McGrattan, K.
, Leventon, I.
, Bareham, S.
and Taylor, G.
(2025),
Thermal Exposure of Objects Near Burning Electrical Enclosures, Technical Note (NIST TN), National Institute of Standards and Technology, Gaithersburg, MD, [online], https://doi.org/10.6028/NIST.TN.2320r1, https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=960596
(Accessed September 13, 2025)
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Thermal Exposure of Objects Near Burning Electrical Enclosures
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Abstract
This report documents a series of fire experiments performed within steel electrical enclosures and on open "ladder back" cable trays. The first objective is to measure the heat release rates and qualitatively understand the burning behavior of circuit breaker fires within closed steel enclosures when ignited by a source representative of a high energy arc fault (HEAF). The second objective of this report is to quantify the thermal exposure of electrical cables that typically are installed in trays above an enclosure.Citation
Technical Note (NIST TN) - 2320r1
Report Number
2320r1
NIST Pub Series
Pub Type
NIST Pubs
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Keywords
Circuit Breaker, Electrical enclosures, Electrical fires, High Energy Arc Fault (HEAF), Switchgear.
Citation
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Created September 11, 2025