Operational display null of the lightening protection insulator in the resistance lightning horn insulator

摘要

PURPOSE:To reduce installation cost of an actuation display and improve maintenance convenience by installing two actuation displays and employing a detachable connector between the actuation display and an actuation current sensor. CONSTITUTION:Judging from past records of actuations, an antilightning horn porcelain arrangement is able to display the number of actuations accurately even if two actuation displays 44, 44 are installed. A detachable connector 60 is inserted in the middle of a cable 52 between an actuation current sensor 30 and the actuation display 44 so that the actuation display after actuation can be easily replaced. This eliminates the need for installing excessive number of expensive actuation displays, accordingly reducing cost and making the maintenance convenient.