Case and analysis of distribution grid electrical
fire under small/micro current

Fire Science and Technology ›› 2020, Vol. 39 ›› Issue (1): 139-141.

Case and analysis of distribution grid electrical fire under small/micro current

ZHANG Yun-yong1 , FAN Ming-hao2 ,CHEN Jin3 ,WANG Wen-qing4

1.Anhui Beidou E- top Information Technology Co., Ltd., Anhui Hefei 230088, China;2.Electric Power Research Institute of State Grid Anhui Electric Power Co., Ltd.,Anhui Hefei 230601, China;3.Shangdong Kang Run Electric Co., Ltd.,Shandong Zibo 255000, China;4.Shenyang Fire Research Institute of MEM, Lia⁃ oning Shenyang 110034,China

Received:2019-08-25 Online:2020-01-15 Published:2020-01-15

Abstract

Abstract: Combing with the real fire case and statistical data, the reason for electrical fire in distribution grid under small/micro current is theoretical analyzed. A test platform was built to verify the theory. Research results showed that, in the case of no power over compensation, if there is weak point in the user's line, and if the line resonates, it may cause fire. The study provides a novel technique to reveal the reason for electrical fire in distribution grid.

Key words: micro- current, electrical fire, resonance, over voltage, fire investigation

ZHANG Yun-yong , FAN Ming-hao , CHEN Jin , WANG Wen-qing. Case and analysis of distribution grid electrical fire under small/micro current[J]. Fire Science and Technology, 2020, 39(1): 139-141.

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Case and analysis of distribution grid electrical fire under small/micro current

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