China Jn15-12 31.5 Indoor AC High Voltage Earth Switch

JN15-12(7.2)/31.5 Indoor AC High Voltage Earth Switch
JN15-12(7.2)/31.5 type high voltage AC earth switch is a new developed product with international advanced level.Its structure is the assembly type.Comprehensive assessment,features are desirable inthe demands of the GB1985-2014 High Voltage AC Isolation Switch and Earth Switch and IEC32271-10:2002.Be appropriare for 43kV-12kV three-phase AC 50Hz in the power system.It has a close short circuit ability to protect switch equipment within the other electrical equipment from being damaged,also as a high voltage electrical equipment maintenance earthing protection.
Main Technical Parameter

ItemUnitDataRated VoltagekV 12Rated short-time withstand currentkA31.5Rated short circuit durations4Rated short-circuit currentkA80Rated peak withstand currentkA80Rated insulation levelPF withstand voltage(1min)kVExtreme to earth phase to phase42Lightning impulse withstand voltage75Mechanical endurancetime3000

Matching Table

ModelABCDJN12-12/31.5-150150424535396JN12-12/31.5-165165454565426JN12-12/31.5-190190504615476JN12-12/31.5-200200524635496JN12-12/31.5-210210544655516JN12-12/31.5-230230584695556JN12-12/31.5-250250624735596JN12-12/31.5-275275674785646