JN15-12/31.5 series indoor HV Earth Switch is advance product for collective high technology on the world. Through comprehensive examine, the feature comply with GB1985-89< AC HV disconnecting switches and earth switches >and IEC129 standard, suitable for power system with 12KV and blow AC 50Hz, support with kinds of HV switchgear and as earth protection.
Item Units Data
Rated voltage kV 12
Rated short time tolerance current kA 31.5
Rated short circuit duration time s 4
Rated short circuit closing current kA 80
Rated peak value tolerance current kA 80
Rated isolation lever 1min working voltage tolerance kV Phase earth and inter phase 42
Lightning Impulse voltage tolerance 75