Original Version
Rule 54.6-F
54.6-F. Terminals of Encased Riser
and Runs
Terminals of risers or runs shall not extend
above the level of line conductors to which the terminal leads are connected
except as follows:
Where the line conductors are installed in
vertical configuration in partial underground distribution, or where the
line conductors are dead-ended on the opposite side of the arms from the
terminals and no line conductors supported on the same crossarm and the same
side of pole extend past the terminals and no buckram construction is involved,
or
Where conductors in excess of 7500 volts are installed in vertical configuration
on crossarms, and the terminals are mounted on the same arms which support
the conductors to which the terminals are connected.
At the upper end of vertical runs or risers on wood poles, any terminal or
terminal fitting within distances from center line of poles less than as
specified in Table 1, Case 8, shall be protected by a crossarm or wood block
placed above it at a distance not exceeding 4 inches. The wood block
may be omitted if the terminal or terminal fitting at the upper end of a
vertical run or riser of 750 volts or less is on the same side of a pole
as, and not more than 1 foot below a transformer.
Cable or conduit bends and the terminals of riser or runs of conductors of
more than 750 volts on climbable poles or structures shall be arranged with
as little exposed surface as practicable but are not required to be covered
by a protective covering provided that no portion of the terminal or associated
unprotected conductors are within the climbing space or within the clearance
from center line of pole specified in Table 1, case 8 (15 or 18 inches).
All exposed grounded surfaces of such terminal fittings and bends of risers
and runs shall not be less than 18 inches vertically above the conductor
level, and not less than 2 feet radially from any conductor at the next conductor
level, of unprotected conductors of another circuit which is entirely below
the level of the circuit to which the riser is connected.
The terminal fittings of risers or runs of conductors of 0-750 volts installed
on the surfaces of poles shall of be within the climbing space and unprotected
leads to or from such terminals shall not pass within the climbing space
but may have a clearance of less than 15 inches from center line of pole
(Table 1, Case 8) and less than 3 inches from the surface of pole or crossarm
(Table 1, Case 9). It is recommended that conductors from such terminal
fittings be suitably installed and, where practicable, carried as protected
lateral runs on the bottom surface of crossarms (see Rule 54.6-C)
In partial underground distribution (750-22,500 volts in vertical configuration
on non-climbable poles), energized portions of the terminals may be less
than the clearances from center line of pole specified in Table 1, Case 8,
Column E (15 or 18 inches) but shall be not less than 6 inches from the surface
of the non-climbable metal pole and grounded metal surfaces associated therewith.
The Vertical clearances between the lowest point of lead wires of a riser
or run (vertical or lateral) and the next conductor level below shall conform
to the requirements specified in Rule 54.4-C6.
See App. G, Fig. 61
Strikeout and Underline Version
Rule 54.6-F
54.6-F. Terminals of Encased Riser
and Runs
Terminals of risers or runs shall not extend
above the level of line conductors to which the terminal leads are connected
except as follows:
Where the line conductors are installed in vertical
configuration in partial underground distribution, or where the line conductors
are dead-ended on the opposite side of the arms from the terminals and no
line conductors supported on the same crossarm and the same side of pole extend
past the terminals and no buckram construction is involved, or
Where conductors in excess of 7500 volts are installed in vertical configuration
on crossarms, and the terminals are mounted on the same arms which support
the conductors to which the terminals are connected.
At the upper end of vertical runs or risers on wood poles, any terminal
or terminal fitting within distances from center line of poles less than
as specified in Table 1, Case 8, shall be protected by a crossarm or wood
block placed above it at a distance not exceeding 4 inches. The wood
block may be omitted if the terminal or terminal fitting at the upper end
of a vertical run or riser of 750 volts or less is on the same side of a
pole as, and not more than 1 foot below a transformer or not less than
3 inches below the lowest conductor of a rack, and such terminal fittings
shall be approximately centered in the vertical plane under the rack,
or where the conductors of a vertical run or riser are enclosed in plastic
pipe (sec Rule 22.2-C) and do not terminate in a grounded terminal or terminal
fitting.
