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 ½
inch per kV in excess of 46kV
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 ½
inch per kV in excess of 46kV
These clearances from center line of pole need
not apply to conductors of 750-7500 volts and 7500-20,000 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).
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 ½
inch per kV in excess of 46kV
These clearances from center line of pole
need not apply to conductors of 750-7500 volts and 7500-20,000 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).