18 / 30 (36 KV) )Permissible Service Voltage : 19 / 33 KV)
6/10 (12) K; Permissible Service Voltage : 6.35/11KV
18 / 30 (36 KV) (Permissible Service Voltage : 19/33 KV)
12 / 20 (24 KV) (Permissible Service Voltage : 12.9 / 22 KV)
8.7 / 15 (17.5 KV) (Permissible Service Voltage : 9.4 / 16.25 KV)
