Outdoor Tripolar Vertical and Horizontal Mounting Isolators

Rated Voltage KV 12 24 36

Withstand voltage

On Power -Frequency

50HZ for 1 min

To Earth        KV      38        50         70

Between KV   45    60    80

terminal

Impulse 1.2/50 u sec

To Earth         KV        95        125     170

Between KV   110  145 195

terminal

Withstand Current

Rated Current                 A               400                           630

Short Time                      KA            12.5                           16

Current for 1 sec

Peak Current                 KA             32                               40

Breaking Capacity                       A     10

for active circuits(cos%=0 .8)

For No-Load Transformers            A       1

For No-Load Lines and Cables       A       5