Change List for this Rule

 

Original Version
Rule 54.4-D2


54.4-D2)    Center Line Clearances For 750 Volts and Above:  The clearances referred to in Table 1, Case 8 Columns E and F, apply as follows with respect to voltage.

 

750-7500volts

15 inches

7500-46,000 volts

18 inches

46,000 volts and above

18 inches plus inch per kV in excess of 46kV

 

These clearances from center line of pole need not apply to conductors of 750-7500 volts and 7500-21,000 volts supported in vertical configuration in partial underground distribution provided: a) such conductors have clearances from surface of pole of not less than 6 inches, b) in tangent construction, conductors so supported are not attached to more than one side of pole, and c) in dead-end construction conductors so supported are not attached to more than three sides of a pole (there being four sides, see App. G, Fig. 88).

 

Strikeout and Underline Version
Rule 54.4-D2


54.4-D2)    Center Line Clearances For 750 Volts and Above:  The clearances referred to in Table 1, Case 8 Columns E and F, apply as follows with respect to voltage.

 

750-7500volts

15 inches

7500-46,000 volts

18 inches

46,000 volts and above

18 inches plus inch per kV in excess of 46kV

 

These clearances from center line of pole need not apply to conductors of 750-7500 volts and 7500-21,000 22,500 volts supported in vertical configuration in partial underground distribution provided: a) such conductors have clearances from surface of pole of not less than 6 inches, b) in tangent construction, conductors so supported are not attached to more than one side of pole, and c) in dead-end construction conductors so supported are not attached to more than three sides of a pole (there being four sides, see App. G, Fig. 88).

 

Final Version
Rule 54.4-D2


54.4-D2)    Center Line Clearances For 750 Volts and Above:  The clearances referred to in Table 1, Case 8 Columns E and F, apply as follows with respect to voltage.

 

750-7500volts

15 inches

7500-46,000 volts

18 inches

46,000 volts and above

18 inches plus inch per kV in excess of 46kV

 

These clearances from center line of pole need not apply to conductors of 750-7500 volts and 7500-22,500 volts supported in vertical configuration in partial underground distribution provided: a) such conductors have clearances from surface of pole of not less than 6 inches, b) in tangent construction, conductors so supported are not attached to more than one side of pole, and c) in dead-end construction conductors so supported are not attached to more than three sides of a pole (there being four sides, see App. G, Fig. 88).