Original version

Rule 54.4-C7

54.4-C7)    Voltages of More Than 68,000 Volts:

a)    Crossing or Colinear with Wires or Cables of Other Lines:  The clearances specified in Table 2, Column I, Cases 1 to 7 inclusive, for conductors of more than 68,000 volts crossing or collinear with conductors, guys and messengers which are not supported on the same poles, shall be increased by ½ inch for each kilovolt above 68kv.

b)    Supported on the same Structure: The vertical separation between conductors on line arms and conductors on line arms and conductors on related buck arms (Table 2, Column I, Case 14) and the horizontal separation of conductors on crossarms (Table 2, Column I, Case 15) shall be increased ½ inch for each kilovolt above 68kv.

c)    Supported On Post Insulators

Supported on horizontal post insulators, the vertical clearances shall be increased by ½ inch for each kilovolt above 68 kV.

Strikeout and Underline version

Rule 54.4-C7

54.4-C7    Voltages of More Than 68,000 Volts:

a)    Crossing or Colinear with Wires or Cables of Other Lines:  The clearances specified in Table 2, Column I, Cases 1 to 7 inclusive, for conductors of more than 68,000 volts crossing or collinear with conductors, guys and messengers which are not supported on the same poles, shall be increased by ½ inch for each kilovolt above 68kv.

b)    Supported on the same Structure: The vertical separation between conductors on line arms and conductors on line arms and conductors on related buck arms (Table 2, Column I, Case 14) and the horizontal separation of conductors on crossarms (Table 2, Column I, Case 15) shall be increased ½ inch for each kilovolt above 68kv.

c)    Supported On Post Insulators

Supported on horizontal post insulators, the vertical clearances shall be increased by ½ inch for each kilovolt above 68 kV.

Final version

Rule 54.4-C7

54.4-C7    (Deleted)