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Journal of Photonics for Energy

Fire hazard and other safety concerns of photovoltaic systems
Author(s): Neelkanth G. Dhere; Narendra S. Shiradkar
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Paper 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.

Paper Details

Date Published: 14 December 2012
PDF: 14 pages
J. Photon. Energy 2(1) 022006 doi: 10.1117/1.JPE.2.022006
Published in: Journal of Photonics for Energy Volume 2, Issue 1
Show Author Affiliations
Neelkanth G. Dhere, Univ. of Central Florida (United States)
Narendra S. Shiradkar, Univ. of Central Florida (United States)

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