Original Version
Rule 49.1-C
49.1-C.
Setting of Wood Poles
The depths of pole settings are
given in Table 6 are applicable to wood poles set in firm soil or in solid
rock. Where the soil is not firm deeper
settings or special methods of pole setting should be resorted to. Where unguyed poles are set subject to heavy
strains, or at corners or curves, a greater depth should be used. Guyed poles may be set not more than one
foot less than the depths specified in Table 6 provided the guys do not assume
any normal working load under conditions of no wind and the resulting depths of
settings are not less than 3 feet.
For communication lines, sawed
poles of a cross section of 36 square inches or less may not be set to a depth
of 6 inches less than the specifications shown in the following Table.
Metallic poles and prestressed
concrete that are set directly in firm soil or rock shall be set at least as
deep as specified in Table 6 for wood poles. Where the resultant bearing
surface is not sufficient to prevent over- turning or excessive movement of the
pole at the ground line under maximum loading conditions, special measure such
as heel and toe bracing, setting in concrete, or bolting to a concrete
foundation shall be employed.
Table 6 Pole Setting Depths for Wood Pole |
||
Total length of pole (feet) |
Depth in soil (feet) |
Depth in Rock (feet) |
20 |
4 |
3 |
25 |
4 ½ |
3 |
30 |
5 |
3 |
35 |
5 |
3 ½ |
40 |
5 ½ |
3 ½ |
45 |
6 |
4 |
50 |
6 ½ |
4 |
55 |
7 |
4 ½ |
60 |
7 |
4 ½ |
65 |
7 ½ |
5 |
70 |
7 ½ |
5 |
75 |
8 |
5 ½ |
80 |
8 |
6 |
Strikeout and Underline Version
Rule 49.1-C
49.1-C.
Setting of Wood Poles
The depths of pole settings are
given in Table 6 are applicable to wood poles set in firm soil or in solid
rock. Where the soil is not firm deeper
settings or other special methods of pole setting should be resorted
to used. Where unguyed poles are
set subject to heavy strains, or at corners or curves, a greater depth deeper
settings or other special measures to prevent overturning or excessive movement
of the pole at the ground line should be used. Guyed poles may be set not more than one foot less than the
depths specified in Table 6 provided the guys do not assume any normal working
load under conditions of no wind and the resulting depths of settings are not
less than 3 feet. For communication lines, sawed
poles of a cross section of 36 square inches or less may not be set to a depth
of 6 inches less than the specifications shown in the following Table.
Metallic and, prestressed
concrete poles, or poles of other non-wood materials that are set
directly in firm soil or rock shall be set at least as deep as specified in
Table 6 for wood poles. Where the resultant bearing of these poles
surface is not sufficient to prevent over- turning or excessive movement of the
pole at the ground line under maximum loading conditions, special measure such
as heel and toe bracing, setting in concrete, or bolting to a concrete
foundation, or other special methods shall be employed used.
Table 6 Pole Setting Depths for Wood Pole |
||
Total length of pole (feet) |
Depth in soil (feet) |
Depth in Rock (feet) |
20 |
4 |
3 |
25 |
4 ½ |
3 |
30 |
5 |
3 |
35 |
5 |
3 ½ |
40 |
5 ½ |
3 ½ |
45 |
6 |
4 |
50 |
6 ½ |
4 |
55 |
7 |
4 ½ |
60 |
7 |
4 ½ |
65 |
7 ½ |
5 |
70 |
7 ½ |
5 |
75 |
8 |
5 ½ |
80 |
8 |
6 |
Final Version
Rule 49.1-C
49.1-C.
Setting of Wood Poles
The depths of pole settings are
given in Table 6 are applicable to wood poles set in firm soil or in solid
rock. Where the soil is not firm deeper
settings or other special methods of pole setting should be used. Where unguyed poles are set subject to heavy
strains, or at corners or curves, deeper settings or other special measures to
prevent overturning or excessive movement of the pole at the ground line should
be used.
For communication lines, sawed
poles of a cross section of 36 square inches or less may not be set to a depth
of 6 inches less than the specifications shown in the following Table.
Metallic and, prestressed
concrete poles, or poles of other non-wood materials that are set directly in
firm soil or rock shall be set at least as deep as specified in Table 6 for
wood poles. Where the resultant bearing of these poles surface is not sufficient
to prevent over- turning or excessive movement of the pole at the ground line
under maximum loading conditions, special measure such as heel and toe bracing,
setting in concrete, or bolting to a concrete foundation, or other special
methods shall be used.
Table 6 Pole Setting Depths for Wood Pole |
||
Total length of pole (feet) |
Depth in soil (feet) |
Depth in Rock (feet) |
20 |
4 |
3 |
25 |
4 ½ |
3 |
30 |
5 |
3 |
35 |
5 |
3 ½ |
40 |
5 ½ |
3 ½ |
45 |
6 |
4 |
50 |
6 ½ |
4 |
55 |
7 |
4 ½ |
60 |
7 |
4 ½ |
65 |
7 ½ |
5 |
70 |
7 ½ |
5 |
75 |
8 |
5 ½ |
80 |
8 |
6 |