Back-Up Power Supply  -  Electrical Technology Update

Instructions: Print this page first. Then read through each question. Click on the associated link. Find the answer to the question. Write the answer to the question in the space provided. Go on to the next question. 
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1. Why did the U.S. Consumer Product Safety Commission issue a recall for the  CPSC Power system?
 http://www.cpsc.gov/cpscpub/prerel/prhtml03/03068.html 


2. According to Thomas Register Directory, how many different versions does Leviton have available of UPS systems? 
 http://www.thomasregisterdirectory.com/power_supplies/backup_power_supplies_9608553_1.html

 

3. When selecting a battery type, how is a lead-acid battery described for application in a low temperature?
 http://www.condorpower.com/public/condor/pdfs/An118.pdf

 

4. With reference to battery chemistry, what is the given suggested storage charge state for a nickel metal hydride battery? 
 http://www.powerstream.com/CustUPS.htm

 


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