Repetitve nanosecond impulses in gas-insulated metal-enclosed switchgear (GIS) are likely to trigger inside flashover. Interface charges on the spacer in GIS are considered one of the main factors damaging insulation performance and may be induced by overvoltage. For good understanding of insulation failures. accumulation characteristics of charges between SF6 and epoxy spacers under ... https://www.stnicksknives.shop/product-category/automatic-knives/