Original Version
Rule 54.4-C4b
    
54.4-C4b)    Conductors of More than 750 Volts: Where
conductors of more than 750 Volts are supported in vertical configuration
directly on a pole without the use of crossarms at the line terminations,
angles or corners, the following requirements apply:
  
        
The vertical separation between conductors of the same circuit
shall not be less than the pin spacings specified in Table 2, Case 15;
    
The vertical separation between conductors of different circuits shall not
be less than the clearances specified in Table 2, cases 8 to 13, inclusive;
    
Not more than two conductors of a circuit of 750-5000 volts shall be supported
directly on a pole in vertical configuration without the use of crossarms. 
The number of conductors of a circuit of more than 5000 volts so supported
is not limited.  Branch circuits may be taken from such construction
without the use of crossarms provided a climbing and working space as specified
in Rule 54.7 is maintained; and
    
The clearance of conductors from surface of pole shall not be less than as
specified in Rule 54.4-D6b.
    
See Rule 54.7-A1 for climbing space requirements for conductors dead ended
on poles in vertical configuration.
    
 
    
    
Strikeout and Underline Version
Rule 54.4-C4b
    
54.4-C4b)    Conductors of More than 750 Volts 
    supported on climbable poles: Where conductors of more than 750 Volts
are supported in vertical configuration directly on a climbable pole
without the use of crossarms at the line terminations, angles or corners,
the following requirements apply:
      
    
The vertical separation between conductors of the same
circuit shall not be less than the pin spacings specified in Table 2, Case
15;
        
The vertical separation between conductors of different circuits shall not
be less than the clearances specified in Table 2, cases 8 to 13, inclusive;
        
Not more than two conductors of a circuit of 750-5000 volts shall be supported
directly on a pole in vertical configuration without the use of crossarms. 
The number of conductors of a circuit of more than 5000 volts so supported
is not limited.  Branch circuits may be taken from such construction
without the use of crossarms provided a climbing and working space as specified
in Rule 54.7 is maintained; and
        
The clearance of conductors from surface of pole shall not be less than as
specified in Rule 54.4-D6b.
        
        
See Rule 54.7-A1 for climbing space requirements for conductors dead ended
on poles in vertical configuration
        
    
Final Version
Rule 54.4-C4b
        
54.4-C4b)    Conductors of More than 750 Volts
supported on climbable poles: Where conductors of more than 750 Volts are
supported in vertical configuration directly on a climbable pole without
the use of crossarms at the line terminations, angles or corners, the following
requirements apply:
          
    
The vertical separation between conductors of the same
circuit shall not be less than the pin spacings specified in Table 2, Case
15;
            
The vertical separation between conductors of different circuits shall not
be less than the clearances specified in Table 2, cases 8 to 13, inclusive;
            
Not more than two conductors of a circuit of 750-5000 volts shall be supported
directly on a pole in vertical configuration without the use of crossarms. 
The number of conductors of a circuit of more than 5000 volts so supported
is not limited.  Branch circuits may be taken from such construction
without the use of crossarms provided a climbing and working space as specified
in Rule 54.7 is maintained; and
            
The clearance of conductors from surface of pole shall not be less than as
specified in Rule 54.4-D6b.
            
        
See Rule 54.7-A1 for climbing space requirements for conductors dead ended
on poles in vertical configuration