Original Version
Rule 54.4-D8
54.4-D8) At Top of Pole:
Clearance Between a Single Conductor and Center Line of Pole: A single conductor of a circuit may be attached directly to the top of a pole or to a crossarm at the top of a pole at a distance less than as specified in Table 1, Case 8. Where a transformer(s) or similar apparatus is connected to a circuit so arranged, a vertical clearance of not less than 30 inches shall be maintained between its un-energized metal parts and the primary conductor directly above.
Where this construction is used, no conductors of other circuits on the pole shall be less than 6 feet below the pole-top conductor.
EXCEPTION: In rural districts this clearance may be reduced to 4 feet when the primary circuit supplies a 0-750 volt circuit below.
For pole-top triangular and vertical construction without the use of wood crossarms see Rule 54.11.
Strikeout and Underline Version
Rule 54.4-D8
54.4-D8) At Top of Pole:
Clearance Between a Single Conductor and Center Line of Pole: A single conductor of a circuit
may be attached directly to the top of a pole or to a crossarm at the top
of a pole at a distance less than as specified in
Table 1, Case 8
. Where a transformer(s) or similar apparatus is connected to a circuit
so arranged, a vertical clearance of not less than 30 inches shall be maintained
between its unenergized metal parts and the lowest primary line
conductor of the circuit directly above.
Where
this construction is used, no conductors of other circuits on the pole shall
be less than 6 feet below the pole-top conductor.
EXCEPTION:
In rural districts this
clearance may be reduced to 4
feet when the primary circuit supplies a
0-750 volt circuit below.
For pole-top triangular and vertical construction without the use of wood crossarms see Rule 54.11.
Final Version
Rule 54.4-D8
54.4-D8) At Top of Pole:
Clearance Between a Single Conductor and Center Line of Pole: A single conductor
of a circuit may be attached directly to the top of a pole or to a crossarm
at the top of a pole at a distance less than as specified in
Table 1, Case 8. Where a transformer(s) or similar apparatus is connected to a circuit
so arranged, a vertical clearance of not less than 30 inches shall be maintained
between its unenergized metal parts and the lowest primary line conductor
of the circuit directly above.
For pole-top triangular and vertical
construction without the use of wood crossarms see Rule 54.11.