Special Section on Reliability of Photovoltaic Cells, Modules, Components, and Systems

Fire hazard and other safety concerns of photovoltaic systems

[+] Author Affiliations
Neelkanth G. Dhere

University of Central Florida, Florida Solar Energy Center, 1679 Clearlake Road, Cocoa, Florida 32922

Narendra S. Shiradkar

University of Central Florida, Florida Solar Energy Center, 1679 Clearlake Road, Cocoa, Florida 32922

J. Photon. Energy. 2(1), 022006 (Dec 14, 2012). doi:10.1117/1.JPE.2.022006
History: Received February 28, 2012; Revised October 31, 2012; Accepted November 7, 2012
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Abstract.  Photovoltaic (PV) modules are usually considered safe and reliable. But in case of grid-connected PV systems that are becoming popular, the issue of fire safety of PV modules is becoming increasingly important due to the employed high voltages of 600 to 1000 V. The two main factors, i.e., open circuiting of the dc circuit and of the bypass diodes and ground faults that are responsible for the fire in the PV systems, have been discussed in detail along with numerous real life examples. Recommendations are provided for preventing the fire hazards such as designing the PV array mounting system to minimize the chimney effect, having proper bypass and blocking diodes, and interestingly, having an ungrounded PV system.

© 2012 Society of Photo-Optical Instrumentation Engineers

Citation

Neelkanth G. Dhere and Narendra S. Shiradkar
"Fire hazard and other safety concerns of photovoltaic systems", J. Photon. Energy. 2(1), 022006 (Dec 14, 2012). ; http://dx.doi.org/10.1117/1.JPE.2.022006


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