Type

Suitable voltage(kV)

Rated short-circuit current(kA/1S)

Size of earth wire(mm2)

Insulating length of rod(rope)(mm)

JDB-1

0.5

4.2

16-25

≥100

JDB-2

0.5-110

6.5-13

25-50

≥300-1300

JDB-3

10-220

6.5-13

25-50

≥700-2000

JDB-4

10-500

6.5-13

25-50

≥900-3700

JDB-5

110-220

6.5-13

25-50

≥1300-2100

JDB-6

110-500

6.5-13

25-50

≥1300-3700

JDB-7

10-200

6.5-13

25-50

≥700-1300

JDB-8

10-35

6.5-13

25-50

≥300-2100

JDB-9

220-500

6.5-13

25-50

≥700-900