环网

实际开关号

环内编号

L1

7,6,5,4,3,2,20,19,18,33

1~10

L2

14,13,12,11,10,9,34

1~7

L3

11,10,9,8,7,6,5,4,3,2,21,20,19,18,35

1~15

L4

17,16,15,14,13,12,11,10,9,8,7,6,25,26,27,28,29,30,31,32,36

1~21

L5

24,23,22,28,27,26,25,5,4,3,37

1~11