近几年,在我国不论是乡村还是城镇,电气引起的火灾都猛增,占火灾总数的20%以上,已上升为世界第一位。在电气引起的火灾中,电气线路引起的火灾占了60%,而低压电气线路引起的火灾又占电气线路引起的火灾的90%以上。尽管引起火灾的低压电及低压电气属 In recent years, no matter in rural areas or cities and towns in our country, electric fires have soared, accounting for more than 20% of the total number of fires and have risen to the top in the world. In electrical fires, electrical lines cause 60% of the fires, while low voltage electrical lines cause more than 90% of the fires caused by electrical wiring. Despite the low-voltage and low-voltage electrical conditions that caused the fire