Open AccessResearch on Aging and Burning Performance of AC 380V ZR-YJV Cable Insulation sheat
Author(s) -
Minjiang Chen,
Yang Liu,
Lingao Jiang,
Zhidong Huang,
Yang Liu
Publication year - 2021
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1871/1/012042
Subject(s) - ignition system , materials science , cone calorimeter , composite material , thermal insulation , combustion , nuclear engineering , electrical engineering , chemistry , engineering , char , organic chemistry , layer (electronics) , aerospace engineering
Carrying out research on the aging and burning performance of cable insulation sheath is an important means to prevent cable fires. The thermal aging test box, cone calorimeter and synchronous thermal analyzer were used to study the effect of thermal aging on the combustion performance of AC 380V ZR-YJV cable insulation sheath. The results show that in the early stage of thermal aging of the cable, the ignition time of the YJV cable insulation sheath material gradually increases; compared with unaged cables, the ignition time of cables being aged for 15 days has increased from 8 seconds to 57 seconds while the initial peak value of the heat release rate of the cable decreased from 123 kW/m 2 to 22 kW/m 2 . A large amount of easily decomposable additives in the early stage of thermal volatilized from aging cable sheath may be responsible for the reduction trend of the ignition and fire occurrence of the cable insulation sheath. And for the condition of the aging time increasing, the ignition time decreases from 57s to 32s, and the heat release rate will increase from 22 kW/m 2 to 85 kW/m 2 in which the ignition and fire trend of the cable insulation sheath increase.