical design of different projects including hospitals, institutional facilities, and office buildings.



No comments
The Top Plant program honors outstanding manufacturing facilities in North America. View the 2013 Top Plant.
The Product of the Year program recognizes products newly released in the manufacturing industries.
The Engineering Leaders Under 40 program identifies and gives recognition to young engineers who...
The true cost of lubrication: Three keys to consider when evaluating oils; Plant Engineering Lubrication Guide; 11 ways to protect bearing assets; Is lubrication part of your KPIs?
Contract maintenance: 5 ways to keep things humming while keeping an eye on costs; Pneumatic systems; Energy monitoring; The sixth 'S' is safety
Transport your data: Supply chain information critical to operational excellence; High-voltage faults; Portable cooling; Safety automation isn't automatic
Case Study Database

Case Study Database

Get more exposure for your case study by uploading it to the Plant Engineering case study database, where end-users can identify relevant solutions and explore what the experts are doing to effectively implement a variety of technology and productivity related projects.

These case studies provide examples of how knowledgeable solution providers have used technology, processes and people to create effective and successful implementations in real-world situations. Case studies can be completed by filling out a simple online form where you can outline the project title, abstract, and full story in 1500 words or less; upload photos, videos and a logo.

Click here to visit the Case Study Database and upload your case study.

Maintaining low data center PUE; Using eco mode in UPS systems; Commissioning electrical and power systems; Exploring dc power distribution alternatives
Synchronizing industrial Ethernet networks; Selecting protocol conversion gateways; Integrating HMIs with PLCs and PACs
Why manufacturers need to see energy in a different light: Current approaches to energy management yield quick savings, but leave plant managers searching for ways of improving on those early gains.

Annual Salary Survey

Participate in the 2013 Salary Survey

In a year when manufacturing continued to lead the economic rebound, it makes sense that plant manager bonuses rebounded. Plant Engineering’s annual Salary Survey shows both wages and bonuses rose in 2012 after a retreat the year before.

Average salary across all job titles for plant floor management rose 3.5% to $95,446, and bonus compensation jumped to $15,162, a 4.2% increase from the 2010 level and double the 2011 total, which showed a sharp drop in bonus.

2012 Salary Survey Analysis

2012 Salary Survey Results

Maintenance and reliability tips and best practices from the maintenance and reliability coaches at Allied Reliability Group.
The One Voice for Manufacturing blog reports on federal public policy issues impacting the manufacturing sector. One Voice is a joint effort by the National Tooling and Machining...
The Society for Maintenance and Reliability Professionals an organization devoted...
Join this ongoing discussion of machine guarding topics, including solutions assessments, regulatory compliance, gap analysis...
IMS Research, recently acquired by IHS Inc., is a leading independent supplier of market research and consultancy to the global electronics industry.
Maintenance is not optional in manufacturing. It’s a profit center, driving productivity and uptime while reducing overall repair costs.
The Lachance on CMMS blog is about current maintenance topics. Blogger Paul Lachance is president and chief technology officer for Smartware Group.