Change List for this Rule

 

Original Version

Rule 56.4-C4

 

56.4-C4)    Passing on Same Poles: The radial clearances between guys and conductors supported by or attached to the same poles or crossarms shall be not less than as specified in Table 2, Case 19 except that the clearance between guys and communication messenger and/or cable attached directly to surface of pole may be less than the 3 inches specified in Table 2, Case 19, Column C provided: the guy is not a guy in proximity, or all parts of the guy are not less than 6 feet below 0-750-volt supply conductors supported on same pole, and a wood guard or equivalent is placed on the messenger and/or cable j also, a guy attached to a pole which supports supply conductors at a distance of not less than 6 feet above communication messenger and/or cable shall (1) have an insulator placed in the guy above the communication messenger and/or cable at a distance of not less than 6 feet horizontally from the pole, or (2) have an insulator placed in the guy not less than 3 inches nor more than 6 inches above the messenger and/or cable, and a wood guard or equivalent placed on the messenger and/or cable.


Strikeout and Underline Version

Rule 56.4-C4

 

56.4-C4)    Passing on Same Poles: The radial clearances between guys and conductors supported by or attached to the same poles or crossarms shall be not be less than as specified in Table 2, Case 19.

except that the clearance between guys and communication messenger and/or cable attached directly to surface of pole may be less than the 3 inches specified in Table 2, Case 19, Column C provided: the guy is not a guy in proximity, or all parts of the guy are not less than 6 feet below 0-750-volt supply conductors supported on same pole, and a wood guard or equivalent is placed on the messenger and/or cable j also, a guy attached to a pole which supports supply conductors at a distance of not less than 6 feet above communication messenger and/or cable shall (1) have an insulator placed in the guy above the communication messenger and/or cable at a distance of not less than 6 feet horizontally from the pole, or (2) have an insulator placed in the guy not less than 3 inches nor more than 6 inches above the messenger and/or cable, and a wood guard or equivalent placed on the messenger and/or cable.

 

EXCEPTION:    The clearance between guys and communication messenger and/or cable attached directly to the surface of a pole may be less than the 3 inches specified in Table 2, Case 19, Column C provided:

 

a)    A suitable guard is placed on the messenger and/or cable or guy wire to prevent physical contact and resultant mechanical damage; and

 

b)    The guy is not a guy in proximity; or

 

c)    An insulator is placed in the guy above the communication messenger and/or cable at a vertical distance of not less than 8 feet below the supply conductor level, (see Figure 562 A ); or

 

d)    All parts of the guy within a radial distance of 6 feet from the face of pole are 6 feet or more below the 0 - 750 volt supply conductors supported on the same pole (see Figure 562B ); or

 

e)    The guy is attached to a pole which supports supply conductors that are 6 feet or more above the communication messenger and/or cable, provided:

 

1)    An insulator is placed in the guy above the communication messenger and/or cable at a distance of 6 feet or more horizontally from the pole and not less than one foot below the level of the lowest supply conductor (see Figure 562 C ); or

 

2)    An insulator is placed in the guy 3 to 6 inches above the messenger and/or cable. In lieu of a porcelain insulator a suitable fiberglass insulating rod or equivalent that meets the requirements of Rule 56.8 and extends 6 inches or more above and below the communication messenger and/or cable may be used (see Figure 562 D).

 

 

Final Version

Rule 56.4-C4

 

56.4-C4)    Passing on Same Poles: The radial clearances between guys and conductors supported by or attached to the same poles or crossarms shall not be less than as specified in Table 2, Case 19.

 

EXCEPTION:    The clearance between guys and communication messenger and/or cable attached directly to the surface of a pole may be less than the 3 inches specified in Table 2, Case 19, Column C provided:

 

a)    A suitable guard is placed on the messenger and/or cable or guy wire to prevent physical contact and resultant mechanical damage; and

 

b)    The guy is not a guy in proximity; or

 

c)    An insulator is placed in the guy above the communication messenger and/or cable at a vertical distance of not less than 8 feet below the supply conductor level, (see Figure 56-2A ); or

 

d)    All parts of the guy within a radial distance of 6 feet from the face of pole are 6 feet or more below the 0 - 750 volt supply conductors supported on the same pole (see Figure 56-2B ); or

 

e)    The guy is attached to a pole which supports supply conductors that are 6 feet or more above the communication messenger and/or cable, provided:

 

1)    An insulator is placed in the guy above the communication messenger and/or cable at a distance of 6 feet or more horizontally from the pole and not less than one foot below the level of the lowest supply conductor (see Figure 56-2C ); or

 

2)    An insulator is placed in the guy 3 to 6 inches above the messenger and/or cable. In lieu of a porcelain insulator a suitable fiberglass insulating rod or equivalent that meets the requirements of Rule 56.8 and extends 6 inches or more above and below the communication messenger and/or cable may be used (see Figure 56-2D).