Original Version

Rule 54.4-D7

54.4-D7)    Dead Ended in Horizontal Configuration:

a)    0-7500 Volts (see App. G, Figs 13 and 14): A conductor of a circuit of 0-7500 Volts in horizontal configuration on a crossarm may be dead ended (at conductor terminations, angles, corners and for change in conductor size) in line with the center line of pole or in line with a distance from center line of pole less than 15 inches specified in Table 1, Case 8 provided:

Where the circuit concerned is supported on a line arm only (with no related buck arm present) a conductor is so dead ended in one direction only with climbing space maintained on the opposite side of the pole and with the energized portions of the conductor so dead ended maintained at a clearance of not less than 20 inches from center line of pole;

In corner construction a conductor is so dead ended in one direction only from the line arm and one direction only from the buck arm with the energized portions of conductors so dead ended maintained at a clearance of not less than 30 inches from the surface of the pole and required climbing space maintained (see Rule 54.7); and

Where a conductor is so dead ended with a line arm and related buck arm present, no transformer or other apparatus carried on the pole is connected to the circuit concerned.

b)    More than 7500 Volts (see App. G, Fig 14): A conductor of a circuit of more than 7500 volts in horizontal configuration on a crossarm may be dead ended (at conductor terminations, angles, corners and for change in conductor size) in line with the center line of pole or in line with a distance from center line of pole less than 18 inches specified in Table 1, Case 8 provided:

Where the circuit concerned is supported on a line arm only, except at the top of a pole under the provisions of Rule 54.4-D8b, a conductor is so dead ended in one direction only with climbing space maintained on the opposite side of the pole and with the energized portions of the conductor so dead ended maintained at a clearance of not less than 24 inches from the center line of pole;

In corner construction a conductor is so dead ended in one direction only from the line arm and one direction only from the buck arm with the energized portions of conductors so dead ended maintained at a clearance of not less than 30 inches from the surface of the pole and required climbing space maintained (see Rule 54.7); and

Where a conductor is so dead ended with a line arm and related buck arm present, no transformer or other apparatus carried on the pole is connected to the circuit concerned.
 

The clearance between the center line of the pole and the energized portion of the middle conductor of a single three-wire circuit of more than 7,500 volts dead-ended in horizontal configuration need not be more than the clearance specified in Table 1, Case 8, Column E, provided:

There is no circuit on the pole above the circuit so constructed; no transformer or other apparatus shall be connected to such a circuit; all portions of the middle line conductor so deadended, and jumpers connected thereto, are at least 18 inches radially from all points on the boundaries of the climbing space at the level of the conductor concerned; none of the exceptions of Rule 38, Table 2, may be used for circuits so constructed.

Strikeout and Underline Version

Rule 54.4-D7

54.4-D7)    Dead Ended in Horizontal Configuration: This space is intentionally left blank.

a)    0-7500 Volts (see App. G, Figs 13 and 14): A conductor of a circuit of 0-7500 Volts in horizontal configuration on a crossarm may be dead ended (at conductor terminations, angles, corners and for change in conductor size) in line with the center line of pole or in line with a distance from center line of pole less than 15 inches specified in Table 1, Case 8 provided:

Where the circuit concerned is supported on a line arm only (with no related buck arm present) a conductor is so dead ended in one direction only with climbing space maintained on the opposite side of the pole and with the energized portions of the conductor so dead ended maintained at a clearance of not less than 20 inches from center line of pole;

In corner construction a conductor is so dead ended in one direction only from the line arm and one direction only from the buck arm with the energized portions of conductors so dead ended maintained at a clearance of not less than 30 inches from the surface of the pole and required climbing space maintained (see Rule 54.7); and

Where a conductor is so dead ended with a line arm and related buck arm present, no transformer or other apparatus carried on the pole is connected to the circuit concerned.

b)    More than 7500 Volts (see App. G, Fig 14): A conductor of a circuit of more than 7500 volts in horizontal configuration on a crossarm may be dead ended (at conductor terminations, angles, corners and for change in conductor size) in line with the center line of pole or in line with a distance from center line of pole less than 18 inches specified in Table 1, Case 8 provided:

Where the circuit concerned is supported on a line arm only, except at the top of a pole under the provisions of Rule 54.4-D8b, a conductor is so dead ended in one direction only with climbing space maintained on the opposite side of the pole and with the energized portions of the conductor so dead ended maintained at a clearance of not less than 24 inches from the center line of pole;

In corner construction a conductor is so dead ended in one direction only from the line arm and one direction only from the buck arm with the energized portions of conductors so dead ended maintained at a clearance of not less than 30 inches from the surface of the pole and required climbing space maintained (see Rule 54.7); and

Where a conductor is so dead ended with a line arm and related buck arm present, no transformer or other apparatus carried on the pole is connected to the circuit concerned.

The clearance between the center line of the pole and the energized portion of the middle conductor of a single three-wire circuit of more than 7,500 volts dead-ended in horizontal configuration need not be more than the clearance specified in Table 1, Case 8, Column E, provided:

There is no circuit on the pole above the circuit so constructed; no transformer or other apparatus shall be connected to such a circuit; all portions of the middle line conductor so deadended, and jumpers connected thereto, are at least 18 inches radially from all points on the boundaries of the climbing space at the level of the conductor concerned; none of the exceptions of Rule 38, Table 2, may be used for circuits so constructed.

Final Version

Rule 54.4-D7

54.4-D7)    This space is intentionally left blank.