Cable or conduit bends and the terminals of riser or runs of conductors
of more than 750 volts on climbable poles or structures shall be arranged
with as little exposed surface as practicable but are not required to be
covered by a protective covering provided that no portion of the terminal
or associated unprotected conductors are within the climbing space or within
the clearance from center line of pole specified in Table 1, case 8 (15 or
18 inches). All exposed grounded surfaces of such terminal fittings
and bends of risers and runs shall not be less than 18 inches vertically
above the conductor level, and not less than 2 feet radially from any conductor
at the next conductor level, of unprotected conductors of another circuit
which is entirely below the level of the circuit to which the riser is connected.
The terminal fittings of risers or runs of conductors of 0-750 volts installed
on the surfaces of poles shall of be within the climbing space and unprotected
leads to or from such terminals shall not pass within the climbing space but
may have a clearance of less than 15 inches from center line of pole (Table
1, Case 8) and less than 3 inches from the surface of pole or crossarm (Table
1, Case 9). It is recommended that conductors from such terminal fittings
be suitably installed and, where practicable, carried as protected lateral
runs on the bottom surface of crossarms (see Rule 54.6-C)
In partial underground distribution (750-22,500 volts in vertical configuration
on non-climbable poles), energized portions of the terminals may be less than
the clearances from center line of pole specified in Table 1, Case 8, Column
E (15 or 18 inches) but shall be not less than 6 inches from the surface of
the non-climbable metal pole and grounded metal surfaces associated therewith.
The Vertical clearances between the lowest point of lead wires of a riser
or run (vertical or lateral) and the next conductor level below shall conform
to the requirements specified in Rule 54.4-C6.
See App. G, Fig. 61
Final Version
Rule 54.6-F
54.6-F. Terminals of Encased Riser
and Runs
Terminals of risers or runs shall not extend
above the level of line conductors to which the terminal leads are connected
except as follows:
Where the line conductors are installed in
vertical configuration in partial underground distribution, or where the
line conductors are dead-ended on the opposite side of the arms from the
terminals and no line conductors supported on the same crossarm and the same
side of pole extend past the terminals and no buckram construction is involved,
or
Where conductors in excess of 7500 volts are installed in vertical configuration
on crossarms, and the terminals are mounted on the same arms which support
the conductors to which the terminals are connected.
At the upper end of vertical runs or risers on wood poles, any terminal or
terminal fitting within distances from center line of poles less than as
specified in Table 1, Case 8, shall be protected by a crossarm or wood block
placed above it at a distance not exceeding 4 inches. The wood block
may be omitted if the terminal or terminal fitting at the upper end of a
vertical run or riser of 750 volts or less is on the same side of a pole
as, and not more than 1 foot below a transformer or not less than
3 inches below the lowest conductor of a rack, and such terminal fittings
shall be approximately centered in the vertical plane under the rack,
or where the conductors of a vertical run or riser are enclosed in plastic
pipe (see Rule 22.2-C) and do not terminate in a grounded terminal or terminal
fitting.
Cable or conduit bends and the terminals of riser or runs of conductors of
more than 750 volts on climbable poles or structures shall be arranged with
as little exposed surface as practicable but are not required to be covered
by a protective covering provided that no portion of the terminal or associated
unprotected conductors are within the climbing space or within the clearance
from center line of pole specified in Table 1, case 8 (15 or 18 inches).
All exposed grounded surfaces of such terminal fittings and bends of risers
and runs shall not be less than 18 inches vertically above the conductor
level, and not less than 2 feet radially from any conductor at the next conductor
level, of unprotected conductors of another circuit which is entirely below
the level of the circuit to which the riser is connected.
The terminal fittings of risers or runs of conductors of 0-750 volts installed
on the surfaces of poles shall of be within the climbing space and unprotected
leads to or from such terminals shall not pass within the climbing space
but may have a clearance of less than 15 inches from center line of pole
(Table 1, Case 8) and less than 3 inches from the surface of pole or crossarm
(Table 1, Case 9). It is recommended that conductors from such terminal
fittings be suitably installed and, where practicable, carried as protected
lateral runs on the bottom surface of crossarms (see Rule 54.6-C)
In partial underground distribution (750-22,500 volts in vertical configuration
on non-climbable poles), energized portions of the terminals may be less
than the clearances from center line of pole specified in Table 1, Case 8,
Column E (15 or 18 inches) but shall be not less than 6 inches from the surface
of the non-climbable metal pole and grounded metal surfaces associated therewith.
The Vertical clearances between the lowest point of lead wires of a riser
or run (vertical or lateral) and the next conductor level below shall conform
to the requirements specified in Rule 54.4-C6.
See App. G, Fig. 61