not crumble into fine particles. Decayed
wood breaks easily and crumbles.
wood breaks easily and crumbles.
Figure 4 shows shavings removed with
an auger from a cedar pole; figure 5
shows the same from a Douglas fir pole.
Sound fibrous wood in each case is on
the left. Decayed wood, which easily
crumbles to small particles, can be seen
on the right.
an auger from a cedar pole; figure 5
shows the same from a Douglas fir pole.
Sound fibrous wood in each case is on
the left. Decayed wood, which easily
crumbles to small particles, can be seen
on the right.
IV. INSPECTION OF STRUCTURES
4.1. PREPARATION FOR INSPECTION.
Prior to the regular inspection, determine
which poles or structures (for obvious
reasons) will be replaced in the near future
and either eliminate them from the program
altogether or identify them for reduced
preventive maintenance.
Prior to the regular inspection, determine
which poles or structures (for obvious
reasons) will be replaced in the near future
and either eliminate them from the program
altogether or identify them for reduced
preventive maintenance.
4.2. IDENTIFICATION OF SUBSTANDARD
STRUCTURES. Mark with a wide band of red
paint, or similar identification, any pole or
crossarm which inspection as follows
identifies as being sufficiently decayed or
deteriorated to require replacement. Refrain
from climbing such a structure or working
from a marked crossarm unless adequate
measures have been taken to prevent an
accident.
STRUCTURES. Mark with a wide band of red
paint, or similar identification, any pole or
crossarm which inspection as follows
identifies as being sufficiently decayed or
deteriorated to require replacement. Refrain
from climbing such a structure or working
from a marked crossarm unless adequate
measures have been taken to prevent an
accident.
NOTE: When replacing a deteriorated pole
with a new pole, DO NOT cut off the top of
the new pole.
with a new pole, DO NOT cut off the top of
the new pole.
4.3. GROUNDLINE INSPECTION AND
TREATMENT.-
TREATMENT.-
4.3.1. Inspection frequency.-
Frequency in years
Cedar
Fir and
larch
Initial
Reinspect-Sound pole
Reinspect-Minor decay
Reinspect-Sound pole
Reinspect-Minor decay
15
12
12
6
12
12
12
6
Figure 4. Cedar shavings.
Figure 5. Douglas fir shavings.
5 (FIST 4- 6)